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  • American Chemical Society  (684,064)
  • Molecular Diversity Preservation International  (231,479)
  • Oxford University Press  (165,327)
  • American Geophysical Union  (87,939)
  • 2015-2019  (598,474)
  • 2000-2004  (196,036)
  • 1990-1994  (213,377)
  • 1975-1979  (121,578)
  • 1945-1949  (39,344)
Collection
Publisher
Language
Years
Year
  • 1
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Philosophy, Introductions.
    Notes: Mind -- Knowledge -- Language -- Science -- Morality -- Politics -- Law -- Metaphysics -- Philosophy
    Pages: xviii, 412 p.
    ISBN: 0-19-518393-2
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  • 2
    Unknown
    New York : Oxford University Press
    Keywords: Anti-globalization movement. ; Globalization, Economic aspects. ; Globalization, Social aspects.
    Notes: I. Coping with anti-globalization -- 1. Anti-globalization: why? -- 2. Globalization: socially, not just economically, benign -- 3. Globalization is good but not good enough -- 4. Non-government organizations -- II. Globalization's human face: trade and corporations -- 5. Poverty: enhanced or diminished? -- 6. Child labor: increased or reduced? -- 7. Women: harmed or helped? -- 8. Democracy at bay? -- 9. Culture imperiled or enriched? -- 10. Wages and labor standards at stake? -- 11. Environment in peril? -- 12. Corporations: predatory or beneficial? -- III. Other dimensions of globalization -- 13. The perils of Gung-Ho International Financial capitalism -- 14. International flows of humanity -- IV. Appropriate governance: making globalization work better -- 15. Appropriate governance: an overview -- 16. Coping with downsides -- 17. Accelerating the achievement of social agendas -- 18. Managing transitions: optimal, not maximal, speed -- V. In conclusion -- 19. And so, let us begin anew
    Pages: xi, 308 p.
    ISBN: 0-19-530391-1
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  • 3
    Unknown
    Oxford ; New York : Oxford University Press
    Series in affective science  
    Keywords: Affect (Psychology) ; Electronic books ; Emotions
    Pages: xvii, 1199 p.
    ISBN: 0-19-530205-2
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  • 4
    Unknown
    New York : Oxford University Press
    Religion in America series  
    Keywords: Edwards, Jonathan,, 1703-1758.
    Pages: xii, 194 p.
    ISBN: 0-585-30895-0
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  • 5
    Unknown
    New York : Oxford University Press
    Keywords: Truth.
    Pages: ix, 268 p.
    ISBN: 0-585-32455-7
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  • 6
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Occom, Samson,, 1723-1792. ; African Americans in literature. ; African Americans, Intellectual life. ; American literature, African American authors, History and criticism. ; American literature, Indian authors, History and criticism. ; American literature, 1783-1850, History and criticism. ; American literature, Colonial period, ca. 1600-1775, History and criticism. ; American literature, Revolution, 1775-1783, History and criticism. ; Christian literature, American, History and criticism. ; Christianity and literature, United States, History, 18th century. ; Hymns, English, United States, History and criticism. ; Indians in literature. ; Indians of North America, Intellectual life.
    Pages: vi, 255 p.
    ISBN: 0-19-518567-6
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  • 7
    Unknown
    New York : Oxford University Press
    Keywords: United States, Social policy. ; Public welfare, United States, History.
    Pages: 210 p.
    ISBN: 0-585-35667-X
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  • 8
    Unknown
    Oxford ; New York : Oxford University Press
    Series in affective science  
    Keywords: Autobiographical memory. ; Brain, physiology. ; Emotions. ; Emotions, physiology. ; Memory, physiology. ; Mental Disorders, psychology. ; Psychiatry. ; Psychophysiology.
    Notes: Memory for emotional events / Daniel Reisberg and Friderike Heuer -- The neuroanatomy of emotional memory in humans / Tony W. Buchanan and Ralph Adolphs -- The biopsychology of trauma and memory / Jessica D. Payne ... [et al.] -- Forgetting trauma? / Richard J. McNally, Susan A. Clancy, and Heidi M. Barrett -- Selective memory effects in anxiety disorders : an overview of research findings and their implications / Colin MacLeod and Andrew Mathews -- Memory for emotional and nonemotional events in depression : a question of habit? / Paula Hertel -- Emotion, memory, and conscious awareness in schizophrenia / Jean-Marie Danion ... [et al.] -- Children's memories of emotional events / Robyn Fivush and Jessica McDermott Sales -- Aging and emotional memory / Mara Mather -- Emotion and eyewitness memory / Robin S. Edelstein ... [et al.] -- Emotional memory in survivors of the Holocaust : a qualitative study of oral testimony / Robert N. Kraft
    Pages: xiv, 413 p.
    ISBN: 0-19-518650-8
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  • 9
    Unknown
    New York : Oxford University Press
    Oxford paperback reference  
    Keywords: Christian saints, Biography, Dictionaries. ; Christian saints, Great Britain, Biography, Dictionaries. ; Christian saints, Ireland, Biography, Dictionaries. ; Saints chrétiens, Biographies, Dictionnaires anglais. ; Saints chrétiens, Grande-Bretagne, Biographies, Dictionnaires anglais. ; Saints chrétiens, Irlande, Biographies, Dictionnaires anglais.
    Pages: xxv, 547 p.
    Edition: 4th ed
    ISBN: 0-585-11034-4
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  • 10
    Unknown
    New York : Oxford University Press
    Religion in America series  
    Keywords: Evangelicalism, History. ; Religion and science, History.
    Notes: The history of science and religion : some evangelical dimensions / John Hedley Brooke -- The Puritan thesis revisited / John Morgan -- Christianity and early modern science : the Foster thesis reconsidered / Edward B. Davis -- Science, theology, and society : from Cotton Mather to William Jennings Bryan / Mark A. Noll -- Science and evangelical theology in Britain from Wesley to Orr / David W. Bebbington -- Science, natural theology, and evangelicalism in early nineteenth-century Scotland : Thomas Chalmers and the Evidence controversy / Jonathan R. Topham -- Scriptural geology in America / Rodney L. Stiling -- Situating evangelical responses to evolution / David N. Livingstone -- Telling tales : evangelicals and the Darwin legend / James Moore -- Creating creationism : meanings and uses since the age of Agassiz / Ronald L. Numbers -- A sign for an unbelieving age : evangelicals and the search for Noah's ark / Larry Eskridge -- "The science of duty" : moral philosophy and the epistemology of science in nineteenth-century America / Allen C. Guelzo -- Toward a Christian social science in Canada, 1890-1930 / Michael Gauvreau and Nancy Christie -- Evangelicals, Biblical scholarship, and the politics of the modern American academy / D.G. Hart -- The meaning of science for Christians : a new dialogue on Olympus / George Marsden
    Pages: vi, 351 p.
    ISBN: 0-585-18275-2
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  • 11
    Keywords: Europe, Intellectual life, 18th century. ; Europe, Intellectual life, 19th century. ; Europe, Vie intellectuelle, 18e siècle. ; Europe, Vie intellectuelle, 19e siècle. ; Enlightenment. ; Information resources, Europe, History, 18th century. ; Information resources, Europe, History, 19th century. ; Learning and scholarship, Europe, History, 18th century. ; Learning and scholarship, Europe, History, 19th century. ; Savoir et érudition, Europe, Histoire, 18e siècle. ; Savoir et érudition, Europe, Histoire, 19e siècle. ; Siècle des lumières. ; Sources d'information, Europe, Histoire, 18e siècle. ; Sources d'information, Europe, Histoire, 19e siècle.
    Pages: viii, 246 p.
    ISBN: 0-19-518040-2
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  • 12
    Unknown
    Oxford [England] ; New York : Oxford University Press
    American classical studies  
    Keywords: Greece, History, To 146 B.C. ; Grèce, Histoire, Jusqu'à 146 av. J.-C. ; Rome, Histoire. ; Rome, History. ; Civilisation ancienne. ; Civilization, Classical.
    Pages: xi, 151 p.
    ISBN: 0-19-518490-4
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  • 13
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Police, Europe, Histoire. ; Police, Europe, History. ; Police, Europe, History, 19th century. ; Police, France, Histoire. ; Police, France, History.
    Pages: x, 288 p.
    ISBN: 0-585-48633-6
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  • 14
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Angleterre, Mœurs et coutumes, 17e siècle. ; Angleterre, Mœurs et coutumes, 18e siècle. ; Angleterre, Mœurs et coutumes, 19e siècle. ; England, Social life and customs, 17th century. ; England, Social life and customs, 17th century. ; England, Social life and customs, 18th century. ; England, Social life and customs, 19th century. ; Anglais dans la littérature. ; Anglais, Histoire. ; English literature, History and criticism. ; Littérature anglaise, Histoire et critique. ; National characteristics, English, in literature. ; National characteristics, English, History.
    Notes: Energy -- Candour -- Decency -- Taciturnity -- Reserve -- Eccentricity -- Manners and character
    Pages: x, 389 p.
    ISBN: 0-585-48625-5
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  • 15
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Central America, Politics and government. ; Political violence, Central America, History. ; State-sponsored terrorism, Central America, History.
    Notes: Part 1 : 1821-1939. Historical dimensions of public violence in Latin America -- Binding hatreds : public violence, state, and nation in Central American history -- Guatemala : organizing for war -- El Salvador : a democracy of violence -- Honduras : caudillos in search of an army -- Nicaragua : a new army finds its caudillo -- Costa Rica : caudillos in search of a state -- Part 2 : 1940-1960. Transformations -- Defining collaboration : the United States and Central America -- Guatemala : "Showcase of Latin America" -- El Salvador : distrustful collaborator -- Honduras : remaking an "armed rabble" -- Nicaragua : "Ready to receive orders from Uncle Sam" -- Costa Rica : an army renamed -- Conclusions -- Statistical appendix -- Notes
    Pages: x, 336 p.
    ISBN: 0-19-518573-0
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  • 16
    Unknown
    New York : Oxford University Press
    Philosophy of mind series  
    Keywords: Consciousness. ; Dualism. ; Mind and body. ; Philosophy of mind.
    Pages: xvii, 414 p.
    ISBN: 0-585-35313-1
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  • 17
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Electronic books ; Vision disorders ; Visual perception
    Pages: ix, 135 p.
    ISBN: 1-423-70567-X
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  • 18
    Unknown
    New York : Oxford University Press
    Keywords: United States, History, Civil War, 1861-1865, Causes. ; United States, Race relations. ; United States, Social conditions, To 1865. ; Antislavery movements, United States, History, 19th century. ; Riots, United States, History, 19th century. ; Slavery, Government policy, United States. ; Violence, United States, History, 19th century.
    Pages: xx, 372 p.
    ISBN: 0-19-530397-0
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  • 19
    Unknown
    New York, N.Y : Oxford University Press
    Keywords: Dissenters, Religious, England, History, 19th century. ; Dissenters, Religious, England, History, 20th century. ; Dissidents (Religion), Angleterre, Histoire, 19e siècle. ; Dissidents (Religion), Angleterre, Histoire, 20e siècle. ; Theology, Study and teaching, England, History, 19th century. ; Theology, Study and teaching, England, History, 20th century. ; Théologie, Étude et enseignement, Angleterre, Histoire, 19e siècle. ; Théologie, Étude et enseignement, Angleterre, Histoire, 20e siècle.
    Pages: 248 p.
    ISBN: 0-585-16245-X
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  • 20
    Keywords: Great Britain, Civilization, 19th century. ; United States, Civilization, British influences. ; United States, Civilization, 20th century. ; Dickens, Charles,, 1812-1870, Appreciation, United States. ; Criticism, United States, History, 20th century. ; English literature, Appreciation, United States. ; English literature, 19th century, History and criticism, Theory, etc. ; Literature and science, Great Britain. ; Literature and science, United States. ; Postmodernism (Literature), United States. ; Romanticism, Great Britain.
    Pages: x, 270 p.
    ISBN: 0-19-518078-X
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  • 21
    Unknown
    New York : Oxford University Press
    Keywords: Bible., N.T., John. ; Bible., N.T., John, Commentaries.
    Pages: xiii, 625 p.
    Edition: Pbk. rpt. ed., 1997
    ISBN: 0-585-27829-6
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  • 22
    Unknown
    New York, N.Y : Oxford University Press
    Philosophy of mind series  
    Keywords: Ethics, Book reviews. ; Mind and body, Book reviews. ; Philosophy of mind, Book reviews.
    Pages: viii, 264 p.
    ISBN: 0-585-16169-0
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  • 23
    Unknown
    New York : Oxford University Press
    Keywords: Apologetics. ; Christianity, Philosophy. ; Faith and reason, Christianity.
    Pages: xx, 508 p.
    ISBN: 0-585-35267-4
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  • 24
    Keywords: Information society. ; Société informatisée.
    Pages: xxiii, 516 p.
    ISBN: 0-585-35755-2
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  • 25
    Unknown
    Oxford [England] ; New York, N.Y. [USA] : Oxford University Press
    Rutgers series on self and social identity  
    Keywords: Conflict management. ; Ethnic relations. ; Gestion des conflits. ; Group identity. ; Identité collective. ; Relations interethniques.
    Notes: Introduction : social identity and intergroup conflict / Lee Jussim, Richard D. Ashmore, and David Wilder / Ingroup identification and intergroup conflict : when does ingroup love become outgroup hate? / Marilynn B. Brewer -- Ethnic identity, national identity, and intergroup conflict : the significance of personal experiences / Thomas Hylland Eriksen -- The meaning of american national identity : patterns of ethnic conflict and consensus / Jack Citrin, Cara Wong, and Brian Duff -- Communal and national identity in a multiethnic state : a comparison of three perspectives / Jim Sidanius and John R. Petrocik -- Social and role identities and political violence : identity as a window on violence in northern ireland / Robert W. White -- Individual and group identities in genocide and mass killing / Ervin Staub -- The role of national identity in conflict resolution : experiences from Israeli-Palestinian problem-solving workshops / Herbert C. Kelman -- Conclusion : toward a social identity framework for intergroup conflict / Richard D. Ashmore, Lee Jussim, David Wilder, and Jessica Heppen
    Pages: xii, 270 p.
    ISBN: 0-19-530241-9
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  • 26
    Unknown
    New York : Oxford University Press
    Keywords: Ethnopsychology. ; Personality and culture.
    Notes: Culture and psychology at a crossroad : historical perspective and theoretical analysis / John Adamopoulos and Walter J. Lonner -- Individualism and collectivism : past, present, and future / Harry C. Tirandis -- Culture, science, and indigenous psychologies : an integrated analysis / Uichol Kim -- The evolution of cross-cultural research methods / Fons van de Vijver -- Culture, context, and development / Harry W. Gardiner -- Cognition across cultures / R.C. Mishra -- Everyday cognition : where culture, psychology, and education come together / Analúcia D. Schliemann and David W. Carraher -- Culture and moral development / Joan G. Miller -- Culture and emotion / David Matsumoto -- Gender and culture / Deborah L. Best and John E. Williams -- Culture and control orientations / Susumu Yamaguchi -- Culture and human inference : perspectives from three traditions / Kaiping Peng, Daniel R. Ames, and Eric D. Knowles -- Abnormal psychology and culture / Junko Tanaka-Matsumi -- Clinical psychology and culture / Jayne Lee and Stanley Sue -- Polishing the jade : a modest proposal for improving the study of social psychology across cultures / Michael Harris Bond and James T. Tedeschi -- Culture and social cognition : toward a social psychology of cultural dynamics / Yoshihisa Kashima -- Cross-cultural studies of social influence / Peter B. Smith -- Social justice from a cultural perspective / Kwok Leung and Walter G. Stephan -- The A, B, Cs of acculturation / Colleen Ward
    Pages: xvi, 458 p.
    ISBN: 0-19-530227-3
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  • 27
    Unknown
    Oxford ; New York : Oxford University Press
    Series in affective science  
    Keywords: Emotions (Philosophy)
    Notes: Emotions, physiology, and intentionality.Primitive emotions /John Deigh --Emotion : biological fact or social construction /Jenefer Robinson --Embodied emotions /Jesse Prinz --Emotion, appraisal, and cognition.Emotions : what I know, what I'd like to think I know, and what I'd like to think /Ronald de Sousa --Emotions, thoughts, and feelings : emotions as engagements with the world /Robert C. Solomon --Emotions and feelings.Emotion, feeling, and knowledge of the world /Peter Goldie --Subjectivity and emotion /Cheshire Calhoun --Emotions and rationality.Emotions, rationality, and mind/body /Patricia Greenspan --Some considerations about intellectual desire and emotions /Michael Stocker --Emotions, action, and freedom.Emotion and action /Jon Elster --Emotions and freedom /Jerome Neu --Emotion and value.Emotions as judgments of value and importance /Martha Nussbaum --Feelings that matter /Annette Baier --Perturbations of desire : emotions disarming morality in the "Great song" of The Mahabharata /Purushottama Bilimoria --On theories of emotion.Is emotion a natural kind? /Paul E. Griffiths --Emotion as a subtle mental mode /Aaron Ben-Zeev --Enough already with "Theories of emotions" /Amelie Oksenberg Rorty.
    Pages: x, 297 p.
    ISBN: 0-19-530334-2
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  • 28
    Unknown
    Oxford ; New York : Oxford University Press
    Oxford series in cognitive development  
    Keywords: Cognition in infants. ; Cognition, physiology, Infant. ; Concepts in infants. ; Thinking, physiology, Infant.
    Notes: How to build a baby : prologue -- Piaget's sensorimotor infant -- Kinds of representation : seeing and thinking -- Perceptual meaning analysis and image-schemas : the infant as interpreter -- Some image-schemas and their functions -- Some differences between percepts and concepts : the case of the basic level -- Some preverbal concepts -- Conceptual categories as induction machines -- Continuity in the conceptual system : acquisition, breakdown, and reorganization -- Recall of the past -- Language acquisition -- Consciousness and conclusions
    Pages: xiii, 359 p.
    ISBN: 0-19-530396-2
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  • 29
    Unknown
    New York : Oxford University Press
    Keywords: Color (Philosophy)
    Pages: xv, 228 p.
    ISBN: 0-585-36474-5
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  • 30
    Keywords: Denver (Colo.), History, 20th century. ; Middlebury (Vt. : Town), History, 20th century. ; Smyrna (Rutherford County, Tenn.), History, 20th century. ; Cities and towns, United States, Growth, History, 20th century, Case studies. ; Interstate Highway System, History, 20th century. ; Roads, Government policy, United States, History, 20th century. ; Transportation, Automotive, United States, History, 20th century.
    Notes: Highway federalism -- Denver meets the automobile -- The decentralization of post-World War II Denver -- Automobiles and a small town -- Bridges, bypasses, and boulevards -- AutoCity : Smyrna, Tennessee
    Pages: xiv, 297 p.
    ISBN: 0-19-530264-8
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  • 31
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: United States, History, 1783-1815. ; United States, History, Colonial period, ca. 1600-1775. ; United States, History, Revolution, 1775-1783.
    Notes: Preface -- 1754-1763 : Join, or die -- 1763-1766 : Loss of respect and affection -- 1766-1770 : To crush the spirit of the colonies -- 1770-1774 : Cause of Boston now is the cause of America -- 1775-1776 : To die freemen rather than to live slaves -- 1776-1777 : Leap into the dark -- 1778-1782 : This wilderness of darkness and dangers -- 1783-1787 : Present paroxysm of our affairs -- 1787-1789 : So much unanimity and good will -- 1790-1793 : Prosperous at home, respectable abroad -- 1793-1796 : Colossus to the Antirepublican party -- 1797-1799 : Game where principles are the stake -- 1799-1801 : Gigg is up -- 1801 : Age of revolution and reformation
    Pages: xv, 558 p.
    ISBN: 0-19-518418-1
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  • 32
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Amish Country (Pa.) ; Lancaster County (Pa.), Rural conditions. ; Rural development, Pennsylvania, Lancaster County.
    Notes: Introduction: a fertile soil -- Cultivating the garden : the invention of Lancaster County -- Pride and progress : education, literacy, and the little red schoolhouse -- Dutch country : the Amish and tourism -- Domain of abundance : food and farming -- Landscape of progress : urbanization and planning -- Preserving the garden : development and farm preservation -- Epilogue: the harvest -- Appendix : Farms and population of Lancaster County, 1900-2000
    Pages: x, 258 p.
    ISBN: 0-19-518029-1
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  • 33
    Keywords: Consolidation and merger of corporations. ; Human capital. ; Organizational effectiveness.
    Pages: xi, 193 p.
    ISBN: 0-19-518406-8
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  • 34
    Unknown
    New York : Oxford University Press
    Keywords: Philosophy and science. ; Thought experiments.
    Pages: xii, 318 p.
    Edition: [Pbk. reprint 1998]
    ISBN: 0-585-16074-0
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  • 35
    Unknown
    Oxford ; New York : Oxford University Press
    Very short introductions  
    Keywords: Postmodernism.
    Pages: 142 p.
    ISBN: 0-585-48631-X
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  • 36
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Industrial relations. ; Organizational behavior. ; Organizational sociology.
    Pages: x, 294 p.
    ISBN: 0-585-36603-9
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  • 37
    Unknown
    New York : Oxford University Press
    Keywords: Holocaust, Jewish (1939-1945), Influence. ; Holocaust, Jewish (1939-1945), Psychological aspects. ; Holocaust, Jewish (1939-1945), Social aspects. ; Social sciences, Philosophy.
    Notes: The psychology of bystanders, perpetrators, and heroic helpers / Ervin Staub -- What is a "social-psychological" account of perpetrator behavior? The person versus the situation in Goldhagen's Hitler's willing executioners / Leonard S. Newman -- Authoritarianism and the Holocaust: some cognitive and affective implications / Peter Suedfeld and Mark Schaller -- Perpetrator behavior as destructive obedience: an evaluation of Stanley Milgram's perspective, the most influential social-psychological approach to the Holocaust / Thomas Blass -- Sacrificial lambs dressed in wolves' clothing: envious prejudice, ideology, and the scapegoating of Jews / Peter Glick -- Group processes and the Holocaust / R. Scott Tindale ... [et al.] -- Examining the implications of cultural frames on social movements and group action / Daphna Oyserman and Armand Lauffer -- Population and predators: preconditions for the Holocaust from a control-theoretical perspective / Dieter Frey and Helmut Rez -- The zoomorphism of human collective violence / R.B. Zajonc -- The Holocaust and the four roots of evil / Roy F. Baumeister -- Instigators of genocide: examining Hitler from a social-psychological perspective / David R. Mandel -- Perpetrators with a clear conscience: lying self-deception and belief change / Ralph Erber -- Explaining the Holocaust: does social psychology exonerate the perpetrators? / Arthur G. Miller, Amy M. Buddie, and Jeffrey Kretschmar -- Epilogue: Social psychologists confront the Holocaust / Leonard S. Newman and Ralph Erber
    Pages: xi, 360 p.
    ISBN: 0-19-518618-4
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  • 38
    Unknown
    Oxford [England] ; New York : Oxford University Press
    Keywords: United States, Civilization, Philosophy. ; United States, Politics and government, Philosophy. ; National characteristics, American. ; Social values, United States.
    Notes: Introduction: A dream country -- Dream of the good life (I) : the Puritan enterprise -- Dream charter : The declaration of independence -- Dream of the good life (II) : upward mobility -- King of America : the dream of equality -- Detached houses : the dream of home ownership -- Dream of the good life (III) : the coast -- Conclusion: Extending the dream
    Pages: x, 214 p.
    ISBN: 0-19-530398-9
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  • 39
    Unknown
    New York : Oxford University Press
    Oxford readings in feminism  
    Keywords: Feminist theory. ; Women, History.
    Notes: Does a sex have a history? /Denise Riley --The dialects of Black womanhood /Bonnie Thornton Dill --Theorizing woman:Funu, Guojia, Jiating (Chinese women, Chinese state, Chinese family) /Tani Barlow --'Women's history' in transition: the European case /Natalie Zemon Davis --The traffic in women: notes on the 'political economy' of sex /Gayle Rubin --Gender: a useful category of historical analysis /Joan Wallach Scott --African-American women's history and the metalanguge of race /Evelyn Brooks Higginbotham --Carnal knowledge.
    Pages: ix, 611 p.
    ISBN: 0-585-15703-0
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  • 40
    Unknown
    New York : Oxford University Press
    Keywords: United States, Church history, Congresses. ; Christianity, United States, Congresses.
    Pages: ix, 502 p.
    ISBN: 0-585-30487-4
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  • 41
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: United States, Foreign relations, Philosophy. ; United States, Foreign relations, 2001- ; Globalization, Political aspects. ; National characteristics, American.
    Pages: xiv, 288 p.
    Edition: [Pbk. ed.]
    ISBN: 0-19-518433-5
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  • 42
    Unknown
    Oxford : Oxford University Press
    Oxford readings in feminism  
    Keywords: Feminist theory. ; Science, Philosophy. ; Science, Social aspects. ; Women in science.
    Pages: vii, 289 p.
    ISBN: 0-585-12065-X
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  • 43
    Keywords: English literature, 18th century. ; Erotic literature, English. ; Libertinism, Literary collections.
    Notes: British libertine literature before Fanny Hill (1749) -- 1: The school of Venus (1680) -- 2: The pleasure of a single life (1701), The fifteen comforts of Cuckoldom (1706), and the fifteen plagues of a maiden-head (1707) -- 3: Gonosologium Novum (1709) -- 4: Venus in the cloister (1725) -- 5: A dialogue between a married lady and a maid (1740) -- 6: A new description of merryland (1741) -- 7: The female husband (1746)
    Pages: xxxiii, 332 p.
    ISBN: 0-19-518577-3
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  • 44
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Capital social (Sociologie) ; Civil society. ; Democracy. ; Démocratie. ; Social capital (Sociology) ; Société civile.
    Notes: Introduction /Robert D. Putnam and Kristin A. Goss --Great Britain: the role of government and the distribution of social capital /Peter A. Hall --United States: bridging the privileged and the marginalized? /Robert Wuthnow --United States: from membership to advocacy /Theda Skocpol --France: old and new civic and social ties in France /Jean-Pierre Worms --Decline of social capital?: the German case /Claus Offe and Susanne Fuchs --From civil war to civil society: social capital in Spain from the 1930s to the 1990s /Victor Pérez-Díaz --Sweden: social capital in the social democratic state /Bo Rothstein --Australia: making the lucky country /Eva Cox --Broadening the basis of social capital in Japan /Takashi Inoguchi --Conclusion /Robert D. Putnam.
    Pages: 516 p.
    ISBN: 0-19-518460-2
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  • 45
    Unknown
    Oxford : Oxford University Press
    Keywords: Philosophie, Encyclopédies. ; Philosophy, Encyclopedias.
    Pages: xviii, 1009 p.
    ISBN: 0-585-18263-9
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  • 46
    Unknown
    New York, N.Y : Oxford University Press
    Keywords: Arab-Israeli conflict, Religious aspects. ; Arab-Israeli conflict, 1993-, Peace. ; Religion and politics, Middle East.
    Pages: viii, 269 p.
    ISBN: 0-19-518512-9
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  • 47
    Keywords: France, Race relations, History, 18th century. ; Blacks, Legal status, laws, etc., France, History, 18th century. ; Political culture, France, History, 18th century. ; Racism, France, History, 18th century.
    Pages: x, 210 p.
    ISBN: 0-585-32788-2
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  • 48
    Unknown
    New York : Oxford University Press
    Keywords: Etiquette, United States, History.
    Notes: Part I -- Hierarchy: manners in a vertical social order, 1620-1740.Manners for gentlemenManners over minorsManners maketh menPart II --Revolution: an opening of possibilities, 1740-1820.Middle class risingYouth risingWomen risingPart III -- Resolution: manners for democrats, 1820-1860.Manners for the middle classManners for adultsLadies first?
    Pages: x, 310 p.
    ISBN: 0-19-530339-3
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  • 49
    Unknown
    New York : Oxford University Press
    Keywords: Judaism, Dictionaries.
    Pages: xviii, 764 p.
    ISBN: 0-585-38345-6
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  • 50
    Unknown
    Oxford ; New York : Oxford University Press
    Studies in the history of sexuality  
    Keywords: Venice (Italy), Social conditions, To 1797 ; Electronic books ; Marriage, History, Italy, Venice ; Renaissance, Italy, Venice
    Pages: xi, 221 p.
    ISBN: 0-19-518018-6
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  • 51
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Great Britain, Relations, Ireland. ; Ireland, In literature. ; Ireland, Relations, Great Britain. ; Joyce, James,, 1882-1941., Ulysses. ; Joyce, James,, 1882-1941, Aesthetics. ; Joyce, James,, 1882-1941, Political and social views. ; Literature and history, Ireland, History, 20th century. ; Politics and literature, Ireland, History, 20th century.
    Pages: xii, 306 p.
    ISBN: 0-585-48623-9
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  • 52
    Unknown
    New York : Oxford University Press
    Oxford paperback reference  
    Keywords: Philosophie, Dictionnaires anglais. ; Philosophy, Dictionaries.
    Pages: ix, 418 p.
    ISBN: 0-585-11072-7
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  • 53
    Unknown
    New York : Oxford University Press
    Keywords: Wesley, Susanna Annesley,, 1669-1742. ; Wesley, Susanna Annesley,, 1670-1742. ; Anglicans, England, Biography.
    Pages: xiv, 504 p.
    ISBN: 0-585-24572-X
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  • 54
    Unknown
    New York : Oxford University Press
    Keywords: Crime in literature. ; Criminal liability in literature. ; Criminals in literature. ; English fiction, 19th century, History and criticism. ; Law and literature, History, 19th century. ; Legal stories, English, History and criticism. ; Responsibility in literature.
    Notes: Organizing crime : conduct and character in Oliver Twist : prologue to George Eliot's crimes -- "To fix our minds on that consequence" : minding consequences in Adam Bede and Felix Holt -- Middlemarch, Daniel Deronda, and the crime in mind -- James Fitzjames Stephen and the responsibilities of narrative -- Modern responsibilities
    Pages: viii, 275 p.
    ISBN: 0-19-518524-2
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  • 55
    Unknown
    Oxford : Oxford University Press
    Keywords: Ireland, Defenses, History, 20th century. ; Ireland, Foreign relations, 1922- ; Ireland, Military policy, History, 20th century. ; Ireland, Politics and government, 1922- ; National security, Ireland, History, 20th century.
    Pages: 382 p.
    ISBN: 0-585-48615-8
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  • 56
    Unknown
    New York : Oxford University Press
    Keywords: United States, Ethnic relations, History, 19th century. ; United States, Race relations, History, 19th century. ; American fiction, 19th century, History and criticism. ; Caricatures and cartoons, United States, History, 19th century. ; Ethnicity in literature. ; Race in literature. ; Realism in literature. ; Stereotype (Psychology) in literature.
    Notes: Introduction: the age of caricature, the age of realism -- William Dean Howells and the touch of exaggeration which typifies -- "I want a real coon": Twain and ethnic caricature -- A Jamesian art to be cultivated -- Edith Wharton's flamboyant copy -- The "curious realism" of Charles Chesnutt
    Pages: viii, 196 p.
    ISBN: 0-19-518578-1
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  • 57
    Unknown
    New York : Oxford University Press
    Keywords: Eliot, T. S., (Thomas Stearns),, 1888-1965, Views on war. ; Pound, Ezra,, 1885-1972, Views on war. ; Woolf, Virginia,, 1882-1941, Views on war. ; American poetry, 20th century, History and criticism. ; Americans, Great Britain, History, 20th century. ; Modernism (Literature), Great Britain. ; Modernism (Literature), United States. ; World War, 1914-1918, Great Britain, Literature and the war.
    Pages: xiii, 395 p.
    ISBN: 0-19-518055-0
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  • 58
    Unknown
    Oxford : Oxford University Press
    Keywords: Consciousness. ; Neuropsychology.
    Pages: 272 p.
    ISBN: 0-585-24486-3
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  • 59
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Mouvements sociaux. ; Social movements.
    Notes: pt. I. Introduction. Opportunities and identities: bridge-building in the study of social movements / David S. Meyer -- pt. II. States and policies. State repression and democracy protest in three southeast Asian countries / Vincent Boudreau -- Mobilization on the South African gold mines / T. Dunbar Moodie -- Multiple meditations: the state and the women's movements in India / Manisha Desai -- The contradictions of gay ethnicity: forging identity in Vermont / Mary Bernstein -- Creating social change: lessons from the civil rights movement / Kenneth T. Andrews -- pt. III. Organization and strategies. The "meso" in social movement research / Suzanne Staggenborg -- Strategizing and the sense of context: reflections on the first two weeks of the Liverpool docks lockout, September-October 1995 / Colin Barker and Michael Lavalette -- Factions and the continuity of political challengers / Mildred A. Schwartz -- More than one feminism: organizational structure and the construction of collective identity / Jo Reger -- The development of individual identity and consciousness among movements of the left and right / Rebecca E. Klatch -- pt. IV. Collective identities, discourse, and culture. Toward a more dialogic analysis of social movement culture / Marc W. Steinberg -- Materialist feminist discourse analysis and social movement research: mapping the changing context for "community control" / Nancy A. Naples -- From the "beloved community" to "family values": religious language, symbolic repertoires, and democratic culture / Rhys H. Williams -- External political change, collective identities, and participation in social movement organizations / Belinda Robnett -- pt. V. Conclusion. Meaning and structure in social movements / Nancy Whittier
    Pages: xvi, 366 p.
    ISBN: 0-19-530277-X
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  • 60
    facet.materialart.
    Unknown
    Oxford University Press
    Publication Date: 2024-03-23
    Description: "With so much media and political criticism of their shortcomings and failures, it is easy to overlook the fact that many governments work pretty well much of the time. Great Policy Successes turns the spotlight on instances of public policy that are remarkably successful. It develops a framework for identifying and assessing policy successes, paying attention not just to their programmatic outcomes but also to the quality of the processes by which policies are designed and delivered, the level of support and legitimacy they attain, and the extent to which successful performance endures over time. The bulk of the book is then devoted to 15 detailed case studies of striking policy successes from around the world, including Singapore's public health system, Copenhagen and Melbourne's rise from stilted backwaters to the highly liveable and dynamic urban centres they are today, Brazil's Bolsa Familia poverty relief scheme, the US's GI Bill, and Germany's breakthrough labour market reforms of the 2000s. Each case is set in context, its main actors are introduced, key events and decisions are described, the assessment framework is applied to gauge the nature and level of its success, key contributing factors to success are identified, and potential lessons and future challenges are identified. Purposefully avoiding the kind of heavy theorizing that characterizes many accounts of public policy processes, each case is written in an accessible and narrative style ideally suited for classroom use in conjunction with mainstream textbooks on public policy design, implementation, and evaluation.
    Keywords: public policy ; policy evaluation ; government ; governance ; social policy ; health policy ; economic policy ; thema EDItEUR::J Society and Social Sciences::JP Politics and government
    Language: English
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  • 61
    Publication Date: 2020-12-14
    Description: Explosive volcanic eruptions are defined as the violent ejection of gas and hot fragments from a vent in the Earth's crust. Knowledge of ejection velocity is crucial for understanding and modeling relevant physical processes of an eruption, and yet direct measurements are still a difficult task with largely variable results. Here we apply pioneering high-speed imaging to measure the ejection velocity of pyroclasts from Strombolian explosive eruptions with an unparalleled temporal resolution. Measured supersonic velocities, up to 405 m/s, are twice higher than previously reported for such eruptions. Individual Strombolian explosions include multiple, sub-second-lasting ejection pulses characterized by an exponential decay of velocity. When fitted with an empirical model from shock-tube experiments literature, this decay allows constraining the length of the pressurized gas pockets responsible for the ejection pulses. These results directly impact eruption modeling and related hazard assessment, as well as the interpretation of geophysical signals from monitoring networks.
    Description: INGV-DPC “V2” and “Paroxysm”, FIRB-MIUR “Research and Development of New Technologies for Protection and Defense of Territory from Natural Risks”, and FP7-PEOPLE-IEF-2008 – 235328 Projects
    Description: Published
    Description: L02301
    Description: 3V. Dinamiche e scenari eruttivi
    Description: JCR Journal
    Description: open
    Keywords: strombolian ; ejection velocity ; explosive eruption ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous ; 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring ; 04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques ; 05. General::05.02. Data dissemination::05.02.03. Volcanic eruptions
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 62
    Publication Date: 2021-02-10
    Description: Continuous gravity data collected near the summit eruptive vent at Kīlauea Volcano, Hawaiʻi, during 2011–2015 show a strong correlation with summit-area surface deformation and the level of the lava lake within the vent over periods of days to weeks, suggesting that changes in gravity reflect variations in volcanic activity. Joint analysis of gravity and lava level time series data indicates that over the entire time period studied, the average density of the lava within the upper tens to hundreds of meters of the summit eruptive vent remained low—approximately 1000–1500 kg/m^3. The ratio of gravity change (adjusted for Earth tides and instrumental drift) to lava level change measured over 15 day windows rose gradually over the course of 2011–2015, probably reflecting either (1) a small increase in the density of lava within the eruptive vent or (2) an increase in the volume of lava within the vent due to gradual vent enlargement. Superimposed on the overall time series were transient spikes of mass change associated with inflation and deflation of Kīlauea’s summit and coincident changes in lava level. The unexpectedly strong mass variations during these episodes suggest magma flux to and from the shallow magmatic system without commensurate deformation, perhaps indicating magma accumulation within, and withdrawal from, void space—a process that might not otherwise be apparent from lava level and deformation data alone. Continuous gravity data thus provide unique insights into magmatic processes, arguing for continued application of the method at other frequently active volcanoes.
    Description: Published
    Description: 5477–5492
    Description: 2V. Dinamiche di unrest e scenari pre-eruttivi
    Description: JCR Journal
    Description: restricted
    Keywords: Kīlauea Volcano; gravity changes; lava lake; volcano monitoring ; 04. Solid Earth::04.02. Exploration geophysics::04.02.02. Gravity methods ; 04. Solid Earth::04.03. Geodesy::04.03.05. Gravity variations ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 63
    Publication Date: 2021-02-10
    Description: A network of four borehole dilatometers has been installed on Etna in two successive phases (2010–2011 and 2014). The borehole dilatometers are installed in holes drilled at depths usually greater than 100 m, and they measure the volumetric strain of the surrounding rock with a nominal precision up to 10^-11 in a wide frequency range (10^-7–25 Hz). Here we describe the characteristics of the network and the results of the in situ calibrations obtained after the installations by different methods. We illustrate short-term strain changes recorded during several lava fountains erupted by Etna during 2011–2013, and we also show signal changes recorded at all four stations during the lava fountain on 28 December 2014. Analytical and numerical computations constrained the eruptions source depth and also its volume change that is related to the magma volume emitted. Finally, we show the potential of the signal in the medium term to reveal strain changes related to different phases of the volcanic activity.
    Description: Published
    Description: 4655–4669
    Description: 1IT. Reti di monitoraggio e Osservazioni
    Description: JCR Journal
    Description: restricted
    Keywords: Etna volcano ; borehole strainmeters ; strain ; eruptions and lava fountains ; 04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 64
    Publication Date: 2021-03-01
    Description: A new period of eruptive activity started at Turrialba volcano, Costa Rica, in 2010 after almost 150 years of quiescence. This activity has been characterized by sporadic explosions whose frequency clearly increased since October 2014. This study aimed to identify the mechanisms that triggered the resumption of this eruptive activity and characterize the evolution of the phenomena over the past 2 years. We integrate 3He/4He data available on fumarole gases collected in the summit area of Turrialba between 1999 and 2011 with new measurements made on samples collected between September 2014 and February 2016. The results of a petrological investigation of the products that erupted between October 2014 and May 2015 are also presented. We infer that the resumption of eruptive activity in 2010 was triggered by a replenishment of the plumbing system of Turrialba by a new batch of magma. This is supported by the increase in 3He/4He values observed since 2005 at the crater fumaroles and by comparable high values in September 2014, just before the onset of the new eruptive phase. The presence of a number of fresh and juvenile glassy shards in the erupted products increased between October 2014 and May 2015, suggesting the involvement of new magma with a composition similar to that erupted in 1864–1866. We conclude that the increase in 3He/4He at the summit fumaroles since October 2015 represents strong evidence of a new phase of magma replenishment, which implies that the level of activity remains high at the volcano.
    Description: Published
    Description: 3V. Proprietà dei magmi e dei prodotti vulcanici
    Description: 4V. Dinamica dei processi pre-eruttivi
    Description: 5V. Dinamica dei processi eruttivi e post-eruttivi
    Description: JCR Journal
    Keywords: Turrialba volcano ; eruptive activity ; 3He/4He ; fumarole gases ; glassy shards ; juvenile component ; 04. Solid Earth::04.04. Geology::04.04.12. Fluid Geochemistry ; 04. Solid Earth::04.07. Tectonophysics::04.07.08. Volcanic arcs ; 04. Solid Earth::04.08. Volcanology::04.08.01. Gases ; 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas ; 04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 65
    Publication Date: 2020-12-15
    Description: We report on a systematic record of SO2 flux emissions from individual vents of Etna volcano (Sicily), which we obtained using a permanent UV camera network. Observations were carried out in summer 2014, a period encompassing two eruptive episodes of the New South East Crater (NSEC) and a fissure-fed eruption in the upper Valle del Bove. We demonstrate that our vent-resolved SO2 flux time series allow capturing shifts in activity from one vent to another and contribute to our understanding of Etna’s shallowplumbingsystemstructure.We findthatthe fissureeruptioncontributed~50,000tofSO2 or~30%of the SO2 emitted by the volcano during the 5 July to 10 August eruptive interval. Activity from this eruptive ventgraduallyvanishedon10August,markingaswitchofdegassingtowardtheNSEC.Onsetofdegassingat the NSEC was a precursory to explosive paroxysmal activity on 11–15 August.
    Description: Published
    Description: 7511-7519
    Description: 3V. Dinamiche e scenari eruttivi
    Description: JCR Journal
    Description: restricted
    Keywords: Records of SO2 flux emissions from Etna’sindividualventsallowcapturing shifts in volcanic activity ; Vent-resolved SO2 flux time series provide constraints on geometry of the shallow plumbing system ; Vent-resolved SO2 flux time series demonstrate SO2 flux increase precursory to paroxysmal (lava fountaining) activity ; 04. Solid Earth::04.08. Volcanology::04.08.01. Gases
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 66
    Publication Date: 2021-02-10
    Description: Annual January/July midlatitude daytime asymmetry in monthly median NmF2 and model thermospheric parameters has been considered during deep solar minimum, (2008–2009), when solar and geomagnetic activities were at the lowest level, to analyze the background effect due to the Sun-Earth minimum distance, perihelion, in the vicinity of the December solstice. Averaged over 10 midlatitude station pairs, the NmF2 asymmetry was found to be ≈1.23, while the average asymmetry for the annual component in NmF2 variations is ≈1.17. Annual asymmetry in monthly median neutral composition and temperature predicted by Mass Spectrometer Incoherent Scatter 86 (MSIS86) and MSISE00 thermospheric models along with the 7% increase in solar EUV flux in the vicinity of the December solstice is sufficient to explain the observed annual asymmetry in NmF2. A hierarchy of aeronomic parameters responsible for the observed asymmetry in NmF2 has been established: the main contributor is atomic oxygen—about 50% of the total effect, [N2] contributes around 35% strongly compensating the [O] contribution, and solar EUV and Tn provide 〈10% each. The zonal mean annual asymmetry in MSIS86 atomic oxygen column density was shown to be 1.18 at low and middle latitudes, and this is close to the estimated asymmetry for the annual component in NmF2 variations. The earlier proposed mechanism of the December anomaly is considered as a plausible one to explain the 1.18 January/July asymmetry in the atomic oxygen variations and consequently the NmF2 annual daytime asymmetry at middle latitudes under the deep solar minimum.
    Description: Published
    Description: 1341-1354
    Description: 2A. Fisica dell'alta atmosfera
    Description: JCR Journal
    Description: restricted
    Keywords: december anomaly ; 01. Atmosphere::01.02. Ionosphere::01.02.01. Ion chemistry and composition
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 67
    Publication Date: 2021-06-25
    Description: The geological record at rifts and margins worldwide often reveals considerable along-strike variations in volumes of extruded and intruded igneous rocks. These variations may be the result of asthenospheric heterogeneity, variations in rate, and timing of extension; alternatively, preexisting plate architecture and/or the evolving kinematics of extension during breakup may exert first-order control on magmatism. The Main Ethiopian Rift (MER) in East Africa provides an excellent opportunity to address this dichotomy: it exposes, along strike, several sectors of asynchronous rift development from continental rifting in the south to incipient oceanic spreading in the north. Here we perform studies of volcanic cone density and rift obliquity along strike in the MER. By synthesizing these new data in light of existing geophysical, geochemical, and petrological constraints on magma generation and emplacement, we are able to discriminate between tectonic and mantle geodynamic controls on the geological record of a newly forming magmatic rifted margin. The timing of rift sector development, the three-dimensional focusing of melt, and the ponding of plume material where the rift dramatically narrows each influence igneous intrusion and volcanism along the MER. However, rifting obliquity plays an important role in localizing intrusion into the crust beneath en echelon volcanic segments. Along-strike variations in volumes and types of igneous rocks found at rifted margins thus likely carry information about the development of strain during rifting, as well as the physical state of the convecting mantle at the time of breakup.
    Description: Published
    Description: 467-477
    Description: 1T. Geodinamica e interno della Terra
    Description: JCR Journal
    Description: restricted
    Keywords: Variationsinmeltproductioncausedby asynchronous rift sector development • Where the rift narrows, ponding of plume material may enhance melting • Three-dimensional migration of melt along the LAB focuses magma supply ; 04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics
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  • 68
    Publication Date: 2021-01-04
    Description: We present a neotectonic model of ongoing lithosphere deformation and a corresponding estimate of long-term shallow seismicity across the Africa-Eurasia plate boundary, including the eastern Atlantic, Mediterranean region, and continental Europe. GPS and stress data are absent or inadequate for the part of the study area covered by water. Thus, we opt for a dynamic model based on the stress-equilibrium equation; this approach allows us to estimate the long-term behavior of the lithosphere (given certain assumptions about its structure and physics) for both land and sea areas. We first update the existing plate model by adding five quasi-rigid plates (the Ionian Sea, Adria, Northern Greece, Central Greece, and Marmara) to constrain the deformation pattern of the study area. We use the most recent datasets to estimate the lithospheric structure. The models are evaluated in comparison with updated datasets of geodetic velocities and the most compressive horizontal principal stress azimuths. We find that the side and basal strengths drive the present-day motion of the Adria and Aegean Sea plates, whereas lithostatic pressure plays a key role in driving Anatolia. These findings provide new insights into the neotectonics of the greater Mediterranean region. Finally, the preferred model is used to estimate long-term shallow seismicity, which we retrospectively test against historical seismicity. As an alternative to reliance on incomplete geologic data or historical seismic catalogs, these neotectonic models help to forecast long-term seismicity, although requiring additional tuning before seismicity rates are used for seismic hazard purposes.
    Description: Published
    Description: 5311–5342
    Description: 1T. Geodinamica e interno della Terra
    Description: 2T. Tettonica attiva
    Description: 3T. Pericolosità sismica e contributo alla definizione del rischio
    Description: JCR Journal
    Description: open
    Keywords: Tectonics ; Earthquake rates ; 04. Solid Earth::04.02. Exploration geophysics::04.02.03. Heat flow ; 04. Solid Earth::04.03. Geodesy::04.03.01. Crustal deformations ; 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology ; 04. Solid Earth::04.04. Geology::04.04.06. Rheology, friction, and structure of fault zones ; 04. Solid Earth::04.06. Seismology::04.06.01. Earthquake faults: properties and evolution ; 04. Solid Earth::04.06. Seismology::04.06.02. Earthquake interactions and probability ; 04. Solid Earth::04.07. Tectonophysics::04.07.01. Continents ; 04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics ; 04. Solid Earth::04.07. Tectonophysics::04.07.04. Plate boundaries, motion, and tectonics ; 04. Solid Earth::04.07. Tectonophysics::04.07.05. Stress ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
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  • 69
    Publication Date: 2021-06-25
    Description: Airborne and ground-based differential optical absorption spectroscopy observations have been carried out at the volcano Nyiragongo (Democratic Republic of Congo) tomeasure SO2 and bromine monoxide (BrO) in the plume inMarch 2004 and June 2007, respectively. Additionally filter pack andmulticomponent gas analyzer system (Multi-GAS)measurements were carried out in June 2007. Ourmeasurements provide valuable information on the chemical composition of the volcanic plume emitted fromthe lava lake of Nyiragongo. The main interest of this study has been to investigate for the first time the bromine emission flux of Nyiragongo (a rift volcano) and the BrO formation in its volcanic plume. Measurement data and results from a numerical model of the evolution of BrO in Nyiragongo volcanic plume are compared with earlier studies of the volcanic plume of Etna (Italy). Even though the bromine flux from Nyiragongo (2.6 t/d) is slightly greater than that from Etna (1.9 t/d), the BrO/SO2 ratio (maximum 7 × 10 5) is smaller than in the plume of Etna (maximum 2.1 × 10 4). A one-dimensional photochemical model to investigate halogen chemistry in the volcanic plumes of Etna and Nyiragongo was initialized using data from Multi-GAS and filter pack measurements. Model runs showed that the differences in the composition of volcanic volatiles led to a smaller fraction of total bromine being present as BrO in the Nyiragongo plume and to a smaller BrO/SO2 ratio.
    Description: Published
    Description: 277-291
    Description: 4V. Vulcani e ambiente
    Description: JCR Journal
    Description: restricted
    Keywords: Intraplate volcano Nyiragongo is bromine rich although chlorine poor ; BrO/Br in volcanic plumes depends on initial plume composition ; Determination of Nyiragongo chlorine, bromine, sulfur emission strength ; 04. Solid Earth::04.08. Volcanology::04.08.01. Gases
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 70
    Publication Date: 2021-06-21
    Description: We present the analysis of rotational and translational ground motions from earthquakes recorded during October–November 2016, in association with the Central Italy seismic sequence. We use co-located measurements of the vertical ground rotation rate from a large ring laser gyroscope and the three components of ground velocity from a broad-band seismometer. Both instruments are positioned in a deep underground environment, within the Gran Sasso National Laboratories of the Istituto Nazionale di Fisica Nucleare. We collected dozens of events spanning the 3.5–5.9 magnitude range and epicentral distances between 30 and 70 km. This data set constitutes an unprecedented observation of the vertical rotational motions associated with an intense seismic sequence at local distance. Under the plane-wave approximation we process the data set in order to get an experimental estimation of the events backazimuth. Peak values of rotation rate (PRR) and horizontal acceleration (PGA) are markedly correlated, according to a scaling constant which is consistent with previous measurements from different earthquake sequences. We used a prediction model in use for Italy to calculate the expected PGA at the recording site, obtaining consequently predictions for PRR. Within the modelling uncertainties, predicted rotations are consistent with the observed ones, suggesting the possibility of establishing specific attenuation models for ground rotations, like the scaling of peak velocity and peak acceleration in empirical ground-motion prediction relationships. In a second step, after identifying the direction of the incoming wavefield, we extract phase-velocity data using the spectral ratio of the translational and rotational components. This analysis is performed over time windows associated with the P-coda, S-coda and Lg phase. Results are consistent with independent estimates of shear wave velocities in the shallow crust of the Central Apennines
    Description: Published
    Description: 705-715
    Description: 4T. Sismicità dell'Italia
    Description: JCR Journal
    Keywords: Rotational seismology ; Surface waves and free oscillations ; Wave propagation
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 71
    Publication Date: 2021-07-13
    Description: Mount Etna volcano is subject to transient magmatic intrusions and flank movement. The east flank of the edifice, in particular, is moving eastward and is dissected by the Timpe Fault System. The relationship of this eastward motion with intrusions and tectonic fault motion, however, remains poorly constrained. Here we explore this relationship by using analogue experiments that are designed to simulate magmatic rift intrusion, flank movement, and fault activity before, during, and after a magmatic intrusion episode. Using particle image velocimetry allows for a precise temporal and spatial analysis of the development and activity of fault systems. The results show that the occurrence of rift intrusion episodes has a direct effect on fault activity. In such a situation, fault activitymay occur or may be hindered, depending on the interplay of fault displacement and flank acceleration in response to dike intrusion. Our results demonstrate that a complex interplaymay exist between an active tectonic fault system and magmatically induced flank instability. Episodes of magmatic intrusion change the intensity pattern of horizontal flank displacements andmay hinder or activate associated faults. We further compare our results with the GPS data of the Mount Etna 2001 eruption and intrusion. We find that syneruptive displacement rates at the Timpe Fault System have differed from the preeruptive or posteruptive periods, which shows a good agreement of both the experimental and the GPS data. Therefore, understanding the flank instability and flank stability at Mount Etna requires consideration of both tectonic and magmatic forcing.
    Description: Published
    Description: 5356-5368
    Description: 1V. Storia e struttura dei sistemi vulcanici
    Description: JCR Journal
    Description: restricted
    Keywords: analogue models ; strain ; stress ; eruption ; flank dynamics ; GPS ; faults ; Etna ; 04. Solid Earth::04.03. Geodesy::04.03.08. Theory and Models
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 72
    Publication Date: 2020-12-15
    Description: We have analyzed a focal mechanism data set for Mount Vesuvius, consisting of 197 focal mechanisms of events recorded from 1999 to 2012. Using different approaches and a comparison between observations and numerical models, we have determined the spatial variations in the stress field beneath the volcano. The main results highlight the presence of two seismogenic volumes characterized by markedly different stress patterns. The two volumes are separated by a layer where the seismic strain release shows a significant decrease. Previous studies postulated the existence, at about the same depth, of a ductile layer allowing the spreading of the Mount Vesuvius edifice. We interpreted the difference in the stress pattern within the two volumes as the effect of a mechanical decoupling caused by the aforementioned ductile layer. The stress pattern in the top volume is dominated by a reverse faulting style, which agrees with the hypothesis of a seismicity driven by the spreading process. This agrees also with the persistent character of the seismicity located within this volume. Conversely, the stress field determined for the deep volume is consistent with a background regional field locally perturbed by the effects of the topography and of heterogeneities in the volcanic structure. Since the seismicity of the deep volume shows an intermittent behavior and has shown to be linked to geochemical variations in the fumaroles of the volcano, we hypothesize that it results from the effect of fluid injection episodes, possibly of magmatic origin, perturbing the pore pressure within the hydrothermal system.
    Description: Published
    Description: 1181–1199
    Description: 4T. Fisica dei terremoti e scenari cosismici
    Description: 2V. Dinamiche di unrest e scenari pre-eruttivi
    Description: 5V. Sorveglianza vulcanica ed emergenze
    Description: JCR Journal
    Description: restricted
    Keywords: vesuvius ; stress inversion ; focal mechanisms ; 04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology ; 04. Solid Earth::04.06. Seismology::04.06.10. Instruments and techniques ; 04. Solid Earth::04.07. Tectonophysics::04.07.05. Stress ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 73
    Publication Date: 2020-12-15
    Description: In thismanuscript we present a new interpretation of the seismic series that accompanied eruptive activity off the coast of El Hierro, Canary Islands, during 2011–2013. We estimated temporal variations of the Gutenberg-Richter b value throughout the period of analysis, and performed high-precision relocations of the preeruptive and syneruptive seismicity using a realistic 3-D velocity model. Our results suggest that eruptive activity and the accompanying seismicity were caused by repeated injections of magma from the mantle into the lower crust. These magma pulses occurred within a small and well-defined volume resulting in the emplacement of fresh magma along the crust-mantle boundary underneath El Hierro. We analyzed the distribution of earthquake hypocenters in time and space in order to assess seismic diffusivity in the lower crust. Our results suggest that very high earthquake rates underneath El Hierro represent the response of a stable lower crust to stress perturbations with pulsatory character, linked to the injection of magma from the mantle. Magma input from depth caused large stress perturbations to propagate into the lower crust generating energetic seismic swarms. The absence of any preferential alignment in the spatial pattern of seismicity reinforces our hypothesis that stress perturbation and related seismicity, had diffusive character. We conclude that the temporal and spatial evolution of seismicity was neither tracking the path of magma migration nor it defines the boundaries of magma storage volumes such as a midcrustal sill. Our conceptual model considers pulsatorymagma injection fromthe uppermantle and its propagation along the Moho.We suggest, within this framework, that the spatial and temporal distributions of earthquake hypocenters reflect hydraulic fracturing processes associated with stress propagation due to magma movement.
    Description: Published
    Description: 7749–7770
    Description: 1T. Geodinamica e interno della Terra
    Description: JCR Journal
    Description: restricted
    Keywords: b value, relocation, Hydraulic fracturing, Magma influx ; 05. General::05.02. Data dissemination::05.02.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 74
    Publication Date: 2021-02-10
    Description: Moore (1964) in a letter published in Nature reported disturbances in geomagnetic field data prior to the 27 March 1964 Alaska earthquake. After the publication of this report, many papers have shown magnetic changes preceding earthquakes. However, a causal relationship between preearthquake magnetic changes and impending earthquakes has never been demonstrated. As a consequence, after 50 years, magnetic disturbances in the geomagnetic field are still candidate precursory phenomena. Some researchers consider the investigation of ultra low frequency (ULF: 0.001–10 Hz) magnetic data the correct approach for identifying precursory signatures of earthquakes. Other researchers, instead, have recently reviewed many published ULF magnetic changes that preceded earthquakes and have shown that these are not actual precursors. The recent studies by Currie and Waters (2014) and Han et al. (2014) aim to provide relevant new findings in the search for ULF magnetic precursory signals. However, in order to contribute to science, alleged precursors must be shown to be valid and reproducible by objective testing. Here we will briefly discuss the state of the art in the search for ULF magnetic precursors, paying special attention to the recent findings of Currie and Waters (2014) and Han et al. (2014). We do not see in these two reports significant evidence that may support the observation of precursory signatures of earthquakes in ULF magnetic records.
    Description: Published
    Description: 10289–10304
    Description: 1A. Geomagnetismo e Paleomagnetismo
    Description: JCR Journal
    Description: restricted
    Keywords: Geomagnetic field ; Magnetic anomalies ; Earthquake precursors ; 01. Atmosphere::01.03. Magnetosphere::01.03.03. Magnetospheric physics ; 04. Solid Earth::04.05. Geomagnetism::04.05.04. Magnetic anomalies
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 75
    Publication Date: 2021-04-07
    Description: Integrating geodetic, seismic, and petrological data for a recent eruptive episode at Mount Etna has enabled us to define the history of magma storage and transfer within the multilevel structure of the volcano, providing spatial and temporal constraints for magma movements before the eruption. Geodetic data related to the July–August 2014 activity provide evidence of a magma reservoir at ~4 km below sea level. This reservoir pressurized from late March 2014 and fed magmas that were then erupted from vents on the lower eastern flank of North-East Crater (NEC) and at New South-East Crater (NSEC) summit crater during the July eruptive activity. Magma drainage caused its depressurization since mid-July. Textural and microanalytical data obtained from plagioclase crystals indicate similar disequilibrium textures and compositions at the cores in lavas erupted at the base of NEC and NSEC, suggesting comparable deep histories of evolution and ascent. Conversely, the compositional differences observed at the crystal rims have been associated to distinct degassing styles during storage in a shallow magma reservoir. Seismic data have constrained depth for a shallow part of the plumbing system at 1–2 km above sea level. Timescales of magma storage and transfer have also been calculated through diffusion modeling of zoning in olivine crystals of the two systems. Our data reveal a common deep history of magmas from the two systems, which is consistent with a recharging phase by more mafic magma between late March and early June 2014. Later, the magma continued its crystallization under distinct chemical and physical conditions at shallower levels.
    Description: The petrological part of this study was supported by the FIR 2014 research grant to Marco Viccaro from the University of Catania (Italy), grant number 2F119B, title of the project “Dynamics of evolution, ascent and emplacement of basic magmas: case-studies from eruptive manifestations of Eastern Sicily”.
    Description: Published
    Description: 5659–5678
    Description: 2V. Dinamiche di unrest e scenari pre-eruttivi
    Description: 3V. Dinamiche e scenari eruttivi
    Description: JCR Journal
    Description: restricted
    Keywords: Petrology ; eruption ; GPS ; volcano seismology ; Etna ; 04. Solid Earth::04.03. Geodesy::04.03.01. Crustal deformations ; 04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy ; 04. Solid Earth::04.04. Geology::04.04.07. Rock geochemistry ; 04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 76
    Publication Date: 2021-06-16
    Description: Earthquakes occurring close to hydrocarbon fields under production are often under critical view of being induced or triggered. However, clear and testable rules to discriminate the different events have rarely been developed and tested. The unresolved scientific problem may lead to lengthy public disputes with unpredictable impact on the local acceptance of the exploitation and field operations. We propose a quantitative approach to discriminate induced, triggered and natural earthquakes, which is based on testable input parameters. Maxima of occurrence probabilities are compared for the cases under question, and a single probability of being triggered or induced is reported. The uncertainties of earthquake location and other input parameters are considered in terms of the integration over probability density functions (pdf). The probability that events have been human-triggered/induced is derived from the modeling of Coulomb stress changes and a rate and state dependent seismicity model. In our case a 3D boundary element method has been adapted for the nuclei of strain approach to estimate the stress changes outside the reservoir, which are related to pore pressure changes in the field formation. The predicted rate of natural earthquakes is either derived from the background seismicity or, in case of rare events, from an estimate of the tectonic stress rate. Instrumentally derived, seismological information on the event location, source mechanism and the size of the rupture plane is of advantage for the method. If the rupture plane has been estimated, the discrimination between induced or only triggered events is theoretically possible if probability functions are convolved with a rupture fault filter. We apply the approach to three recent main-shock events: (1) the Mw 4.3 Ekofisk 2001, North Sea earthquake close to the Ekofisk oil field, the 2004 Mw 4.4 Rotenburg, Northern Germany earthquake in the vicinity of the Söhlingen gas field, and the Mw 6.1 Emilia 2012, Northern Italy earthquake in the vicinity of a hydrocarbon reservoir. The three test cases cover the complete range of possible causes: clearly “human-induced”, “not even human-triggered” and a third case in-between both extremes.
    Description: Published
    Description: 2491–2509
    Description: 6T. Sismicità indotta e caratterizzazione sismica dei sistemi naturali
    Description: JCR Journal
    Description: restricted
    Keywords: Induced seismicity ; probabilistic discrimination ; hydrocarbon field ; triggered earthquake ; seismic hazard ; earthquake ; 04. Solid Earth::04.06. Seismology::04.06.02. Earthquake interactions and probability
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 77
    Publication Date: 2021-06-16
    Description: This study performed the first assessment of the volcanic gas output from the Central Volcanic Zone (CVZ) of northern Chile. We present the fluxes and compositions of volcanic gases (H2O, CO2, H2, HCl, HF, and HBr) from five of the most actively degassing volcanoes in this region—Láscar, Lastarria, Putana, Ollagüe, and San Pedro—obtained during field campaigns in 2012 and 2013. The inferred gas plume compositions for Láscar and Lastarria (CO2/Stot = 0.9–2.2; Stot/HCl = 1.4–3.4) are similar to those obtained in the Southern Volcanic Zone of Chile, suggesting uniform magmatic gas fingerprint throughout the Chilean arc. Combining these compositions with our own UV spectroscopy measurements of the SO2 output (summing to ~1800 t d 1 for the CVZ), we calculate a cumulative CO2 output of 1743–1988 t d 1 and a total volatiles output of 〉20,200 t d 1. 1.
    Description: Published
    Description: 4961-4969
    Description: 5V. Sorveglianza vulcanica ed emergenze
    Description: JCR Journal
    Description: restricted
    Keywords: Gas output from the Central Volcanic Zone ; 04. Solid Earth::04.08. Volcanology::04.08.01. Gases
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 78
    Publication Date: 2021-06-25
    Description: Beside anthropogenic influences, mercury in the environment can also be of natural origin. Among geologic sources, volcanic activity has been of main interest so far. Modern estimations of global natural emissions are between 2000 and 5200 tonnes per year. However, these estimates are very uncertain, thus more detailed and systematic research on natural sources of mercury is necessary. Tectonic activity is connected to certain phenomena such as degassing of Hg and other gases from active faults, geothermal activity, volcanoes, etc., especially on tectonic plate margins. Elemental mercury concentrations in air, soil gases and fluxes, as well as its speciation, in connection to tectonic activity, were studied in different environments such are karst cave (Postojna Cave), active volcano areas (Mt. Etna, Italy), and active tectonic areas in the Mediterranean Basin on Africa-Adriatic tectonic plate margin. Postojna Cave is characterized by elevated Hg (up to 150 ng m-3) air concentrations at certain areas in vicinity of active faults; however the concentrations showed also strong seasonal variations. Mt. Etna on Sicily is the largest and most active Mediterranean volcano. Concentrations of mercury in air in the vicinity of the volcano are relatively high (between 4 and 30 ng m-3) and rise towards the summit crater (65 to 130 ng m-3). Concentrations in sulphatare and fumaroles gases on the summit of the volcano can reach very high values (even up to 60 μg m-3). The Mediterranean Basin is characterized by strong tectonic activity as a consequence of subduction of African plate under the Eurasian plate. A possible source of DGM (dissolved gaseous mercury in sea water) in deeper and bottom waters could be intensive tectonic activity of the seafloor, since higher concentrations and portions of DGM were found near the bottom at locations with strong tectonic activity (Alboran Sea, Strait of Sicily, Tyrrhenian Sea, Ionian Sea). Distribution of different mercury species in sediment and water of the Mediterranean Sea showed that the main source of mercury is geotectonic activity and its accompanying phenomena.
    Description: Published
    Description: San Francisco
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: restricted
    Keywords: Mercury ; 04. Solid Earth::04.04. Geology::04.04.12. Fluid Geochemistry
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 79
    Publication Date: 2021-06-25
    Description: The transition from mechanical thinning toward focused magmatic intrusion during continental rifting is poorly constrained; the tectonically active Main Ethiopian Rift (MER) provides an ideal study locale to address this issue. The presence of linear magmatic-tectonic belts in the relatively immature central MER may indicate that the transition from mechanical to magmatic rifting is more spatially distributed and temporally protracted than has previously been assumed. Here we examine lava geochemistry and vent distribution of a Pliocene-Quaternary linear magmatic chain along the western margin of the central MER—the Akaki Magmatic Zone. Our results show limited variability in parental magma that evolve in a complex polybaric fractionation system that has not changed significantly over the past 3 Ma. Our results suggest the following: (1) channeling of plume material and the localization of shear- or topography-induced porosity modulates melt intrusion into the continental lithosphere. (2) Pre-existing lithospheric structures may act as catalysts for intrusion of magmas into the lithospheric mantle. (3) The midcrustal to upper crustal strain regime dictates the surface orientation of volcanic vents. Therefore, although linear magmatic belts like those in the central MER may young progressively toward the rift axis and superficially resemble oceanic style magmatism, they actually represent prebreakup magmatism on continental crust. The oldest linear magmatic belts observed seismically and magnetically at the edge of the ocean basins thus may not, as is often assumed, actually mark the onset of seafloor spreading.
    Description: Published
    Description: 875–897
    Description: 1T. Geodinamica e interno della Terra
    Description: JCR Journal
    Description: restricted
    Keywords: Precambrian lineaments control off-axis melt • Magmatic extension in Ethiopian rift is not ocean like • Magmatic belts at basins margins may not be seafloor spreading ; 04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 80
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    Unknown
    American Geophysical Union
    In:  EPIC3Journal of Geophysical research: Ocean, American Geophysical Union, 122, pp. 1-18
    Publication Date: 2017-11-12
    Description: We collected Arctic Ocean water column samples for methane (CH4) and nitrous oxide (N2O) analysis on three separate cruises in the summer and fall of 2015, covering a ~10,000 km transect from the Bering Sea to Baffin Bay. This provided a three-dimensional view of CH4 and N2O distributions across contrasting hydrographic environments, from the oligotrophic waters of the deep Canada Basin and Baffin Bay, to the productive shelves of the Bering and Chukchi Seas. Percent saturation relative to atmospheric equilibrium ranged from 30-800% for CH4 and 75-145% for N2O, with the highest concentrations of both gases occurring in the northern Chukchi Sea. Nitrogen cycling in the shelf sediments of the Bering and Chukchi Seas likely constituted the major source of N2O to the water column, and the resulting high N2O concentrations were transported across the Arctic Ocean in eastward-flowing water masses. Methane concentrations were more spatially heterogeneous, reflecting a variety of localized inputs, including likely sources from sedimentary methanogenesis and sea ice processes. Unlike N2O, CH4 was rapidly consumed through microbial oxidation in the water column, as shown by the 13C enrichment of CH4 with decreasing concentrations. For both CH4 and N2O, sea-air fluxes were close to neutral, indicating that our sampling region was neither a major source nor sink of these gases. Our results provide insight into the factors controlling the distribution of CH4 and N2O in the North American Arctic Ocean, and an important baseline data set against which future changes can be assessed.
    Repository Name: EPIC Alfred Wegener Institut
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  • 81
    Publication Date: 2018-01-11
    Repository Name: EPIC Alfred Wegener Institut
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  • 82
    Publication Date: 2018-07-15
    Description: Understanding the enigmatic intraplate volcanism in the Tristan da Cunha region requires knowledge of the temperature of the lithosphere and asthenosphere beneath it. We measured phasevelocity curves of Rayleigh waves using cross-correlation of teleseismic seismograms from an array of ocean-bottom seismometers around Tristan, constrained a region-average, shear-velocity structure, and inferred the temperature of the lithosphere and asthenosphere beneath the hotspot. The ocean-bottom data set presented some challenges, which required data-processing and measurement approaches different from those tuned for land-based arrays of stations. Having derived a robust, phase-velocity curve for the Tristan area, we inverted it for a shear wave velocity profile using a probabilistic (Markov chain Monte Carlo) approach. The model shows a pronounced low-velocity anomaly from 70 to at least 120 km depth. VS in the low velocity zone is 4.1–4.2 km/s, not as low as reported for Hawaii (�4.0 km/s), which probably indicates a less pronounced thermal anomaly and, possibly, less partial melting. Petrological modeling shows that the seismic and bathymetry data are consistent with a moderately hot mantle (mantle potential temperature of 1,410–1,4308C, an excess of about 50–1208C compared to the global average) and a melt fraction smaller than 1%. Both purely seismic inversions and petrological modeling indicate a lithospheric thickness of 65–70 km, consistent with recent estimates from receiver functions. The presence of warmer-than-average asthenosphere beneath Tristan is consistent with a hot upwelling (plume) from the deep mantle. However, the excess temperature we determine is smaller than that reported for some other major hotspots, in particular Hawaii.
    Repository Name: EPIC Alfred Wegener Institut
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  • 83
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    Unknown
    American Chemical Society
    In:  EPIC3Environmental Science & Technology, American Chemical Society, 52(22), pp. 13279-13288
    Publication Date: 2019-03-13
    Repository Name: EPIC Alfred Wegener Institut
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  • 84
    facet.materialart.
    Unknown
    American Geophysical Union
    In:  EPIC3AGU, Fall Meeting 2017, Poster PP51B-1067, New Orleans, 2017-12-15-2017-12-15New Orleans, USA, American Geophysical Union
    Publication Date: 2019-05-12
    Description: Establishing an accurate chronostratigraphy is essential in reconstructing paleoenvironmental changes in the Arctic Ocean. This requisition, however, has been impeded by the lack of biogenic remnants such as calcareous and siliceous microfossils, as well as alteration of paleomagnetic properties by post-depositional processes. Consequently, foundation of chronostratigraphy in the Arctic Ocean has been mostly relying on stratigraphic correlations. This study examines lithological features and physical properties of sediments of gravity core ARA03B-41GC02 collected in the Makarov Basin and correlates with previously studied cores from the western Arctic Ocean, in order to establish an age model that could eventually facilitate a precise reconstruction of paleoenvironmental changes in the western Arctic Ocean. Age control in the uppermost part was determined by AMS 14C dating of planktonic foraminifera and inter-core correlation was conducted in the upper ca. 3.8 m of the core which corresponded to MIS 15. Age constraints older than MIS 15 were treated using cyclostratigraphic model based on Mn-δ18O stack comparison, assuming that brown and high Mn concentration layers represent generally interglacial or interstadial periods. Based on our result, the core bottom corresponds to MIS 28 with an average sedimentation rate of ca. 0.5 cm/ky. The first appearance of detrital carbonate, planktonic foraminifera, and benthic foraminifera occurred during MIS 16, 11, and 7, respectively. MIS 16 is known as the coldest glacial period when δ18O of the LR04 stack first becomes heavier than 5‰; the occurrence of detrital carbonate likely transported from the Canadian Arctic indicates the initial buildup of the large ice sheets in the North America during this time. Since MIS 11 which is known as the warmest interglacial period during the late Pleistocene in the Northern Hemisphere, the appearance of planktonic foraminifera represents the warmer condition during interglacial periods in the western central Arctic Ocean. Additional geochemical and mineralogical proxies need to be conducted for better understanding of depositional environments and sediment provenance as well as transport pathways.
    Repository Name: EPIC Alfred Wegener Institut
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  • 85
    facet.materialart.
    Unknown
    American Geophysical Union
    In:  EPIC3Earth's Future, American Geophysical Union, 7(12), pp. 1296-1306, ISSN: 2328-4277
    Publication Date: 2021-02-15
    Description: To counteract global warming, a geoengineering approach that aims at intervening in the Arctic ice‐albedo feedback has been proposed. A large number of wind‐driven pumps shall spread seawater on the surface in winter to enhance ice growth, allowing more ice to survive the summer melt. We test this idea with a coupled climate model by modifying the surface exchange processes such that the physical effect of the pumps is simulated. Based on experiments with RCP 8.5 scenario forcing, we find that it is possible to keep the late‐summer sea ice cover at the current extent for the next ∼60 years. The increased ice extent is accompanied by significant Arctic late‐summer cooling by ∼1.3 K on average north of the polar circle (2021–2060). However, this cooling is not conveyed to lower latitudes. Moreover, the Arctic experiences substantial winter warming in regions with active pumps. The global annual‐mean near‐surface air temperature is reduced by only 0.02 K (2021–2060). Our results cast doubt on the potential of sea ice targeted geoengineering to mitigate climate change.
    Repository Name: EPIC Alfred Wegener Institut
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  • 86
    facet.materialart.
    Unknown
    American Geophysical Union
    In:  EPIC3AGU Fall meeting, San Francisco, CA, 2019-12-09-2019-12-13USA, American Geophysical Union
    Publication Date: 2019-12-17
    Description: During the last decade the Arctic has experienced increasing human development while many native communities continue to live a subsistence lifestyle. Off-road winter tundra travel for resource exploration is most cost effective and least environmentally damaging during winter when the tundra is frozen and snow covered. Climate warming, which is occurring at an amplified rate in the Arctic, likely changes the period when access to the off-road tundra travel is possible. There currently exists, however, large uncertainty as to how climate change will impact the low-cost winter travel access across the tundra. Here we defined safe tundra access when soil temperatures are below a soil type dependent freezing temperature and snow cover is at least 20 cm. Our analysis is based on the simulated soil temperatures and snow depths of Land Surface Models (LSMs) contributing to “The Inter-Sectoral Impact Model Intercomparison Project” (ISIMIP). ISIMIP simulations are based on a common protocol, the same input data, the same spatial (0.5°) and temporal resolution (daily modeling output), and span over the period 1861-2100. The LSMs are forced by four different bias-corrected global circulation models (IPSL-CM5A-LR, GFDL-ESM2M, MIROC5, HadGEM2-ES) and three different future conditions (represented via representative concentration pathways (RCP) 2.6, 6.0, 8.5). The simulation results of our model ensemble (60 model combinations) show consistent permafrost warming and changing snow cover patterns at 60°N. Annual off-road tundra travel is considerably reduced (〉50%) under future climate change scenarios, especially under the RCP8.5. The main reduction can be observed in the spring and autumn (〉30%). The results of the multi-model ensemble differ in magnitude, however, their overall trend is consistent. Our results suggest a high vulnerability and substantial changes to the (subsistence) livelihoods of native communities and increasing costs for off-road resource exploration.
    Repository Name: EPIC Alfred Wegener Institut
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  • 87
    Publication Date: 2020-02-12
    Description: Four years after the Genomic Observatories Network was formally established as a collaboration between the Group on Earth Observations Biodiversity Observation Network and the Genomic Standards Consortium, we review the development of the network. Considering institutional infrastructure, we note the growing role of omic observation in active and increasingly interlinked marine networks, with examples such as EMBRC/ASSEMBLE, International Long Term Ecological Research Network, AtlantOS, National Association of Marine Labs, Smithsonian MarineGEO, and Partnership on Observation of the Global Oceans. We also note some key human elements essential to meeting the networks' goals, address how the community is evolving, and why performing seemingly simple tasks within a broadly distributed community presents significant challenges even among those who have agreed to use standards. From the perspectives above, we review lessons learned from use cases that leverage Genomic Observatories Network, such as the Autonomous Reef Monitoring Structures (ARMS), Ocean Sampling Day (OSD) and myOSD, which included experiences with citizen science. Looking forward, we survey 1) promising new technologies for in situ biological observation (e.g., cheap 3D printed omics samplers), 2) progress towards adoption of omics methods in marine policy and conservation programs, and 3) opportunities that a Genomic Observatory brings, alone or embedded in a network, to address novel scientific questions and support Essential Biodiversity Variables, Essential Ocean Variables, and indices such as the Ocean Health Index. Given the data intensive nature of omics investigation, we note emerging cyberinfrastructure solutions, such as the Genomic Observatories Metadatabase (GeOMe), an open-access repository for geographic and ecological metadata associated with biosamples, and predictive modeling efforts, such as those of the Island Digital Ecosystem Avatar (IDEA) Consortium. Finally, we explore the potential of Genomic Observatories as components of high-resolution calibration sites. Such observatories would provide super-contextualized "data trusts" for machine learning and artificial intelligence applications that draw on multi-omic observation.
    Repository Name: EPIC Alfred Wegener Institut
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  • 88
    Publication Date: 2020-02-12
    Description: Climate change and sustainable use of natural capital demand increased collaboration across the sciences. The first steps for effective collaboration often focus on improving interoperability between observation and analyses methodologies. This is traditionally done through a combination of standards and best practices. The ocean observation community and observing infrastructures - with regionally diverse members working in physics, chemistry, biology and engineering - is looking toward a dynamic consensus-building approach to match the rapid pace of technological evolution. This is an essential part of the long-term cooperation among ocean observing infrastructures. In the last 12 months, the ocean observing community has implemented an Ocean Best Practices System (OBPS). This System was recently adopted by the Intergovernmental Ocean Commission as an international project under GOOS and IODE. The System consists of a permanent OBPS repository hosted by IODE with state-of-the-art semantic discovery and metadata indexing for improved access to best practices and, eventually, to the data associated with them. There have been discussions to understand how to deal with differing best practices and standards on the same observation or analyses objective and other issues that arise from a comprehensive ocean best practices system. A recent survey, to be described, offers options on alternative approaches. Further, we have created a forum, in “Frontiers in Marine Science” for discussion of best practices and their applications. This presentation will cover options for evolving and sustaining ocean best practices across infrastructures. The recommendations build upon the community survey, the OGC experience, the outcomes of the OceanObs’19 conference as well as inputs from the Decade for Ocean Sciences community meetings. The extension of this work to other communities will also be examined.
    Repository Name: EPIC Alfred Wegener Institut
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  • 89
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    American Geophysical Union
    In:  EPIC32018 Ocean Sciences Meeting, Portland, Oregon, USA, 2018-02-11-2018-02-16American Geophysical Union
    Publication Date: 2020-02-12
    Description: Target audience: All ocean scientists who wish to share or discover best practice documents in their domain. Background: A working group convened under the AtlantOS project and including partners from ODIP, IODE, JCOMM, IEEE, and AWI is currently developing new technologies and approaches for handling best practices (BPs) across ocean science. The goal of the working group is to create a sustained repository for BPs, to ease their propagation and adoption. Goals: After briefly describing its work, the BP working group will engage town hall participants in a discussion on 1) how best to find and centrally archive BPs in participants' disciplines and 2) what capacities a central archive of BPs would need to help participants create, discover, share, and archive their BPs. The participant input gathered will be used to further the development of a multidisciplinary repository for BPs and better harmonise ocean observation.
    Repository Name: EPIC Alfred Wegener Institut
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  • 90
    Publication Date: 2020-05-14
    Description: IODP Exp. 383 recovered two Pleistocene sedimentary sequences from the upper continental slope along the southernmost Chilean margin that are well positioned to monitor changes in the Antarctic Circumpolar Current (ACC) upstream of the Drake Passage and the history of Patagonian glaciation. These sites are characterized by high sedimentation rates and a complex distribution of siliciclastic sediments with infrequent decimeter-scale beds of calcareous biogenic sediments. Unravelling ocean circulation and climate history from these sites requires a primary understanding of sedimentary provenance and transport mechanisms derived from a complete lithological characterization of the sequence. Here, we integrate downcore shipboard physical properties with sedimentological observations to fully characterize the sequences, evaluate potential for correlation and constrain regional depositional processes. Site U1542 (52°S; 1101 m water depth) consists of a 249 m spliced sedimentary sequence containing Middle Pleistocene to Holocene sediments. It mainly consists of clayey silt that is often interbedded with thin (~75 cm) beds of calcareous sand-bearing clayey to sandy silt with foraminifera and nannofossils or foraminifera-rich nannofossil ooze. Site U1544 (55°S; 2090 m water depth) consists of a 98 m sedimentary sequence obtained from a single hole. Sediments are also dominated by silty clay, but exhibit slightly thicker beds of calcareous ooze and a significantly higher proportion of cm- to dm-scale sand beds that are interpreted as turbidites. Based on the lithology of the recovered sediments and proximity to a glaciated continental margin, terrigenous sediment is likely delivered to these locations by a combination of ice rafting, glacial meltwater plumes, episodic downslope transport from the outer continental shelf and fine-grained sediments transported by the Cape Horn Current entering the Drake Passage as the northern branch of the ACC.
    Repository Name: EPIC Alfred Wegener Institut
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  • 91
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    American Chemical Society
    In:  EPIC3Environmental Science & Technology, American Chemical Society, 53, pp. 8747-8756, ISSN: 1520-5851
    Publication Date: 2020-06-04
    Description: Recent studies pointed to a high ice nucleating activity (INA) in the Arctic sea surface microlayer (SML). However, related chemical information is still sparse. In the present study, INA and free glucose concentrations were quantified in Arctic SML and bulk water samples from the marginal ice zone, the ice-free ocean, melt ponds, and open waters within the ice pack. T50 (defining INA) ranged from −17.4 to −26.8 °C. Glucose concentrations varied from 0.6 to 51 μg/L with highest values in the SML from the marginal ice zone and melt ponds (median 16.3 and 13.5 μg/L) and lower values in the SML from the ice pack and the ice-free ocean (median 3.9 and 4.0 μg/L). Enrichment factors between the SML and the bulk ranged from 0.4 to 17. A positive correlation was observed between free glucose concentration and INA in Arctic water samples (T50(°C) = (−25.6 ± 0.6) + (0.15 ± 0.04)·Glucose(μg/L), RP = 0.66, n = 74). Clustering water samples based on phytoplankton pigment composition resulted in robust but different correlations within the four clusters (RP between 0.67 and 0.96), indicating a strong link to phytoplankton-related processes. Since glucose did not show significant INA itself, free glucose may serve as a potential tracer for INA in Arctic water samples.
    Repository Name: EPIC Alfred Wegener Institut
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  • 92
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    American Chemical Society
    In:  EPIC3Environmental Science and Technology, American Chemical Society, 50(13), pp. 7066-7073, ISSN: 0013936X
    Publication Date: 2016-10-12
    Description: Atmospheric nuclear weapons testing (NWT) resulted in the injection of plutonium (Pu) into the atmosphere and subsequent global deposition. We present a new method for continuous semiquantitative measurement of 239Pu in ice cores, which was used to develop annual records of fallout from NWT in ten ice cores from Greenland and Antarctica. The 239Pu was measured directly using an inductively coupled plasma-sector field mass spectrometer, thereby reducing analysis time and increasing depth-resolution with respect to previous methods. To validate this method, we compared our one year averaged results to published 239Pu records and other records of NWT. The 239Pu profiles from the Arctic ice cores reflected global trends in NWT and were in agreement with discrete Pu profiles from lower latitude ice cores. The 239Pu measurements in the Antarctic ice cores tracked low latitude NWT, consistent with previously published discrete records from Antarctica. Advantages of the continuous 239Pu measurement method are (1) reduced sample preparation and analysis time; (2) no requirement for additional ice samples for NWT fallout determinations; (3) measurements are exactly coregistered with all other chemical, elemental, isotopic, and gas measurements from the continuous analytical system; and (4) the long half-life means the 239Pu record is stable through time.
    Repository Name: EPIC Alfred Wegener Institut
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  • 93
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    American Geophysical Union
    In:  EPIC3American Geophysical Union, Fall Meeting 2015, San Francisco, 2015San Francisco, American Geophysical Union
    Publication Date: 2016-10-26
    Description: Coastal erosion and relative sea-level rise inundate terrestrial permafrost with seawater and create submarine permafrost. Once flooded, permafrost begins to warm under marine conditions, which can destabilize the sea floor. The timing of inundation can be inferred from the rate of coastline retreat and the distance from the shoreline. Coastline retreat rates are inversely related to the inclination of the upper surface of submarine ice-bonded permafrost. Submarine permafrost thaw is considered to be a cause for recent observations of methane emissions from the seabed to the water column and atmosphere of the East Siberian shelf. A 52 m long core drilled from the sea ice in Buor Khaya Bay, central Laptev Sea revealed unfrozen sediment overlying ice-bonded permafrost. Dissolved methane and sulfate concentrations are inversely related along the core with higher methane and lower sulfate contents in the ice-bonded submarine permafrost relative to the overlying unfrozen sediment. The observed profiles of sediment pore water sulfate concentrations, as well as methane concentrations and methane stable carbon isotope ratios, indicate that methane from ice-bonded permafrost is oxidized at or immediately following thaw. Anaerobic oxidation of methane in the unfrozen sediment column between ice-bonded permafrost and the seabed makes it unlikely that methane from thawing submarine permafrost could reach the seabed.
    Repository Name: EPIC Alfred Wegener Institut
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  • 94
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    American Geophysical Union
    In:  EPIC3AGU Fall Meeting, San Francisco, USA, 2016-12-12-2016-12-16San Francisco, American Geophysical Union
    Publication Date: 2016-12-23
    Description: Ice-rich permafrost that formed in glacial periods of the Quaternary is highly vulnerable to thaw under ongoing climate warming and anthropogenic disturbance. The mega thaw slump near the village of Batagay (Yakutia, Russia) is an outstanding example of permafrost degradation and demonstrates that thermo-erosion processes may occur in unexpected locations, develop very rapidly in particular after disturbances, and leave behind deep rutted badlands. Retrogressive thaw slumps are particularly frequent along riverbanks and coastlines of regions where buried glacier ice or ice-rich glacial till have been mapped. In East Siberia, syngenetic Late Pleistocene Ice Complex (Yedoma) permafrost deposits accumulate volumetric ground ice contents of up to 80-90% % and extend tens of meters below the ground surface. Beyond the Yedoma main distributional range in the coastal lowlands of the Laptev and East Siberian seas, these deposits are also found on slopes of the Verkhoyan Mountain Range and in valleys of surrounding foothills, providing favorable preconditions for rapid thaw development. The Batagay mega slump exposes a profile of 30m thick Yedoma deposits underlain by ice saturated alluvial sand of around 60 m thickness and another very ice-rich layer at the base. We present data from a multi-sensor remote sensing time series investigation of the mega slump in order to assess the planimetric and volumetric dimensions and its decadal and interannual expansion rates. For ortho-rectification purposes and for volumetric analyses, we photogrammetrically derived highly detailed digital elevation models. The height difference between the headwall and the slump outflow is 145 m along a distance of 2300 m, while the maximum slump width is 840 m. Our analysis does not show any signs of stabilization after several decades (since 1980s) of slump growth, with the headwall retreating with observed rates of generally 〉10 m and more recently up to 30m per year. Reconstruction of a paleo-surface revealed that the slump has carved into the rolling topography to a depth of up to 73 m. The current size of the slump is 〉69 ha, while it had thawed 〉25 × 106 m³ of ice-rich permafrost through 2016. The majority of sediment released from the slump episodically dams up the Batagay River, forming a large temporary lake which then empties catastrophically.
    Repository Name: EPIC Alfred Wegener Institut
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  • 95
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    American Geophysical Union
    In:  EPIC3EOS, American Geophysical Union
    Publication Date: 2017-01-19
    Repository Name: EPIC Alfred Wegener Institut
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  • 96
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    Oxford University Press
    In:  EPIC3Geophysical Journal International, Oxford University Press, 208(1), pp. 449-467, ISSN: 1365-246X
    Publication Date: 2016-12-03
    Description: The Mozambique Ridge, a prominent basement high in the southwestern Indian Ocean, consists of four major geomorphological segments associated with numerous phases of volcanic activity in the Lower Cretaceous. The nature and origin of the Mozambique Ridge have been intensely debated with one hypothesis suggesting a Large Igneous Province origin. High-resolution seismic reflection data reveal a large number of extrusion centres with a random distribution throughout the southern Mozambique Ridge and the nearby Transkei Rise. Intra-basement reflections emerge from the extrusion centres and are interpreted to represent massive lava flow sequences. Such lava flow sequences are characteristic of eruptions leading to the formation of continental and oceanic flood basalt provinces, hence supporting a Large Igneous Province origin of the Mozambique Ridge. We observe evidence for widespread post-sedimentary magmatic activity that we correlate with a southward propagation of the East African Rift System. Based on our volumetric analysis of the southern Mozambique Ridge we infer a rapid sequential emplacement between ~131 Ma and ~125 Ma, which is similar to the short formation periods of other Large Igneous Provinces like the Agulhas Plateau.
    Repository Name: EPIC Alfred Wegener Institut
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  • 97
    Publication Date: 2016-10-30
    Repository Name: EPIC Alfred Wegener Institut
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  • 98
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    Unknown
    American Geophysical Union
    In:  EPIC3AGU Fall Meeting 2017, Ernest N. Morial Convention Center, New Orleans, Louisiana, USA, 2017-12-11-2017-12-15New Orleans, Louisiana, USA, American Geophysical Union
    Publication Date: 2018-04-06
    Description: The unique feature of permafrost in the Arctic is the presence of a large amount of ice below the earth surface. Thermal degradation and subsequent permafrost destabilization causes thaw subsidence and thermokarst development. Because these processes are difficult to detect due to the lack of timely and accurate elevation datasets they have received not much attention, despite their potentially global significance through the permafrost carbon feedback. Thanks to remote sensing pioneering works in Alaska and Siberia, widespread thaw subsidence has been documented and is increasingly perceived as a potentially widespread permafrost landscape response to contemporary climate change. Clearly, however, detailed local inventories are required to calibrate regional long and short-term assessments for measuring surface deformation due to permafrost thaw. The objective of our study is to analyze time series of repeat terrestrial, air-, and space borne laser scanning (rLiDAR) for quantification of land surface lowering due to permafrost thaw, which is poorly resolved in terms of recent landscape development in the Arctic. Our work aims at finding commonalities and differences of change or no change on ground-ice-rich primary surfaces that are preserved as uplands, which cover 15 to 20% of the Teshekpuk Lake Special Area on the Arctic Coastal Plain of northern Alaska. Our approach focuses on quantifying modern thaw subsidence and thermokarst rates with high spatial resolution data over several decades as well as high temporal resolution data of inter-annual intervals. Multi-annual measurements of rLiDAR over Arctic Alaska have been made by aircraft in 2016 and in 2015+2017 through on-site surveys during field expeditions. These in situ data serve as a basis for large scale surface change assessments using time series of photogrammetrically derived elevation data from very high resolution historical aerial photographs and modern satellite imagery. The synergistic data fusion approach enhances permafrost degradation monitoring and better resolves surface deformation associated with thaw subsidence. The novel datasets also provide insights into previously unrecognized patterns of rapid permafrost thaw and related interconnections.
    Repository Name: EPIC Alfred Wegener Institut
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  • 99
    Publication Date: 2018-11-09
    Repository Name: EPIC Alfred Wegener Institut
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  • 100
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    Unknown
    American Chemical Society
    In:  EPIC3Crystal Growth & Design, American Chemical Society, 18, pp. 2563-2571
    Publication Date: 2018-04-23
    Description: The morphology and growth kinetics of ice single crystals in aqueous solutions of type III antifreeze protein (AFP-III) have been studied in detail over a range of AFP-III concentrations and supercoolings. In pure water, the shape of ice crystals changes from the circular disklike to planar dendritic with increasing supercooling. In AFP-III solutions, ice crystals in the form of faceted plates, irregular dendrites with polygonized tips, and needles appear with increasing supercooling and AFP-III concentration. The growth rate of ice crystals in the crystallographic a direction is 2 orders of magnitude higher than that in the c direction. AFP-III molecules cause the stoppage of the growth of the prismatic and basal faces at low supercoolings. When supercooling exceeds the critical value, AFP-III favors the acceleration of the growth in both a and c directions. The observed behavior of AFP-III is explained in terms of the Cabrera-Vermilyea pinning model and the specificity of the dissipation of latent heat from the growing crystals with different shapes.
    Repository Name: EPIC Alfred Wegener Institut
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