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  • 2020-2024  (5)
  • 2000-2004
  • 1990-1994
  • 1965-1969
  • 1940-1944
  • 2020  (5)
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  • 2020-2024  (5)
  • 2000-2004
  • 1990-1994
  • 1965-1969
  • 1940-1944
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  • 1
    Unknown
    Global Heritage Stone: Worldwide Examples of Heritage Stones (2020)
    London : The Geological Society
    Details
    Keywords: natural stone ; stone designation ; heritage stone
    Description / Table of Contents: Worldwide examples of global heritage stones: an introduction / Joseph T. Hannibal, S. Kramar and B. J. Cooper / Geological Society, London, Special Publications, 486, 1-6, 26 August 2020, https://doi.org/10.1144/SP486-2020-84 --- Victorian Bluestone: a proposed Global Heritage Stone Province from Australia / Susan M. Walter / Geological Society, London, Special Publications, 486, 7-31, 1 January 2018, https://doi.org/10.1144/SP486.1 --- Trentino Porphyry, Italy / P. Primavori and A. Angheben / Geological Society, London, Special Publications, 486, 33-51, 26 August 2020, https://doi.org/10.1144/SP486-2020-20 --- Cadalso de los Vidrios leucogranite ‘Blanco Cristal’: a widely used heritage stone from Spain / David M. Freire-Lista and Rafael Fort / Geological Society, London, Special Publications, 486, 53-65, 9 October 2019, https://doi.org/10.1144/SP486-2017-189 --- Rapakivi granite in the architecture of St Petersburg: a potential Global Heritage Stone from Finland and Russia / Andrey Bulakh, Paavo Härmä, Elena Panova and Olavi Selonen / Geological Society, London, Special Publications, 486, 67-76, 31 July 2020, https://doi.org/10.1144/SP486-2018-5 --- Indiana Limestone: America's building stone / Nelson R. Shaffer / Geological Society, London, Special Publications, 486, 77-101, 1 January 2019, https://doi.org/10.1144/SP486-2018-58 --- Solnhofener Plattenkalk: a heritage stone of international significance from Germany / M. Kölbl-Ebert and B. J. Cooper / Geological Society, London, Special Publications, 486, 103-113, 1 January 2019, https://doi.org/10.1144/SP486-2017-324 --- Échaillon stone from France: a Global Heritage Stone Resource proposal / Thierry Dumont and Sauvegarde du Patrimoine Industriel d'Autrefois / Geological Society, London, Special Publications, 486, 115-128, 9 July 2020, https://doi.org/10.1144/SP486-2019-92 --- Global Heritage Stone: Belgian black ‘marbles’ / Francis Tourneur / Geological Society, London, Special Publications, 486, 129-147, 1 January 2018, https://doi.org/10.1144/SP486.5 --- Drenov Grič black limestone: a heritage stone from Slovenia / Sabina Kramar, Nina Žbona, Mojca Bedjanič, Ana Mladenović and Boštjan Rožič / Geological Society, London, Special Publications, 486, 149-162, 4 October 2019, https://doi.org/10.1144/SP486-2017-188 --- Seneca sandstone: a heritage stone from the USA / Carol A. Grissom, Emily M. Aloiz, Edward P. Vicenzi and Richard A. Livingston / Geological Society, London, Special Publications, 486, 163-176, 20 September 2018, https://doi.org/10.1144/SP486.4 --- Berea sandstone: A heritage stone of international significance from Ohio, USA / Joseph T. Hannibal / Geological Society, London, Special Publications, 486, 177-204, 27 January 2020, https://doi.org/10.1144/SP486-2019-33 --- Cretaceous building sandstones in northern Germany / Angela Ehling / Geological Society, London, Special Publications, 486, 205-215, 1 January 2018, https://doi.org/10.1144/SP486.7 --- The white marbles of Brasília, a World Heritage site and capital of Brazil / Maria Heloisa Barros de Oliveira Frascá, Risale Neves and Nuria Fernández Castro / Geological Society, London, Special Publications, 486, 217-227, 23 January 2020, https://doi.org/10.1144/SP486-2018-31 --- Cockeysville marble: a heritage stone from Maryland, USA / Joseph T. Hannibal and Lorraine Schnabel / Geological Society, London, Special Publications, 486, 229-249, 22 June 2020, https://doi.org/10.1144/SP486-2019-1 --- Connemara Marble, Co. Galway, Ireland: a Global Heritage Stone Resource proposal / Patrick N. Wyse Jackson, Louise Caulfield, Martin Feely, Ambrose Joyce and Matthew A. Parkes / Geological Society, London, Special Publications, 486, 251-268, 1 January 2019, https://doi.org/10.1144/SP486.6 --- Gneisses (Serizzo and Beola) of the Verbano–Cusio–Ossola District (Piedmont, northern Italy): possible candidates for designation as Global Heritage Stone Resources / Alessandro Cavallo, Giovanna Antonella Dino and Piero Primavori / Geological Society, London, Special Publications, 486, 269-285, 25 October 2019, https://doi.org/10.1144/SP486-2018-8 --- Soapstone in Jugend (Art Nouveau) architecture of northern European cities (1890s–1910s) / Andrey Bulakh, Olavi Selonen and Heikki Pirinen / Geological Society, London, Special Publications, 486, 287-294, 1 January 2019, https://doi.org/10.1144/SP486-2017-158 --- Shoksha quartzite, a heritage stone of international importance from Russia / Andrey Bulakh and Jacques Touret / Geological Society, London, Special Publications, 486, 295-303, 24 February 2020, https://doi.org/10.1144/SP486-2017-303 --- Heritage stone in Cape Town, South Africa / Doug Cole / Geological Society, London, Special Publications, 486, 305-323, 1 January 2018, https://doi.org/10.1144/SP486.3 --- Heritage stones in India / Vinod K. Sharma / Geological Society, London, Special Publications, 486, 325-341, 21 November 2019, https://doi.org/10.1144/SP486-2017-151 --- The limits of heritage stone designation / Barry J. Cooper / Geological Society, London, Special Publications, 486, 343-347, 1 January 2018, https://doi.org/10.1144/SP486.2
    Pages: Online-Ressource (VI, 354 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 9781786204080
    URL: https://sp.lyellcollection.org/content/486/1
    Language: English
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    E-BOOK
  • 2
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    Molecular biomarkers, UK'37-derived sea surface temperature, δ²H of C37-alkenones and δ¹⁸O-seawater of Globigerinoides ruber from ODP Site 202-1240 (2020)
    PANGAEA
    Details
    Publication Date: 2023-01-13
    Description: Down core marine sediment samples from ODP Site 1240 have been used for the analysis of the C28 and C30 1,14-diols, the C37:2 and C37:3 long chain ketones (alkenones) and the 24-methylcholesta-5,22-dien-3β-ol (brassicasterol) as proxies of primary productivity. Alkenones were also used to infer past sea surface temperatures through the unsaturation index UK'37. The C29 n-alkane was measured to obtain information on continental material inputs. δD of C37-alkenones and δ¹⁸O-seawater of Globigerinoides ruber were used as indicators of relative salinity changes. This data has been used for the study of the period between 150 and 110 ka (sediment depth from ca. 13 to 17 m), according to the age model from Rippert et al. (2017).
    Type: Dataset
    Format: application/zip, 3 datasets
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    DATA PANGAEA
  • 3
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    A late Pleistocene dataset of Agulhas Current variability (2020)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: The interoceanic transfer between the Indian and the Atlantic Oceans known as 'Agulhas leakage' is of global significance as it alters the Atlantic Meridional Overturning Circulation (AMOC) on different time scales. Variability in the Agulhas Current regime is key in shaping hydroclimate on the adjacent coastal areas of the African continent today as well as during the past. However, the lack of long, continuous records from the Agulhas Current core region dating beyond the last glacial cycle prevents elucidation of its role in regional and wider global climate changes. This is the first continuous record of hydrographic variability (SST; δ18Osw) from the Agulhas Current core region spanning the past 270,000 years. The data set is analytical sound and provides a solid age model. As such, it can be used by paleoclimate scientists, archaeologists, and climate modelers to evaluate e.g. linkages between the Agulhas Current system and AMOC dynamics, as well as connections between ocean heat transport and Southern African climate change in the past and its impact on human evolution.
    Keywords: Agulhas_Current; Agulhas Current; Binary Object; Binary Object (File Size); Binary Object (Media Type); File content
    Type: Dataset
    Format: text/tab-separated-values, 4 data points
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  • 4
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    An international code comparison study on coupled thermal, hydrologic and geomechanical processes of natural gas hydrate-bearing sediments (2020)
    Elsevier
    Details
    Publication Date: 2023-02-08
    Description: Highlights • Code comparisons build confidence in simulators to model interdependent processes. • International hydrate reservoir simulators are compared over five complex problems. • Geomechanical processes significantly impact response of gas hydrate reservoirs. • Simulators yielded comparable results, however many differences are noted. • Equivalent constitutive models are required to achieve agreement across simulators. Geologic reservoirs containing gas hydrate occur beneath permafrost environments and within marine continental slope sediments, representing a potentially vast natural gas source. Numerical simulators provide scientists and engineers with tools for understanding how production efficiency depends on the numerous, interdependent (coupled) processes associated with potential production strategies for these gas hydrate reservoirs. Confidence in the modeling and forecasting abilities of these gas hydrate reservoir simulators (GHRSs) grows with successful comparisons against laboratory and field test results, but such results are rare, particularly in natural settings. The hydrate community recognized another approach to building confidence in the GHRS: comparing simulation results between independently developed and executed computer codes on structured problems specifically tailored to the interdependent processes relevant for gas hydrate-bearing systems. The United States Department of Energy, National Energy Technology Laboratory, (DOE/NETL), sponsored the first international gas hydrate code comparison study, IGHCCS1, in the early 2000s. IGHCCS1 focused on coupled thermal and hydrologic processes associated with producing gas hydrates from geologic reservoirs via depressurization and thermal stimulation. Subsequently, GHRSs have advanced to model more complex production technologies and incorporate geomechanical processes into the existing framework of coupled thermal and hydrologic modeling. This paper contributes to the validation of these recent GHRS developments by providing results from a second GHRS code comparison study, IGHCCS2, also sponsored by DOE/NETL. IGHCCS2 includes participants from an international collection of universities, research institutes, industry, national laboratories, and national geologic surveys. Study participants developed a series of five benchmark problems principally involving gas hydrate processes with geomechanical components. The five problems range from simple geometries with analytical solutions to a representation of the world's first offshore production test of methane hydrates, which was conducted with the depressurization method off the coast of Japan. To identify strengths and limitations in the various GHRSs, study participants submitted solutions for the benchmark problems and discussed differing results via teleconferences. The GHRSs evolved over the course of IGHCCS2 as researchers modified their simulators to reflect new insights, lessons learned, and suggested performance enhancements. The five benchmark problems, final sample solutions, and lessons learned that are presented here document the study outcomes and serve as a reference guide for developing and testing gas hydrate reservoir simulators.
    Type: Article , PeerReviewed
    Format: text
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  • 5
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    Stoichiometry of Fe, Mn and Co in the marine diazotroph Crocosphaera subtropica ATCC51142 in Fe- and P-limited continuous cultures (2020)
    Inter Research
    Details
    Publication Date: 2023-02-08
    Description: We investigated trace element stoichiometries of the nitrogen-fixing marine cyanobacterium Crocosphaera subtropica ATCC51142 under steady-state growth conditions. We utilized exponentially fed batch cultures and varied iron (Fe) concentrations to establish nutrient limitation in C. subtropica growing at a constant growth rate (0.11 d -1 ). No statistical difference in cell density, chlorophyll a , particulate organic carbon (C), nitrogen (N) and phosphorus (P) were observed between consecutive days after Day 14, and cultures were assumed to be at steady state with respect to growth for the remaining 11 d of the experiment. Cultures were limited by P in the highest Fe treatment (41 nmol l -1 ) and by Fe in the 2 lower-concentration Fe treatments (1 and 5 nmol l -1 ). Cell size and in vivo fluorescence changed throughout the experiment in the 1 nmol l -1 Fe treatment, suggesting ongoing acclimation of C. subtropica to our lowest Fe supply. Nevertheless, Fe:C ratios were not significantly different between the Fe treatments, and we calculated an average (±SD) Fe:C ratio of 32 ± 14 µmol mol -1 for growth at 0.11 d -1 . Steady-state P-limited cells had lower P quotas, whilst Fe-limited cells had higher manganese (Mn) and cobalt (Co) quotas. We attribute the increase in Mn and Co quotas at low Fe to a competitive effect resulting from changes in the supply ratio of trace elements. Such an effect has implications for variability in elemental stoichiometry in marine phytoplankton, and potential consequences for trace metal uptake and cycling in marine systems.
    Type: Article , PeerReviewed
    Format: text
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