Signatur:
AWI G2-21-94484
Beschreibung / Inhaltsverzeichnis:
Although it is generally accepted that the Arctic Ocean is a very sensitive and important region for changes in the global climate, this region is the last major physiographic province of the earth whose short-and long-term geological history is much less known in comparison to other ocean regions. This lack of knowledge is mainly caused by the major technological/logistic problems in reaching this harsh, ice-covered region with normal research vessels and in retrieving long and undisturbed sediment cores. During the the last about 20 years, however, several international and multidisciplinary ship expeditions, including the first scientific drilling on Lomonosov Ridge in 2004, a break-through in Arctic research, were carried out into the central Artic and its surrounding shelf seas. Results from these expeditions have greatly advanced our knowledge on Arctic Ocean paleoenvironments. Published syntheses about the knowledge on Arctic Ocean geology, on the other hand, are based on data available prior to 1990. A comprehensive compilation of data on Arctic Ocean paleoenvironment and its short-and long-term variability based on the huge amount of new data including the ACEX drilling data, has not been available yet. With this book, presenting (1) detailed information on glacio-marine sedimentary processes and geological proxies used for paleoenvironmental reconstructions, and (2) detailed geological data on modern environments, Quaternary variability on different time scales as well as the long-term climate history during Mesozoic-Tertiary times, this gap in knowledge will be filled.
Materialart:
Monographie ausleihbar
Seiten:
XIV, 592 Seiten
,
Illustrationen
Ausgabe:
First edition
ISBN:
9780444520180
Serie:
Developments in marine geology 2
Sprache:
Englisch
Anmerkung:
Contents
Preface
Acknowledgements
List of Abbreviations
Part 1: Introduction and Background
Chapter 1. Introduction to the Arctic: Significance and History
1.1 The Arctic Ocean and Its Significance for the Earth's Climate System
1.2 History of Arctic Ocean Research
1.3 Plate Tectonic Evolution and Palaeogeography
1.4 Glaciations in Earth's History
Chapter 2. Modern Physiography, Hydrology, Climate, and Sediment Input
2.1 Bathymetry and Physiography
2.2 Oceanic Circulation Pattern and Water-Mass Characteristics
2.3 Sea-Ice Cover: Extent, Thickness, and Variability
2.4 Primary Production and Vertical Carbon Fluxes in the Arctic Ocean
2.5 River Discharge
2.6 Permafrost
2.7 Coastal Erosion
2.8 Aeolian Input
2.9 Modern Sediment Input: A Summary
Part 2: Processes and Proxies
Chapter 3. Glacio-Marine Sedimentary Processes
3.1 Sea-Ice Processes: Sediment Entrainment and Transport
3.2 Ice Sheet- and Iceberg-Related Processes
3.3 Sediment Mass-Wasting Processes
3.4 Turbidite Sedimentation in the Central Arctic Ocean
Chapter 4. Proxies Used for Palaeoenvironmental Reconstructions in the Arctic Ocean
4.1 Lithofacies Concept
4.2 Grain-Size Distribution
4.3 Proxies for Sources and Transport Processes of Terrigenous Sediments
4.4 Trace Elements Used for Palaeoenvironmental Reconstruction
4.5 Micropalaeontological Proxies and Their (Palaeo-) Environmental and Stratigraphical Significance
4.6 Stable Isotopes of Foraminifers
4.7 Organic-Geochemical Proxies for Organic-Carbon Source and Palaeoenvironment
Part 3: The Marine-Geological Record
5 Modern Environment and its record in surface sediments
5.1 Terrigenous (non-biogenic) components in Arctic Ocean surface sediments: Implications for provenance and modern transport processes
5.2 Organic-Carbon Content: Terrigenous Supply versus Primary Production
Chapter 6. Quaternary Variability of Palaeoenvironment and Its Sedimentary Record
6.1 The Stratigraphic Framework of Arctic Ocean Sediment Cores: Background, Problems, and Perspectives
6.2 Variability of Quaternary Ice Sheets and Palaeoceanographic Characteristics: Terrestrial, Model, and Eurasian Continental Margin Records
6.3 Circum-Arctic Glacial History, Sea-Ice Cover, and Surface-Water Characteristics: Quaternary Records from the Central Arctic Ocean
6.4 Accumulation of Particulate Organic Carbon at the Arctic Continental Margin and Deep-Sea Areas During Late Quaternary Times
Chapter 7. Mesozoic to Cenozoic Palaeoenvironmental Records of High Northern Latitudes
7.1 Mesozoic High-Latitude Palaeoclimate and Arctic Ocean Palaeoenvironment
7.2 Cenozoic High-Latitude Palaeoclimate and Arctic Ocean Palaeoenvironment
Chapter 8. Open Questions and Future Geoscientific Arctic Ocean Research
8.1 Quaternary and Neogene Climate Variability on Sub-Millennial to Milankovich Time Scales
8.2 The Mesozoic-Cenozoic History of the Arctic Ocean
References
Index
Standort:
AWI Lesesaal
Zweigbibliothek:
AWI Bibliothek
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