Arctic Ocean Sediments  Processes  Proxies  and Paleoenvironment Book

Arctic Ocean Sediments Processes Proxies and Paleoenvironment


  • Author : R. Stein
  • Publisher : Elsevier
  • Release Date : 2008-07-22
  • Genre: Science
  • Pages : 608
  • ISBN 10 : 0080558852

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Arctic Ocean Sediments Processes Proxies and Paleoenvironment Book Description :

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. *Aimed at specialists and graduates *Presents background research, recent developments, and future trends *Written by a leading scholar and industry expert

Sedimentation History in the Arctic Ocean and Subarctic Seas for the Last 130 kyr Book

Sedimentation History in the Arctic Ocean and Subarctic Seas for the Last 130 kyr


  • Author : M. A. Levitan
  • Publisher : Springer Science & Business Media
  • Release Date : 2009-07-14
  • Genre: Science
  • Pages : 387
  • ISBN 10 : 9783642002885

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Sedimentation History in the Arctic Ocean and Subarctic Seas for the Last 130 kyr Book Description :

The book reflects the results of the study of sedimentation history, paleoclimatology, and paleoceanography of the Arctic and Subarctic during the last 130 ka. The main objects under consideration are marine basins of the West Subarctic (Iceland, Norwegian, and Greenland Seas), the Arctic Ocean (Barents, Pechora, Kara, Laptev, East Siberian, Chukchi Seas and deep-sea Arctic Ocean proper), East Subarctic (Bering and Okhotsk Seas). The modern environment and geological history of water- (ice-) sheds and marine basins have been studied for each region, using different sedimentological and geochemical proxies. Mainly results of the authors' own studies are represented, with special emphasis on glacial/interglacial variability and land-ocean interaction. The book is aimed at sedimentologists, quaternary and marine geologists, paleoclimatologists and paleoceanographers, as well as being of great interest to students in the related fields.

Sea ice Distribution in the Modern Arctic Ocean  Biomarker Records from Trans Arctic Ocean Surface Sediments Book

Sea ice Distribution in the Modern Arctic Ocean Biomarker Records from Trans Arctic Ocean Surface Sediments


  • Author :
  • Publisher :
  • Release Date : 2015
  • Genre:
  • Pages :
  • ISBN 10 : OCLC:1051913888

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Sea ice Distribution in the Modern Arctic Ocean Biomarker Records from Trans Arctic Ocean Surface Sediments Book Description :

Abstract: Records of the spatial and temporal variability of Arctic Ocean sea ice are of significance for understanding the causes of the dramatic decrease in Arctic sea-ice cover of recent years. In this context, the newly developed sea-ice proxy IP25, a mono-unsaturated highly branched isoprenoid alkene with 25 carbon atoms biosynthesized specifically by sea-ice associated diatoms and only found in Arctic and sub-Arctic marine sediments, has been used to reconstruct the recent spatial sea-ice distribution. The phytoplankton biomarkers 24S-brassicasterol and dinosterol were determined alongside IP25 to distinguish ice-free or permanent ice conditions, and to estimate the sea-ice conditions semi-quantitatively by means of the phytoplankton-IP25 index (PIP25 ). Within our study, for the first time a comprehensive data set of these biomarkers was produced using fresh and deep-frozen surface sediment samples from the Central Arctic Ocean proper (>80°N latitude) characterised by a permanent ice cover today and recently obtained surface sediment samples from the Chukchi Plateau/Basin partly covered by perennial sea ice. In addition, published and new data from other Arctic and sub-Arctic regions were added to generate overview distribution maps of IP25 and phytoplankton biomarkers across major parts of the modern Arctic Ocean. These comprehensive biomarker data indicate perennial sea-ice cover in the Central Arctic, ice-free conditions in the Barents Sea and variable sea-ice situations in other marginal seas. The low but more than zero values of biomarkers in the Central Arctic supported the low in-situ productivity there. The PIP25 index values reflect modern sea-ice conditions better than IP25 alone and show a positive correlation with spring/summer sea ice. When calculating and interpreting PIP25 index as a (semi-quantitative) proxy for reconstructions of present and past Arctic sea-ice conditions from different Arctic/sub-Arctic areas, information of the source of p

The Arctic Seas Book

The Arctic Seas


  • Author : Yvonne Herman
  • Publisher : Springer Science & Business Media
  • Release Date : 2012-12-06
  • Genre: Science
  • Pages : 888
  • ISBN 10 : 9781461306771

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The Arctic Seas Book Description :

The Arctic region has long held a fascination for explorers and scientists of many countries. Despite the numerous voyages of exploration, the na ture of the central Arctic was unknown only 90 years ago; it was believed to be a shallow sea dotted with islands. During Nansen's historic voyage on the polarship Fram, which commenced in 1893, the great depth of the central basin was discovered. In the Soviet Union, investigation of the Arctic Ocean became national policy after 1917. Today research at several scientific institutions there is devoted primarily to the study of the North Polar Ocean and seas. The systematic exploration of the Arctic by the United States com menced in 1951. Research has been conducted year-round from drifting ice islands, which are tabular fragments of glacier ice that break away from ice shelves. Most frequently, ice islands originate off the northern coast of Ellesmere Island. These research platforms are occupied as weather sta tions, as well as for oceanographic and geophysical studies. Several inter national projects, conducted by Canadian, European, and U. S. groups, have been underway during the last three decades. Although much new data have accumulated since the publication of the Marine Geology and Oceanography of the Arctic Seas volume in 1974 (Yvonne Herman, ed. ), in various fields of polar research-including present-day ice cover, hydrogra phy, fauna, flora, and geology-many questions remain to be answered.

Glacial Marine Sedimentation Book

Glacial Marine Sedimentation


  • Author : Bruce F. Molnia
  • Publisher : Springer Science & Business Media
  • Release Date : 2012-12-06
  • Genre: Science
  • Pages : 844
  • ISBN 10 : 9781461337935

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Glacial Marine Sedimentation Book Description :

This volume of 18 papers describes the glacial-marine sedimentary environment in a variety of temporal and spatial settings. The volume's primary emphasis is the characteri zation of Quaternary glacial-marine sedimentation to show (1) the significant differences that exist between glacial marine environments in different geographic settings and (2) their resulting glacial-marine deposits and facies. Addi tionally, papers describing ancient glacial-marine environ ments are also presented to illustrate lithified analogs of the Quaternary deposits. With the Doctrine of Uniformitarianism in mind (the present is the key to the past), it is hoped that this volume will serve to expand the horizons of geologists working on the rock record, especially those whose primary criteria for recognition of ancient glacial-marine environments is the presence of dropstones in a finer-grained matrix. As the papers presented here show, diamictite is only one of many types of deposits that form in the glacial-marine sedimentary environment. Papers presented in this volume examine the Quaternary glacia1-marine sedimentary picture in subarctic Alaska, Antarctica, the Arctic Ocean, the Kane Basin, Baffin Island, the Puget-Fraser Lowland of Washington and British Columbia, and the North Atlantic Ocean. Ancient glacia1-marine depos its described are the Neogene Yakataga Formation of southern Alaska, the Late Paleozoic Dwyka Formation of the Karoo Basin of South Africa, and the Precambrian Mineral Fork Formation of Utah. For continuity, a paper summar1z1ng the temporal and spatial occurrences of glacial-marine deposits is also presented.

The Organic Carbon Cycle in the Arctic Ocean Book

The Organic Carbon Cycle in the Arctic Ocean


  • Author : Rüdiger Stein
  • Publisher : Springer Science & Business Media
  • Release Date : 2011-06-27
  • Genre: Science
  • Pages : 363
  • ISBN 10 : 9783642189128

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The Organic Carbon Cycle in the Arctic Ocean Book Description :

To understand the global oceanic carbon budget and related climate change, exact measurements of organic carbon flux in all oceans environments, especially the continental margins, are crucial. In fact, data have been available for some time on organic carbon sources, pathways, and burial for most of the world’s oceans, with the notable exception of the Arctic. With this book, the editors remedy this gap in knowledge, presenting an overview of organic-carbon sources, pathways, and burial of the circum-Arctic continental margin and deep-sea areas. Data from each Arctic shelf and basin are collated, presented in common and parallel formats, and related to the global carbon cycle. The book is suitable for lecturers, graduate students as well as scientists interested in the organic-carbon-cycle and Arctic Ocean (paleo-)environment.

Sea Ice and Iceberg Sedimentation in the Ocean Book

Sea Ice and Iceberg Sedimentation in the Ocean


  • Author : Alexander P. Lisitzin
  • Publisher : Springer Science & Business Media
  • Release Date : 2012-12-06
  • Genre: Science
  • Pages : 563
  • ISBN 10 : 9783642559051

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Sea Ice and Iceberg Sedimentation in the Ocean Book Description :

This reference book for researchers working on glacial sediments provides a complete overview of the various glacial deposits in the ocean. It presents a collection of worldwide data on glacio-marine phenomena.

Marine Geology and Oceanography of the Arctic Seas Book

Marine Geology and Oceanography of the Arctic Seas


  • Author : Y. Herman
  • Publisher : Springer Science & Business Media
  • Release Date : 2012-12-06
  • Genre: Science
  • Pages : 398
  • ISBN 10 : 9783642874116

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Marine Geology and Oceanography of the Arctic Seas Book Description :

Lorsqu'il n'est pas en notre pouvoir de discerner les plus vraies opinions, nous devons suivre les plus pro babies.-Rene Descartes When, in the early 1960's I undertook to covered, due to limitations imposed by a single study Arctic Ocean deep-sea cores, I did not volume. anticipate that 10 years later the climatic history Although not comprehensive, it is hoped that of the north polar basin would be still a matter of this book will provide an insight into the current debate. Although much new data have accumu status of Arctic research and will also serve as a lated in various fields of Arct.

The Arctic Ocean and Its Coast in the Cenozoic Era Book

The Arctic Ocean and Its Coast in the Cenozoic Era


  • Author :
  • Publisher :
  • Release Date : 1982
  • Genre: Geology
  • Pages : 564
  • ISBN 10 : UCSD:31822001953611

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The Arctic Ocean and Its Coast in the Cenozoic Era Book Description :

Translation of Sverenyi Ledovityi Okean i ego poberezhe v Kainozoe. Collected articles on the origins, evolution and paleo-geography of the Arctic Ocean and coastline in the light of hydrological, biogeographical, climatological and archaeological data. Much emphasis is placed on the evolution of modern arctic flora and fauna, both terrestrial and aquatic.

The Organic Carbon Cycle in the Arctic Ocean Book

The Organic Carbon Cycle in the Arctic Ocean


  • Author : Rüdiger Stein
  • Publisher : Springer Science & Business Media
  • Release Date : 2011-06-27
  • Genre: Science
  • Pages : 363
  • ISBN 10 : 9783642189128

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The Organic Carbon Cycle in the Arctic Ocean Book Description :

To understand the global oceanic carbon budget and related climate change, exact measurements of organic carbon flux in all oceans environments, especially the continental margins, are crucial. In fact, data have been available for some time on organic carbon sources, pathways, and burial for most of the world’s oceans, with the notable exception of the Arctic. With this book, the editors remedy this gap in knowledge, presenting an overview of organic-carbon sources, pathways, and burial of the circum-Arctic continental margin and deep-sea areas. Data from each Arctic shelf and basin are collated, presented in common and parallel formats, and related to the global carbon cycle. The book is suitable for lecturers, graduate students as well as scientists interested in the organic-carbon-cycle and Arctic Ocean (paleo-)environment.

Natural Gas Hydrate   Arctic Ocean Deepwater Resource Potential Book

Natural Gas Hydrate Arctic Ocean Deepwater Resource Potential


  • Author : Michael D. Max
  • Publisher : Springer Science & Business Media
  • Release Date : 2013-10-11
  • Genre: Science
  • Pages : 113
  • ISBN 10 : 9783319025087

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Natural Gas Hydrate Arctic Ocean Deepwater Resource Potential Book Description :

The book is an up-to-date basic reference for natural gas hydrate (NGH) in the Arctic Ocean. Geographical, geological, environmental, energy, new technology, and regulatory matters are discussed. The book should be of interest to general readers and scientists and students as well as industry and government agencies concerned with energy and ocean management. NGH is a solid crystalline material that compresses gas by about a factor of about 164 during crystallization from natural gas (mainly methane) - rich pore waters over time. NGH displaces water and may form large concentrations in sediment pore space. Its formation introduces changes in the geotechnical character of host sediment that allows it to be distinguished by seismic and electric exploration methods. The chemical reaction that forms NGH from gas and water molecules is highly reversible, which allows controlled conversion of the NGH to its constituent gas and water. This can be achieved rapidly by one of a number of processes including heating, depressurization, inhibitor injection, dissolution, and molecular replacement. The produced gas has the potential to make NGH a valuable unconventional natural gas resource, and perhaps the largest on earth. Estimates for NGH distribution, concentration, economic targets, and volumes in the Arctic Ocean have been carried out by restricting the economic target to deepwater turbidite sands, which are also sediment hosts for more deeply buried conventional hydrocarbon deposits. Resource base estimates are based on NGH petroleum system analysis approach using industry-standard parameters along with analogs from three relatively well known examples (Nankai-Japan, Gulf of Mexico-United States, and Arctic permafrost hydrate). Drilling data has substantiated new geotechnical-level seismic analysis techniques for estimating not just the presence of NGH but prospect volumes. In addition to a volumetric estimate for NGH having economic potential, a sedimentary depositional m