Arctic Ocean Sediments: Processes, Proxies, and Paleoenvironment
Elsevier, 22. jul. 2008 - 608 sider
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
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abundance accumulation rates ACEX age model alkenones Amerasian Basin Arctic Ocean Arctic Ocean sediments Atlantic water Backman Barents Sea Cenozoic central Arctic central Arctic Ocean Chapter Chukchi clay climate correlation Cretaceous Darby deglaciation deposition distribution Dowdeswell East Siberian Sea Elverhøi Eocene Eurasian Basin Fahl Figure flux fraction freshwater Geology glacial global Grantz Holocene ice sheet iceberg indicate interglacial interval isotope Jakobsson Jokat Kara Sea Knies kyr BP Laptev Sea late Lomonosov Ridge Macdonald major Makarov Basin Mangerud meltwater n-alkanes Nørgaard-Pedersen North Atlantic OC contents organic carbon organic matter planktonic Polar Polyak primary production pro¢les proxies Quaternary ratios reconstruction records Research salinity samples sea-ice sea-ice cover sea-ice sediments sediment cores sediment input sedimentary sedimentation rates sediments shelf smectite source areas Spielhagen Stein Strait stratigraphy surface sediments Svalbard temperature terrigenous OC Thiede transport Trough turbidites values variability water depth Weichselian Yenisei