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Arctic Ocean Sediments Processes Proxies and Paleoenvironment

Arctic Ocean Sediments  Processes  Proxies  and Paleoenvironment Book
Author : R. Stein
Publisher : Elsevier
Release : 2008-07-22
ISBN : 9780080558851
Language : En, Es, Fr & De

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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

Carbonate Cycles and Clay Mineralogy of Arctic Ocean Sediment Cores

Carbonate Cycles and Clay Mineralogy of Arctic Ocean Sediment Cores Book
Author : Dennis Arnold Darby
Publisher : Unknown
Release : 1971
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Carbonate Cycles and Clay Mineralogy of Arctic Ocean Sediment Cores book written by Dennis Arnold Darby, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Stratigraphy and Glacial marine Sediments of the Amerasian Basin Central Arctic Ocean

Stratigraphy and Glacial marine Sediments of the Amerasian Basin  Central Arctic Ocean Book
Author : David L. Clark, Rick R. Whitman, Kirk A. Morgan, Scudder D. Mackey
Publisher : Geological Society of America
Release : 1980-01-01
ISBN : 0813721814
Language : En, Es, Fr & De

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Book Description :

Download Stratigraphy and Glacial marine Sediments of the Amerasian Basin Central Arctic Ocean book written by David L. Clark, Rick R. Whitman, Kirk A. Morgan, Scudder D. Mackey, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Texture Mineralogy and Chemistry of Arctic Ocean Sediments

Texture  Mineralogy and Chemistry of Arctic Ocean Sediments Book
Author : Angi Satyanarayan Naidu,Ghanshyam Datt Sharma
Publisher : Unknown
Release : 1972
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Texture Mineralogy and Chemistry of Arctic Ocean Sediments book written by Angi Satyanarayan Naidu,Ghanshyam Datt Sharma, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Pliocene and Pleistocene Foraminifera Populations in Arctic Ocean Sediment Cores

Pliocene and Pleistocene Foraminifera Populations in Arctic Ocean Sediment Cores Book
Author : John A. Larson
Publisher : Unknown
Release : 1973
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The Foraminifera populations and distributions of five deep sea sediment cores recovered from the Arctic Ocean yielded data on 126 species of Foraminifera. Abundance data and species appearance and mortality data across geomagnetic reversal intervals in the cores show no positive correlation. Arctic Ocean Foraminifera apparently do not respond in any significant way to magnetic reversals of the earth's magnetic field. (Modified author abstract).

Stratigraphy and Glacial marine Sediments of the Amerasian Basin Central Arctic Ocean

Stratigraphy and Glacial marine Sediments of the Amerasian Basin  Central Arctic Ocean Book
Author : Geological Society of America
Publisher : Unknown
Release : 1934
ISBN : 9780813721811
Language : En, Es, Fr & De

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Book Description :

Download Stratigraphy and Glacial marine Sediments of the Amerasian Basin Central Arctic Ocean book written by Geological Society of America, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Regional and Temporal Variations of Mineral Assemblages in Arctic Ocean Sediments as Climatic Indicator During Glacial interglacial Changes

Regional and Temporal Variations of Mineral Assemblages in Arctic Ocean Sediments as Climatic Indicator During Glacial interglacial Changes Book
Author : Christoph Vogt
Publisher : Unknown
Release : 1997
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Regional and Temporal Variations of Mineral Assemblages in Arctic Ocean Sediments as Climatic Indicator During Glacial interglacial Changes book written by Christoph Vogt, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Physical Stratigraphy of Pleistocene Sediments from the Central Arctic Ocean

Physical Stratigraphy of Pleistocene Sediments from the Central Arctic Ocean Book
Author : Scudder Draper Mackey
Publisher : Unknown
Release : 1977
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Physical Stratigraphy of Pleistocene Sediments from the Central Arctic Ocean book written by Scudder Draper Mackey, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

G

G  Book
Author : Kathleen Ann Gannon
Publisher : Unknown
Release : 2002
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

"Offshore oil development in Arctic Alaska is expanding. Since biodegradation is a major removal mechanism of petroleum hydrocarbons from the environment, baseline data on microorganisms present are important. I estimated microbial populations and their degradation activities in Arctic Ocean sediments, and examined how sediment affects phenanthrene bioavalability. Populations of hydrocarbon degraders were significantly higher in sediments from near Prudhoe Bay than near Barrow. However, microbial counts from Prudhoe Bay were similar to those measured in the 1970s suggesting that the difference was not due to oil development activities. Total microbial counts were higher than in more temperate regions. All sediments had low hexadecane and phenanthrene mineralization potentials. The apparent partition coefficient, Kp, for phenanthrene in sediment/seawater slurries generally increased with increasing sediment organic carbon. But without aging, sediment did not influence the mineralization of phenanthrene. Overall, biodegradation will likely be a slow removal mechanism of contaminants from the Arctic marine environment"--Leaf iii.

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

Sedimentation History in the Arctic Ocean and Subarctic Seas for the Last 130 kyr Book
Author : M. A. Levitan,Yu A. Lavrushin
Publisher : Springer Science & Business Media
Release : 2009-07-14
ISBN : 3642002889
Language : En, Es, Fr & De

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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.

Arctic Ocean Bibliography

Arctic Ocean Bibliography Book
Author : Anonim
Publisher : Unknown
Release : 1986
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Arctic Ocean Bibliography book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Stratigraphy and Glacial marine Sediments of the Amerasian Basin Central Arctic Ocean

Stratigraphy and Glacial marine Sediments of the Amerasian Basin  Central Arctic Ocean Book
Author : David Leigh Clark,Rick R. Whitman,Kirk A. Morgan,Scudder D. Mackey
Publisher : Unknown
Release : 2018
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Stratigraphy and Glacial marine Sediments of the Amerasian Basin Central Arctic Ocean book written by David Leigh Clark,Rick R. Whitman,Kirk A. Morgan,Scudder D. Mackey, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Recent Marine Sediments and Submarine Topography Sverdrup Islands Canadian Arctic Archipelago

Recent Marine Sediments and Submarine Topography  Sverdrup Islands  Canadian Arctic Archipelago Book
Author : David R. Horn
Publisher : Unknown
Release : 1967
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Submarine topographic features of the channels, sounds, fiords, and bays can best be explained as the products of extensive glacial excavation of a pre-existing drainage system. Troughs, hanging troughs, strings of deeps or basins, terminal sills, linear rises and depressions, and oversteepened deltas are considered direct or indirect evidence of glacial scour. Following glaciation, a negative movement of the Sverdrup Basin was accompanied by flooding of the northern part of the Archipelago. Only the upper portions of former interfluvial areas remained above sea level. These topographic highs are the present-day islands of the Canadian Arctic Archipelago. Statistical analyses of beach, fluvial, deltaic, and offshore marine sediments reveal characteristics that may be unique to polar deserts and ice-covered seas. Textures of beach and fluvial sediments are a function of associated relief and parent material. The deltaic environment is defined as that portion of the sea floor extending from the mouth of a river to approximately 3,200 feet from shore. Deltaic sediments show a progressive decrease in grain size seaward. Size distribution is related to the settling velocities of particles of different diameters. Offshore sediments have uniform textural properties. They are a combination of silt and clay (settled from suspension), and a minor but significant portion of sand- to granule-sized sediment (ice-rafted). An increase in mean grain size on the crests of submarine topographic highs suggests that winnowing by currents is taking place over these features. Two large areas of the sea floor lack a cover of Recent sediment. Organic carbon constitutes 0.84 to 2.14% of the offshore sediments. A dual source, terrigenous and phytoplanktonic, may explain the relatively high percentage of organic carbon. There is a positive correlation between percent organic carbon and amount of clay in the samples. Results of semiquantitative clay-mineral analyses of source rock, fluvial, deltaic, and offshore marine sediments indicate that montmorillonite, kaolinite, and illite are the dominant clay minerals. In this northern region, there is no change in clay mineralogy during weathering and transport. It is suggested that this may be characteristic of weathering under polar desert conditions. The mineralogy of parent materials on the islands controls the clay mineral distribution in offshore areas. In Louise Fiord, well-crystallized kaolinite is differentially flocculated close to shore. A study of the roundness of quartz grains of sand, silt, and clay size reveals that the distribution of this property is bimodal. Coarse and medium sands are well rounded, fine sands through coarse silts are angular, and fine silt and clay-sized particles are well rounded. High roundness of grains in the medium to coarse sand grades is attributed to abrasion. Well rounded quartz in the silt-clay size range is considered to be a product of solution.

Pleistocene Turbidites of the Canada Abyssal Plain Arctic Ocean

Pleistocene Turbidites of the Canada Abyssal Plain  Arctic Ocean Book
Author : John S. Campbell
Publisher : Unknown
Release : 1973
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Pleistocene Turbidites of the Canada Abyssal Plain Arctic Ocean book written by John S. Campbell, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

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

Sedimentation History in the Arctic Ocean and Subarctic Seas for the Last 130 kyr Book
Author : M. A. Levitan,Yu A. Lavrushin
Publisher : Springer
Release : 2009-08-10
ISBN : 9783642002878
Language : En, Es, Fr & De

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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.

Assessment of the Arctic Marine Environment

Assessment of the Arctic Marine Environment Book
Author : Donald Wilbur Hood,David C. Burrell
Publisher : Fairbanks : Institute of Marine Science, University of Alaska
Release : 1976
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Based on topics selected from a symposium held in conjunction with the Third International Conference on Port and Ocean Engineering under Arctic conditions (PDAC-75).

Glacial Marine Sedimentation

Glacial Marine Sedimentation Book
Author : Bruce F. Molnia
Publisher : Springer Science & Business Media
Release : 2012-12-06
ISBN : 1461337933
Language : En, Es, Fr & De

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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.

Some Results of Paleomagnetic Study of Arctic Ocean Floor Sediments

Some Results of Paleomagnetic Study of Arctic Ocean Floor Sediments Book
Author : Earl R. Hope,Lin'kova, T. I
Publisher : Directorate of Scientific Information Services
Release : 1966
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Some Results of Paleomagnetic Study of Arctic Ocean Floor Sediments book written by Earl R. Hope,Lin'kova, T. I, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Recent Benthic Foraminifera from the Central Arctic Ocean

Recent Benthic Foraminifera from the Central Arctic Ocean Book
Author : Martin B. Lagoe
Publisher : Unknown
Release : 1975
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Benthic Foraminifera are present in 97 of 118 samples taken from the central Arctic Ocean. Samples range in depth from 1069 to 3812 meters. Sixty-seven samples contained at least 300 specimens and are termed quantitative samples. The samples were secured from the top three centimeters of sediment cores taken from the Alpha Cordillera, Canada Abyssal Plain and Canada Continental Rise regions of the Arctic Ocean. Seventy-three species of Foraminifera are identified including Triloculina frigida, n. sp.; Chilostomella elongata, n. sp.; and Buliminella elegantissima hensoni, n. var. The fauna is overwhelmingly calcareous and is dominated by the rotaline species Stetsonia horvathi Green, Eponides tumidulus horvathi Green, Eponides tener (Brady) and Epistominella arctica Green.