Recent and Glacial Age Organic Carbon and Biogenic Silica Accumulation in Marine Sediments PDF Download
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Author: Douglas S. Cwienk
Publisher:
ISBN:
Category : Marine sediments
Languages : en
Pages : 474
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Book Description
Author: Douglas S. Cwienk
Publisher:
ISBN:
Category : Marine sediments
Languages : en
Pages : 474
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Book Description
Author: Ruediger Stein
Publisher:
ISBN: 9783662192849
Category :
Languages : en
Pages : 236
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Book Description
Author: G.T. Rowe
Publisher: Springer Science & Business Media
ISBN: 9401124523
Category : Science
Languages : en
Pages : 403
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Book Description
Carbon dioxide and other `greenhouse' gases are increasing in the atmosphere due to the burning of fossil fuels, the destruction of rain forests, etc., leading to predictions of a gradual global warming which will perturb the global biosphere. An important process which counters this trend toward potential climate change is the removal of carbon dioxide from the surface ocean by photosynthesis. This process packages carbon in phytoplankton which enter the food chain or sink into the deep sea. Their ultimate fate is a `rain' of organic debris out of the surface-mixed layer of the ocean. On a global scale, the mechanisms and overall rate of this process are poorly known. The authors of the 25 papers in this volume present their state-of-the-art approaches to quantifying the mechanisms by which the `rain' of biogenic debris nourishes deep ocean life. Prominent deep sea ecologists, geochemists and modelers address relationships between data and models of carbon fluxes and food chains in the deep ocean. An attempt is made to estimate the fate of carbon in the deep sea on a global scale by summing up the utilization of organic matter among all the populations of the abyssal biosphere. Comparisons are made between these ecological approaches and estimates of geochemical fluxes based on sediment trapping, one-dimensional geochemical models and horizontal (physical) input from continental margins. Planning interdisciplinary enterprises between geochemists and ecologists, including new field programs, are summarized in the final chapter. The summary includes a list of the important gaps in understanding which must be addressed before the role of the deep-sea biota in global-scale processes can be put in perspective.
Author: Gerold Wefer
Publisher: Springer Science & Business Media
ISBN: 9783540210283
Category : Science
Languages : en
Pages : 742
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Book Description
The South Atlantic plays a significant role as a link between the Antarctic Ocean and the North Atlantic, both in terms of the heat budget of the North Atlantic and the circulation of the entire ocean. The heat and mass exchanges between the Antarctic Ocean and the South Atlantic during the Late Quaternary have been investigated over the past ten years, including their impact on world climate. This has required the study of present-day early diagenetic processes in the water column and sediments, as well as sediment properties that have a close relationship to environmental parameters ("proxies"), which can be used to decipher past conditions (temperature, salinity, productivity, etc.). The interdisciplinary research project "The South Atlantic in the Late Quaternary - Reconstruction of material budgets and current systems" was a long-term scientific program at Bremen University. This program benefited from the sample material gained on several expeditions with the research vessels Meteor and Polarstern. This book presents the summarized results of the various topics of study in 30 articles arranged in seven sections. TOC:Particle Flux in the South Atlantic.- Documentation of the Marine Environment in Microfossil Assemblages and Stable Isotopes.- Physical Sedimentary Records of Palaeoenvironmental and Depositional Conditions.- Source and Transport Signatures of the Terrigenous Sediment Fraction.-Early Diagenetic Processes and Preservation of Primary Signals.-History of Upper Ocean Circulation.- History of Bottom and DeepWater Circulation.-
Author: Ruediger Stein
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 240
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Author:
Publisher:
ISBN:
Category : Antarctica
Languages : en
Pages : 260
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Author: H. Huneke
Publisher: Elsevier
ISBN: 0444530002
Category : Science
Languages : en
Pages : 865
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Book Description
'Deep-Sea Sediments' focuses on the sedimentary processes operating within the various modern and ancient deep-sea environments. The chapters track the way of sedimentary particles from continental erosion or production in the marine realm, to transport into the deep sea, to final deposition on the sea floor.
Author: Jobst Hülsemann
Publisher:
ISBN:
Category : Continental shelf
Languages : en
Pages : 20
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Book Description
Analytical results and interpretations of organic constituents of core samples from the continental shelf, the Florida-Hatteras Slope, and the Blake Plateau.
Author: Parker Davies Trask
Publisher:
ISBN:
Category : Marine sediments
Languages : en
Pages : 892
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Book Description
Author: Larry J. Doyle
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 392
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Book Description
