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South Atlantic Paleoceanography
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Book Synopsis South Atlantic Paleoceanography by : K. J. Hsu
Download or read book South Atlantic Paleoceanography written by K. J. Hsu and published by Cambridge University Press. This book was released on 1985-11-07 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the findings made in the late 1970s and 80s about the history of the South Atlantic Ocean.
Book Synopsis Use of Proxies in Paleoceanography by : Gerhard Fischer
Download or read book Use of Proxies in Paleoceanography written by Gerhard Fischer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paleoceanographic proxies provide infonnation for reconstructions of the past, including climate changes, global and regional oceanography, and the cycles of biochemical components in the ocean. These prox ies are measurable descriptors for desired but unobservable environmental variables such as tempera ture, salinity, primary productivity, nutrient content, or surface-water carbon dioxide concentrations. The proxies are employed in a manner analogous to oceanographic methods. The water masses are first characterized according to their specific physical and chemical properties, and then related to particular assemblages of certain organisms or to particular element or isotope distributions. We have a long-standing series of proven proxies available. Marine microfossil assemblages, for instance, are employed to reconstruct surface-water temperatures. The calcareous shells of planktonic and benthic microorgan isms contain a wealth of paleoceanographic information in their isotopic and elemental compositions. Stable oxygen isotope measurements are used to detennine ice volume, and MglCa ratios are related to water temperatures, to cite a few examples. Organic material may also provide valuable infonnation, e. g. , about past productivity conditions. Studying the stable carbon isotope composition of bulk organic matter or individual marine organic components may provide a measure of past surface-water CO 2 conditions within the bounds of certain assumptions. Within the scope of paleoceanographic investigations, the existing proxies are continuously evolving and improving, while new proxies are being studied and developed. The methodology is improved by analysis of samples from the water column and surface sediments, and through laboratory experiments.
Book Synopsis Paleoceanography of the South Atlantic Ocean from the Middle Eocene Through the Oligocene by : Gregory A. Mead
Download or read book Paleoceanography of the South Atlantic Ocean from the Middle Eocene Through the Oligocene written by Gregory A. Mead and published by . This book was released on 1995 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pleistocene Paleoceanography of the Vema Channel, South Atlantic by : Eric James Tappa
Download or read book Pleistocene Paleoceanography of the Vema Channel, South Atlantic written by Eric James Tappa and published by . This book was released on 1984 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The South Atlantic in the Late Quaternary by : Gerold Wefer
Download or read book The South Atlantic in the Late Quaternary written by Gerold Wefer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: The South Atlantic plays a critical role in the couplingofoceanic processes between the Antarctic and the lower latitudes. The Antarctic Ocean, along with the adjacent southern seas, is of substantial importance for global climate and for the distributionofwater masses because itprovides large regions ofthe world ocean with intermediate and bottom waters. In contrast to the North Atlantic, the Southern Ocean acts more as an "information distributor", as opposed to an amplifier. Just as the North Atlantic is influencedby the South Atlantic through the contributionofwarm surface water,the incomingsupply ofNADW - in the area of the Southern Ocean as Circumantarctic Deep Water - influences the oceanography ofthe Antarctic. The competing influences from the northern and southern oceans on the current and mass budget systems can be best studied in the South Atlantic. Not only do changes in the current systems in the eastern Atlantic high-production regions affect the energy budget, they also influence the nutrient inventories, and therefore impact the entire productivity ofthe ocean. In addition, the broad region of the polar front is a critical area with respect to productivity-related circulation since it is the source of Antarctic Intermediate Water. Although theAntarctic Intermediate Watertoday liesdeeper than the water that rises in the upwelling regions, it is the long-term source ofnutrients that are ultimately responsible for the supply oforganic matter to the sea floor and to sediments.
Book Synopsis Miocene Paleoceanography of the South Atlantic Ocean at 22, 16, and 8 Ma by : David A. Hodell
Download or read book Miocene Paleoceanography of the South Atlantic Ocean at 22, 16, and 8 Ma written by David A. Hodell and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The South Atlantic by : Gerold Wefer
Download or read book The South Atlantic written by Gerold Wefer and published by Springer. This book was released on 1996-12-17 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents results of recent projects in oceanography and marine geosciences (e.g. WOCE, JGOFS, PAGES, ODP) regarding present and past circulation in the South Atlantic. The objective of the book is to integrate results from both oceanographic and geological studies. As the connecting link between the Antarctic and the North Atlantic, the South Atlantic plays a crucial role with regard to the heat budget of the North Atlantic and to the biogeochemical budget of the global ocean. New results from studies of meridional water mass and heat transports are presented. The central theme of geological investigations is the reconstruction of current and productivity systems in the South Atlantic during the late Quaternary.
Book Synopsis Investigation of Late Quaternary Paleoceanography and Paleoclimatology by : R. M. Cline
Download or read book Investigation of Late Quaternary Paleoceanography and Paleoclimatology written by R. M. Cline and published by Geological Society of America. This book was released on 1976 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The South Atlantic in the Late Quaternary by : Gerold Wefer
Download or read book The South Atlantic in the Late Quaternary written by Gerold Wefer and published by Springer Verlag. This book was released on 2004-01-01 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Early Oligocene Paleoceanography of the South Atlantic (ODP Site 1264) and Equatorial Pacific (IODP Site U1333) Based on Calcareous Nannofossils by : Michelle Sandbrink
Download or read book Early Oligocene Paleoceanography of the South Atlantic (ODP Site 1264) and Equatorial Pacific (IODP Site U1333) Based on Calcareous Nannofossils written by Michelle Sandbrink and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pliocene Paleoclimatic and Paleoceanographic History of Stable Isotopic Records from DSDP Sites 516A and 517, LEG 72, South Atlantic Ocean by : Kathleen Leonard Howell
Download or read book Pliocene Paleoclimatic and Paleoceanographic History of Stable Isotopic Records from DSDP Sites 516A and 517, LEG 72, South Atlantic Ocean written by Kathleen Leonard Howell and published by . This book was released on 1982 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eocene-Oligocene Paleoceanography of the Subantarctic South Atlantic by : Laura Pea
Download or read book Eocene-Oligocene Paleoceanography of the Subantarctic South Atlantic written by Laura Pea and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cenozoic Calcareous Nannoplankton of the South Atlantic Ocean by : Wuchang Wei
Download or read book Cenozoic Calcareous Nannoplankton of the South Atlantic Ocean written by Wuchang Wei and published by . This book was released on 1989 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Application of Sr and Nd Radiogenic Isotopes to South Atlantic Paleoceanography by : Randye Rutberg
Download or read book The Application of Sr and Nd Radiogenic Isotopes to South Atlantic Paleoceanography written by Randye Rutberg and published by . This book was released on 2000 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Late Quaternary Paleoceanography and Paleoclimate of the North Atlantic Ocean by : Denise L. Bäckström
Download or read book Late Quaternary Paleoceanography and Paleoclimate of the North Atlantic Ocean written by Denise L. Bäckström and published by . This book was released on 2000 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proxies in Late Cenozoic Paleoceanography by : C. Hillaire-Marcel
Download or read book Proxies in Late Cenozoic Paleoceanography written by C. Hillaire-Marcel and published by Elsevier. This book was released on 2007-05-25 with total page 863 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume is the first in a series of two books dedicated to the paleoceanography of the Late Cenozoic ocean. The need for an updated synthesis on paleoceanographic science is urgent, owing to the huge and very diversified progress made in this domain during the last decade. In addition, no comprehensive monography still exists in this domain. This is quite incomprehensible in view of the contribution of paleoceanographic research to our present understanding of the dynamics of the climate-ocean system. The focus on the Late Cenozoic ocean responds to two constraints. Firstly, most quantitative methods, notably those based on micropaleontological approaches, cannot be used back in time beyond a few million years at most. Secondly, the last few million years, with their strong climate oscillations, show specific high frequency changes of the ocean with a relatively reduced influcence of tectonics. The first volume addresses quantitative methodologies to reconstruct the dynamics of the ocean andthe second, major aspects of the ocean system (thermohaline circulation, carbon cycle, productivity, sea level etc.) and will also present regional synthesis about the paleoceanography of major the oceanic basins. In both cases, the focus is the “open ocean leaving aside nearshore processes that depend too much onlocal conditions. In this first volume, we have gathered up-to-date methodologies for the measurement and quantitative interpretation of tracers and proxies in deep sea sediments that allow reconstruction of a few key past-properties of the ocean( temperature, salinity, sea-ice cover, seasonal gradients, pH, ventilation, oceanic currents, thermohaline circulation, and paleoproductivity). Chapters encompass physical methods (conventional grain-size studies, tomodensitometry, magnetic and mineralogical properties), most current biological proxies (planktic and benthic foraminifers, deep sea corals, diatoms, coccoliths, dinocysts and biomarkers) and key geochemical tracers (trace elements, stable isotopes, radiogenic isotopes, and U-series). Contributors to the book and members of the review panel are among the best scientists in their specialty. They represent major European and North American laboratories and thus provide a priori guarantees to the quality and updat of the entire book. Scientists and graduate students in paleoclimatology, paleoceanography, climate modeling, and undergraduate and graduate students in marine geology represent the target audience. This volume should be of interest for scientists involved in several international programs, such as those linked to the IPCC (IODP – Integrated Ocean Drilling Program; PAGES – Past Global Changes; IMAGES – Marine Global Changes; PMIP: Paleoclimate Intercomparison Project; several IGCP projects etc.), That is, all programs that require access to time series illustrating changes in the climate-ocean system. Presents updated techniques and methods in paleoceanography Reviews the state-of-the-art interpretation of proxies used for quantitative reconstruction of the climate-ocean system Acts as a supplement for undergraduate and graduate courses in paleoceanography and marine geology
Book Synopsis Paleoceanography and Paleoclimatology of the Southern Ocean by : Detlef A. Warnke
Download or read book Paleoceanography and Paleoclimatology of the Southern Ocean written by Detlef A. Warnke and published by . This book was released on 2007 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
