Late Quaternary Southwestern African Terrestrial-climate Signals in the Marine Record of Walvis Ridge, SE Atlantic Ocean PDF Download
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Author: Jan-Berend Willem Stuut
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 132
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Author: Jan-Berend Willem Stuut
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 132
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Author: John Kinahan
Publisher: Boydell & Brewer
ISBN: 1847012884
Category : History
Languages : en
Pages : 545
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Book Description
The first full-length examination of the archaeology and history of the Namib Desert.This is a story of human survival over the last one million years in the Namib Desert - one of the most hostile environments on Earth. Namib reveals the resilience and ingenuity of desert communities and provides a vivid picture of our species' response to climate change, and ancient strategies to counter ever-present risk. Dusty fragments of stone, pottery and bone tell a history of perpetual transition, of shifting and temporary states of balance. Namib digs beneath the usual evidence of archaeology to uncover a world of arcane rituals, of travelling rain-makers, of intricate social networks which maintained vital systems of negotiated access to scarce resources. Ranging from the earliest evidence of human occupation, through colonial rule and genocide, to the invasion of the desert by South African troops during the First World War, this is the first comprehensive archaeology of the Namib. Among its important contributions are the reclaiming of the indigenous perspective during the brutal colonial occupation, and establishing new material links between the imperialist project in German South West Africa during 1885-1915 and the Third Reich, and between Nazi ideology and Apartheid.Southern Africa: University of Namibia Press/Jacana are the reclaiming of the indigenous perspective during the brutal colonial occupation, and establishing new material links between the imperialist project in German South West Africa during 1885-1915 and the Third Reich, and between Nazi ideology and Apartheid.Southern Africa: University of Namibia Press/Jacana are the reclaiming of the indigenous perspective during the brutal colonial occupation, and establishing new material links between the imperialist project in German South West Africa during 1885-1915 and the Third Reich, and between Nazi ideology and Apartheid.Southern Africa: University of Namibia Press/Jacana are the reclaiming of the indigenous perspective during the brutal colonial occupation, and establishing new material links between the imperialist project in German South West Africa during 1885-1915 and the Third Reich, and between Nazi ideology and Apartheid.Southern Africa: University of Namibia Press/Jacana
Author: Kazuharu Mizuno
Publisher:
ISBN:
Category : Africa, Southern
Languages : en
Pages : 218
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Author: International Union for Quaternary Research. Congress
Publisher:
ISBN:
Category : Environmental geology
Languages : en
Pages : 228
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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 634
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Author: Gerold Wefer
Publisher: Springer Science & Business Media
ISBN: 3642803539
Category : Science
Languages : en
Pages : 815
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1416
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Author: Peter Knippertz
Publisher: Springer
ISBN: 9401789789
Category : Science
Languages : en
Pages : 526
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Book Description
This volume presents state-of-the-art research about mineral dust, including results from field campaigns, satellite observations, laboratory studies, computer modelling and theoretical studies. Dust research is a new, dynamic and fast-growing area of science and due to its multiple roles in the Earth system, dust has become a fascinating topic for many scientific disciplines. Aspects of dust research covered in this book reach from timescales of minutes (as with dust devils, cloud processes and radiation) to millennia (as with loess formation and oceanic sediments), making dust both a player and recorder of environmental change. The book is structured in four main parts that explore characteristics of dust, the global dust cycle, impacts of dust on the Earth system, and dust as a climate indicator. The chapters in these parts provide a comprehensive, detailed overview of this highly interdisciplinary subject. The contributions presented here cover dust from source to sink and describe all the processes dust particles undergo while travelling through the atmosphere. Chapters explore how dust is lifted and transported, how it affects radiation, clouds, regional circulations, precipitation and chemical processes in the atmosphere and how it deteriorates air quality. The book explores how dust is removed from the atmosphere by gravitational settling, turbulence or precipitation, how iron contained in dust fertilizes terrestrial and marine ecosystems, and about the role that dust plays in human health. We learn how dust is observed, simulated using computer models and forecast. The book also details the role of dust deposits for climate reconstructions. Scientific observations and results are presented, along with numerous illustrations. This work has an interdisciplinary appeal and will engage scholars in geology, geography, chemistry, meteorology and physics, amongst others with an interest in the Earth system and environmental change. body>
Author: Gerhard Fischer
Publisher: Springer Science & Business Media
ISBN: 3642586465
Category : Science
Languages : en
Pages : 768
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Geology, Structural
Languages : en
Pages : 432
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