The Last Interglacial-Glacial Transition in North America

The Last Interglacial-Glacial Transition in North America PDF

Author: Peter U. Clark

Publisher: Geological Society of America

Published: 1992-01-01

Total Pages: 326

ISBN-13: 0813722705

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Focuses on the last time glaciers spread across the continent, using the records of former ice sheets, glaciers, and pluvial lakes to understand the response of North American ice sheets and glaciers to the climate change that ended the last (before ours) interglacial period. The 21 papers, most fro

Glacial Isostasy, Sea-Level and Mantle Rheology

Glacial Isostasy, Sea-Level and Mantle Rheology PDF

Author: R. Sabadini

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 705

ISBN-13: 9401133743

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by K. Lambeck, R. Sabadini and E. B08Chi Viscosity is one of the important material properties of the Earth, controlling tectonic and dynamic processes such as mantle convection, isostasy, and glacial rebound. Yet it remains a poorly resolved parameter and basic questions such as whether the planet's response to loading is linear or non-linear, or what are its depth and lateral variations remain uncertain. Part of the answer to such questions lies in laboratory observations of the rheology of terrestrial materials. But the extrapolation of such measurements from the laboratory environment to the geological environment is a hazardous and vexing undertaking, for neither the time scales nor the strain rates characterizing the geological processes can be reproduced in the laboratory. General rules for this extrapolation are that if deformation is observed in the laboratory at a particular temperature, deformation in geological environments will occur at a much reduced temperature, and that if at laboratory strain rates a particular deformation mechanism dominates over all others, the relative importance of possible mechanisms may be quite different at the geologically encountered strain rates. Hence experimental results are little more than guidelines as to how the Earth may respond to forces on long time scales.

Start of a Glacial

Start of a Glacial PDF

Author: George J. Kukla

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 414

ISBN-13: 3642769543

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Some 115 thousand years ago the world as we know it today shifted into a much colder glacial mode which culminated with huge ice sheets reaching as far south as New York, Berlin and St. Petersburg. The numerical climate models, used to predict the next century climate, were as yet unable to explain what happened. The reader of the book gains a detailed picture of what is known on the most important episodes of the past climate history, what to expect during the transition into a glacial climate mode, and which aspects and elements of the climate system seem mostsusceptible to change. The climate modelers will realize that the long term history of natural climate variations may hold important clues to the mechanism of climate changes which should be taken in account if the near future CO2 rich climate have to be predicted with any degree ofreliability.

Quaternary Environments

Quaternary Environments PDF

Author: J T Andrews

Publisher: Taylor & Francis

Published: 2024-06-28

Total Pages: 803

ISBN-13: 1040087361

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First published in 1985, Quaternary Environments represents the culmination of Quaternary research in the region of Baffin Island, Baffin Bay and West Greenland over a period of twenty years and it will serve as a timely and complementary balance to the paleo- oceanographic studies in the NE North Atlantic. The region of Baffin Island, Baffin Bay and West Greenland is probably the best place in the world to examine the interactions between ice, land and oceans on timescales of a few hundred to many thousands of years. Two introductory chapters outline the history of research and the physical background. In Part II the evidence for glacial erosion and deposition over the eastern Canadian Arctic is examined and the history of the Baffin Island continental shelf is described. Part III deals with the paleo- oceanography of Baffin Bay and the Labrador Sea through an examination of deep-sea cores dated by several different methods. In Part IV there is a comprehensive account of the stratigraphy of Baffin Island, Bylot Island, and West Greenland, from the Pliocene to the late Wisconsin. Part V examines the climatic effects of the past 10,000 years, considering evidence from pollen analysis, glacier fluctuations, changes of sea level and the response of early (Eskimo) man. This important volume will interest all quaternary scientists, especially those in glaciology, glacial geology, marine geology, and geomorphology.

Late Quaternary Palaeoceanography of the North Atlantic Margins

Late Quaternary Palaeoceanography of the North Atlantic Margins PDF

Author: John T. Andrews

Publisher: Geological Society of London

Published: 1996

Total Pages: 392

ISBN-13: 9781897799611

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The focus of this book is on oceanic climate change during the last deglaciation period and the high temporal resolution that can be obtained from sediment records at continental margin sites. The book draws together papers from the north-eastern North American continental margin with those from the north-west European Arctic and the Arctic and North Atlantic Oceans.

Origins

Origins PDF

Author:

Publisher: University of Oklahoma Press

Published: 2001

Total Pages: 372

ISBN-13: 9780806133591

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Glorious panoramic photography by the author, a specialist in interpretive landscape, reveals the physical legacy of the Earth's distant past. This exceptional book celebrates the inevitability of global change and highlights our need as human beings to recognize and adjust to it. Color and b&w illustrations.