Paleoclimatic Reconstructions from Owens Lake Core OL-92, Southeastern California PDF Download
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Author: Kirsten Margaret Menking
Publisher:
ISBN:
Category : Paleoclimatology
Languages : en
Pages : 420
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Book Description
In 1992, the U.S. Geological Survey cored Owens Lake to obtain a continuous paleoclimate record for the Sierra Nevada region. Owens Lake heads a chain of closed-basin lakes which are separated by a series of bedrock sills, received their water primarily from Sierra Nevadan precipitation, and overflowed during wet periods. The core records the histories of cyclic glaciation of the Sierra Nevada and water-balance of Owens Lake over the past 800 kyrs. A variety of paleoclimatic proxies have been studied, details of which may be found in Smith and Bischoff (1993). In this thesis, I report the results and interpretations of 1) grain-size and clay-mineralogical analyses performed on 3.5-m-long channel samples (%7500 years of sedimentation per sample) and point samples, 2) grain size, carbonate content, and oxygen isotopic measurements on 70-cm-long channel samples (%1500 years), and 3) a water-balance model used to infer the magnitude of runoff and evaporation changes necessary to fill the lakes in the Owens Lake system, and to determine the response time of the lake chain to climatic perturbations.
Author: Kirsten Margaret Menking
Publisher:
ISBN:
Category : Paleoclimatology
Languages : en
Pages : 420
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Book Description
In 1992, the U.S. Geological Survey cored Owens Lake to obtain a continuous paleoclimate record for the Sierra Nevada region. Owens Lake heads a chain of closed-basin lakes which are separated by a series of bedrock sills, received their water primarily from Sierra Nevadan precipitation, and overflowed during wet periods. The core records the histories of cyclic glaciation of the Sierra Nevada and water-balance of Owens Lake over the past 800 kyrs. A variety of paleoclimatic proxies have been studied, details of which may be found in Smith and Bischoff (1993). In this thesis, I report the results and interpretations of 1) grain-size and clay-mineralogical analyses performed on 3.5-m-long channel samples (%7500 years of sedimentation per sample) and point samples, 2) grain size, carbonate content, and oxygen isotopic measurements on 70-cm-long channel samples (%1500 years), and 3) a water-balance model used to infer the magnitude of runoff and evaporation changes necessary to fill the lakes in the Owens Lake system, and to determine the response time of the lake chain to climatic perturbations.
Author: George I. Smith
Publisher: Geological Society of America
ISBN: 0813723175
Category : Science
Languages : en
Pages : 175
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Book Description
Author: George Irving Smith
Publisher:
ISBN:
Category : Drill cores
Languages : en
Pages : 460
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Book Description
Author:
Publisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 186
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Book Description
Author: Yehouda Enzel
Publisher: Geological Society of America
ISBN: 9780813723686
Category : Science
Languages : en
Pages : 268
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Book Description
Author: E. F. Stoermer
Publisher: Cambridge University Press
ISBN: 9780521004121
Category : Science
Languages : en
Pages : 488
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Book Description
Timely synopsis of applications in environment and industry using ubiquitous microscopic algae.
Author: David S. G. Thomas
Publisher: John Wiley & Sons
ISBN: 0470519096
Category : Science
Languages : en
Pages : 658
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Book Description
The new edition of Arid Zone Geomorphology aims to encapsulate the advances that have been made in recent years in the investigation and explanation of landforms and geomorphological processes in drylands. Building on the success of the previous two editions, the Third Edition has been completely revised and updated to reflect the latest developments in the field. Whilst this latest edition will remain a comprehensive reference to the subject, the book has been restructured to include regional case studies throughout to enhance student understanding and is clearly defined into five distinct sections; Firstly, the book introduces the reader to Large Scale Controls and Variability in Drylands and then moves on to consider Surface Processes and Characteristics; The Work of Water, The Work of the Wind. The book concludes with a section on Living with Dryland Geomorphology that includes a chapter on geomorphological hazards and the human impact on these environments. Once again, recognised world experts in the field have been invited to contribute chapters in order to present a comprehensive and up-to-date overview of current knowledge about the processes shaping the landscape of deserts and arid regions. In order to broaden the appeal of the Third Edition, the book has been reduced in extent by 100 pages and the Regional chapters have been omitted in favour of the inclusion of key regional case studies throughout the book. The Editor is also considering the inclusion of a supplementary website that could include further images, problems and case studies.
Author: Lloyd D. Keigwin
Publisher: American Geophysical Union
ISBN: 087590095X
Category : Science
Languages : en
Pages : 394
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Book Description
Contributors describe the current understanding of abrupt climate variations that have occurred at millennial to submillennial time scales, events now recognized as characteristics of the global climate during the last glaciation. Subjects covered include analysis of modern climate and ocean dynamics, paleoclimate reconstructions derived from the marine, terrestrial and ice core records, and paleoclimate modeling studies. The breadth of global paleoclimate knowledge presented here provides information required to answer many questions and provides a road map to address remaining problems. Most material is from a June 1998 conference. Lacks a subject index. Annotation copyrighted by Book News, Inc., Portland, OR.
Author: Scott W. Starratt
Publisher: Geological Society of America
ISBN: 0813725364
Category : Science
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 370
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Book Description
