Absolute Age Determination
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Absolute Age Determination
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Author : Mebus A. Geyh
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Absolute Age Determination written by Mebus A. Geyh and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
With the growing recognition during the last two centuries that the Earth has an immense age and processes over long periods of time have changed the morphology and composition of the Earth's crust, geologists have become increasingly interested in determination of absolute ages. A rela tive geochronology was established on the basis of the lithostratigraphic and biostratigraphic principles developed during the last century. With the discovery of radioactivity, the basis for a new geoscientific discipline - geochronology - was established (Rutherford 1906). It is the study of geological time, based mainly on the time signatures provided by the isotopic composition in geologic materials. The isotopic signature in a rock yields more information than that provided by the geochemical signature alone because it reflects the origin and history of the element in the rock. The aim of geochronology is to calibrate and standardize chronostrati graphic scales, to develop geological time scales that have a sensitive or at least useful resolution in order to place the geological events in the correct chronological order, and to assign their proper time spans. In practice, the application of geochronology is much wider because the data in the "natural archives" often provide information on the origin, genesis, and history of the materials. This, of course, requires an understanding of the geochemical behavior of the substances involved.
Bulletin Of The Commission On The Determination Of The Absolute Age Of Geological Formations
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Author :
language : en
Publisher:
Release Date : 1960
Bulletin Of The Commission On The Determination Of The Absolute Age Of Geological Formations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with Earth categories.
Absolute Age Determination
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Author : Mebus A. Geyh
language : en
Publisher: Springer
Release Date : 2012-07-05
Absolute Age Determination written by Mebus A. Geyh and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-07-05 with Science categories.
With the growing recognition during the last two centuries that the Earth has an immense age and processes over long periods of time have changed the morphology and composition of the Earth's crust, geologists have become increasingly interested in determination of absolute ages. A rela tive geochronology was established on the basis of the lithostratigraphic and biostratigraphic principles developed during the last century. With the discovery of radioactivity, the basis for a new geoscientific discipline - geochronology - was established (Rutherford 1906). It is the study of geological time, based mainly on the time signatures provided by the isotopic composition in geologic materials. The isotopic signature in a rock yields more information than that provided by the geochemical signature alone because it reflects the origin and history of the element in the rock. The aim of geochronology is to calibrate and standardize chronostrati graphic scales, to develop geological time scales that have a sensitive or at least useful resolution in order to place the geological events in the correct chronological order, and to assign their proper time spans. In practice, the application of geochronology is much wider because the data in the "natural archives" often provide information on the origin, genesis, and history of the materials. This, of course, requires an understanding of the geochemical behavior of the substances involved.
Encyclopedia Of Lakes And Reservoirs
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Author : Lars Bengtsson
language : en
Publisher: Springer
Release Date : 2012-06-25
Encyclopedia Of Lakes And Reservoirs written by Lars Bengtsson and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-06-25 with Science categories.
Lakes and reservoirs hold about 90% of the world's surface fresh water, but overuse, water withdrawal and pollution of these bodies puts some one billion people at risk. The Encyclopedia of Lakes and Reservoirs reviews the physical, chemical and ecological characteristics of lakes and reservoirs, and describes their uses and environmental state trends in different parts of the world. Superbly illustrated throughout, it includes some 200 entries in a range of topics, including acidification, artificialisation, canals, climate change effects, dams, dew ponds, drainage, eutrofication, evaporation, fisheries, hydro-electric power, nutrients, organic pollution, paleolimnology, reservoir capacities and depths, sedimentation, water resources and more.
Proceedings
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Author :
language : en
Publisher:
Release Date : 1976
Proceedings written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Geothermal engineering categories.
Geophysical Abstracts 188 January March 1962
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Author :
language : en
Publisher:
Release Date : 1962
Geophysical Abstracts 188 January March 1962 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Earth sciences categories.
Geophysical Abstracts 191 October December 1962
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Author :
language : en
Publisher:
Release Date : 1962
Geophysical Abstracts 191 October December 1962 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Earth sciences categories.
Geophysical Abstracts
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Author : Geological Survey (U.S.)
language : en
Publisher:
Release Date : 1967
Geophysical Abstracts written by Geological Survey (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Geophysics categories.
Paleolimnology
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Author : Andrew S. Cohen
language : en
Publisher: Oxford University Press, USA
Release Date : 2003
Paleolimnology written by Andrew S. Cohen and has been published by Oxford University Press, USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Science categories.
This text, written by a leading researcher in the field, describes the origin and formation of lakes in order to give context to the question of how lacustrine deposits form. It explains the process of sedimentation in lakes and the chemistry of those deposits and describes how the age of lake deposits are determined. Additionally, this book shows how different groups of fossils are used in interpreting the paleontological record of lakes. In order to illustrate the more synthetic approaches to interpreting the history of lakes, the author also discusses such special topics as lake-level history, lake evolution, and the impact of environmental change on lakes.
Izvestiya Akademii Nauk Sssr
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Author : Akademii︠a︡ nauk SSSR.
language : en
Publisher:
Release Date : 1962
Izvestiya Akademii Nauk Sssr written by Akademii︠a︡ nauk SSSR. and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Geology categories.