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Author: Derek Victor Ager
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 164
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Book Description
Provides a look at the private side of Abraham Lincoln and at the circumstances surrounding his short, but memorable speech at the dedication of the cemetery at the Gettysburg battlefield. Includes text of the speech.
Author: Derek Victor Ager
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 164
Get Book Here
Book Description
Provides a look at the private side of Abraham Lincoln and at the circumstances surrounding his short, but memorable speech at the dedication of the cemetery at the Gettysburg battlefield. Includes text of the speech.
Author: Derek Victor Ager
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 164
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Book Description
Provides a look at the private side of Abraham Lincoln and at the circumstances surrounding his short, but memorable speech at the dedication of the cemetery at the Gettysburg battlefield. Includes text of the speech.
Author: Derek V. Ager
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 176
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Book Description
In the third edition of his thought-provoking book, Professor Derek Ager takes a new look at the nature of the stratigraphical record, emphasizing the remarkable persistence of certain facies, the importance of the huge gaps in the record, and the catastrophic or episodic nature of our record of Earth history. By abandoning the concepts so often found in textbooks, he demonstrates several generalities about the stratigraphical column that will make fascinating reading for all those interested in the Earth's geological history.
Author: Mark E. Patzkowsky
Publisher: University of Chicago Press
ISBN: 0226649377
Category : Nature
Languages : en
Pages : 274
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Book Description
This work weaves important strands of the paleontological literature into a coherent worldview that emphasizes the importance of understanding the geological record.
Author: Andrew D. Miall
Publisher: Springer Science & Business Media
ISBN: 3662033801
Category : Science
Languages : en
Pages : 436
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Book Description
Sequence stratigraphy represents a new paradigm in geology. The principal hypothesis is that stratigraphie successions may be subdivided into discrete sequences bounded by widespread unconformities. There are two parts to this hypothesis. First, it suggests that the driving forces which generate sequences and their bounding unconformities also generate predietable three-dimensional stratigraphies. In re cent years stratigraphie research guided by sequence models has brought about fundamental im provements in our understanding of stratigraphie processes and the controls of basin architecture. Sequence models have provided a powerful framework for mapping and numerieal modeling, enabling the science of stratigraphy to advance with rapid strides. This research has demonstrated the importance of a wide range of processes for the generation of cyclie sequences, including eustasy, tectonics, and orbital forcing of climate change. The main objective of this book is to document the sequence record and to discuss our current state of knowledge about sequence-generating processes.
Author: C.N. Waters
Publisher: Geological Society of London
ISBN: 1862396280
Category : Science
Languages : en
Pages : 317
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Book Description
Humankind has pervasively influenced the Earth’s atmosphere, biosphere, geosphere, hydrosphere and cryosphere, arguably to the point of fashioning a new geological epoch, the Anthropocene. To constrain the Anthropocene as a potential formal unit within the Geological Time Scale, a spectrum of indicators of anthropogenically-induced environmental change is considered, and shown as stratigraphical signals that may be used to characterize an Anthropocene unit, and to recognize its base. This volume describes a range of evidence that may help to define this potential new time unit and details key signatures that could be used in its definition. These signatures include lithostratigraphical (novel deposits, minerals and mineral magnetism), biostratigraphical (macro- and micro-palaeontological successions and human-induced trace fossils) and chemostratigraphical (organic, inorganic and radiogenic signatures in deposits, speleothems and ice and volcanic eruptions). We include, finally, the suggestion that humans have created a further sphere, the technosphere, that drives global change.
Author: Graham P. Weedon
Publisher: Cambridge University Press
ISBN: 1139435175
Category : Science
Languages : en
Pages : 275
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Book Description
Increasingly environmental scientists, palaeoceanographers and geologists are collecting quantitative records of environmental changes (time-series) from sediments, ice cores, cave calcite, corals and trees. This book explains how to analyse these records, using straightforward explanations and diagrams rather than formal mathematical derivations. All the main cyclostratigraphic methods are covered including spectral analysis, cross-spectral analysis, filtering, complex demodulation, wavelet and singular spectrum analysis. Practical problems of time-series analysis, including those of distortions of environmental signals during stratigraphic encoding, are considered in detail. Recent research into various types of tidal and climatic cycles is summarised. The book ends with an extensive reference section, and an appendix listing sources of computer algorithms. This book provides the ideal reference for all those using time-series analysis to study the nature and history of climatic and tidal cycles. It is suitable for senior undergraduate and graduate courses in environmental science, palaeoceanography and geology.
Author: Christian Koeberl
Publisher: Geological Society of America
ISBN: 081372452X
Category : Science
Languages : en
Pages : 334
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Book Description
The Late Eocene and the Eocene-Oligocene (E-O) transition mark the most profound oceanographic and climatic changes of the past 50 million years of Earth history, with cooling beginning in the middle Eocene and culminating in the major earliest Oligocene Oi-1 isotopic event. The Late Eocene is characterized by an accelerated global cooling, with a sharp temperature drop near the E-O boundary, and significant stepwise floral and faunal turnovers. These global climate changes are commonly attributed to the expansion of the Antarctic ice cap following its gradual isolation from other continental masses. However, multiple extraterrestrial bolide impacts, possibly related to a comet shower that lasted more than 2 million years, may have played an important role in deteriorating the global climate at that time. This book provides an up-to-date review of what happened on Earth at the end of the Eocene Epoch.
Author: Amos Salvador
Publisher: Geological Society of America
ISBN: 9780813774015
Category : Science
Languages : en
Pages : 248
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Book Description
Author: Mike R. Leeder
Publisher: John Wiley & Sons
ISBN: 1444311409
Category : Science
Languages : en
Pages : 621
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Book Description
Sedimentology is a core discipline of earth and environmental sciences. It enquires the origins, transport and deposition of mineral sediment on the Earth's surface. The subject is a link between positive effects arising from the building of relief by tectonics and the negative action of denudation in drainage catchments and tectonic subsidence in sedimentary basins. The author addresses the principles of the subject, emphasising the advantages of a general science approach and the importance of understanding modern processes. Sedimentology and Sedimentary Basins is not an encyclopaedia, but attempts to stimulate interdisciplinary thought across the whole subject area and related disciplines. The book has been designed to meet the needs of earth and environmental science undergraduates.
