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| Author | : Derek Victor Ager |
| Publisher | : John Wiley & Sons |
| Total Pages | : 164 |
| Release | : 1981 |
| Genre | : Science |
| ISBN | : |
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 |
| Total Pages | : 164 |
| Release | : 1981 |
| Genre | : Science |
| ISBN | : |
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 | : |
| Total Pages | : 176 |
| Release | : 1993-03-16 |
| Genre | : Science |
| ISBN | : |
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 |
| Total Pages | : 274 |
| Release | : 2012-04-16 |
| Genre | : Nature |
| ISBN | : 0226649377 |
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 |
| Total Pages | : 436 |
| Release | : 2013-06-29 |
| Genre | : Science |
| ISBN | : 3662033801 |
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 |
| Total Pages | : 317 |
| Release | : 2014-06-05 |
| Genre | : Science |
| ISBN | : 1862396280 |
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 | : Jan Zalasiewicz |
| Publisher | : Cambridge University Press |
| Total Pages | : 385 |
| Release | : 2019-03-07 |
| Genre | : Medical |
| ISBN | : 110847523X |
Reviews the evidence underpinning the Anthropocene as a geological epoch written by the Anthropocene Working Group investigating it. The book discusses ongoing changes to the Earth system within the context of deep geological time, allowing a comparison between the global transition taking place today with major transitions in Earth history.
| Author | : Christian Koeberl |
| Publisher | : Geological Society of America |
| Total Pages | : 334 |
| Release | : 2009 |
| Genre | : Science |
| ISBN | : 081372452X |
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 | : Mike R. Leeder |
| Publisher | : John Wiley & Sons |
| Total Pages | : 621 |
| Release | : 2009-04-01 |
| Genre | : Science |
| ISBN | : 1444311409 |
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.
| Author | : Edward C. Harris |
| Publisher | : Elsevier |
| Total Pages | : 185 |
| Release | : 2014-06-28 |
| Genre | : Social Science |
| ISBN | : 1483295850 |
This book is the only text devoted entirely to archaeological stratigraphy, a subject of fundamental importance to most studies in archaeology. The first edition appeared in 1979 as a result of the invention, by the author, of the Harris Matrix--a method for analyzing and presenting the stratigraphic sequences of archaeological sites. The method is now widely used in archaeology all over the world. The opening chapters of this edition discuss the historical development of the ideas of archaeological stratigraphy. The central chapters examine the laws and basic concepts of the subject, and the last few chapters look at methods of recording stratification, constructing stratigraphic sequences, and the analysis of stratification and artifacts. The final chapter, which is followed by a glossary of stratigraphic terms, gives an outline of a modern system for recording stratification on archaeological sites. This book is written in a simple style suitable for the student or amateur. The radical ideas set out should also give the professional archaeologist food for thought. - Covers a basic principle of all archaeological excavations - Provides a data description and analysis tool for all such digs, which is now widely accepted and used - Gives extra information
