Author : Derek Victor Ager
Publisher : John Wiley & Sons
Page : 164 pages
File Size : 19,31 MB
Release : 1981
Category : 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
Page : 164 pages
File Size : 20,87 MB
Release : 1981
Category : 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 :
Page : 176 pages
File Size : 42,67 MB
Release : 1993-03-16
Category : 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
Page : 274 pages
File Size : 22,61 MB
Release : 2012-04-16
Category : 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 : Alessandro Montanari
Publisher : Springer
Page : 388 pages
File Size : 12,15 MB
Release : 2006-04-10
Category : Science
ISBN : 3540483667
This book provides a general introduction to impact stratigraphy, with emphasis on the recognition of distal impact ejecta in the field, by focusing on the impactoclastic layers of the Umbria-Marche sequence in Central Italy, with an almost perfect stratigraphic record over the last 200 Million years. A general introduction to impact cratering and a discussion of distal ejecta and impact layers around the world is followed by a detailed description of the record of the impact of extraterrestrial bodies in sediments of the Umbria-Marche Apennines. The volume is of interest to a diverse audience in the geological and planetary sciences, ranging from (upper) undergraduate to research level. This book can also be used by students and researchers as a field guide to some of the most important Italian impact layers.
Author : Andrew D. Miall
Publisher : Springer Science & Business Media
Page : 436 pages
File Size : 38,45 MB
Release : 2013-06-29
Category : 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
Page : 317 pages
File Size : 39,95 MB
Release : 2014-06-05
Category : 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
Page : 385 pages
File Size : 24,5 MB
Release : 2019-03-07
Category : 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 : Mike R. Leeder
Publisher : John Wiley & Sons
Page : 621 pages
File Size : 10,93 MB
Release : 2009-04-01
Category : 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 : Christian Koeberl
Publisher : Geological Society of America
Page : 334 pages
File Size : 48,49 MB
Release : 2009
Category : 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.
