The Stratigraphy of the Ordovico-Silurian Boundary in Northeastern Illinois PDF Download
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Author: Arthur Jackson Ellis
Publisher:
ISBN:
Category : Geology, Stratigraphic
Languages : en
Pages : 114
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Book Description
Author: Arthur Jackson Ellis
Publisher:
ISBN:
Category : Geology, Stratigraphic
Languages : en
Pages : 114
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Book Description
Author: Arthur Jackson Ellis
Publisher: Forgotten Books
ISBN: 9780331270891
Category : Science
Languages : en
Pages : 124
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Book Description
Excerpt from The Stratigraphy of the Ordovico-Silurian Boundary in Northeastern Illinois Oswego Localities Yorkville Localities Minooka Localities Sugar Grove locality Kingston Locality. Chemmung Localities. Discussion of the stratigraphy of the area. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Illinois State Geological Survey
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 64
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Book Description
Author: Thomas Leland Chamberlin
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 72
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Book Description
Author: Harold B. Willman
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 60
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Book Description
Author: Robert J. Krumm
Publisher:
ISBN:
Category : Cartography
Languages : en
Pages : 330
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Book Description
Author: Thomas Charles Buschbach
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 216
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Book Description
In this report gross lithologic characteristics and facies variations of the subsurface Cambrian and Ordovician formations of northeastern Illinois are considered. Distinguishing criteria which permit more uniform recognition and separation of the formations are evaluated. Northeastern Illinois is the most densely populated and heavily industrialized portion of the state. The deeper bedrock formations are of major interest as ground water sources and as reservoirs for storage of natural gas in this region. Several hundreds of deep wells have been drilled to furnish water for municipalities and industrial organizations. Although northeastern Illinois is in a favorable position for development of ground water supplies, the rapid expansion of population and industrialization of the region has caused a steady decline in artesian pressure of water from the deep formations ... There is need for additional structures suitable for underground gas storage. Precise determination of the stratigraphic sequence is required for evaluation of ground water productivity and recharge problems. The correct anticipation of many engineering problems, such as water well drilling and completion, casing and pump setting, and caving zones is also based on reliable estimates of stratigraphic positions and an understanding of the types of lithologic variation which are likely to be encountered.
Author: James Elvin Conkin
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 96
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Author:
Publisher:
ISBN:
Category : Engineering geology
Languages : en
Pages : 69
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Book Description
Author: D.A.T. Harper
Publisher: Geological Society of London
ISBN: 1862393737
Category : Science
Languages : en
Pages : 485
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Book Description
The Early Palaeozoic was a critical interval in the evolution of marine life on our planet. Through a window of some 120 million years, the Cambrian Explosion, Great Ordovician Biodiversification Event, End Ordovician Extinction and the subsequent Silurian Recovery established a steep trajectory of increasing marine biodiversity that started in the Late Proterozoic and continued into the Devonian. Biogeography is a key property of virtually all organisms; their distributional ranges, mapped out on a mosaic of changing palaeogeography, have played important roles in modulating the diversity and evolution of marine life. This Memoir first introduces the content, some of the concepts involved in describing and interpreting palaeobiogeography, and the changing Early Palaeozoic geography is illustrated through a series of time slices. The subsequent 26 chapters, compiled by some 130 authors from over 20 countries, describe and analyse distributional and in many cases diversity data for all the major biotic groups plotted on current palaeogeographic maps. Nearly a quarter of a century after the publication of the ‘Green Book’ (Geological Society, London, Memoir12, edited by McKerrow and Scotese), improved stratigraphic and taxonomic data together with more accurate, digitized palaeogeographic maps, have confirmed the central role of palaeobiogeography in understanding the evolution of Early Palaeozoic ecosystems and their biotas.
