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Author: University of Chicago Dept of Geology Publisher: Wentworth Press ISBN: 9781011144198 Category : History Languages : en Pages : 808
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: University of Chicago Dept of Geology Publisher: Wentworth Press ISBN: 9781011144198 Category : History Languages : en Pages : 808
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Thomas C. Chamberlin Publisher: Forgotten Books ISBN: 9780282901943 Category : Science Languages : en Pages : 844
Book Description
Excerpt from The Journal of Geology, Vol. 21: A Semi-Quarterly Magazine of Geology and Related Sciences; January-December, 1913 The past half-century has been a period of rapid development of mines and mining, both in America and in other countries, and as a consequence, ' the basal facts regarding the occurrence Of ores are now comparatively well understood. The geologic causes for the location Of ore-bodies in certain zones or horizons are in many cases known, and many former theories are generally accepted as facts. The transportation of ores by aqueous solutions, the origin of some of these solutions in cooling igneous magmas, and the secondary enrichment of many ore-bodies through the agency of meteoric waters; such are some of the ideas which have withstood prolonged criticism and have become established tenets Of geologic faith. But beyond basal facts, adduced almost solely from field evidence, our knowledge of the mechanism of ore depositions is somewhat vague and unsatisfactory. Only prolonged investigation along chemical and physico-chemical lines will render possible a reasonably accurate understanding of the complex com position oi ore-bearing solutions, of the reactions of these solutions with the wall rocks, of the causes for the deposition of minerals from them, and of many other problems connected with the depo sition of ores. 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: David Evans Publisher: Routledge ISBN: 1136801502 Category : Reference Languages : en Pages : 579
Book Description
This volume, also available as part of the collection "Geomorphology: Critical Concepts in Geography" constitutes an instant archive of esential benchmark papers and makes available in one place key published material on its area..
Author: University of Chicago Dept of Geology
Author: University of Chicago Dept of Geology
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Author: Thomas C. Chamberlin
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Author: John Michels (Journalist)
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Author: University of Chicago Dept of Geology
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Author: U.S. Coast and Geodetic Survey
Author: David Evans