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Author: Josiah Edward Spurr
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 244
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Author: Josiah Edward Spurr
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 244
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Book Description
Author: Josiah Edward Spurr
Publisher:
ISBN:
Category : Ores
Languages : en
Pages : 174
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Author: Josiah Edward Spurr
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Josiah Edward Spurr
Publisher: Forgotten Books
ISBN: 9781528269742
Category : Science
Languages : en
Pages : 220
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Book Description
Excerpt from Ore Deposits of the Silver Peak Quadrangle, Nevada A special type Of auriferous deposits in the Mineral Ridge district is represented by the Great Gulch mine. This is a deposit of auriferous arsenopyrite, which is believed to be similar in age and origin to the subsequent ores of the previously described gold mines. On the margins of the auriferous quartz district Of Mineral Ridge are a number of mines and prospects containing more silver than gold. The general geology is like that Of the gold-bearing ores. Alaskite and quartz lenses are intrusive into metamorphosed sediments and are accompanied by greenstone dikes. The ore, how ever, is subsequent and has formed along cracks in the primary quartz. The whole history indicated is analogous to those auriferous quartz mines of the Mineral Ridge district which show notable subsequent mineralization, although the char acter of the ore in the silver mines is somewhat different, in that more silver and copper in proportion to the gold are present. Another type of silver-bearing veins has a gangue of contemporaneous quartz, and has formed by replacement of dolomite near the edge of the auriferous quartz district. 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: JOSIAH EDWARD. SPURR
Publisher:
ISBN: 9781033195239
Category :
Languages : en
Pages : 0
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Author: Josiah Edward Spurr
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Henry Gardiner Ferguson
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 242
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Author: Josiah Edward Spurr
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 1906
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Author: Geological Survey (U S )
Publisher: Legare Street Press
ISBN: 9781021640574
Category : History
Languages : en
Pages : 0
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Book Description
This issue of the Bulletin of the United States Geological Survey provides a detailed overview of the geology and mineral resources of the Silver Peak quadrangle in Nevada. It includes descriptions of rock formations, mineral deposits, and geologic structures, as well as maps, sections, and photographs. A valuable resource for geologists, miners, and anyone interested in the geology of the American West. 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 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. 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:
Publisher: NV Bureau of Mines & Geology
ISBN:
Category :
Languages : en
Pages : 56
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