The Butte Mining District Montana (Classic Reprint)
Language: English
Published by Forgotten Books, 2024
- Softcover
- New
Seller: Forgotten Books, London, United KingdomForgotten Books
AbeBooks seller since June 2, 2021
Condition: New
£ 13.29
Quantity: Over 20 available
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Print on Demand. This book provides an introduction to the geology, exploration, and exploitation of ore deposits, with special emphasis on how this affects mining. The author begins by examining essential geological principles, covering topics such as rock formation, the location of ore bodies, and the influence of geological processes on ore formation. The book then focuses on the processes involved in finding and extracting ores, from the initial exploration phase, through mine design and operation, to mineral processing and extraction. The unique features of this book include a historical perspective on mining and ore extraction techniques, the latest technological advances in mining, and insights into the environmental impact of mining and the associated social and economic issues. The book is a valuable resource for professionals, researchers, and students in the fields of mining, geology, and environmental science. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. …
Seller Inventory # 9780365924784_0
- Title
- The Butte Mining District Montana (Classic Reprint)
- Author
- Eugene S. Perry
- Publisher
- Forgotten Books
- Publication year
- 2024
- Condition
- New
- Book Type
- print-on-demand item
- Binding
- Paperback
- Language
- English
- ISBN 10
- 0365924784
- ISBN 13
- 9780365924784
- Seller catalogs
- Geology
Although the Butte district, greatest of all copper camps, has produced more than worth of copper, it has also yielded one-fourth of that amount in silver, zinc, gold, and lead. Development in this district began with placer-gold mining in 1864; 20 years later the oxidized silver ores were mined; since 1881 copper has been the chief product.
The ore deposits, in part fissure fillings but mainly replacement veins, are confined to granite and aplite in the Boulder batholith, which was intruded in late Cretaceous or early Tertiary time. Three main systems of fissures - early, intermediate, and late - cut the granite in three directions. The first and second are mineralized; the second and third are conspicuous fault fissures. The copper minerals are chiefly primary chalcocite and bornite, with considerable enargite. Sphalerite, galena, native gold, native silver, and silver-bearing tetrahedrite are other valuable minerals. The ores of the district show a well marked zonal arrangement, copper minerals form a central core; copper and zinc minerals an intermediate zone; and zinc, lead, and manganese minerals a peripheral zone. Oxidized copper, zinc, and lead minerals have always been inconspicuous, but oxidized silver minerals were formerly mined. Superficial alteration has affected the deposits near the surface, resulting in thorough leaching to a depth of 100 to 500 feet (30 to 152 meters) and in the deposition of secondary sooty chalcoc1te for 100 to 500 feet below the leached zone. The main mass of ore extending from a depth of 500 feet to more than 4 000 feet meters) 18 believed to be of primary origin and to have been deposited by ascending magmatic solutions under conditions of intermediate thermal intensity.
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.
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Forgotten Books
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Forgotten Books’ Classic Reprint Series utilizes the latest technology to regenerate facsimiles of historically important writings. Careful attention has been made to accurately preserve the original format of each page whilst digitally enhancing the quality of the aged text.
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TradeSeller's business information
FB &c Ltd
Dalton House, 60 Windsor Avenue
London, United Kingdom SW19 2RR
Forgotten Books publishes hundreds of thousands of rare and classic books.
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.
This text has been digitally restored from a historical edition. Some errors may persist, however we consider it worth publishing due to the work's historical value.
The digital edition of all books may be viewed before purchase if you request a sample.
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