Download or read book The Examination of Mines and Prospects written by C. Guther and published by CreateSpace. This book was released on 2015-01-09 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mining historian Kerby Jackson introduces us to a classic mining publication on the evaluation and examination of mines and prospects by C.G. Guthrie. First published in 1912, it has been unavailable for over a century and sheds important light on how to examine and evaluate hardrock mines, prospects and lode mining claims. Sections include Mining Examinations, Structural Geology, Structural Features of Ore Deposits, Primary Ores and their Distribution, Types of Primary Ore Deposits, Primary Ore Shoots, The Primary Alteration of Wall Rocks, Alterations by Surface Agencies, Residual Ores and their Distribution, Secondary Ores and Ore Shoots and Vein Outcrops. This hard to find information is a must for those who are interested in owning a mine or who already own a lode mining claim and wish to succeed at quartz mining. Note: This edition is a perfect facsimile of the original edition and is not set in a modern typeface. As such, some type characters and images might suffer from slight imperfections or minor shadows in the page background.
Download or read book The Examination of Prospects written by Charles Godfrey Gunther and published by . This book was released on 1932 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Examination of Prospects a Mining Geology written by C. Godfrey Gunther and published by Createspace Independent Publishing Platform. This book was released on 2016-06-21 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Examination of Prospects, a Mining Geology by C. Godfrey Gunther. This book is a reproduction of the original book published in 1912 and may have some imperfections such as marks or hand-written notes.
Download or read book The Examination of Prospects written by Charles Godfrey Gunther and published by Forgotten Books. This book was released on 2015-06-28 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Examination of Prospects: A Mining Geology The purpose of this book is to present the practical side of economic geology concisely and in convenient form; established facts and the applications of accepted views are emphasized; theoretical discussions and questions of genesis are avoided. Coal, iron, and placer deposits are omitted; they arc subjects of specialized study that are fully and concisely treated in other works. The reader is assumed to possess a knowledge of mineralogy, petrography, and of elementary geology. The arrangement adopted Is based on Kemp's theory of magmatic waters, Lindgren's conclusions on hydrothermal and secondary alterations, and on the theories of secondary enrichment enunciated by Emmons and Weed. No general classification of ore-deposits is attempted, nor is any attempt made to fill by hypothesis the wide gaps, nor to explain the apparent contradictions, that rank economic geology among the most inexact of sciences. The present knowledge of the subject is too incomplete to warrant such broad generalizations. The present situation in mining in the United States may be summed up in the statement that the demand for good properties greatly exceeds the supply. While mines of the first rank will undoubtedly be discovered from time to time, it is probably true that a great proportion of deposits having outcrops of commercial grade or of evident promise have been recognized and explored. A review of mining conditions over long periods shows that the rich discoveries belong to pioneer days, and that as time goes on the more important developments are the result of lower working costs, improved metallurgical processes, and of an increasing knowledge of economic geology. 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.
Download or read book Critical Mineral Resources of the United States written by K. J. Schulz and published by Geological Survey. This book was released on 2017 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the importance and dependence of specific mineral commodities increase, so does concern about their supply. The United States is currently 100 percent reliant on foreign sources for 20 mineral commodities and imports the majority of its supply of more than 50 mineral commodities. Mineral commodities that have important uses and face potential supply disruption are critical to American economic and national security. However, a mineral commodity's importance and the nature of its supply chain can change with time; a mineral commodity that may not have been considered critical 25 years ago may be critical today, and one considered critical today may not be so in the future. The U.S. Geological Survey has produced this volume to describe a select group of mineral commodities currently critical to our economy and security. For each mineral commodity covered, the authors provide a comprehensive look at (1) the commodity's use; (2) the geology and global distribution of the mineral deposit types that account for the present and possible future supply of the commodity; (3) the current status of production, reserves, and resources in the United States and globally; and (4) environmental considerations related to the commodity's production from different types of mineral deposits. The volume describes U.S. critical mineral resources in a global context, for no country can be self-sufficient for all its mineral commodity needs, and the United States will always rely on global mineral commodity supply chains. This volume provides the scientific understanding of critical mineral resources required for informed decisionmaking by those responsible for ensuring that the United States has a secure and sustainable supply of mineral commodities.
Download or read book The Examination of Prospects written by Charles Godfrey Gunther and published by Forgotten Books. This book was released on 2018-03-21 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Examination of Prospects: A Mining Geology The purpose of this book is to present the practical side of economic geology concisely and in convenient form; established facts and the applications of accepted views are emphasized; theoretical discussions and questions of genesis are avoided. Coal, iron, and placer deposits are omitted; they are subjects of specialized study that are fully and concisely treated in other works. The reader is assumed to possess a knowledge of mineral ogy, petrography, and of elementary geology. The arrangement adopted is based on Kemp's theory of mag matic waters, Lindgren's conclusions on hydrothermal and second ary alterations, and on the theories of secondary enrichment enunciated by Emmons and Weed. 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.
Download or read book The Examination of Prospects a Mining Geology 2 Ed written by C.G. Gunther and published by . This book was released on 1932 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Placer Examination Principles and Practice written by John H. Wells and published by . This book was released on 1969 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Essentials of Mineral Exploration and Evaluation written by S. M. Gandhi and published by Elsevier. This book was released on 2016-05-10 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essentials of Mineral Exploration and Evaluation offers a thorough overview of methods used in mineral exploration campaigns, evaluation, reporting and economic assessment processes. Fully illustrated to cover the state-of-the-art exploration techniques and evaluation of mineral assets being practiced globally, this up-to-date reference offers balanced coverage of the latest knowledge and current global trends in successful mineral exploration and evaluation. From mineral deposits, to remote sensing, to sampling and analysis, Essentials of Mineral Exploration and Evaluation offers an extensive look at this rapidly changing field. Covers the complete spectrum of all aspects of ore deposits and mining them, providing a "one-stop shop" for experts and students Presents the most up-to-date information on developments and methods in all areas of mineral exploration Includes chapters on application of GIS, statistics, and geostatistics in mineral exploration and evaluation Includes case studies to enhance practical application of concepts
Download or read book Annual Assessment Work on Mining Claims written by United States. Congress. House. Committee on Mines and Mining and published by . This book was released on 1919 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Assessment Work on Mining Claims written by United States. Congress. House. Committee on Mines and Mining and published by . This book was released on 1919 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Examination and Valuation of Mineral Property written by Charles Homer Baxter and published by . This book was released on 1957 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mining and Scientific Press written by and published by . This book was released on 1904 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prospects for Mineral Resource Assessments on Public Lands written by Simon M. Cargill and published by . This book was released on 1986 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shifting Livelihoods written by Daniel Tubb and published by University of Washington Press. This book was released on 2020-06-30 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: People employ various methods to extract gold in the rainforests of the Chocó, in northwest Colombia: Rural Afro-Colombian artisanal miners work hillsides with hand tools or dredge mud from river bottoms. Migrant miners level the landscape with excavators, then trap gold with mercury. Canadian mining companies prospect for open-pit mega-mines. Drug traffickers launder cocaine profits by smuggling gold into Colombia and claiming it came from fictitious small-scale mines. Through an ethnography of gold that examines the movement of people, commodities, and capital, Shifting Livelihoods investigates how resource extraction reshapes a place. In the Chocó, gold enables forms of “shift” (rebusque)—a metaphor for the fluid livelihood strategy adopted by forest dwellers and migrant gold miners alike as they seek informal work amid a drug war. Mining’s effects on rural people, corporations, and politics are on view in this fine-grained account of daily life in a regional economy dominated by gold and cocaine.
Download or read book Prospecting for Minerals written by S. Herbert Cox and published by Trieste Publishing. This book was released on 2017-09-16 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trieste Publishing has a massive catalogue of classic book titles. Our aim is to provide readers with the highest quality reproductions of fiction and non-fiction literature that has stood the test of time. The many thousands of books in our collection have been sourced from libraries and private collections around the world.The titles that Trieste Publishing has chosen to be part of the collection have been scanned to simulate the original. Our readers see the books the same way that their first readers did decades or a hundred or more years ago. Books from that period are often spoiled by imperfections that did not exist in the original. Imperfections could be in the form of blurred text, photographs, or missing pages. It is highly unlikely that this would occur with one of our books. Our extensive quality control ensures that the readers of Trieste Publishing's books will be delighted with their purchase. Our staff has thoroughly reviewed every page of all the books in the collection, repairing, or if necessary, rejecting titles that are not of the highest quality. This process ensures that the reader of one of Trieste Publishing's titles receives a volume that faithfully reproduces the original, and to the maximum degree possible, gives them the experience of owning the original work.We pride ourselves on not only creating a pathway to an extensive reservoir of books of the finest quality, but also providing value to every one of our readers. Generally, Trieste books are purchased singly - on demand, however they may also be purchased in bulk. Readers interested in bulk purchases are invited to contact us directly to enquire about our tailored bulk rates.
