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 Placer Examination Principles and Practice written by John H. Wells and published by . This book was released on 2013-05 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Placer Examination Principles and Practices" is a timeless classic published originally by the US Bureau of Land Management as Techniacal Bulletin 4. This classic text covers the examination of all types of Placer Deposits in order to determine the viability of mining them. Some of the things covered are the Geology, Types of Placer Deposits, Sampling Methods from panning up to using bulldozers, Equipment including Exploration and Drilling equipment, Assaying Placers and more. Now back in Print by Miningbooks.com
Download or read book The Examination of Placer Deposits written by Thomas A. Graves and published by . This book was released on 1939 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of the Tozimoran Creek Tin Placer Deposits Fort Gibbon District Alaska written by Bruce I. Thomas and published by . This book was released on 1948 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Placer Examination written by John H. Wells and published by . This book was released on 1989 with total page 246 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 1973 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of the Morelock Creek Tin Placer Deposits Fort Gibbon District Alaska written by Bruce I. Thomas and published by . This book was released on 1948 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Potato Mountain Tin Placer Deposits Seward Peninsula Northwestern Alaska written by Harold E. Heide and published by . This book was released on 1949 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Distribution of Placer Gold in the Sixes River Southwestern Oregon written by Sam Boggs and published by . This book was released on 1970 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Gold in Placer Deposits written by Warren E. Yeend and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sampling and Testing of a Gold scheelite Placer Deposit in the Mojave Desert Kern and San Bernardino Counties Calif written by Harold W. C. Prommel and published by . This book was released on 1937 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gold in Placer Deposits written by Warren E. Yeend and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mining and Engineering World written by and published by . This book was released on 1905 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Proceedings of the Colorado Scientific Society written by Colorado Scientific Society and published by . This book was released on 1896 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Placer Gold Deposits of the Eagle Trough Upper Yukon River Region Alaska written by James C. Barker and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
