Download or read book The Secondary Enrichment of Silver Ores written by Harold Caswell Cooke and published by . This book was released on 1913 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Secondary Enrichment of Silver Ores written by Harold Caswell Cooke and published by . This book was released on 1913 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Enrichment of Ore Deposits written by William Harvey Emmons and published by . This book was released on 1917 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The University of Chicago The Secondary Enrichment of Silver Ores A Dissertation Submitted for the Degree of Doctor of Philosophy by Harold Caswell Cooke written by Harold Caswell Cooke and published by . This book was released on 1913 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Microscopic Study of the Silver Ores and Their Associated Minerals written by Frank Nelson Guild and published by . This book was released on 1917 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Enrichment of Ore Deposits written by William Harvey Emmons and published by . This book was released on 1917 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silver Ores written by Harry Brenan Cronshaw and published by . This book was released on 1921 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Microscopic Study of the Silver Ores and Their Associated Minerals written by Frank Nelson Guild and published by Palala Press. This book was released on 2018-02-14 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Enrichment of Sulphide Ores written by William Harvey Emmons and published by . This book was released on 1913 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microscopic Study of the Silver Ores of the San Xavier District Mexico written by Harold Fredric Lynn and published by . This book was released on 1925 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mineral Deposits written by Waldemar Lindgren and published by Theclassics.Us. This book was released on 2013-09 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 edition. Excerpt: ...with precious metals from the upper parts of the veins. It should not be overlooked that ore-shoots of primary origin are common enough. Take, for instance, the Cripple Creek gold ores, in which evidence of enrichment is conspicuously lacking; these primary shoots are usually of a markedly irregular form; many of the smaller ore-bodies are likely to follow intersections of fissures. In depth the rich shoots show a tendency to contract, to feather out, or simply to become impoverished. In many cases zinc blende in a quartz gangue appears in depth. On the other hand sulphide enrichment is conspicuously marked, especially in silver veins. In gold-bearing veins the enrichment in gold is likely to be localized just below the zone of oxidation. The secondary silver minerals are native silver, argentite, ruby silver, stcphanite, and polybasite--that is, the same minerals (except the native silver) as occur in primary ore. As a consequence it is often exceedingly difficult to distinguish primary ore and enriched ore, and when in addition to this we recognize that the later effects of primary mineralization may sometimes closely simulate the products of descending surface waters, the difficulties of correct interpretation will be fully realized. The distinction is made easier when the secondary sulphides form a distinct zone immediately below the oxidized part of the lode. The conditions for the deposition of gold and silver are apparently much more favorable near the surface than at greater depths; on the other hand, deposition took place rapidly and the gold and silver contents of the solutions were doubtless exhausted before they reached the actual surface. Types of Deposits.--The merging of the various types makes it difficult to establish a...
Download or read book The Lixiviation of Silver ores with Hyposulpite Solutions written by Carl August Stetefeldt and published by . This book was released on 1888 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Professional Paper United States Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1917 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Professional Paper written by and published by . This book was released on 1913 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Geological Survey Professional Paper written by and published by . This book was released on 1963 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic Geology of Gilpin County and Adjacent Parts of Clear Creek and Boulder Counties Colorado written by Edson Sunderland Bastin and published by . This book was released on 1917 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mining Magazine written by and published by . This book was released on 1920 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
