Download or read book Mineralogy of the Butte District Montana written by Montana Bureau of Mines and Geology and published by . This book was released on 1964 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuing intensive study of the geologic environments integral to the Butte ore deposits has confirmed the occurrence of over 130 minerals, many previous unreported from Butte. Grouped according to environment, the mineral suites are found to support, refine, and extend existing theories concerning chronology of the district geology and zonation of the hydrothermal mineralization. Environments mineralogically described are: the Tertiary Boulder Batholith Butte quartz monzonite host rock, including its aplite-pegmatite segregations, quartz porphyry dikes and plugs, and basic inclusions; the late-magmatic-pre-Main Stage hydrothermal mineralization molybdenite veinlets; the Main Stage hydrothermal mineralization and its contemporaneous wall rock alteration; post-ore rhyolite dike intrusion and ore metamorphism; and supergene alteration of ore minerals and wall rock in both pyrite-rich and pyrite-poor assemblages. The list of verified minerals at present includes 3 native metals, 19 sulfides, 14 sulfosalts, 16 oxides, 2 halides, 12 carbonates, 20 sulfates, 16 phosphate-arsenate-tungstates, and 32 silicates. A few reliably reported but unverified species are described, new occurrences and assemblages are cited, and minerals ascribed to Butte in the literature but found to be of unlikely or restricted occurrence are noted. Of particular interest to mineralogists is the reporting of the minerals aikinite, wittichenite, betekhtinite, and djurleite in the Butte ores. Of general interest are preliminary descriptions of a pyrophyllite-topaz-zunyite alteration assemblage; of the pre-Main Stage, feldspar-destructive, sericite-biotite Early Dark Micaceous alteration-mineralization; and of a recently defined Deep Level Zone of Main Stage sulfide mineralization.
Download or read book The Mineralogy of the Butte District Montana written by John M. Guilbert and published by . This book was released on 1993 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conditions of Mineralization in the Copper Veins at Butte Montana written by Charles Townsend Kirk and published by . This book was released on 1912 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidebook The Butte mining district Montana written by and published by . This book was released on 1932 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Minerals of the Intermediate Zone written by William Macdonough Agar and published by . This book was released on 1926 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology and Ore Deposits of the Butte District Montana written by Walter Harvey Weed and published by . This book was released on 1912 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Butte Mining District Montana Classic Reprint written by Eugene S. Perry and published by Forgotten Books. This book was released on 2018-04-28 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Butte Mining District Montana 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.
Download or read book Mineralogy written by Edward Henry Kraus and published by . This book was released on 1920 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Butte Mining District of Montana written by Us Department of Interior and published by CreateSpace. This book was released on 2014-08-21 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mining historian Kerby Jackson introduces us to a classic mining work in this important re-issue of the Department of Interior publication ““Geology and Ore Deposits of the Butte Mining District of Montana”. This important publication on Montana Mining has not been available for over a century.Included are rare insights into the gold, copper and silver mines of Butte, Montana together with hard to find maps and photographs.Some of the topics include the early history of gold, silver and copper mining in the Butte area, insight into the geology of its mining areas, the local distribution of gold, silver and copper ores, as well their composition and how to identify them.Also included are detailed facts about the mines in the Butte Mining District, including the famous Anaconda Mine, Gagnon, Parrot, Blue Vein, Moscow, Poulin, Stella, Buffalo, Green Mountain, Wake Up Jim, the Diamond-Bell Group, Mountain Consolidated, East Greyrock, West Greyrock, Snowball, Corra, Speculator, Adirondack, Miners Union, the Jessie-Edith May Group, Otisco, Iduna, Colorado, Lizzie, Cambers, Anderson, Hesperus, Preferencia and dozens of others. 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 Mineral and Water Resources of Montana written by United States. Congress. Senate. Interior and Insular Affairs and published by . This book was released on 1963 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Special Publication written by Montana Bureau of Mines and Geology and published by . This book was released on 1983 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Early Hydrothermal Alteration and Mineralization in the Butte District Montana written by Steven A. Roberts and published by . This book was released on 1975 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Covellite Zone written by James C. Ray and published by . This book was released on 1914 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Butte Montana written by Robert E. Jenkins and published by . This book was released on 2001 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology and Ore Deposits of the Butte District Montana Classic Reprint written by Walter Harvey Weed and published by Forgotten Books. This book was released on 2017-11-24 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Geology and Ore Deposits of the Butte District, Montana Blue vein Judicial investigation Development and general character. Intersection with Anaconda lode Intersection with Steward vein.. 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 Geology and Ore Deposits of the Butte District Montana written by Walter Harvey Weed and published by Franklin Classics. This book was released on 2018-10-11 with total page 194 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 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. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. 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 Geology and Ore Deposits of the Butte District Montana written by Walter Harvey Weed and published by . This book was released on 1912 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
