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Author : Paul McIntosh Tyler
Publisher : Unknown
Page : 68 pages
File Size : 47,9 Mb
Release : 1950
Category : Pegmatites
ISBN : UOM:39015078464040
Author : Eugene Nathan Cameron
Publisher : Unknown
Page : 142 pages
File Size : 50,9 Mb
Release : 1949
Category : Science
ISBN : UCAL:B4147928
Author : Bruce A. Kennedy,Society for Mining, Metallurgy, and Exploration (U.S.)
Publisher : SME
Page : 1214 pages
File Size : 40,6 Mb
Release : 1990
Category : Reference
ISBN : 0873351029
This SME classic is both a reference book for the working engineer and a textbook for the mining student. This hardcover edition gives a brief history of surface mining and a general overview of the state of surface mining today--topics range from production and productivity to technological developments and trends in equipment. This extremely useful text takes the approach that exploration and mining geologists must be expert in a number of fields, including basic finance and economics, logistics, and pragmatic prospecting. Readers will find material on all these topics and more. The book's nine chapters include: Introduction, Exploration and Geology Techniques, Ore Reserve Estimation, Feasibility Studies and Project Financing, Planning and Design of Surface Mines, Mine Operations, Mine Capital and Operating Costs, Management and Organization, and Case Studies. The book is fully indexed.
Author : Eugene Nathan Cameron,Richard Henry Jahns,Andrew Hamilton McNair,Lincoln Ridler Page
Publisher : Unknown
Page : 128 pages
File Size : 54,5 Mb
Release : 1949
Category : Pegmatites
ISBN : 1934969974
Studies of strategic mineral deposits in the major domestic pegmatite districts by the U.S. Geological Survey from 1939-1945 resulted in the clarification of many problems related to the internal structure, mineralogy and origin of granitic pegmatites. This report summarises about 68 man years of work in the pegmatite districts of New England, the Southeastern States, South Dakota, Idaho, Montana, Wyoming, Colorado, and New Mexico.
Author : Thomas Dittrich,Thomas Seifert,Bernhard Schulz,Steffen Hagemann,Axel Gerdes,Jörg Pfänder
Publisher : Springer
Page : 125 pages
File Size : 41,7 Mb
Release : 2019-02-13
Category : Science
ISBN : 9783030109431
Lithium-cesium-tantalum (LCT) pegmatites are important resources for rare metals. For Cs, only the LCT pegmatites with the zeolite group mineral pollucite at Bikita (Zimbabwe Craton) and Tanco (Superior Province Craton) are of commercial importance. Common characteristics of world-class LCT pegmatite deposits include their Meso- to Neoarchean age and geological setting within greenstone belt lithologies on Archean Cratons. This study presents the first coherent and comparative scientific investigation of five major LCT pegmatite systems from the Yilgarn, Pilbara and Zimbabwe Craton. For the evaluation of their Cs potential and of the genetic concepts of pollucite formation, the pegmatites from Wodgina, Londonderry, Mount Deans and Cattlin Creek were compared to the Bikita pollucite mineralization. The integration of the new data (e.g., geochronological and radiogenic isotope data) into the complex geological framework: 1) enhances our knowledge of the formation of LCT pegmatite systems, and 2) will contribute to the further exploration of additional world-class LCT pegmatite deposits, which 3) may host massive pollucite mineralisations.
Author : Anonim
Publisher : Unknown
Page : 562 pages
File Size : 44,7 Mb
Release : 1945
Category : Mines and mineral resources
ISBN : NYPL:33433060148842
Author : Harald G. Dill
Publisher : Springer
Page : 475 pages
File Size : 46,7 Mb
Release : 2015-10-15
Category : Science
ISBN : 9783319188065
This book will broaden readers’ understanding of pegmatites in a special geodynamic setting, dealing with the emplacement of the Hagendorf-Pleystein Pegmatite Province (HPPP) in the Central European Variscides. This treatise illustrates the complex processes leading to the formation and partial destruction of the pegmatites, documenting the geochronological, chemical, mineralogical, geological and geomorphological / sedimentological data set. The book starts with a detailed account of the economic geology of the various pegmatites, explaining why these deposits are a major resource of ceramic raw materials. In its concluding section, a model of the pegmatite evolution in an ensialic orogen provides meaningful insights into the genetic aspects of pegmatite generation. The Late Paleozoic rare-element pegmatites of the HPPP, Oberpfalz-SE, Germany, rank among the largest concentrations in Europe. The biggest pegmatite of this mining district totals 4.4 million tons of ore (Hagendorf-South). The mining history of the HPPP is restricted to the 20th century, when local entrepreneurs started mining operations in search of ceramic raw materials, feldspar and quartz. Today the “Silbergrube Aplite” is still worked for feldspar. The traditional mining of pegmatitic and aplitic rocks in Central Europe, such as the Bohemian Massif, which is shared by Germany, the Czech Republic, Poland and Austria, has been focused on these industrial minerals. In addition to these major commodities, lithium was mined for a period of time. But even today many of these pegmatites of calc-alkaline affiliation have not lost their appeal to mineralogists and mineral enthusiasts for their wealth of minerals that contain P, Nb, Ta, Li, Be, B, U, Th, Sc, Ti and Sn. The most favorable crustal section to bring about pegmatitic rocks of this type, encompassing pegmatoids, metapegmatites, reactivated pseudopegmatites and pegmatites sensu stricto is the ensialic orogen, exemplified by the Variscan (Hercynian) Orogen, which geodynamically connects the Paleozoic pegmatite provinces in North America and Europe. The geological history of the HPPP, however, goes much further than the Carboniferous-Permian magmatic activity, when the last structural disturbances of the Variscan orogeny affected the NE-Bavarian Basement between 450 and 330 Ma. During this time mafic magmatic rocks together with calcareous and arenaceous sediments were converted into paragneisses, calcsilicate rocks, and amphibolites. It is the period of time when tectonic shortening led to over thrusting and when the emplacement of nappes and the architectural elements of the ensialic orogen began taking shape. During the Late Permian, the Mesozoic and the Cenozoic, the HPPP did not lie idle in geological terms; hypogene and supergene alteration continued and found its most recent expression in alluvial-fluvial “nigrine” placer deposits, which resulted from the unroofing of the pegmatites and aplites in the HPPP and can be used even outside HPPP as an ore guide to pegmatites.
Author : Sharon E. Kroening
Publisher : Unknown
Page : 122 pages
File Size : 54,8 Mb
Release : 2004
Category : Earth sciences
ISBN : OSU:32435088172952
Author : United States. Bureau of Mines. Technical Library, Pittsburgh
Publisher : Unknown
Page : 778 pages
File Size : 46,5 Mb
Release : 1968
Category : Library catalogs
ISBN : MINN:319510009351758
Author : Donald E. Redmon
Publisher : Unknown
Page : 92 pages
File Size : 49,9 Mb
Release : 1961
Category : Pegmatites
ISBN : UOM:39015077562208
Author : Edson Sunderland Bastin
Publisher : Unknown
Page : 202 pages
File Size : 43,8 Mb
Release : 1911
Category : Gems
ISBN : UOM:39015064570321
Author : P. W. Scott,Colin Malcolm Bristow
Publisher : Geological Society of London
Page : 392 pages
File Size : 54,9 Mb
Release : 2002
Category : Nature
ISBN : 1862390991
Author : Anonim
Publisher : Unknown
Page : 144 pages
File Size : 42,8 Mb
Release : 1974
Category : Geology
ISBN : MINN:31951P00161052C
Author : Anonim
Publisher : Unknown
Page : 468 pages
File Size : 54,6 Mb
Release : 1968
Category : Geology
ISBN : UOM:39015042672884
Author : Geological Survey (U.S.)
Publisher : Unknown
Page : 256 pages
File Size : 52,6 Mb
Release : 1953
Category : Electronic
ISBN : STANFORD:36105001398259