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| POTOSI REGION, Sb VEIN CENTRAL MINERALIZATION BOLIVIA H. G. DILL,* FederalInstitute for Geosciences...Calle FedericoZuazo 1673, Castilla2729, La Paz, Bolivia Introduction andscanning electron microscopy...Simplified mapshowing themajorgeologic unitsin Bolivia (modified fromAhlfeldandSchneider-Scherbina, 1964)...ladder-shaped veinlets andhorsetail structures (e.g.,Churquini), (2) bedding-concordant saddle reefs(e.g.,Candelaria)...withaltitudeanddistance givenin various approximatescales. (c).Churquini. Cross section based onunderground workings (redrawn |
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| of the Sb mineralisation in the Central Andes (Bolivia) and the Western Carpathians (Slovakia) Received:...28 August 1997 Abstract In the Central Andes (Bolivia) and the Western Carpathians (Slovakia) Sb-(Au)...(type III) evolved. Introduction In America, Bolivia is the leading antimony producer, with some large...in the Bolivian Andes. a Geotectonic outline of Bolivia according to Ahlfeld and Schneider-Scherbina (1964);...Since the lower Jurassic, the Central Andes in Bolivia have been an orogen related to subduction of oceanic |
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| No. 12: Bolivia ht of Mineral Collecting N 978-0-9790998-5-4 Publisher Lithographie, LLC Denver, Colorado...specimen 'being sold with the shrine when he was in Bolivia buying mineral specimens in the 1970s. He took...ophyllite; 5. 2 cm tall Cerro Rico, Potosi, B,atillo province, Potosi Andy Seibel col/action Jejf-SC,m/.plwto...wp11�. Yaalte: 12.5 cm wide Siglo XX Mine, ,U� Bustillo province, Potosi Malty Zinn colkdknt (ex Marv...640 200 100 600 The Political Divisions of Bolivia (after United Nations Map No. 3875, Peacekeeping |
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| Articles Famous mineral localities: The Bristol copper mine, Connecticut......................................in the U.S.A. notesfrom th r EDITORS OLD YUMA MINE Another great mineral locality has now been closed...longfamous Old Yuma mine near Tucson (see R. L. Jones, “Famous mineral localities: the Old Yuma mine,” in vol....period of activity, access to the mine was cut off in 1984. In 1996 the mine area was absorbed into the Saguaro...and Mining Company for the sum of $558,000. The mine is now owned outright by the Federal Government |
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| source of Mn, Cu and Ni, but neither the technical nor the jurisdictional issues have so far been solved...can neither be the basic philosophy of exploration nor is it helpful to disclose the secrets of this mixtum...Chalcedony Chalcocite Chalcomenite Chalcophanite Chalcopyrite Chalcostibite Chamosite Charoite Chengdeite...mineralization was mined for Cu ore made up of chalcopyrite forming the ore mineral and siderite plus dolomite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the |
| | Journal (article/letter/editorial) |
| source of Mn, Cu and Ni, but neither the technical nor the jurisdictional issues have so far been solved...can neither be the basic philosophy of exploration nor is it helpful to disclose the secrets of this mixtum...Chalcedony Chalcocite Chalcomenite Chalcophanite Chalcopyrite Chalcostibite Chamosite Charoite Chengdeite...mineralization was mined for Cu ore made up of chalcopyrite forming the ore mineral and siderite plus dolomite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the |
 | | Report (issue) |
| holdings. Prior to 1978, the development of complete mine property cost evaluations was impeded by still evolving...tool. Systems design work also continued on the mine simulation (MINSIM) program, an economic evaluation...reserves. These include implications that because a mine is operating it is profitable, that reported reserves...prices, which are variable over the life of the mine. Economic evaluation is complicated by the presence...and economic variables on viability of individual mine properties (17-18). Nonproducing deposits Producing |
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| Shipments by mines for 1958, 1959, 1960 B96 Open Pit Mine Production ef 3 Technological ; Advances Tons...Tons mined and stripped & 99 Underground Mine Production from 1955 through 1960 > 101 Geology and...built for heavy off-highway service in construction, mine, quarry and industrial tons For work under large...the 1961 FOR 1960 Blue Ribbon Equipment U. S. MINE Awards Services Supplies REVIEW L. Rice Henry...Lancaster C. BY Argentina Brazil ‘ Briti-h Guiana Bolivia Chile Colombia Honduras Mexico Patterson Russell |
