 | | Journal (article/letter/editorial) | | Tin-Polymetallic Mineralization in the Oruro Mining District, Central Bolivian Tin Belt Asahiko SUGAKI...vein-type tin-polymetallic ore deposits of the Oruro mining district in the central part of the Bolivian tin...concluded that hypogene mineralization in the Oruro mining district took place during the early to middle Miocene:...Miocene: 15.8±0.8 Ma at San José, 20.1±1.1 Ma at Morococala, 20.5±1.0 Ma at Avicaya, and 19.6±1.0 Ma at Llallagua...alunite, jarosite, sericite, sulfur isotope, Oruro, Bolivia mineralization epochs of Bolivian epigenetic-type |  | | Report (issue) | | 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 |  | | Journal (article/letter/editorial) | | 1960 A COMPARATIVE STUDY CENTRAL OF MAJOR BOLIVIA. No. 2 ORE DEPOSITS PART OF I F. S. TURNEAURE...219 Potosi district ..................................................... Llallagua-Oruro region .....Eastern Andes of central Bolivia, the tin depositsof Llallagua, Huanuni and Morococala,and the tin-silver depositsof...depositsof Potosiand Oruro. The deposits at Potosi, Llallagua and Oruro are associatedwith porphyry intrusions...veins of Huanuni and Morococala occur in altered sedimentaryrocks. In the Llallagua-Oruro region, the Pa |  | | Journal (issue) | | 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....owned by Richard Bideaux’s Arizona Exploring and Mining Company for quite a few years. Bideaux and Wayne...period of activity, access to the mine was cut off in 1984. In 1996 the mine area was absorbed into the Saguaro |  | | Journal (article/letter/editorial) | | central Andean tin belt in the Eastern Cordillera of Bolivia (Fig. 1). The tin belt extends from southern Peru...Argentina and is the easternmost metallogenic province of the central Andes (Ahlfeld, 1967; Turneaure...Rice, 1997), which makes Llallagua the largest tin mine of the western world. The bulk geochemical tin enrichment...producer of the world and became an important tin mine in the early twentieth century. The cumulated Ag...are two major epochs of tin mineralization in Bolivia. Tin-tungsten mineralization in association with |  | | Journal (article/letter/editorial) | | Cruz, and Santa Vera Cruz) which gives lower Mioceneages. In central and southern Bolivia the tin depositsare...to 20 m.y. Several of the major tin depositsof Bolivia, includingthe Catavi depositat Llallagua, fall...plutonsof Illimani and the CordillerasQuimsa Cruz and Santa Vera Cruz. A southerngroup includesthe Cerro Rico...extended across the width of the Andes almost Bolivia, there are some remnants of epicontinental to the...AGE ; +.\r- ORURO O,r/r--13 180 ARICA Iq ' J • DATED LOWER MIOCENEJ ERUPTI VE/ BOLIVIA / COMPLEXES |  | Müller, Barbara, Frischknecht, Rolf, Seward, Terry, Heinrich, Christoph, Camargo Gallegos, Willy (2001) A fluid inclusion reconnaissance study of the Huanuni tin deposit (Bolivia), using LA-ICP-MS micro-analysis. Mineralium Deposita, 36 (7) 680-688 doi:10.1007/s001260100195 | Journal (article/letter/editorial) | | reconnaissance study of the Huanuni tin deposit (Bolivia), using LA-ICP-MS micro-analysis Received: 17 April...quartz-cassiterite veins of the Huanuni tin deposit, Bolivia. Fluid inclusion assemblages were found in quartz...Camargo Gallegos Universidad TeÂcnica de Oruro, Oruro, Bolivia Present address: B. MuÈller Division of...the ¯uid inclusion chemistry of the Huanuni tin mine. In addition to conventional homogenisation temperature...The Bolivian tin province The Bolivian tin belt is a well-de®ned metallogenetic province extending from |  | Lehmann, B., Dietrich, A., Heinhorst, J., Métrich, N., Mosbah, M., Palacios, C., Schneider, H. -J., Wallianos, A., Webster, J., Winkelmann, L. (2000) Boron in the Bolivian tin belt. Mineralium Deposita, 35 (2) 223-232 doi:10.1007/s001260050017 | Journal (article/letter/editorial) | | magmatic-hydrothermal systems of the Bolivian tin province. The average boron content in melt inclusions...and porphyry deposits of the Andean tin belt of Bolivia and southernmost Peru. Both metal provinces represent...granite/porphyry systems (San Rafael, San JoseÂ/ Oruro, Llallagua, Cerro Rico de Potosi, Chorolque) (Grant...framework of the central Andes The Andean tin belt of Bolivia, SE Peru and northernmost Argentina (Fig. 1), usually...Paleozoic clastic rocks of the Eastern Cordillera of Bolivia, in tourmaline-quartz-sericite and chlorite The |  | | Journal (article/letter/editorial) | | July/August: Pyrite, quartz, and galena, Camp Bird mine, Ouray, Colorado. Barbara Muntyan specimen, John...photo. September/October: PhosphophylIite, Potosi, Bolivia. Martin Zinn specimen, Jeffrey Scovil photo. November/December:...November/December: Gold on quartz, Eagle's Nest mine, Placer County, California. Wayne and Dona Leicht...Minerals, 16-38 Benitoite, California, 379, 392-95 Biotite, Arkansas, 185 Blakeite, 367 Boleite,27 Bookplates...Pedro Mine, Malacacheta District, Minas Gerais, Brazil, 320-22; Vivianite, Morococala Area, Oruro, Bolivia |  | | Journal (article/letter/editorial) | | extensivefield mappingby the GeologicSurveyof Bolivia, are adequateto allow elucidationof the major featuresof...Cruz. Group III are samples from the mining districtsfrom Oruro to, and a little southof, Potosl. Samplelocalitiesand...collectedon rocks in part suppliedby severalgeologistsin Bolivia and in part collectedon field trips by the authors...dating veins, flows, and in- have been publishedin Bolivia. The part of this trusions associated with various...Altiplano Basin carried out by the GeologicSurvey of Bolivia in cooperationwith the U.S. Agency for International |  | Ericksen, G.E., Smith, R.L., Luedke, R.G., Flores, Mario, Espinosa, Alfredo, Urquidi, Fernando B., Saravia, Fernando (1985) Preliminary geochemical study of ash-flow tuffs in the Morococala and Los Frailes volcanic fields, central Bolivian tin belt. Open-File Report Vol. 1985 (85-258) US Geological Survey doi:10.3133/ofr85258 | Report (issue) | | geochemical study of ash-flow tuffs in the Morococala and Los Frailes central volcanic fields, Bolivian...Location map showing Bolivian tin belt and the Morococala and Los Frailes volcanic fields ...............representative ash-flow tuffs of the Morococala and Los Frailes volcanic fields, Bolivia, compared with selected ash-flow...concentrations of tin and related elements in tuffs of the Morococala and Los Frailes volcanic fields, which cover...further evaluation of the tin potential of the Morococala and Los Frailes volcanic fields, but do suggest |  | McBride, Sandra L., Robertson, Ronald C. R., Clark, Alan H., Farrar, Edward (1983) Magmatic and metallogenetic episodes in the northern tin belt, cordillera real, Bolivia. Geologische Rundschau, 72 (2) 685-713 doi:10.1007/bf01822089 | Journal (article/letter/editorial) | | Episodes in the Northern TinBelt, Cordillera Real, Bolivia By SANDaAL. McBRIDE, Kingston, RONALDC. R. I:{OBERTSON...ffir das wichtige Sn-Ag epithermale Zentrum yon Oruro bestimmt. Dieses weicht yon der allgemeinen nach...Miocene age (16.8 Ma) determined for the important Oruro Sn-Ag epithermal centre (17~ 56' S.) represents...Episodes in the Northern Tin Belt, Cordillera Real, Bolivia tiaires sont tr6s semblables; cependant le tungst6ne...e n t a 1 (Eastern Cordillera) of northwestern Bolivia, an essentially linear, northwest-trending, chain |  | | Report (chapter) | | hydrothermal systems in some sub-volcanic tin deposits of Bolivia J. N. Grant Department o f Geology, Royal School...Geol6gico de Bolivia ( G E O B O L ) , La Paz, Bolivia G. Avila Servicio Geol6gico de Bolivia ( G E O B...B O L ) , La Paz, Bolivia 5 5 2 . 3 : 5 5 3 . 2 1 6 . 5 : 553.45(84) Synopsis The tin deposits o f the...southern part o f the Cordillera Oriental o f Bolivia consist of complex vein systems and pervasive disseminated...rocks are preserved (Llallagua, San Pablo de Morococala). A t others, both the intrusives and coeval |  | | Journal (article/letter/editorial) | | and Triassic Sn–W–(Ag-base metal) metallogenic province, commonly referred to as the Bolivian tin belt...proposal include: (1) the coincidence of the tin province and the Inner Arc in a marked bhumpQ in the Andean...tectonic indentation; (2) the symmetry of the tin province with respect to the Bolivian orocline, the axis...Central Andean tin belt is an elongated metallogenic province, confined to the Eastern Cordillera of the Andean...more than 1000 km from southeastern Peru, through Bolivia, up to northern Argentina (Fig. 1). Hundreds of |  | | Journal (article/letter/editorial) | | deposits of Miocene age in the Eastern Cordillera in Bolivia were studied by ICP/MS and EPMA for major and minor...concentration of trace amounts of indium. Keywords: Bolivia, indium, petrukite, polymetallic, Potosi, sphalerite...Lake Titicaca La Paz PERU Oruro Sn-polymetallic ore belt Arica BOLIVIA Potosi CHILE Lake Uyuni Border...terrains of Japan (Ishihara et al., 2006) and Bolivia (Ishihara & Murakami, 2008a). The total indium...(Sinclair et al., 2006). Tin-polymetallic deposits in Bolivia (Fig. 1) appear to be one of the major source regions |  | | Journal (article/letter/editorial) | | Mineralization of the NortheasternAltiplano of Bolivia STEWART D. REDWOOD* Departmentof Geology,AberdeenUniversity... onthe easternsideof the northernAltiplano of Bolivia,part of the central Andeanpolymetallicbelt. Twenty-eightnew...Jurassic(Farrar et al., The Paleozoic fold belt of Bolivia and Peru consists of thick, lower Paleozoic,marine...along the entire length 'of the continental of Bolivia was carried out usingK-Ar dating. This formspart...Consultores Asociados (Mintec), Casilla 22389, La Paz, Bolivia. limestone of the Campanian-Maastrichtian marine |  | | Journal (issue) | | Articles Famous mineral localities: the Sterling mine, Antwerp, New York ........ 199 G. W. Robinson...and S. C. Chamberlain Pseudomorphs from the Burra mine, South Australia ..............................219...cm long, on white natrolite from the Dallas Gem mine, San Benito County, California. For more on this...directed the electrification of various Spanish mine shafts and facilities near Tarragona, Almaden, and...years, beginning at the age of ten while visiting mining properties owned by his family. The first of his |  | Rice, C. M., Steele, G. B., Barfod, D. N., Boyce, A. J., Pringle, M. S. (2005) DURATION OF MAGMATIC, HYDROTHERMAL, AND SUPERGENE ACTIVITY AT CERRO RICO DE POTOSI, BOLIVIA. Economic Geology, 100 (8) 1647-1656 doi:10.2113/gsecongeo.100.8.1647 | Journal (article/letter/editorial) | | AND SUPERGENE ACTIVITY AT CERRO RICO DE POTOSI, BOLIVIA C. M. RICE,† G. B. STEELE,* Department of Geology...39Ar New high precision dating of sanidine and biotite from two rhyolitic domes and an ignimbrite, combined...occur mainly within the Eastern Cordillera of Bolivia and collectively form the major part of the central...porphyritic rhyodacite with quartz, sanidine, and biotite phenocrysts, which is typically, but not always... c.rice@abdn.ac.uk *Present address: Rio Tinto Mining and Exploration Ltd., S. American Region, El Bosque |  | | Journal (article/letter/editorial) | | Peraluminous Silicic Volcanic Rocks from the Morococala Field, Bolivia GEORGE B. MORGAN VI1∗, DAVID LONDON1 AND...of the Morococala field, Bolivia, define a layered stratigraphy of basal andalusite-, biotite(± muscovite)-bearing...overlain by cordierite-, biotite-bearing rhyolite tuffs (CR), and capped by biotite-bearing quartz latite...make this unlikely. Genesis of the QL involved biotite-dehydration melting of an aluminous source at T...portions of the belt, including those of the Morococala field (Fig. 1), were briefly described by Ericksen |  | | Report (volume) | | them, almost invariably are associated with biotite or biotite-muscovite granite. Most lode deposits fall...metal commodities are also recovered during the mining and concentration of tin. Lode deposit's yield...however, is concentrated in amounts suitable for mining. GEOLOGY Tin, a useful metal of commerce since...been sought and mined. Consequently, several major mining areas have been studied in three dimensions. CompaJ:>ed...areas are being found, the geology o:f each new district falls within that predicted from past experience |  | | Report (issue) | | - - - - - - - - 16 9. Proportions of total world mine production of tin accounted for by countries having...Countries having greater than 2,000 metric tons of tin mine production in any one of the selected years 1940-8...deposits and districts, by country, deposit type, and mining method ------------------------------------------Tin...- - - - - - - - Estimated cumulative and annual mine production of tin, contained in ore and concentrate:...world's major deposits and districts, listed by mining method and economic class of country- - - - - - |  | | Journal (article/letter/editorial) | | also P rich (e.g., Macusani, Peru; Morococala and Los Frailes, Bolivia). In these Ca-poor rock types, the...(San) and Pl from the peraluminous Morococala volcanics, Bolivia, manifest a complex history of P variation...ignimbrites and lavas from the Morococala and Los Frailes volcanic provinces, Bolivia (Fig. In a recent paper...Tocopllla CHILE 69 Fig. 3. Location of the Morococala and Los Frailes volcanic fields within the Bolivian...1.03 Note.'Analyses 1-5 from Hill 0988). 1 : biotite granite, sample 1000; 2 : globular quartz granite |  | | Book | | Crystals up to 140mm (5'A in) long occurred in the Ray mine and in Bisbce, Arizona, USA. Very fine spincl-law...100 mm (4 in) long, come also from the San Gcnaro Mine in Huancavclica and Uchucchaqua, Peru. New finds...many localities in California, USA (Colorado Quartz mine. Nigger Hill and others). Fine leaf gold comes from...110 mm (47.6 in) long were very rare in Ground Hog mine, Gilman, Colorado, USA. The largest known sheets...of crystallized gold occurred in the Jamestow n mine. California, USA, where a cavity, which yielded |  | | Journal (article/letter/editorial) | | 2 PAGES 355±385 2003 Glass-rich, Cordierite±Biotite Rhyodacite, Valle Ninahuisa, Puno, SE Peru: Petrological...dyke, a 241 Ma, 5 m wide body of cordierite ^ biotite rhyodacite exposed in the Central Andean Inner...undevitrified glass, phenocrysts of plagioclase, biotite, Fe-cordierite and rare quartz and sanidine, and...zircon, ilmenite and monazite. Both plagioclase and biotite phenocrysts exhibit complex zonation and convincing...garnet and/or cordierite, in addition to abundant biotite. In a recent reappraisal of this critical concept |  | | Journal (article/letter/editorial) | | Partitioning of fluorine and chlorine between biotite and granitic melt: experimental calibration at...partitioning of fluorine and chlorine between biotite (Bt) and melt. Over this temperature interval,...phase. Partition coefficients for fluorine between biotite and glass (DFBt/melt) show a strong dependence...experiments vary inversely with Mg′. The Al-content of biotite does not vary with the aluminum saturation index...in magmatic biotite from a zoned peraluminous rhyolite complex near Morococala, Bolivia: Bt is sharply |
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