 | | Journal (article/letter/editorial) | | IN THE BOLIVIAN FEDERICO 1941 TIN No. 6 BELT. AHLFELD. ABSTRACT. This paper deals with vertical...vertical and lateral ore zoning in the Bolivian tin belt. Three groups of depositsare distinguished: Group...veins .............. : ............................. Gold quartz veins .....................................distribution of ore minerals within the Bolivian tin belt hasbeentreatedto someextentby the writer • and is... in recentstudiesby the writer. The Boliviantin belt (Fig. •) is an elongateregionof arcuate form with |  | | 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....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 |  | | 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 (issue) | | Number Four Articles The El Desierto sulfur mine, Potosí, Bolivia . . . . . . . . . . . . . . . . . . . ....of the Mazarrón-Águilas mining district, Murcia Province, Spain . . . . . . . . . . . . . . . . . . . ...mineral localities: The Pacajake selenium mine, Potosí, Bolivia . . . . . . . . . . . . . . . . . . . ....Technology in Rio de Janeiro, on the recovery of gold; he retired in 1972, after suffering lung damage...1980 when he paid me a visit at the Jacupiranga mine; somehow he had learned of my mineralogical researches |  | | Journal (article/letter/editorial) | | geochronological results and structural evolution of the Pataz gold mining district: Implications for the timing and...Geochronology Structural geology Gold a b s t r a c t The Paleozoic Pataz–Parcoy gold mining area is located in...in northern Peru. Most of the 8 million ounces of gold production from this area has come from quartz–carbonate–sulfide...(ENE–WSW) during formation of the batholith-hosted, gold-bearing quartz–carbonate–sulfide veins. The misoriented...extension in the competent batholith and formation of gold-bearing veins. Brittle failure of the batholith |  | | Journal (volume) | | Consul-General of Bolivia, New York. Mining Engineer, Butte, Mont. Tin Mining in Bolivia. Coal Alining...Alining in Montana. Gold in Montana. Ainsworth, Samuel Colcord, F. F. Lyons, Kan. Salt in Kansas. Atkinson...Manager, Co., New York. State Engineer and Ex-officio Mine Inspector, Bismarck, N. D. Collins, George Coal...Mining Engineer, Denver, Colo. Copper in Colorado. Gold in Colorado. Lead in Colorado. Atwater, C. G. Engineer... V. N. Metallurgical Engineer, Denver, Colo. Gold in South Dakota. State Geologist, Lincoln, Neb |
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