 | | Journal (article/letter/editorial) | | deposits of the Neoproterozoic Mara Rosa magmatic arc, central Brazil Claudinei G. de Oliveira *, Márcio...Universidade de Brası́lia, Brası́lia-DF, 70910.900, Brazil Received 18 August 2003; accepted 24 April 2004...the Neoproterozoic Goiás Magmatic Arc, central Brazil, dates back to the beginning of the 1970s. The...Neoproterozoic juvenile crust, the Arenópolis and the Mara Rosa arcs, are identified. They lie in the southern...values between + 3.0 and + 4.6. In the Chapada – Mara Rosa area, the supracrustal rocks form three individual |  | | Report (volume) | | Minas Gerais Brazil GEOLOGICAL SURVEY BULLETIN 964-C Mica Deposits in Minas Gerais Brazil By W. T....M. BARBOSA and RESK FRAYHA, DIVISSO DE FOMENTO, BRAZIL GEOLOGIC INVESTIGATIONS IN THE AMERICAN REPUBLICS...da Produgao Mineral, Ministerio da Agricultura, Brazil, under the auspices of the Interdepartmental Committee...__________-___---_____---_-________ Exports of sheet mica from Brazil, 1900-1945-___-__-_______----______ General statement...273 274 274 275 275 276 276 CONTENTS V Page Mine-crude mica and sheet-mica production analyses-__________________ |  | | Journal (issue) | | fluorite crystal group, 7 cm, from the Huanzala mine, Dos de Mayo Province, Peru. Marty Zinn collection;..................................... Quiruvilca district, Santiago de Chuco province, department of La.................................... Pasto Bueno district, Pallasca province, department of Ancash R a u............ Raura district, Cajatambo province, department of Lima Pachapaqui district, Bolognesi province...Huallanca district, Dos de mayo province, department of Huanuco Huanzala mine Mercedes mine Chiurucu mine |  | | Report (issue) | | arbitrary 500-m limit may combine deposits within a district (e.g. Quemont-Horne), or subdivide a large deposit...MARCASITE MELANTERITE MENEGHINITE MILLERITE MOLYBDENITE MONTMORILLONITE MUSCOVITE NEODIGENITE NICCOLITE...GUILLERMO-SIERRA SAN MATED SAN PEDRO SAN PLATON SAN TELMO SANTA ROSA SCHIST LAKE SELCO-SCOTT SHA SHASTA KING SHUNSBY...Bandgan, Kimri and Jadino, Raskoh Range, Chagai district, west Pakistan, in Symposium on mining geology...1953, Geology and ore deposits of the Afterthought mine, Shasta County, California: California Division |  | | Book | | Effect on Balance of Payments of Spending by a Sample Mine 281 Operations of a Mixed Company 303 Xl PART...(while the jungle that adjoins the Acre Territory of Brazil appears unknown, at any rate to the outside world)...somewhat surprising, then, to find that virtually every mine of importance in the Cordillera Occidental of central...almost always associated with a mineral deposit and a mine and vice versa--so much so that to prospect for...Pasco itself (for over 400 years a major silver mine), the "silver belt" seems to lie along the western |
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