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Gold-bearing iron duricrust in Central Brazil
(1991-11-01)
In the Cuiabá region-State of Mato Grosso, Central Brazil-primary gold mineralization is hosted by two generations of quartz veins in Precambrian metamorphic terrains of the Cuiabá Group. Gold is mined from the veins and ...
Neurological and neuropsychological deterioration in artisanal gold miners from the town of Andacollo, Chile
(2013)
It is widely known that human exposure to mercury vapor can cause neurological and neuropsychological deterioration. We have investigated if a population of Chilean artisanal gold-mining workers heavily exposed to elemental ...
The Rio Mata Cavalo group: The gold mineralization and its originO Grupo Rio Mata Cavalo: A mineralização de ouro e sua origem
(2011-01-01)
The metavolcano-sedimentary sequences, at the southeastern of Espinhaço ridge, present difficulties for distinction of Rio das Velhas Supergroup, till now. Besides of very similarities it is possible to separate the Rio ...
Geophysical Prospecting Over a Meta-Ultramafic Sequence with Indicators of Gold Mineralization in Rio Grande do Sul State, Southernmost Brazil
(2020-01-01)
This work investigates the occurrence of gold on meta-ultramafic rocks at Funcho Farm, São Sepé, Rio Grande do Sul state, southernmost Brazil. The presence of base metals in meta-ultramafic rocks whose origin is related ...
Gold deposits in poly-deformed metasedimentary rocs: a case study of the C1-Santaluz gold deposit, Itapicuru Greenstone Belt, Northeast of Brazil
(Soc Brasileira Geologia, 2018-10-01)
The C1-Santaluz gold deposit is located in the Itapicuru greenstone belt in Bahia State, Brazil. Metavolcanic and metasedimentary rocks dominate at the base and top, respectively. The ore minerals related to the auriferous ...
Geophysical characterization of the Santa Catarina gabbro, São Sepé (RS)Caracterização geoelétrica do gabro Santa Catarina, São Sepé (RS)
(2014-01-01)
Geophysical methods are widely used in mineral exploration for several types of mineral deposits. When combined with direct studies as geochemistry, a substantial increase in the probability of ore discovery is possible ...
Middle Proterozoic vein-hosted gold deposits in the Pontes e Lacerda region, southwestern Amazonian craton, Brazil
(1997-05-01)
Structural, geochemical, and isotope studies were carried out on the gold deposits of the Pontes e Lacerda region (Mato Grosso state, Brazil), where rocks of the Aguapei and Rondoniano mobile belts (southwestern Amazonian ...
The source of metals of the Schramm Gold Mine, Santa Catarina : evidence of lead isotope and rare earth elementsA Fonte dos Metais da Mina de Ouro do Schramm, Santa Catarina: Evidências de Dados de Isótopos de Pb e Elementos Terras Raras
(Instituto de Geociências /Universidade Federal do Rio Grande do Sul, 2005)
Magnetometric exploration in intrusive basic with evidence of gold in northern region of the Camaquã Sedimentary Basin (RS)
(2015)
This study involved magnetometric exploration in the region of São Sepé (RS), southern Brazil, to evaluate the potential for gold mineralization in a gabbro using evidence previously obtained from the geochemical exploration ...