Sedimentary Hosted Deposit
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Indicator kriging applied to RMR geomechanical modelling in a Pb-Zn deposit case study
Abstract The opening of a mining enterprise requires knowledge of the geomechanical characteristics of the mineral deposit, which will be worked according to the use of parameters of stability and/or resistance of the material, as well as the discontinuities present in the rock. In this study, the Rock Mass Rating methodology was used to propose a geomechani
REM, Int. Eng. J.. Publicado em: 2021-06
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2. Metalogênese do depósito de cobre Cerro dos Martins, RS: revisão e geoquímica isotópica de SR, O e C-
This paper presents the geology, chemical data, Pb-Pb zircon ages, sulfur, carbon, oxygen, strontium isotopes and fluid inclusions of Cerro dos Martins copper deposit. The deposit is hosted by the Neoproterozoic volcano-sedimentary sequence of the Camaquã Basin in the Rio Grande do Sul Shield, southern Brazil. The ores consist of a set of Cu-sulfide NW-tren
Publicado em: 2010
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3. Diferenças entre os depósitos auríferos do Grupo Aguapei (Estado de Mato Grosso) e os exemplos de ouro em conglomerados
Gold prospects in the Aguapeí Folded Belt are situated in the southwestern portion of the Amazon Craton, within the Alto Guaporé Province, southwestern state of Mato Grosso. The mineralizations are mainly concentrated in the Pau-a-Pique Deposit (south), Lavrinha Region (central), and São Vicente Mine (north). Gold ore comprises quartz veins and disseminat
Publicado em: 2010
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4. O deposito de oxido de ferro-cobre-ouro bacaba, provincia mineral de Carajas, PA : geocronologia U-Pb das rochas hospedeiras / Iron oxide-Cu-Au bacaba deposit, Carajas mineral province (PA), Brazil : U-Pb geocronology of the host rocks
The Bacaba iron oxidecoppergold deposit, situated in the Itacaiúnas Shear Belt, Carajás Mineral Province (Brazil), represents a satellite prospect of the world-class Sossego deposit, and might also represent a distal and deeper portion of the same or related hydrothermal system. The Bacaba deposit is located along a WNWESE-striking shear zone that de
Publicado em: 2010
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5. Evolução quimica e isotopica dos fluidos associados a mineralização de Fe-Cu-Au do deposito Alvo 118, provincia mineral de Carajas - PA / Chemical and isotopic evolution of the fluids from the Alvo 118 Fe-Cu-Au do deposit, Carajas mineral province (PA)
The Alvo 118 iron oxide-copper-gold (IOCG) deposit (170 Mt @ 1,0 wt% Cu, 0,3 g/t Au), together with the world-class Sossego and Cristalino deposits, lie in the southern sector of the Carajas Mineral Province (CMP) along a steeply-dipping, WNW-ESE-striking, 60 km-long shear zone, close to the contact of the Itacaiunas Supergroup metavolcano-sedimentary sequen
Publicado em: 2009
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6. Processos metalogenéticos em ambientes de arco magmático tipo andino, caso de estudo: mineralizações da região dos Andes Patagônicos setentrionais do Chile / Metallogenic processes in andean volcanic arc setting, study case: mineralizations in the Chilean North-Patagonion Andes
In the Patagonian Andes region between 41 and 44° S extensive and continuous plutonic rocks of the North-Patagonian Batholith north segment are exposed. During their evolution most of the granitic rocks were emplaced in metamorphic rocks and other parts were emplaced in Late Jurassic-Berriasan volcanic rocks, Early Cretaceous sedimentary and volcanic rocks,
Publicado em: 2008
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7. Caracterização da geometria de zonas de alteração hidrotermal - Estudo de caso no deposito aurifero de Brumal, Quadrilatero Ferrifero, Minas Gerais
The Brumal gold deposit is located in the northeastern portion of the Quadrilatero Ferrifero region. It is encIosed within an Archaean voIcano-sedimentary sequence (i.e., Nova Lima Group). Regional host rocks comprise two distinct greenstone assemblages, from bottom to top: (i) mafic to ultramafic volcanics and (i i) cIastic and chemical sediments. At least
Publicado em: 1999
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8. Controle estrutural da mineralização aurifera na mina de Cuiaba, setor noroeste do Greenstone Belt, Rio das Velhas, Quadrilatero Ferrifero, MG / Structural control of the gold mineralization at the Cuiaba mine, northwestern sector of the Rio das Velhas Greenstone Belt, Quadrilatero Ferrifero, MG
The Cuiabá Mine is located in the northem portion ofthe Quadrilátero Ferrífero, within a sequence of Archean rocks forrning the base of the Rio das Velhas greenstone belt. This research focused on geological mapping at a scale of l:100 and detailed studies of the tectonic structures observed in the Cuiabá Mine. Its main objective is to present the result
Publicado em: 1997
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9. O magmatismo associado ao deposito mineral cupro-aurifero do Igarape, Bahia, Carajas, PA, Brasil
The polymetallic Igarapé Bahia mineral deposit (Cu-Au-Ag-Mo) is hosted by the low-grade metavolcanic and metasedimentary roeles of the Igarapé Bahia Group in the Carajás Mineral Province, northern Brazil. The Igarapé Bahia Group consists mainly of basic volcanic and pyroclastic rocks, psamo-pelitic sedimentary rocks and iron formation, which follow a gen
Publicado em: 1993