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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 ...
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 ...
Weathering evolution of the rich-phosphates lateritic mantle in Itacupim Island, Pará, Brazil - mineralogy, micromorphology, and geochemistryEvolução do Manto de Intemperismo Laterítico Rico em Fosfatos na Ilha de Itacupim (PA) - Mineralogia, Micromorfologia e Geoquímica
(Instituto de Geociências /Universidade Federal do Rio Grande do Sul, 2006)
Combined dating of goethites and kaolinites from ferruginous duricrusts. Deciphering the Late Neogene erosion history of Central Amazonia
(2018-02-20)
This study focuses on the dating of millimetric pisoliths from ferruginous duricrusts located in central Amazonia (Brazil), by coupling detailed mineralogy and two relevant dating methods: (i) (U-Th)/He analysis of goethites ...
GOLD-BEARING IRON DURICRUST IN CENTRAL BRAZIL
(Elsevier Science BvAmsterdamHolanda, 1991)
Transient and relict landforms in a lithologically heterogeneous post-orogenic landscape in the intertropical belt (Alto Paranaíba region, Brazil)
(2021-10-15)
High elevations and steep slopes are currently observed in ancient mountain ranges despite active tectonics having ceased tens to hundreds of millions of years ago. Explanations for landscape dynamics in these settings ...
O papel da dinâmica do relevo na evolução de couraças no Vale do Rio Conceição, Quadrilátero Ferrífero - MG
(Universidade Federal de Minas GeraisBrasilIGC - DEPARTAMENTO DE GEOGRAFIAUFMG, 2019-01-02)
Petrological studies using macromorphological, micromorphological, mineralogical and microchemical analyzes were performed to identify possible faciological variations of duricrusts in the different fl uvial depositional ...
Geochemical aspects of the silicification in sedimentary rocks in Rio Grande do Sul, BrazilAspectos Geoquímicos de Silicificações em Rochas Sedimentares no Rio Grande do Sul, Brasil
(Instituto de Geociências /Universidade Federal do Rio Grande do Sul, 2005)
Caracterização petrográfica, geoquímica e mineralógica do arenito da Formação Marília e processos de alteração
(Universidade Estadual Paulista (Unesp), 2017-03-30)
Observações de campo, petrografia, geoquímica e mineralogia em dois perfis de alteração de solo dos arenitos provenientes do Membro Serra da Galga, Formação Marília, foram utilizados para avaliar a possível relação genética ...