Review of the geological and geochronological framework of the Vazante sequence, Minas Gerais, Brazil: Implications to metallogenic and phosphogenic models

Autor: Aroldo Misi, Karem Azmy, Alan J. Kaufman, Gustavo Diniz Oliveira, Tolentino Flávio de Oliveira, Andreia Lima Sanches

Publikováno v: Ore Geology Reviews. 63:76-90

The Vazante Group, as originally described, is a thick marine carbonate-dominated succession adjacent to the Brasilia Fold Belt, on the western border of the Sao Francisco Craton, in south-central Brazil. The sedimentary dolomites of this group conta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::06c0084364d3be755ce45622e05f1e25
https://doi.org/10.1016/j.oregeorev.2014.05.002

Oceanic redox conditions in the Late Mesoproterozoic recorded in the upper Vazante Group carbonates of São Francisco Basin, Brazil: Evidence from stable isotopes and REEs

Autor: Tolentino Flávio de Oliveira, Paul J. Sylvester, Karem Azmy

Publikováno v: Precambrian Research. 168:259-270

The Vazante Group consists of a late Mesoproterozoic (∼1.0–1.1 Ga) carbonate-dominated marine platform sequence in east-central Brazil. The upper part of the sequence consists of a glaciomarine diamictite unit overlain by a cap carbonate. The δ1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d45b0c7bdc562b2985423c20d81ddddb
https://doi.org/10.1016/j.precamres.2008.10.003

Nonsulfide and sulfide-rich zinc mineralizations in the Vazante, Ambrósia and Fagundes deposits, Minas Gerais, Brazil: Mass balance and stable isotope characteristics of the hydrothermal alterations

Autor: Lena Virgínia Soares Monteiro, Jorge Silva Bettencourt, Tolentino Flávio de Oliveira, Caetano Juliani

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The Vazante Group hosts the Vazante nonsulfide zinc deposit, which comprises high-grade zinc silicate ore (ZnSiO4), and late-diagenetic to epigenetic carbonate-hosted sulfide-rich zinc deposits (e.g. Morro Agudo, Fagundes, and Ambrosia). In the sulfi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ffc673683c7123f4182167ae03ffbb1
https://doi.org/10.1016/j.gr.2006.04.017

Geology, petrography, and mineral chemistry of the Vazante non-sulfide and Ambrósia and Fagundes sulfide-rich carbonate-hosted Zn–(Pb) deposits, Minas Gerais, Brazil

Autor: Lena Virgínia Soares Monteiro, Jorge Silva Bettencourt, Caetano Juliani, Tolentino Flávio de Oliveira

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The Vazante–Paracatu region represents the most important Zn district known in Brazil and includes the Vazante hypogene non-sulfide Zn deposit composed mainly of willemite (Zn2SiO4) and sphalerite-rich carbonate-hosted Zn–(Pb) deposits. Fagundes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f348c3f3b3a7be1d8e630a9c3ef30e68
https://doi.org/10.1016/j.oregeorev.2005.03.005

Isotope geochemistry of the mafic dikes from the Vazante nonsulfide zinc deposit, Brazil

Autor: Marly Babinski, Lena Virgínia Soares Monteiro, A. H. Fetter, Tolentino Flávio de Oliveira, Jorge Silva Bettencourt

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The Vazante Group, located in the northwestern part of Minas Gerais, hosts the most important zinc mine in Brazil, the Vazante Mine, which represents a major known example of a hypogene nonsulfide zinc deposit. The main zinc ore is represented by wil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96958c40d73a333a073e5706d392c774
https://doi.org/10.1016/j.jsames.2004.11.010