Evandro Luiz Klein
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View article: Short Communication on "A design of gold-bearing metallogenic provinces and districts in Brazil"
Short Communication on "A design of gold-bearing metallogenic provinces and districts in Brazil" Open
There is a lack of consensus on how many and which are the Brazilian gold provinces and districts, and what are their limits or configurations. As an effort of the Geological Survey of Brazil to standardize this subject, we present a compi…
View article: Editorial: message from the Editor-in-Chief
Editorial: message from the Editor-in-Chief Open
Dear colleagues, greetings from the Editorial Board. In 2023, the Journal of the Geological Survey of Brazil - JGSB - enters its sixth year of activities. Growth is naturally slow, but with a good technical-scientific standard of published…
View article: Overview of the geological mapping in Brazil: historical analysis until 2022
Overview of the geological mapping in Brazil: historical analysis until 2022 Open
O objetivo deste trabalho é contextualizar a evolução do mapeamento geológico no Brasil a partir da criação da Companhia de Pesquisa de Recursos Minerais-CPRM em 1969, como parte de um conjunto de medidas governamentais que visavam impulsi…
View article: Unsupervised drill core pseudo-log generation in raw and filtered data, a case study in the Rio Salitre greenstone belt, São Francisco Craton, Brazil
Unsupervised drill core pseudo-log generation in raw and filtered data, a case study in the Rio Salitre greenstone belt, São Francisco Craton, Brazil Open
We use in situ portable X-Ray Fluorescence data acquired in sawn drill core samples of rocks from the Sabiá prospect, at the Rio Salitre greenstone belt, São Francisco Craton Brazil, for pseudo-log automatic generation through running unsu…
View article: Editorial from the Editor-in-Chief
Editorial from the Editor-in-Chief Open
Initiatives to protect the Earth system in several countries are known since the seventeenth century, mostly dealing with the preservation of fossils, caves, and other geomorphological features. The word “Geoconservation”, which best descr…
View article: Editorial form the Editor-in-Chief
Editorial form the Editor-in-Chief Open
Initiatives to protect the Earth system in several countries are known since the seventeenth century, mostly dealing with the preservation of fossils, caves, and other geomorphological features. The word “Geoconservation”, which best descr…
View article: Lu–Hf constraints on pre-, syn, and post-collision associations of the Gurupi Belt, Brazil: Insights on the Rhyacian crustal evolution
Lu–Hf constraints on pre-, syn, and post-collision associations of the Gurupi Belt, Brazil: Insights on the Rhyacian crustal evolution Open
The Gurupi Belt (together with the São Luís cratonic fragment), in north-northeastern Brazil, has been described in previous studies that used extensive field geology, structural analysis, airborne geophysics, zircon U–Pb dating, and whole…
View article: Fluid inclusion and isotope (O, H, C, Sr) constraints on the orogenic gold mineralization at the Enche Concha and Tunel prospects, Gurupi Belt, Brazil
Fluid inclusion and isotope (O, H, C, Sr) constraints on the orogenic gold mineralization at the Enche Concha and Tunel prospects, Gurupi Belt, Brazil Open
The gold mineralization at the Enche Concha and Tunel prospects, northwestern portion of the Gurupi Belt, is hosted in dacites and phyllites that belong to the ca. 2160 Ma-old metavolcano-sedimentary Chega Tudo Formation. These host rocks …
View article: Hydrothermal alteration, mineralization and fluid inclusions in the Pista and Fofão prospects: implications for the genetic model of the Coringa polymetallic deposit, SE Tapajós Mineral Province, Amazonian Craton, Brazil
Hydrothermal alteration, mineralization and fluid inclusions in the Pista and Fofão prospects: implications for the genetic model of the Coringa polymetallic deposit, SE Tapajós Mineral Province, Amazonian Craton, Brazil Open
Pista and Fofão are prospects located near the main orebodies of the Coringa polymetallic deposit, in southeastern Tapajós Mineral Province of the Amazonian Craton. In both prospects, the mineralization is hosted in an Orosirian alkali fel…
View article: Lithospheric structure of the southern Amazonian Craton from multiple-frequency seismic tomography: Preliminary insights on tectonic and metallogenic implications
Lithospheric structure of the southern Amazonian Craton from multiple-frequency seismic tomography: Preliminary insights on tectonic and metallogenic implications Open
Multiple-frequency tomographic model database for the Amazonian craton published in the Journal of South American Earth Sciences (https://doi.org/10.1016/j.jsames.2020.102608)
View article: Lithospheric structure of the southern Amazonian Craton from multiple-frequency seismic tomography: Preliminary insights on tectonic and metallogenic implications
Lithospheric structure of the southern Amazonian Craton from multiple-frequency seismic tomography: Preliminary insights on tectonic and metallogenic implications Open
Multiple-frequency tomographic model database for the Amazonian craton published in the Journal of South American Earth Sciences (https://doi.org/10.1016/j.jsames.2020.102608)
View article: Lithospheric structure of the southern Amazonian Craton from multiple-frequency seismic tomography: Preliminary insights on tectonic and metallogenic implications
Lithospheric structure of the southern Amazonian Craton from multiple-frequency seismic tomography: Preliminary insights on tectonic and metallogenic implications Open
Multiple-frequency tomographic model database for the Amazonian craton
View article: Lithospheric structure of the southern Amazonian Craton from multiple-frequency seismic tomography: Preliminary insights on tectonic and metallogenic implications
Lithospheric structure of the southern Amazonian Craton from multiple-frequency seismic tomography: Preliminary insights on tectonic and metallogenic implications Open
Multiple-frequency tomographic model database for the Amazonian craton submitted to Geophysical Journal International
View article: Lithospheric structure of the southern Amazonian Craton from multiple-frequency seismic tomography: Preliminary insights on tectonic and metallogenic implications
Lithospheric structure of the southern Amazonian Craton from multiple-frequency seismic tomography: Preliminary insights on tectonic and metallogenic implications Open
Multiple-frequency tomographic model database for the Amazonian craton submitted to Geophysical Journal International
View article: Reassessment of the geology of the southeastern Tapajós Gold Province, Amazonian Craton, Brazil, based on field, petrographic, and airborne geophysical data
Reassessment of the geology of the southeastern Tapajós Gold Province, Amazonian Craton, Brazil, based on field, petrographic, and airborne geophysical data Open
The Tapajós Gold Province, central portion of the Amazonian Craton, is one of the main metallogenic provinces in Brazil, but lack geological studies at an appropriate scale in its southeastern portion. Fieldwork, petrography, and high-reso…
View article: The Paleoproterozoic metaconglomerate-hosted Castelo de Sonhos gold deposit, Tapajós Gold Province, Amazonian Craton: a modified paleoplacer origin
The Paleoproterozoic metaconglomerate-hosted Castelo de Sonhos gold deposit, Tapajós Gold Province, Amazonian Craton: a modified paleoplacer origin Open
The Castelo de Sonhos gold deposit (~1.5 Moz Au) is located in the southeastern Tapajós Gold Province and is hosted in variably deformed metaconglomerates and metasandstones of the Castelo dos Sonhos Formation, which was deposited between …
View article: The Novo Progresso Formation, Tapajós Gold Province, Amazonian Craton: zircon U-Pb and Lu-Hf constraints on the maximum depositional age, reconnaissance provenance study, and tectonic implications
The Novo Progresso Formation, Tapajós Gold Province, Amazonian Craton: zircon U-Pb and Lu-Hf constraints on the maximum depositional age, reconnaissance provenance study, and tectonic implications Open
The Novo Progresso Formation, located in southeastern Tapajós Gold Province, at its boundary with the Iriri-Xingu Domain, south of the Amazonian Craton, is composed of quartz- and lithic-arenites and siltstones with volcanic/volcanoclastic…
View article: U-Pb (LA-ICP-MS) of detrital zircon and whole rock Nd and geochemical constraints on the provenance, depositional age and tectonic setting of the metasedimentary Piriá Basin, northern Brazil: implications for the evolution of the Gurupi Belt
U-Pb (LA-ICP-MS) of detrital zircon and whole rock Nd and geochemical constraints on the provenance, depositional age and tectonic setting of the metasedimentary Piriá Basin, northern Brazil: implications for the evolution of the Gurupi Belt Open
The Piriá Basin (Piriá Formation) is a hemi-graben shaped basin that developed over Precambrian rocks of the Gurupi Belt. The lithological content comprises four interfingered lithofacies: (1) arkose and greywacke with pelite layers, (2) l…
View article: U-Pb (LA-ICP-MS) of detrital zircon and whole rock Nd and geochemical constraints on the provenance, depositional age and tectonic setting of the metasedimentary Piriá Basin, northern Brazil: implications for the evolution of the Gurupi Belt
U-Pb (LA-ICP-MS) of detrital zircon and whole rock Nd and geochemical constraints on the provenance, depositional age and tectonic setting of the metasedimentary Piriá Basin, northern Brazil: implications for the evolution of the Gurupi Belt Open
The Piriá Basin (Piriá Formation) is a hemi-graben shaped basin that developed over Precambrian rocks of the Gurupi Belt. The lithological content comprises four interfingered lithofacies: (1) arkose and greywacke with pelite layers, (2) l…
View article: Deposition and tectonic setting of the Palaeoproterozoic Castelo dos Sonhos metasedimentary formation, Tapajós Gold Province, Amazonian Craton, Brazil: age and isotopic constraints
Deposition and tectonic setting of the Palaeoproterozoic Castelo dos Sonhos metasedimentary formation, Tapajós Gold Province, Amazonian Craton, Brazil: age and isotopic constraints Open
The Castelo dos Sonhos Formation (CSF) represents a relic of a sedimentary basin located in the southeastern Tapajós Gold Province (TGP), at its boundary with the Iriri–Xingu Domain (IX), south of the Amazonian Craton. The formation compri…