Results 151 to 160 of about 307,990 (205)

Metamorphism overprint in mafic-ultramafic cumulates in the Mangabal and Americano do Brasil Complexes, Brasilia Belt, Brazil

Journal of the Geological Society
The Americano do Brasil and Mangabal Complexes belong to a cluster of Neoproterozoic mafic-ultramafic intrusions in the southern Goiás Magmatic Arc in Brazil.
C. Augustin, J. E. Mungall, M. E. Schutesky, Richard E. Ernst   +3 more
semanticscholar   +1 more source

U–Pb ages of detrital zircon grains for the Canastra Group and Passos Nappe units and U–Pb and Lu–Hf isotope analyses from orthogneisses: Provenance and tectonic implications, southern Brasília Belt, Brazil

, 2020
The age and tectonic setting of Mesoproterozoic to Neoproterozoic covers that occur along the southwestern margins of the Sao Francisco Craton (SFC) are still uncertain.
Alex J.C.A. Silva, L. S. Simões, S. A. Dufrane, L. A. Alkmin, R. I. Cerri   +4 more
semanticscholar   +1 more source

The Metallogeny of Gold, Iron and Lead-Zinc Deposits of the Quadrilátero Ferrifero (São Francisco Craton) and Brasilia Belt (Paracatu And Vazante Districts)

This guidebook presents the itinerary, activities, relevant research information, and geologic context for the 2024 Ronald E. Seavoy Student Field Trip in the Quadrilátero Ferrifero and Brasilia Belt of Brazil, which took place June 1st through 9th, 2024.

semanticscholar   +1 more source

Conditions of ultra-high temperature metamorphism and its retrogression in the Neoproterozoic Anápolis-Itauçu Complex of the Brasília Fold Belt

Journal of the Geological Society
The Anápolis-Itauçu Complex is part of the Neoproterozoic Brasília Fold Belt and constitutes its metamorphic core, or internal zone. It is constituted of granulites and layered mafic and granite bodies.
Renato Moraes, Giovanna Sayuri Domingues Kawai, Mario da Costa Campos Neto   +2 more
semanticscholar   +1 more source

Tonian Intra-Oceanic Magmatism as the source of the Goiás Porphyry Copper-Gold System in the Brasília Orogenic belt: Petrogenesis and Metallogenetic Implications

Journal of the Geological Society
In the Goiás Intra-Oceanic Arc System (Goiás IOAS), Brasília Orogen, Brazil, occurrences of porphyry-type mineral deposits have been identified. The most significant of these is the Chapada Cu-Au deposit (1056 Mt Cu @ 0.24% Au @ 0.12 g/t).
Ana Tayla Rodrigues Ferreira, Claudinei Gouveia de Oliveira, Ana Paula Schuertz Costa   +2 more
semanticscholar   +1 more source

Petrogenesis of the Córrego das Campinas Gabbro-Anorthosite Suite: Characterization of a Neoproterozoic massif-type anorthosite in the Goiás Magmatic Arc and its significance in the evolution of the Brasília belt, Brazil

Journal of South American Earth Sciences, 2022
Fernando Santos Diener, R. Fuck, N. Botelho, H. J. Polo, M. Pimentel, Tiago Bandeira Duarte, Gabriel Veloso Martineli, J. A. Brod   +7 more
semanticscholar   +1 more source

Kyanite-garnet granulite from the Andrelândia nappe system, Brasília belt, registers two late Neoproterozoic metamorphic cycles

, 2021
Botao Li, Botao Li, H. Massonne, H. Massonne, L. Hartmann, Junfeng Zhang, T. Luo   +6 more
semanticscholar   +1 more source

Comments on “Devonian to Permian post-orogenic denudation of the Brasília Belt of West Gondwana: insights from apatite fission track thermochronology” by Fonseca et al. (2020)

Journal of Geodynamics, 2021
L. Alessandretti, L. Warren
semanticscholar   +1 more source

Reply to the Comment on “Devonian to Permian post-orogenic denudation of the Brasília Belt of West Gondwana: insights from apatite fission track thermochronology” by Alessandretti and Warren, 2021

Journal of Geodynamics, 2021
A. Fonseca, Gabriella Vago Piffer, Simon Nachtergaele, G. Van Ranst, J. De Grave, T. Novo   +5 more
semanticscholar   +1 more source

Discovery of Precambrian deep-water turbidites and submarine volcanism in the Brasília Belt, Central Brazil: The Quilombo Formation

, 2021
J. E. G. Campos, M. Martins-Ferreira, Florença Das Graças Moura, F. Chemale   +3 more
semanticscholar   +1 more source