Results 41 to 50 of about 884 (156)

Reconstruction and Comparison of P-T Paths in the Andrelândia Nappe System, Southern Brasília Fold Belt, MG [PDF]

Geologia USP. Série Científica, 2010
The Andrelândia Nappe System consists of three main nappes, from bottom to top: the lower Andrelândia nappe, themiddle Liberdade nappe and the upper Três Pontas-Varginha nappe and associated klippen, Pouso Alto, Aiuruoca, Carvalhosand Serra da Natureza ...
Rafael Gonçalves da Motta, Renato de Moraes, Rudolph Allard Johannes Trouw, Mário da Costa Campos Neto   +3 more
doaj  

Heat and Cold Waves in Brazil: An ERA5‐Based Analysis of Trends and Seasonality (1980–2024)

International Journal of Climatology, Volume 46, Issue 6, May 2026.
This study uses ERA5 reanalysis data to assess changes in extreme heat and cold events across Brazil from 1980 to 2024. Results reveal a sharp increase in heatwave frequency and a general decline in coldwave occurrences, though regional variations are substantial.
Alindomar Lacerda Silva, Scott Sheridan
wiley   +1 more source

New near-mine prospecting approach using multivariate analysis and reflectance spectroscopy to define surface footprint: A case study of the Pequizão Gold Deposit, Crixás Greenstone Belt, Central Brazil

, 2023
The Pequizão gold deposit in the Crixás greenstone belt, central Brazil, is structurally-controlled mineralization hosted mainly in carbonaceous phyllite with pervasive hydrothermalized zones and large amounts of disseminated sulfides and gold. Usually,
Salles, Rodrigo dos Reis, Borges, Caio César Aguiar, Campos, Marcelo Pereira, Ducart, Diego Fernando, Toledo, Catarina Labouré Bemfica, Campos, Luana Machado, Silva, Adalene Moreira, Santos, Anderson M., Santos, Bruno Araújo dos   +8 more
core   +1 more source

Global Environmental Forcing of Coastal Waterline Variability Across Seasonal to Interannual Timescales

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract The position of the coastal waterline—the interface between land and sea—varies over time due to sedimentary and hydrodynamic processes influenced by climate variability. While previous studies have mainly focused on local morphodynamic or storm‐driven shoreline changes, the large‐scale climatic controls on global waterline variability remain ...
Rafael Almar, Julien Boucharel, Gregoire O. Abessolo, Marcan Graffin, Gregoire Thoumyre, Fabrice Papa, Erwin W. J. Bergsma, Edward Anthony, Angelique Melet, Vincent Regard   +9 more
wiley   +1 more source

Controle estrutural da mineralização de ouro no Greenstone Belt Faina, Brasil Central

, 2022
Dissertação (mestrado) — Universidade de Brasília, Instituto de Geociências, Programa de Pós-Graduação em Geologia, 2022.O greenstone belt Faina está inserido no Domínio Crixás-Goiás, um dos principais componentes do Maciço de Goiás localizado na porção ...
Araújo, Kawinã Cardoso de
core  

Neoproterozoic Anatexis of 2.9 Ga Old Granitoids in the Goiás-Crixás Archean Block, Central Brazil: Evidence From New SHRIMP U-Pb Data and Sm-Nd Isotopes [PDF]

Geologia USP. Série Científica, 2003
The first SHRIMP U-Pb ages for granitoid rocks from the southern part of the Goiás-Crixás Archean Block (Caiçara andUvá complexes) are presented and discussed in combination with Sm-Nd isotopic data in order to elucidate the main aspectsof the geological
Márcio Martins Pimentel, Hardy Jost, Reinhardt Adolfo Fuck, Richard Austin Armstrong, Elton Luiz Dantas, Alain Potrel   +5 more
doaj  

From Extension to Strike‐Slip Faulting Along the Western Continuation of the North Anatolian Fault in the Northern Aegean Sea: Structural, Geochronological and Geochemical Constraints

Tectonics, Volume 45, Issue 4, April 2026.
Abstract The Northern Aegean region preserves a complex deformation pattern shaped by Miocene extension driven by retreat of the Hellenic subduction system, later overprinted by Plio–Pleistocene transtension linked to the westward propagation of the North Anatolian Fault (NAF). Although numerous structural, geophysical and geochronological studies have
L. R. Berio, E. L. Dantas, A. Kylander‐Clark, R. L. Muniz, M. Pizzati, F. Storti, G. Viola, F. Balsamo   +7 more
wiley   +1 more source

Metamorphic modeling and petrochronology of metapelitic rocks from the Luminárias Nappe, southern Brasília belt (SE Brazil)

, 2019
The Luminárias Nappe was formed in the agglutination of West Gondwana. A high-pressure metamorphic gradient oblique to the geological contacts is recorded in metapelitic rocks from this Nappe.
Silvio Roberto Farias Vlach (5836799), Renato Moraes (2551612), Monica Heilbron (2841230), Regiane Andrade Fumes (6826121), George Luiz Luvizotto (4719522)   +4 more
core   +1 more source

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

Sedimentology, Volume 73, Issue 3, Page 802-837, April 2026.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti, Marta Barbarano, Mara Limonta, Guido Pastore, Pieter Vermeesch, Giovanni Vezzoli   +5 more
wiley   +1 more source

NOVAS IDADES U-Pb EM ZIRCÃO POR LA-ICP-MS DE METAGRANITOIDES DA ZONA DE INTERFERÊNCIA ENTRE A FAIXA BRASÍLIA SUL E A FAIXA RIBEIRA CENTRAL, NA REGIÃO SUL DO ESTADO DO RIO DE JANEIRO, BRASIL: New U-Pb Zircon Ages by LA-ICP-MS of Metagranitoids of Interference Zone between the Southern Brasília Belt and the Central Ribeira Belt, in South Region of Rio de Janeiro State, Brazil

, 2022
In the towns of Resende and Itatiaia, south of Rio de Janeiro State, there are magmatic rock bodies traditionally inserted in the geotectonic context of the Ribeira belt.
SIMAS, Marcela, MACEDO, Bruno Neves, PETERNEL, Rodrigo, GERALDES, Mauro Cesar   +3 more
core