Results 61 to 70 of about 848 (205)

Depositional Interplay Between the Ancestral Rocky Mountains and Ouachita–Marathon–Sonora Orogenies: Insights From Provenance Records in the Late Palaeozoic Marfa Basin, West Texas, USA

Basin Research, Volume 38, Issue 2, March–April 2026.
Provenance records from the late Palaeozoic Marfa Basin in West Texas reveal the transition from the Ancestral Rocky Mountains to the Ouachita–Marathon–Sonora orogenies during the early Permian in SW Laurentia. ABSTRACT The Marfa Basin in West Texas is a late Palaeozoic synorogenic depocenter associated with regional deformation linked to the Ancestral
Sandra Juárez‐Zúñiga, Daniel F. Stockli, Benjamin Johnson, Timothy F. Lawton   +3 more
wiley   +1 more source

Reflectance spectroscopy applied to mapping the hydrothermal alteration at the Mamão gold deposit, Andorinhas Greenstone Belt, Carajás Mineral Province, Northern Brazil [PDF]

Brazilian Journal of Geology
The Mamão gold deposit is located in the eastern portion of the Amazonian Craton, Northern Brazil, and hosted in Archean metamafic rocks of the Andorinhas greenstone belt. Troy Resources Ltd.
Sebastião Rodrigo Cortez de Souza, Diego Fernando Ducart, Nilson Francisquini Botelho   +2 more
doaj   +1 more source

Evolution of Terrestrial Planetary Bodies and Implications for Habitability

Reviews of Geophysics, Volume 63, Issue 4, December 2025.
Abstract The terrestrial planetary bodies of our solar system—Mercury, Venus, Earth, and Mars—share a common origin through nebular accretion and early magma ocean differentiation, yet they diverged significantly in geological evolution, tectonic regimes, and habitability.
Peter A. Cawood, Eva E. Stüeken, Priyadarshi Chowdhury, Chris J. Hawkesworth, Jacob A. Mulder   +4 more
wiley   +1 more source

Machine Learning Model for Assessing Melting Pressure Conditions of the TTG Genesis: Implications for the Timing of the Onset of Global Plate Tectonics

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract Understanding the pressure conditions of the formation of tonalite‐trondhjemite‐granodiorite (TTG) series rocks is important, as these rocks are key constituents of the Archean continental crust. However, the detailed pressure history of Archean TTG gneisses remains ambiguous due to uncertainties surrounding their sources and the effects of ...
Denggang Lu, Jia Liu, Qunke Xia, Zhikang Luan, Jingjun Zhou, Kailong Yang, Eero Hanski   +6 more
wiley   +1 more source

Zircon geochronology of granitoids from the western Bacaja domain, southeastern Amazonian craton, Brazil: Neoarchean to Orosirian evolution

, 2015
New zircon U-Pb SHRIMP and Pb-evaporation data on rocks from the west part of the Bacajá domain, southeastern Amazonian craton, reveal crustal evolution marked by a succession of magmatic events from Neoarchean to Orosirian.
Armstrong, Richard, Macambira, Moacir, Vasquez, Marcelo L.   +2 more
core   +1 more source

Lithospheric structure of the southern Amazonian Craton from multiple-frequency seismic tomography: Preliminary insights on tectonic and metallogenic implications

, 2019
Multiple-frequency tomographic model database for the Amazonian craton submitted to Geophysical Journal InternationalWe included the tomographic model database in several depths, in the format: longitude (degrees), latitude (degrees), and seismic ...
Marcelo Peres Rocha, Evandro Luiz Klein, Iago Sousa Lima Costa, Marcelo Lacerda Vasquez   +3 more
core   +1 more source

A Recipe for Exotic Continental Fragment Formation: Key Constraints From Numerical Rift Models

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract The Wilson Cycle describes the opening and closing of oceans, generating new plate boundaries at continental rifts, and extinguishing ancient plate boundaries with continental collisions (creating a continental suture). However, the general view of the Wilson Cycle does not fully explain more complex tectonic scenarios.
Alan J. Yu, Erkan Gün, Kenneth J. W. McCaffrey, Philip J. Heron   +3 more
wiley   +1 more source

Seismic Imaging of the Transition From Normal to Flat Subduction in Southern Peru by Full Waveform Inversion of Teleseismic Waves

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract The high topography of the central Andes (15–28°S) is supported by thick crustal roots. The recent uplift of the Altiplano is often explained by crustal shortening and subsequent delamination of the lower crust, though its deep structure and plateau formation processes remain debated.
Li‐Yu Kan, Vadim Monteiller, Anne Socquet, Hernando Tavera, Sébastien Chevrot   +4 more
wiley   +1 more source

The Rio Dourado Intrusive Suite - 1.88 Ga A-type Granite - Southeastern Amazonian Craton - Mato Grosso - Brazil [PDF]

Geologia USP. Série Científica, 2011
The Rio Dourado Intrusive Suite (RDIS) is composed of granitic rocks which are exposed in the southeastern AmazonCraton, Central Amazon Province. These granites intruded into the Paleoproterozoic granites of the Vila Rica IntrusiveSuite.
Márcia Aparecida de Sant’Ana Barros, Márcio Martins Pimentel, Mara Luiza Barros Pita Rocha, Fernanda Rodrigues da Silva, Rosilene Aparecida Padilha, Elton Luiz Dantas, Evelin de Moura   +6 more
doaj  

Deformation and Sediment Provenance of the Forearc Basin in the Central Andes of Southern Peru

Tectonics, Volume 44, Issue 8, August 2025.
Abstract The linkages between the development of the forearc regions and the accompanying retroarc in contractional mountain belts remain unclear. In the central Andes of southern Peru, new results constrain the timing of deformation and the provenance of forearc basin fill during Cenozoic mountain building.
Brenden J. Britt, Nicholas D. Perez
wiley   +1 more source