[HTML][HTML] A geochronological review of magmatism along the external margin of Columbia and in the Grenville-age orogens forming the core of Rodinia
A total of 4344 magmatic U-Pb ages in the range 2300 to 800 Ma have been compiled from
the Great Proterozoic Accretionary Orogen along the margin of the Columbia/Nuna …
the Great Proterozoic Accretionary Orogen along the margin of the Columbia/Nuna …
Cryptic trans-lithospheric fault systems at the western margin of South America: implications for the formation and localization of gold-rich deposit superclusters
We present a review of frontier research advances in the investigation of cryptic structures
that transect the South American Andes at oblique strike directions. The intersections …
that transect the South American Andes at oblique strike directions. The intersections …
A multi-disciplinary geophysical approach reveals a Paleoproterozoic cryptic suture in the Amazon Craton–Implications for Proterozoic Supercontinent reconstructions
Abstract The Amazon Craton evolved in the Paleo-Mesoproterozoic through successive
continental magmatic arcs, which ages decrease westwards. However, when and if these …
continental magmatic arcs, which ages decrease westwards. However, when and if these …
Growing the Paleo-to Mesoproterozoic margin of the SW Amazonia and the transition from an accretionary to a collisional system
Despite a general consensus of a petrogenetic link in Paleo-to Mesoproterozoic times
between the Rio Apa Terrane (RAT) and the Ventuari-Tapajós and Rio Negro-Juruena …
between the Rio Apa Terrane (RAT) and the Ventuari-Tapajós and Rio Negro-Juruena …
Tectonic and metallogenic implications of a metasomatized mantle inferred from magnetotellurics and gravity data: An example of Tapajós Mineral Province, Amazon …
Abstract The Tapajós Mineral Province (TMP) contains evidence of subduction processes
during the Paleoproterozoic. Despite well-documented arc magmatism, the lack of solid …
during the Paleoproterozoic. Despite well-documented arc magmatism, the lack of solid …
[HTML][HTML] Unwrap** reworked crust at the Columbia supercontinent margin within central southern Amazon Craton using multi-source geophysics and geochronology …
The geometry and evolution of pre-existing basement in accretionary belts bordering
supercontinents are often unclear. Integrative interpretation of long-wavelength potential …
supercontinents are often unclear. Integrative interpretation of long-wavelength potential …
A dynamic atlas of interference patterns in superimposed, opposite sense ductile shear zones
Ductile shear zones that reactivate a coplanar shear zone with opposite shear sense are
known from a variety of tectonic environments. Recognition of reactivation requires …
known from a variety of tectonic environments. Recognition of reactivation requires …
[HTML][HTML] Machine learning methods for quantifying uncertainty in prospectivity map** of magmatic-hydrothermal gold deposits: A case study from Juruena mineral …
V Silva dos Santos, E Gloaguen, V Hector Abud Louro… - Minerals, 2022 - mdpi.com
Mineral prospectivity map** (MPM), like other geoscience fields, is subject to a variety of
uncertainties. When data about unfavorable sites to find deposits (ie, drill intersections to …
uncertainties. When data about unfavorable sites to find deposits (ie, drill intersections to …
Paleomagnetism of the Rio Perdido mafic dike swarm (1110 Ma) and the paleogeography of Amazonia and its role for supercontinents Rodinia and Gondwana
Abstract The Rio Apa Terrane (RAT) is situated at the south end of the Amazonian Craton
(AC) separated from it by the aulacogen Tucavaca belt. It encompasses basement rocks that …
(AC) separated from it by the aulacogen Tucavaca belt. It encompasses basement rocks that …
[HTML][HTML] New U-Pb baddeleyite ages and geochemistry of mafic rocks of Matthews Ridge, NW Guyana: Extension of the Paleoproterozoic Avanavero Large Igneous …
BB de Carvalho, B Cousens, K Chamberlain, R Ernst… - Lithos, 2025 - Elsevier
Avanavero mafic dykes and sills are widespread in the Amazonian craton, South America.
Although the complete extent of Avanavero magmatism is currently unclear, similar …
Although the complete extent of Avanavero magmatism is currently unclear, similar …