Paleomagnetism of the Amazonian Craton and its role in paleocontinents [PDF]
Brazilian Journal of Geology, 2016 : In the last decade, the participation of the Amazonian Craton on Precambrian supercontinents has been clarified thanks to a wealth of new paleomagnetic data.
Manoel Souza D'Agrella-Filho +3 more
doaj +4 more sources
Archean crust and metallogenic zones in the Amazonian Craton sensed by satellite gravity data. [PDF]
Sci Rep, 2019 AbstractThe formation of ore deposits has been extensively studied from a shallow crust perspective. In contrast, the association of mineral systems with deep crustal structure of their host terranes remains relatively undisclosed, and there is evidence that processes throughout the lithosphere are coupled for their evolution.
Motta JG +3 more
europepmc +7 more sources
Intense weathering attending the emergence of the SE Amazonian Craton during the Neoarchean
Journal of the Geological SocietySedimentological evidence and detrital zircon provenance analysis show that the Amazonian Craton, Brazil, was subjected to large-scale subaerial erosion by c. 2.7 Ga. To assess weathering conditions attending the emergence of the Amazonian Craton, we used the chemical composition of ...
Rossignol, Camille +5 more
openaire +4 more sources
Extensional exhumation of cratons: insights from the Early Cretaceous Rio Negro–Juruena belt (Amazonian Craton, Colombia) [PDF]
Solid Earth, 2023 This study presents results from apatite fission track (AFT) thermochronology to investigate the thermal history and exhumation dynamics of the Rio Negro–Juruena basement, situated within the western Guiana Shield of the Amazonian Craton.
A. Fonseca +4 more
doaj +5 more sources
Geological Society, London, Special Publications, 2021 Abstract This paper overviews the Proterozoic large igneous provinces (LIPs) of the Amazonian Craton, characterized by large volumes of extrusive and intrusive magmatic rocks. We reassess the geologic, geochronological and geochemical information to stablish three intracontinental felsic volcanic–plutonic igneous belts (i.e.
Nelson Joaquim Reis +5 more
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Brazilian Journal of Geology, 2019 The Iriri-Xingu domain, located in the central part of the Amazonian craton, consists of extensive occurrences of Paleoproterozoic volcanic rocks and granites with published ages of ca.
Marcelo Lacerda Vasquez +5 more
doaj +2 more sources
The Amazonian Craton and its influence on past fluvial systems (Mesozoic-Cenozoic, Amazonia)
, 2010 The Amazonian Craton is an old geological feature of Archaean/Proterozoic age that has determined the character of fluvial systems in Amazonia throughout most of its past. This situation radically changed during the Cenozoic, when uplift of the Andes reshaped the relief and drainage patterns of northern South America.
Hoorn, C. +6 more
openaire +4 more sources
Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +1 more source
Weight-Length Ratio of Piranhas <i>Serrasalmus</i> (Characiformes, Serrasalmidae) in Bolivia: Relationships to Molecular Divergence and Maximum Size? [PDF]
Ecol EvolThis study presents WLRs of nine piranha or palometa fish species of genus Serrasalmus present in the Amazon and La Plata basins of Bolivia and compares differences with genetic divergence (mtDNA COI locus) and the observed maximum size. All species showed an exponential (power type) growth pattern, and all WLRs were significantly different among all ...
Carvajal-Vallejos FM +3 more
europepmc +2 more sources
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Ignite Amazonian Sunrise Drops
core +1 more source