Results 91 to 100 of about 62,283 (208)

Favorability potential for IOCG type deposits in the Riacho do Pontal Belt: new insights for identifying prospects of IOCG-type deposits in NE Brazil

Brazilian Journal of Geology, 2018
: Archean iron oxide-copper-gold (IOCG) deposits have been systematically described in the world class Carajás IOCG district, Amazonian region of Brazil. More recently, several Neoproterozoic (ca 1.13 to 0.96 Ga) IOCG deposits have been identified in the
Sérgio Roberto Bacelar Hühn, Adalene Moreira Silva   +1 more
doaj   +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

Unwrapping reworked crust at the Columbia supercontinent margin within Amazonian Craton using satellite potential field data synergy

, 2020
This file contains the geochronology data inventory (Supplementary Material Table 1) as a MS Excel (*.xls) table used for interpretation in the the original publication of 'Unwrapping reworked crust at the Columbia supercontinent margin within Amazonian
João G. Motta, Peter G. Betts, Vinícius T. Meira, Carlos R. de Souza Filho, Verônica G. Trevisan   +4 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

SiO2-saturated potassic alkaline magmatism in the central Amazonian Craton, southernmost Uatumã-Anauá Domain, NE Amazonas, Brazil

Brazilian Journal of Geology
: This paper approaches the record of SiO2-saturated potassic alkaline magmatism of Castanhal Quartz Monzonite, Mapuera Suite, and Ladeira da Vovó Quartz Syenite. These samples are located near the Northern border of the Amazon Basin. Such rocks show K2O
Cristóvão da Silva Valério, Moacir José Buenano Macambira, Valmir da Silva Souza, Elton Luiz Dantas   +3 more
doaj   +1 more source

The Paleoproterozoic metaconglomerate-hosted Castelo de Sonhos gold deposit, Tapajós Gold Province, Amazonian Craton: a modified paleoplacer origin

Journal of the Geological Survey of Brazil, 2018
The Castelo de Sonhos gold deposit (~1.5 Moz Au) is located in the southeastern Tapajós Gold Province and is hosted in variably deformed metaconglomerates and metasandstones of the Castelo dos Sonhos Formation, which was deposited between 2011 and 2050 ...
Joana Queiroz, Evandro Klein
doaj   +1 more source

88th Annual Meeting of the Meteoritical Society 2026: Abstracts

Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley   +1 more source

Contribuição ao estudo do magmatismo Paleo e Mesoproterozóico do SW do Craton Amazônico através da aplicação de isótopos estáveis de O, H e S Contribution to the study of the Paleo and Mesoproterozoic magmatism of the SW Amazonian craton based on stable isotopes of O, H and S

Acta Amazonica, 2008
Os isótopos estáveis de O, H e S foram utilizados para investigar a origem das rochas magmáticas nos Terrenos Jauru e Pontes e Lacerda do SW do Craton Amazônico, estado de Mato Grosso, Brasil.
Mauro Cesar Geraldes, Wilson Teixeira, Claudia Sayão Valladares   +2 more
doaj   +1 more source

Re-os isotope constraints on the age of the Lithospheric mantle beneath western Greenland. [PDF]

, 2007
Alkaline magmatic activity across Western Greenland (W.G.) provides a record of lithosphere evolution over the last 600 Ma. Ultra Mafic Lamprophyre (UML) magmatism in particular has erupted an exceptional inventory of mantle xenoliths allowing a detailed
Webb, Michelle
core  

U-Pb zircon ages of rocks from the Amazonas Territory of Colombia and their bearing on the tectonic history of the NW sector of the Amazonian Craton

Brazilian Journal of Geology
: Here we report the results of several U-Pb zircon ages, made to generate an integrated history for the Rio Negro-Juruena tectonic province, for the northwestern part of the Amazonian Craton.
Umberto Giuseppe Cordani, Kei Sato, Walter Sproessner, Fabiana Santos Fernandes   +3 more
doaj   +1 more source