Programa Levantamentos Geologicos e Potencial de Novas Fronteiras; Projeto Geologia e Metalogenia... more Programa Levantamentos Geologicos e Potencial de Novas Fronteiras; Projeto Geologia e Metalogenia do Arco-magmatico de Goias-Arenopolis
Programa Novas Fronteiras: Levantamento Geologico e potencial de Novas Fronteiras. Projeto Oeste ... more Programa Novas Fronteiras: Levantamento Geologico e potencial de Novas Fronteiras. Projeto Oeste de Goias
Programa Novas Fronteiras: Levantamento Geologico e potencial de Novas Fronteiras. Projeto Oeste ... more Programa Novas Fronteiras: Levantamento Geologico e potencial de Novas Fronteiras. Projeto Oeste de Goias
The Capané Antiform, located in the northern part of the Neoproterozoic Porongos Metamorphic Comp... more The Capané Antiform, located in the northern part of the Neoproterozoic Porongos Metamorphic Complex (RS), is composed of a supracrustal sequence metamorphosed under greenschist (eastern flank) to amphibolite (western flank) facies. Four groups of rocks were recognized. Groups 1 and 2 are constituted of felsic and mafic rocks from the central and western part of the antiform, respectively. They show high LREE and LILE and low HREE and HFSE. The εNd (t) varies from strongly negative (-20) in felsic rocks to moderately negative (-6 to -11) in mafic rocks, with Nd TDM ages that varies from Paleoproterozoic to Mesoproterozoic. The Group 3 consists of metarhyolites from the eastern flank and is geochemically similar to former groups, but shows differences in Nd isotope composition. The εNd(t) is slightly negative (-2 to -4) and the model ages are restricted to the Mesoproterozoic. Group 4, constituted of metabasalts, shows chemical similarities with OIB-MORB and has juvenile isotope sign...
Programa Levantamentos Geologicos e Potencial de Novas Fronteiras; Projeto Geologia e Metalogenia... more Programa Levantamentos Geologicos e Potencial de Novas Fronteiras; Projeto Geologia e Metalogenia do Arco-magmatico de Goias-Arenopolis
Programa Novas Fronteiras: Levantamento Geologico e potencial de Novas Fronteiras. Projeto Oeste ... more Programa Novas Fronteiras: Levantamento Geologico e potencial de Novas Fronteiras. Projeto Oeste de Goias
Programa Novas Fronteiras: Levantamento Geologico e potencial de Novas Fronteiras. Projeto Oeste ... more Programa Novas Fronteiras: Levantamento Geologico e potencial de Novas Fronteiras. Projeto Oeste de Goias
The Capané Antiform, located in the northern part of the Neoproterozoic Porongos Metamorphic Comp... more The Capané Antiform, located in the northern part of the Neoproterozoic Porongos Metamorphic Complex (RS), is composed of a supracrustal sequence metamorphosed under greenschist (eastern flank) to amphibolite (western flank) facies. Four groups of rocks were recognized. Groups 1 and 2 are constituted of felsic and mafic rocks from the central and western part of the antiform, respectively. They show high LREE and LILE and low HREE and HFSE. The εNd (t) varies from strongly negative (-20) in felsic rocks to moderately negative (-6 to -11) in mafic rocks, with Nd TDM ages that varies from Paleoproterozoic to Mesoproterozoic. The Group 3 consists of metarhyolites from the eastern flank and is geochemically similar to former groups, but shows differences in Nd isotope composition. The εNd(t) is slightly negative (-2 to -4) and the model ages are restricted to the Mesoproterozoic. Group 4, constituted of metabasalts, shows chemical similarities with OIB-MORB and has juvenile isotope sign...
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