[PDF] Top 20 ARCHEAN EVOLUTION OF THE SOUTHERN SÃO FRANCISCO CRATON (SE BRAZIL)
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ARCHEAN EVOLUTION OF THE SOUTHERN SÃO FRANCISCO CRATON (SE BRAZIL)
... at the southernmost end of the São Francisco craton in eastern ...composed of Archean greenstone and overlying Neoarchean-Paleoproterozoic sedimentary rocks occurs in ... See full document
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REPOSITORIO INSTITUCIONAL DA UFOP: New evidence of Neoarchean crustal growth in southern São Francisco Craton : the Carmópolis de Minas Layered Suite, Minas Gerais, Brazil.
... ABSTRACT: The Carmópolis de Minas Layered Suite is situated in the Campo Belo Metamorphic Complex domain, Minas Gerais, SE Brazil, which, together with other metamorphic complexes in the surroundings ... See full document
15
Palaeoproterozoic assembly of the São Francisco craton, SE Brazil: New insights from U–Pb titanite and monazite dating
... assembly of the southern São Francisco craton (SSFC) and its margins is of particular interest because it combines arc related magmatism, amphibolite to granulite facies ... See full document
21
REPOSITORIO INSTITUCIONAL DA UFOP: Stabilization of the southern portion of the São Francisco craton, SE Brazil, through a long-lived period of potassic magmatism.
... crustal reworking in southern São Francisco Craton (Minas Gerais, Brazil). O Complexo Metamórfico Bonfim Setentrional (Quadrilátero Ferrífero, Minas 816[r] ... See full document
48
Tectonic implications of Precambrian Sm–Nd dates from the southern Sa˜o Francisco craton and adjacent Arac¸uaı´ and Ribeira belts, Brazil
... that the protoliths were either fragments of the Sa˜o Francisco craton crust or were sediments derived from that craton, which presumably had been stretched to form a thinned ... See full document
15
Proterozoic first-order sedimentary sequences of the São Francisco craton, eastern Brazil
... concept of 1st-order sequence adopted in the present paper was postulated by Martins-Neto et ...lack of time control, an approach based on the stratigraphic hierarchy is considered the ... See full document
13
Transamazonian Orogeny in the Southern Sa˜o Francisco Craton Region, Minas Gerais, Brazil: evidence for Paleoproterozoic collision and collapse in the Quadrila´tero Ferrı´fero
... das formac¸o˜es ferrı´feras bandadas do Supergrupo Minas e Alkmim, F.F., 1985. Sedimentologische, lithostratigraphische sua correlac¸a˜o com aquelas da A ´ frica do Sul e Austra´lia. In: und tektonische Untersuchungen in ... See full document
30
Tectonic evolution of the southern margin of the Amazonian craton in the late Mesoproterozoic based on field relationships and zircon U-Pb geochronology
... over the cratonic area formed by the amalgamation of the Paraguá block and Amazonian craton during the early-middle Mesoproterozoic, the Nova Brasilândia, Aguapeí and ... See full document
28
Petrology of Gameleira Potassic Lamprophyres, São Francisco Craton
... In the Neoproterozoic, the best examples are the southern occurrences of undersaturated and saturated syenitic province (PASEBA; Rosa et ...During the last twenty years numerous ... See full document
22
REPOSITORIO INSTITUCIONAL DA UFOP: The southern Araçuaí belt and the Dom Silvério Group : geologic architecture and tectonic significance.
... features: the Araçuaí belt and the crystalline core ...to the original definition by Almeida (1977), the Araçuaí belt corresponds to the fold-thrust belt developed along the ... See full document
20
Constraints on the Statherian evolution of the intraplate rifting in a Paleo-Mesoproterozoic paleocontinent: New stratigraphic and geochronology record from the eastern São Francisco craton
... approach of stratigraphic analysis and U–Pb age dating reveals some information on the tectono- sedimentary evolution of the Statherian cover of the São Francisco ... See full document
21
Interpretation of the geomagnetic anomalies in the São Francisco craton region based on champ mission data
... tectonic evolution of the S˜ao Francisco Craton region features five stages of deforming events (Alkmim, 2004), where stage I is the Rio das Velhas/Jequi´e event ...events ... See full document
9
Braz. J. Geol. vol.46 suppl.1
... Brazil, the Bambuí Basin covers most of the São Francisco Craton, showing some glacial deposits in the Carrancas Formation, which is covered by a thick carbonate unit known as ... See full document
18
3.30 Ga high-silica intraplate volcanic - REPOSITORIO INSTITUCIONAL DA UFOP: 3.30 Ga high-silica intraplate volcanic–plutonic system of the Gavião Block, São Francisco Craton, Brazil : evidence of an intracontinental rift following the creation of insulat
... Specifically, the rhyolites would have derived from extraction and eruption of highly silicic residual liquid formed by crystallization of granitic magma in a relatively shallow (b10 km) reservoir, ... See full document
21
Braz. J. Geol. vol.47 número2
... mark the Upper Paleoproterozoic and Mesoproterozoic (Fig. 8). In São Francisco Craton, the onset of Espinhaço Supergroup deposition relates to an extensive acidic to intermediate vol‑ ... See full document
13
REPOSITORIO INSTITUCIONAL DA UFOP: Geochemistry, Nd isotopes and U–Pb geochronology of a 2350 Ma TTG suite, Minas Gerais, Brazil: implications for the crustal evolution of the southern São Francisco craton.
... and the Mg#. Because both the CaO content and the Mg# are affected by hornblende and plagioclase, geochemical variations against these proxies can be used to examine the influ- ence of ... See full document
20
Campo Belo Metamorphic Complex: Tectonic Evolution of an Archean sialic crust of the southern São Francisco Craton in Minas Gerais (Brazil)
... with the amphibolite-granulite fa- cies (Pactunç 1984), the mineral assemblages of the schists (quartz ± plagioclase ± sillimanite ± garnet) and quartzites (quartz ± sillimanite ± garnet ± bi- ... See full document
19
FUNDAÇÃO UNIVERSIDADE FEDERAL DE OURO PRETO
... now, the foremost aim of geochronological research has been to settle the timing of the crust formation in the Campo Belo Metamorphic Complex (CBC), with limited emphasis on its ... See full document
156
Research Paper Evolution of Siderian juvenile crust to Rhyacian high Ba-Sr magmatism in the Mineiro Belt, southern São Francisco Craton
... from the Mineiro Belt, Brazil record a delayed onset of the transition from TTG to sanukitoid-type magmatism (high Ba-Sr), starting during the Siderian magmatic lull when little juvenile magma ... See full document
19
U-Pb evidence for Late Neoarchean crustal reworking in the southern São Francisco Craton (Minas Gerais, Brazil)
... times of crystallization of the protolith, gneissi- fication and reworking of the gneissic ...during the Rio das Velhas Tectonothermal Event (Carneiro 1992, Machado and Carneiro ... See full document
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