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- W1886629639 abstract "Abstract The Neoproterozoic Major Isidoro batholith (∼100 km 2 ), composed of metaluminous to slightly peraluminous magmatic epidote-bearing tonalite to granite, is part of the Aguas Belas–Caninde composite batholith, which intruded the Pernambuco–Alagoas Domain of the Borborema Province, northeastern Brazil. These rocks contain biotite, amphibole, titanite and epidote that often shows an allanite core as key mafic mineral phases. K-diorite mafic enclaves are abundant in this pluton as well as are amphibole-rich clots. The plutonic rocks are medium-to high-K calc-alkaline, with SiO 2 varying from 59.1 to 71.6%, Fe# from 0.6 to 0.9 and total alkalis from 6.1 to 8.5%. Chondrite-normalized REE patterns are moderately fractionated, show (La/Lu) N ratios from 13.6 to 31.8 and discrete negative Eu anomalies (0.48–0.85). Incompatible-element spidergrams exhibit negative Nb–Ta and Ti anomalies. This batholith was emplaced around 627 Ma (U–Pb SHRIMP zircon age) coevally with an amphibolite-facies metamorphic event in the region. It shows Nd-model age varying from 1.1 to 1.4 Ga, average eNd (627Ma) of −1.60 and back-calculated (627 Ma) initial 87 Sr/ 86 Sr ratios from 0.7069 to 0.7086. Inherited zircon cores that yielded 206 Pb/ 238 U ages from 800 to 1000 Ma are likely derived from rocks formed during the Cariris Velhos (1.1–0.9 Ga) orogenic event. These isotopic data coupled with calculated δ 18 O(w.r.) value of +8.75‰ VSMOW indicate an I-type source and suggest a reworked lower continental crust as source rock. A granodioritic orthogneiss next to the Major Isidoro pluton, emplaced along the Jacare dos Homens transpressional shear zone, yielded a U–Pb SHRIMP zircon age of 642 Ma, recording early tectonic movements along this shear zone that separates the Pernambuco–Alagoas Domain to the north, from the Sergipano Domain to the south. The emplacement of the Major Isidoro pluton was synkinematic, coeval with the development of a regional flat-lying foliation, probably during the peak of metamorphism related to the convergence/contractional deformation of the Sao Francisco craton and Pernambuco–Alagoas block during the Brasiliano Orogeny." @default.
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- W1886629639 date "2015-12-01" @default.
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- W1886629639 title "Synkinematic emplacement of the magmatic epidote bearing Major Isidoro tonalite-granite batholith: Relicts of an Ediacaran continental arc in the Pernambuco–Alagoas domain, Borborema Province, NE Brazil" @default.
- W1886629639 cites W1971685925 @default.
- W1886629639 cites W1977039791 @default.
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- W1886629639 cites W1988462112 @default.
- W1886629639 cites W1995487471 @default.
- W1886629639 cites W2005787297 @default.
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- W1886629639 cites W2023515382 @default.
- W1886629639 cites W2025727391 @default.
- W1886629639 cites W2026245988 @default.
- W1886629639 cites W2027597710 @default.
- W1886629639 cites W2034817985 @default.
- W1886629639 cites W2041943440 @default.
- W1886629639 cites W2044160890 @default.
- W1886629639 cites W2046381597 @default.
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- W1886629639 cites W2050144238 @default.
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- W1886629639 cites W2059010589 @default.
- W1886629639 cites W2063124836 @default.
- W1886629639 cites W2067988600 @default.
- W1886629639 cites W2068307625 @default.
- W1886629639 cites W2069749143 @default.
- W1886629639 cites W2078105240 @default.
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- W1886629639 cites W2118503429 @default.
- W1886629639 cites W2130119150 @default.
- W1886629639 cites W2131630011 @default.
- W1886629639 cites W2135769861 @default.
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- W1886629639 doi "https://doi.org/10.1016/j.jsames.2015.09.002" @default.
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