U–Pb age of the coesite-bearing eclogite from NW Borborema Province, NE Brazil: Implications for western Gondwana assembly

2015 ◽  
Vol 28 (3) ◽  
pp. 1183-1196 ◽  
Author(s):  
Ticiano José Saraiva dos Santos ◽  
Wagner da Silva Amaral ◽  
Matheus Fernando Ancelmi ◽  
Michele Zorzetti Pitarello ◽  
Reinhardt Adolfo Fuck ◽  
...  
Keyword(s):  
Borborema Province ◽  
Western Gondwana Assembly

Neoproterozoic magmatic arc volcanism in the Borborema Province, NE Brazil: possible flare-ups and lulls and implications for western Gondwana assembly

2020 ◽  
Author(s):  
Fabrício Andrade Caxito ◽  
Camila Franco Basto ◽  
Lauro Cézar Montefalco de Lira Santos ◽  
Elton Luiz Dantas ◽  
Vladimir Cruz de Medeiros ◽  
...  
Keyword(s):  
Arc Volcanism ◽  
Magmatic Arc ◽  
Borborema Province ◽  
Western Gondwana Assembly ◽  
Neoproterozoic Magmatic Arc

Unraveling sedimentary precursors and metal enrichment of high-grade metamorphosed manganese-rich rocks from the Borborema Province, northeastern Brazil

2021 ◽  
pp. 104283
Author(s):  
Felipe Holanda dos Santos ◽  
Wagner da Silva Amaral ◽  
Kurt Konhauser ◽  
Douglas Teixeira Martins ◽  
Marco Paulo de Castro ◽  
...  
Keyword(s):  
Northeastern Brazil ◽  
High Grade ◽  
Metal Enrichment ◽  
Borborema Province

scholarly journals Decratonization by rifting enables orogenic reworking and transcurrent dispersal of old terranes in NE Brazil

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Carlos E. Ganade ◽  
Roberto F. Weinberg ◽  
Fabricio A. Caxito ◽  
Leonardo B. L. Lopes ◽  
Lucas R. Tesser ◽  
...  
Keyword(s):  
Shear Zones ◽  
Boundary Region ◽  
The North ◽  
Pan African ◽  
Juvenile Material ◽  
Oceanic Basin ◽  
Borborema Province ◽  
Isotopic Model ◽  
Late Neoproterozoic

AbstractDispersion and deformation of cratonic fragments within orogens require weakening of the craton margins in a process of decratonization. The orogenic Borborema Province, in NE Brazil, is one of several Brasiliano/Pan-African late Neoproterozoic orogens that led to the amalgamation of Gondwana. A common feature of these orogens is that a period of extension and opening of narrow oceans preceded inversion and collision. For the case of the Borborema Province, the São Francisco Craton was pulled away from its other half, the Benino-Nigerian Shield, during an intermittent extension event between 1.0–0.92 and 0.9–0.82 Ga. This was followed by inversion of an embryonic and confined oceanic basin at ca. 0.60 Ga and transpressional orogeny from ca. 0.59 Ga onwards. Here we investigate the boundary region between the north São Francisco Craton and the Borborema Province and demonstrate how cratonic blocks became physically involved in the orogeny. We combine these results with a wide compilation of U–Pb and Nd-isotopic model ages to show that the Borborema Province consists of up to 65% of strongly sheared ancient rocks affiliated with the São Francisco/Benino-Nigerian Craton, separated by major transcurrent shear zones, with only ≈ 15% addition of juvenile material during the Neoproterozoic orogeny. This evolution is repeated across a number of Brasiliano/Pan-African orogens, with significant local variations, and indicate that extension weakened cratonic regions in a process of decratonization that prepared them for involvement in the orogenies, that led to the amalgamation of Gondwana.

Fluid inclusion microthermometry in Be–Ta–(Li–Sn)-bearing pegmatites from the Borborema Province, Northeast Brazil

2001 ◽  
Vol 173 (1-3) ◽  
pp. 107-123 ◽  
Author(s):  
Hartmut Beurlen ◽  
Marcelo R.R. da Silva ◽  
Claudio de Castro
Keyword(s):  
Fluid Inclusion ◽  
Northeast Brazil ◽  
Borborema Province

Interpretation of gamma-ray spectrometric data from central region of Borborema Province, Northeast of Brazil

2007 ◽  
Author(s):  
Adriana Chatack Carmelo ◽  
Roberto A. Vitória de Moraes ◽  
Chris Busnello Fianco ◽  
Gustavo de Assunção Mello ◽  
Loiane Gomes de Moraes ◽  
...  
Keyword(s):  
Central Region ◽  
Gamma Ray ◽  
Spectrometric Data ◽  
Borborema Province
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