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<title lang=en>Geology of Northern Borborema Province, NE Brazil and its correlation with Nigeria, NW Africa</title>
<creator>Arthaud, M.H.</creator>
<creator>Caby, Renaud</creator>
<creator>Fuck, R.A.</creator>
<creator>Dantas, L.</creator>
<creator>Parente, C.</creator>
<contributor>Departamento de Geologia, Universidade Federal do Ceará ; Université du Québec</contributor>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Instituto de Geociências, Universidade de Brasilia ; Universidade de Brasilia [Brasília] (UnB)</contributor>
<source>West Gondwana: Pre-cenozoic correlations across the south atlantic region</source>
<contributor>R.J. Pankhurst; R.A.J. Trouw; B.B. de Brto Neves; M.J. de Wit</contributor>
<publisher>Geological Society of London</publisher>
<identifier>hal-00412234</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00412234</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00412234</source>
<source>R.J. Pankhurst; R.A.J. Trouw; B.B. de Brto Neves; M.J. de Wit. West Gondwana: Pre-cenozoic correlations across the south atlantic region, Geological Society of London, pp.49-67, 2008, Geological Society, Special Publication, 294, 〈10.1144/SP294.4〉</source>
<identifier>DOI : 10.1144/SP294.4</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1144/SP294.4</relation>
<language>en</language>
<subject>[SDU.STU.TE] Sciences of the Universe [physics]/Earth Sciences/Tectonics</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
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<description lang=en>The Borborema and Benin–Nigeria provinces of NE Brazil and NW Africa, respectively, are key areas in the amalgamation of West Gondwana by continental collision during the Brasiliano/Pan-African orogenies. Both are underlain by complex basement: Nigeria has c. 3.05 Ga Archaean crust but no known Palaeoproterozoic rocks >2.0 Ga; in NE Brazil, 2.6–3.5 Ga Archaean rocks form small cores within Palaeoproterozoic gneiss terrains affected by plutonism at c. 2.17 Ga. Both regions exhibit Late Palaeoproterozoic (c. 1.8 Ga) rift-related magmatism and metasedimentary sequences overlying the basement. The Seridó Group of NE Brazil (<0.65 Ga) is similar to the Igarra Sequence in SW Nigeria. The Ceará Group, which may date back to c. 0.85 Ga, is a passive margin deposit on crust thinned during initiation of an oceanic domain. In both provinces, basement and sedimentary cover were involved in tangential tectonics that resulted in crust-thickening by nappe-stacking associated with closure of this ocean. Frontal collision between c. 0.66 and 0.60 Ga later evolved to an oblique collision, generating north–south continental strike-slip shear zones at c. 0.59 Ga. In NE Brazil, the main Pan-African suture is probably buried beneath the Parnaíba Basin. The Transbrasiliano Lineament, interpreted as the prolongation of the Kandi–4°50 Lineament in Hoggar, may represent a cryptic suture.</description>
<date>2008</date>
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