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In the M\u00e9dio Corea\u00fa domain, NW Borborema Province, U\u2013Pb and Sm\u2013Nd data have revealed unusual basement rocks representing 2.35\u20132.30 Ga juvenile crust, along with large tracts of 2.15\u20132.10 Ga juvenile gneisses in the Cear\u00e1 Central domain. These basement blocks were affected by two pulses of intracratonic extension at 1785 and 775 Ma. Prior to West Gondwana collision, a continental arc (the Santa Quit\u00e9ria batholith) developed between 665 Ma and 620 Ma. The presence of this arc strengthens the hypothesis that convergence between the Borborema Province and the S\u00e3o Luis craton involved closure of an oceanic basin. New geochronological data are presented showing that Palaeoproterozoic orthogneisses (U\u2013Pb upper intercept 2288\u00b12 Ma) were affected by a major late Neoproterozoic event (554\u00b14 Ma U\u2013Pb lower intercept, 558\u00b13 Ma Sm\u2013Nd whole-rock and mineral isochron). Exhumation and cooling of granulite rocks between 568 and 550 Ma in the M\u00e9dio Corea\u00fa domain and between\n            <jats:italic>c<\/jats:italic>\n            . 587 and 576 in the West African Dahomey Belt indicate that the final tectonic phase was not simultaneous along this front of the orogen.\n          <\/jats:p>","DOI":"10.1144\/sp294.6","type":"journal-article","created":{"date-parts":[[2008,1,31]],"date-time":"2008-01-31T15:45:21Z","timestamp":1201794321000},"page":"101-120","source":"Crossref","is-referenced-by-count":46,"title":["Comparisons between the northwestern Borborema Province, NE Brazil, and the southwestern Pharusian Dahomey Belt, SW Central Africa"],"prefix":"10.1144","volume":"294","author":[{"given":"T. J. S.","family":"dos Santos","sequence":"first","affiliation":[{"name":"Instituto de Geoci\u00eancias, Universidade Estadual de Campinas (UNICAMP), PO Box 6152, CEP 13081-970, Campinas, SP, Brazil (e-mail: )"}]},{"given":"A. H.","family":"Fetter","sequence":"additional","affiliation":[{"name":"U.S. Nuclear Regulatory Commission, 11555 Rockville Pike, Rockville, MD 20852, USA"}]},{"given":"J. A. N.","family":"Neto","sequence":"additional","affiliation":[{"name":"Universidade Federal do Cear\u00e1, Campus do Pici, CEP 60455-760 Fortaleza, CE, Brazil"}]}],"member":"1881","published-online":{"date-parts":[[2008,1,25]]},"reference":[{"key":"e_1_3_3_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jafrearsci.2003.10.001"},{"key":"e_1_3_3_3_1","first-page":"95","volume-title":"The West African orogens and circum-Atlantic correlatives","author":"Affaton P.","year":"1991","unstructured":"Affaton P., Rahaman M. A., Trompette R., Sougy J., Dallmeyer R. D., Lecorche J. 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