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Possible evidence of a Precambrian continental collision in the Rio Pardo basin of eastern Brazil

1979; Geological Society of America; Volume: 7; Issue: 9 Linguagem: Inglês

10.1130/0091-7613(1979)7 2.0.co;2

1943-2682

Augusto José Pedreira,

Geological formations and processes

Research Article| September 01, 1979 Possible evidence of a Precambrian continental collision in the Rio Pardo basin of eastern Brazil Augusto J. Pedreira Augusto J. Pedreira 1Companhia de Pesquisa de Recursos Minerais-CPRM Rua Barros Falcão, 21-40000 Salvador, Brazil Search for other works by this author on: GSW Google Scholar Author and Article Information Augusto J. Pedreira 1Companhia de Pesquisa de Recursos Minerais-CPRM Rua Barros Falcão, 21-40000 Salvador, Brazil Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1979) 7 (9): 445–448. https://doi.org/10.1130/0091-7613(1979)7 2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Augusto J. Pedreira; Possible evidence of a Precambrian continental collision in the Rio Pardo basin of eastern Brazil. Geology 1979;; 7 (9): 445–448. doi: https://doi.org/10.1130/0091-7613(1979)7 2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Some features in the basement rocks near the eastern coast of Brazil probably can be explained by plate-tectonics concepts. The area studied contains east-west-oriented diabase dikes, intrusive alkalic rocks, and miogeosynclinal sediments in a fault-bounded sedimentary basin now metamorphosed to greenschist facies, all affected by a northwest-southeast-trending shear zone. These features evolved chronologically in the sequence indicated, about 1,160 to 600 m.y. ago. The model devised by Sengör indicates that these features are possibly the product of a Precambrian collision between two continents with irregular margins. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.