Abstract
Research Article| November 01, 1985 Crustal signatures in the Serra Geral flood-basalt province, southern Brazil: O- and Sr-isotope evidence R. V. Fodor; R. V. Fodor 1Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina 27695 Search for other works by this author on: GSW Google Scholar Cricket Corwin; Cricket Corwin 1Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina 27695 Search for other works by this author on: GSW Google Scholar A. N. Sial A. N. Sial 2Departamento de Geologia, Universidade Federal de Pernambuco, Recife, PE, Brazil Search for other works by this author on: GSW Google Scholar Author and Article Information R. V. Fodor 1Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina 27695 Cricket Corwin 1Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina 27695 A. N. Sial 2Departamento de Geologia, Universidade Federal de Pernambuco, Recife, PE, Brazil Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1985) 13 (11): 763–765. https://doi.org/10.1130/0091-7613(1985)13<763:CSITSG>2.0.CO;2 Article history First Online: 01 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 R. V. Fodor, Cricket Corwin, A. N. Sial; Crustal signatures in the Serra Geral flood-basalt province, southern Brazil: O- and Sr-isotope evidence. Geology 1985;; 13 (11): 763–765. doi: https://doi.org/10.1130/0091-7613(1985)13<763:CSITSG>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 Strontium and oxygen isotopes in igneous rocks from a 35 000-km2 region of the Serra Geral (Paraná) continental flood-basalt province, southern Brazil, indicate that certain mantle-derived magmas that formed during the rifting and breakup of Gondwana incorporated continental crust. Sr-O and trace-element assimilation–fractional crystallization models point to variable amounts and types of “warm” Archean granulitic crust, δ18O 11 > 15 and 87Sr/86Sr(I) ∼0.735, having contaminated ascending mafic magmas. Resulting products include evolved rocks, basaltic andesite to rhyolite, that have δ18O 11 to 15 and 87Sr/86Sr(I) 0.714 to 0.729, and basaltic rocks that have δ18O 8 to 10 and 87Sr/86Sr(I) ∼0.710. 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.
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