Title: Origin of fluids and related barite deposits at vent sites along the Peru convergent margin
Abstract: Research Article| December 01, 1993 Origin of fluids and related barite deposits at vent sites along the Peru convergent margin A. N. Dia; A. N. Dia 1Laboratoire de Géochimie et Métallogénie, Université Pierre et Marie Curie, Tour 26-16, E5,4 Place Jussieu, 75252 Paris Cédex 05, France Search for other works by this author on: GSW Google Scholar L. Aquilina; L. Aquilina 1Laboratoire de Géochimie et Métallogénie, Université Pierre et Marie Curie, Tour 26-16, E5,4 Place Jussieu, 75252 Paris Cédex 05, France Search for other works by this author on: GSW Google Scholar J. Boulègue; J. Boulègue 1Laboratoire de Géochimie et Métallogénie, Université Pierre et Marie Curie, Tour 26-16, E5,4 Place Jussieu, 75252 Paris Cédex 05, France Search for other works by this author on: GSW Google Scholar J. Bourgois; J. Bourgois 2Laboratoire de Géodynamique Tectonique et Environnment, Tour 26-16, E4, 4 Place Jussieu, 75252 Paris Cédex 05, France Search for other works by this author on: GSW Google Scholar E. Suess; E. Suess 3Forschungsinstitut für Marine Geowissenschaften, Christian-Albrechts Universität, D-2300 Wischhofstrasse 1-3, Kiel 14, Germany Search for other works by this author on: GSW Google Scholar M. Torres M. Torres 3Forschungsinstitut für Marine Geowissenschaften, Christian-Albrechts Universität, D-2300 Wischhofstrasse 1-3, Kiel 14, Germany Search for other works by this author on: GSW Google Scholar Geology (1993) 21 (12): 1099–1102. https://doi.org/10.1130/0091-7613(1993)021<1099:OOFARB>2.3.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 A. N. Dia, L. Aquilina, J. Boulègue, J. Bourgois, E. Suess, M. Torres; Origin of fluids and related barite deposits at vent sites along the Peru convergent margin. Geology 1993;; 21 (12): 1099–1102. doi: https://doi.org/10.1130/0091-7613(1993)021<1099:OOFARB>2.3.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 The venting at the northern Peru convergent margin, unlike at other margins, has produced large barite deposits, which have not been observed outside the vents. The 87Sr/86Sr isotopic ratios of the fluids are more radiogenic than seawater. To explain these elevated values, we propose either the influence of a fluid characterized by a more radiogenic signature originating from the continent, or a reaction between seawater and the underlying continental metamorphic basement. The presence of this nonlocal radiogenic component is marked more strongly on the 87Sr/86Sr ratios measured in the barite deposits. We assume that the fluid sampled at the venting site and the fluid responsible for the barite deposit sampled at the same site originated from the same source, i.e., the Paleozoic metamorphic basement of the Andean continental margin. 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.