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- W4233228510 abstract "PreviousNext No Access11th International Congress of the Brazilian Geophysical Society & EXPOGEF 2009, Salvador, Bahia, Brazil, 24-28 August 2009Insights about St. Peter peridotitic ridge in the Equatorial Atlantic tectonic setting: Deep upper-mantle structure with ductile and brittle deformationAuthors: Jennifer Angel-Amaya*Susanna E. SichelJennifer Angel-Amaya*LAGEMAR/ UFF, Niterói-BrazilSearch for more papers by this author and Susanna E. SichelLAGEMAR/ UFF, Niterói-BrazilSearch for more papers by this authorhttps://doi.org/10.1190/sbgf2009-215 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract The St Peter peridotitic ridge (SPPR) is a large structure in the Equatorial Atlantic Ocean, located at southern side of the intersection of the Mid Atlantic Ridge (MAR) with the St. Paul's Transform Fault (SPTF); It is composed for upper-mantle derivate lherzolitic and harzburgitic rocks with serpentinitic and mylonitic processes superimposed. Basaltic rocks and sediments are presents in less proportion. The sigmoid structure of the SPPR is elevated 4000 m above the ocean bottom and it's northern side protrudes above the sea level forming the St. Peter and St. Paul's Archipelago (SPSPA) in the geographical coordinates 0' 55'.1 N and 29° 20'.7 W. This segment ridge corresponds to the wall of the active SPTF, for this reason is the more intensity deformed and mylonitized, that constitute a excellent outcrop of the mantle related rocks with accessible structural elements of the ductile and brittle deformation. Keywords: marine, tectonic, fracturePermalink: https://doi.org/10.1190/sbgf2009-215FiguresReferencesRelatedDetails 11th International Congress of the Brazilian Geophysical Society & EXPOGEF 2009, Salvador, Bahia, Brazil, 24-28 August 2009ISSN (online):2159-6832Copyright: 2009 Pages: 1997 publication data© 2009 Published in electronic format with permission by the Brazilian Geophysical SocietyPublisher:Society of Exploration Geophysicists HistoryPublished: 28 Apr 2014 CITATION INFORMATION Jennifer Angel-Amaya* and Susanna E. Sichel, (2009), Insights about St. Peter peridotitic ridge in the Equatorial Atlantic tectonic setting: Deep upper-mantle structure with ductile and brittle deformation, SEG Global Meeting Abstracts : 1001-1006. https://doi.org/10.1190/sbgf2009-215 Plain-Language Summary KeywordsmarinetectonicfracturePDF DownloadLoading ..." @default.
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- W4233228510 title "Insights about St. Peter peridotitic ridge in the Equatorial Atlantic tectonic setting: Deep upper-mantle structure with ductile and brittle deformation" @default.
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