Title: Initiation of subduction and the generation of slab melts in western and eastern Mindanao, Philippines
Abstract: Research Article| November 01, 1993 Initiation of subduction and the generation of slab melts in western and eastern Mindanao, Philippines Fernando G. Sajona; Fernando G. Sajona 1Unité de Recherche Associée 1278, Université de Bretagne Occidentale, BP 452, 29275 Brest, France Search for other works by this author on: GSW Google Scholar René C. Maury; René C. Maury 1Unité de Recherche Associée 1278, Université de Bretagne Occidentale, BP 452, 29275 Brest, France Search for other works by this author on: GSW Google Scholar Hervé Bellon; Hervé Bellon 1Unité de Recherche Associée 1278, Université de Bretagne Occidentale, BP 452, 29275 Brest, France Search for other works by this author on: GSW Google Scholar Joseph Cotten; Joseph Cotten 1Unité de Recherche Associée 1278, Université de Bretagne Occidentale, BP 452, 29275 Brest, France Search for other works by this author on: GSW Google Scholar Marc J. Defant; Marc J. Defant 2Department of Geology, University of South Florida, Tampa, Florida 33620 Search for other works by this author on: GSW Google Scholar Manuel Pubellier Manuel Pubellier 3Unité de Recherche Associée 1315, Université Pierre et Marie Curie, 4 Place Jussieu, 75252 Paris Cedex 05, France Search for other works by this author on: GSW Google Scholar Geology (1993) 21 (11): 1007–1010. https://doi.org/10.1130/0091-7613(1993)021<1007:IOSATG>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 Fernando G. Sajona, René C. Maury, Hervé Bellon, Joseph Cotten, Marc J. Defant, Manuel Pubellier; Initiation of subduction and the generation of slab melts in western and eastern Mindanao, Philippines. Geology 1993;; 21 (11): 1007–1010. doi: https://doi.org/10.1130/0091-7613(1993)021<1007:IOSATG>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 Adakite, found in both the eastern and western parts of Mindanao Island, Philippines, is a rare rock type, characterized by low heavy rare earth elements and Y contents together with high Sr/Y ratios, and is considered to be the result of the melting of young subducted oceanic crust, which leaves an eclogite residue. Pliocene-Quaternary adakites from western Mindanao (Zamboanga Peninsula) are probably derived from the melting of the young Miocene Sulu Sea crust, which is currently subducting beneath Zamboanga. Associated Nb-enriched basalts are thought to come from mantle metasomatized through interaction with adakitic melts. In eastern Mindanao, Pliocene-Quaternary cones and plugs of typical adakitic composition mark the trace of the Philippine fault in Surigao and north Davao. The underlying Philippine Sea crust is of Eocene age and therefore cannot melt under normal subduction thermal conditions. Thermal models indicate that melting at the start of subduction can occur. Subduction of the Philippine Sea plate began 3 to 4 Ma beneath eastern Mindanao and probably accounts for the presence of adakites along the Philippine fault. 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.
Publication Year: 1993
Publication Date: 1993-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 325
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