Origin of high field strength element enrichment in the Sulu Arc, southern Philippines, revisited

Abstract

Research Article| August 01, 2002 Origin of high field strength element enrichment in the Sulu Arc, southern Philippines, revisited P.R. Castillo; P.R. Castillo 1Scripps Institution of Oceanography, University of California San Diego, La Jolla, California 92093-0212, USA Search for other works by this author on: GSW Google Scholar R.U. Solidum; R.U. Solidum 1Scripps Institution of Oceanography, University of California San Diego, La Jolla, California 92093-0212, USA Search for other works by this author on: GSW Google Scholar R.S. Punongbayan R.S. Punongbayan 2Philippine Institute of Volcanology and Seismology, Diliman Quezon City, Philippines Search for other works by this author on: GSW Google Scholar Author and Article Information P.R. Castillo 1Scripps Institution of Oceanography, University of California San Diego, La Jolla, California 92093-0212, USA R.U. Solidum 1Scripps Institution of Oceanography, University of California San Diego, La Jolla, California 92093-0212, USA R.S. Punongbayan 2Philippine Institute of Volcanology and Seismology, Diliman Quezon City, Philippines Publisher: Geological Society of America Received: 17 Dec 2001 Revision Received: 22 Apr 2002 Accepted: 26 Apr 2002 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2002) 30 (8): 707–710. https://doi.org/10.1130/0091-7613(2002)030<0707:OOHFSE>2.0.CO;2 Article history Received: 17 Dec 2001 Revision Received: 22 Apr 2002 Accepted: 26 Apr 2002 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation P.R. Castillo, R.U. Solidum, R.S. Punongbayan; Origin of high field strength element enrichment in the Sulu Arc, southern Philippines, revisited. Geology 2002;; 30 (8): 707–710. doi: https://doi.org/10.1130/0091-7613(2002)030<0707:OOHFSE>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 The enrichment of high field strength elements (HFSE) in Sulu Arc lavas has been proposed as a product of metasomatism of the mantle wedge. It is postulated that a dacitic melt, derived from melting of subducted Sulu Sea basaltic crust, stabilizes in the mantle wedge amphibole, which later breaks down and releases HFSEs into the source of basaltic arc lavas. New data for primitive, high-K calc-alkalic basalts that contain the highest HFSEs among Sulu Arc lavas and seafloor basalts subducting along the Sulu Trench have contrasting chemical and isotopic characteristics. This makes it unlikely that the source of HFSE enrichment in Sulu Arc lavas is melt derived from the subducted Sulu Sea basaltic crust or amphibole formed during metasomatism of the mantle wedge by such melt. We propose that HFSE enrichment in Sulu Arc lavas results from melting of a geochemically enriched component in the mantle wedge. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.