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High-Mg adakites from Kadavu Island Group, Fiji, southwest Pacific: Evidence for the mantle origin of adakite parental melts

2008; Geological Society of America; Volume: 36; Issue: 6 Linguagem: Inglês

10.1130/g24349a.1

1943-2682

L Danyushevsky, Trevor J. Falloon, Anthony J. Crawford, Sofia A. Tetroeva, Roman L. Leslie, Alicia Verbeeten,

earthquake and tectonic studies

Research Article| June 01, 2008 High-Mg adakites from Kadavu Island Group, Fiji, southwest Pacific: Evidence for the mantle origin of adakite parental melts Leonid V. Danyushevsky; Leonid V. Danyushevsky 1ARC Center of Excellence in Ore Deposits and School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia Search for other works by this author on: GSW Google Scholar Trevor J. Falloon; Trevor J. Falloon 1ARC Center of Excellence in Ore Deposits and School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia Search for other works by this author on: GSW Google Scholar Anthony J. Crawford; Anthony J. Crawford 1ARC Center of Excellence in Ore Deposits and School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia Search for other works by this author on: GSW Google Scholar Sofia A. Tetroeva; Sofia A. Tetroeva 1ARC Center of Excellence in Ore Deposits and School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia Search for other works by this author on: GSW Google Scholar Roman L. Leslie; Roman L. Leslie 1ARC Center of Excellence in Ore Deposits and School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia Search for other works by this author on: GSW Google Scholar Alicia Verbeeten Alicia Verbeeten 1ARC Center of Excellence in Ore Deposits and School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia Search for other works by this author on: GSW Google Scholar Author and Article Information Leonid V. Danyushevsky 1ARC Center of Excellence in Ore Deposits and School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia Trevor J. Falloon 1ARC Center of Excellence in Ore Deposits and School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia Anthony J. Crawford 1ARC Center of Excellence in Ore Deposits and School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia Sofia A. Tetroeva 1ARC Center of Excellence in Ore Deposits and School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia Roman L. Leslie 1ARC Center of Excellence in Ore Deposits and School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia Alicia Verbeeten 1ARC Center of Excellence in Ore Deposits and School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia Publisher: Geological Society of America Received: 28 Aug 2007 Revision Received: 21 Feb 2008 Accepted: 01 Mar 2008 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2008 Geological Society of America Geology (2008) 36 (6): 499–502. https://doi.org/10.1130/G24349A.1 Article history Received: 28 Aug 2007 Revision Received: 21 Feb 2008 Accepted: 01 Mar 2008 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Leonid V. Danyushevsky, Trevor J. Falloon, Anthony J. Crawford, Sofia A. Tetroeva, Roman L. Leslie, Alicia Verbeeten; High-Mg adakites from Kadavu Island Group, Fiji, southwest Pacific: Evidence for the mantle origin of adakite parental melts. Geology 2008;; 36 (6): 499–502. doi: https://doi.org/10.1130/G24349A.1 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 We report here the compositions of primitive high-Mg adakite lavas from the Kadavu Island Group, Fiji. Two distinctive high-Mg adakite compositions are present on Kadavu, and both are strongly enriched in Sr and La, with high Sr/Y (>120) and La/Yb (>30) values. The east Kadavu high-Mg adakite is relatively enriched in K2O and depleted in TiO2 and Nb. Our results from Kadavu suggest that there is an adakite magma series that is the result of complex open-system magmatic processes, including magma mixing between relatively low SiO2 mantle-derived melts of high-Mg adakite composition and high SiO2, low-Mg adakite magma. The results from Kadavu Island suggest that adakite magma suites worldwide are likely to include primitive high-Mg compositions, despite the lack of field evidence in many cases. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.