Exsolved silicate and oxide phases from clinopyroxenes in a single Hawaiian xenolith: Implications for oxidation state of the Hawaiian upper mantle

Abstract

Research Article| January 01, 1988 Exsolved silicate and oxide phases from clinopyroxenes in a single Hawaiian xenolith: Implications for oxidation state of the Hawaiian upper mantle Gautam Sen; Gautam Sen 1Department of Geology, Florida International University, Miami, Florida 33199 Search for other works by this author on: GSW Google Scholar Robert E. Jones Robert E. Jones 2Department of Earth & Space Sciences, University of California, Los Angeles, California 90024 Search for other works by this author on: GSW Google Scholar Author and Article Information Gautam Sen 1Department of Geology, Florida International University, Miami, Florida 33199 Robert E. Jones 2Department of Earth & Space Sciences, University of California, Los Angeles, California 90024 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1988) 16 (1): 69–72. https://doi.org/10.1130/0091-7613(1988)016<0069:ESAOPF>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 Gautam Sen, Robert E. Jones; Exsolved silicate and oxide phases from clinopyroxenes in a single Hawaiian xenolith: Implications for oxidation state of the Hawaiian upper mantle. Geology 1988;; 16 (1): 69–72. doi: https://doi.org/10.1130/0091-7613(1988)016<0069:ESAOPF>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 A single garnet-bearing clinopyroxenite xenolith from the Salt Lake crater on Oahu, Hawaii, contains two distinct types of clinopyroxene; one contains exsolved garnet, ilmenite, and magnetite, and the other contains exsolved hercynite-pleonaste spinel, orthopyroxene, and ilmenite. Application of mineral geothermometers, barometers, and oxygen barometers to this unusual combination of exsolved phases defines the following conditions of last mantle equilibration of this xenolith: P = 19 kbar, T =1153 °C, and log10fO2 = -9.7. 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.