Metasomatic Chromitite Seams in the Bushveld and Rum Layered Intrusions

Abstract

Research Article| December 01, 2017 Metasomatic Chromitite Seams in the Bushveld and Rum Layered Intrusions Edmond A. Mathez; Edmond A. Mathez 1 Department of Education American Museum of Natural History New York, NY 10024 USA E-mail: [e-mail], [e-mail] Search for other works by this author on: GSW Google Scholar Rosamond J. Kinzler Rosamond J. Kinzler 2 Department of Earth and Planetary Sciences Search for other works by this author on: GSW Google Scholar Author and Article Information Edmond A. Mathez 1 Department of Education American Museum of Natural History New York, NY 10024 USA E-mail: [e-mail], [e-mail] Rosamond J. Kinzler 2 Department of Earth and Planetary Sciences Publisher: Mineralogical Society of America First Online: 14 Dec 2017 Online Issn: 1811-5217 Print Issn: 1811-5209 Copyright © 2017 by the Mineralogical Society of AmericaMineralogical Society of America Elements (2017) 13 (6): 397–402. https://doi.org/10.2138/gselements.13.6.397 Article history First Online: 14 Dec 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Edmond A. Mathez, Rosamond J. Kinzler; Metasomatic Chromitite Seams in the Bushveld and Rum Layered Intrusions. Elements 2017;; 13 (6): 397–402. doi: https://doi.org/10.2138/gselements.13.6.397 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 SocietyElements Search Advanced Search Millimeter–centimeter thick layers of chromite-rich rock (chromitites) are rare, but ubiquitous, features of the Bushveld (South Africa) and Rum (Scotland) layered intrusions. Despite their meager dimensions, the chromitites provide insight into processes that modify igneous layering and, in the Bushveld, the formation of the platinum-group element– rich Merensky Reef. The Merensky Reef chromitites represent reaction zones formed in a compositional gradient between hydrous silicate melt and a crystalline cumulate assemblage, analogous to reaction zones in metamorphic systems. At Rum, the chromitites formed at the melting front between newly injected magma and the magma chamber floor, an analogous process but one driven by thermal, rather than chemical, energy. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.