Sulfur evolution of oxidized arc magmas as recorded in apatite from a porphyry copper batholith

Abstract

Research Article| June 01, 1998 Sulfur evolution of oxidized arc magmas as recorded in apatite from a porphyry copper batholith Martin J. Streck; Martin J. Streck 1Department of Geosciences, Oregon State University, Corvallis, Oregon 97331-5506 Search for other works by this author on: GSW Google Scholar John H. Dilles John H. Dilles 1Department of Geosciences, Oregon State University, Corvallis, Oregon 97331-5506 Search for other works by this author on: GSW Google Scholar Author and Article Information Martin J. Streck 1Department of Geosciences, Oregon State University, Corvallis, Oregon 97331-5506 John H. Dilles 1Department of Geosciences, Oregon State University, Corvallis, Oregon 97331-5506 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1998) 26 (6): 523–526. https://doi.org/10.1130/0091-7613(1998)026<0523:SEOOAM>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 Email Permissions Search Site Citation Martin J. Streck, John H. Dilles; Sulfur evolution of oxidized arc magmas as recorded in apatite from a porphyry copper batholith. Geology 1998;; 26 (6): 523–526. doi: https://doi.org/10.1130/0091-7613(1998)026<0523:SEOOAM>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 Uniformly sulfur-rich cores abruptly zoned to sulfur-poor rims (∼1 to <0.2 wt% SO3) in apatite from the Yerington batholith, Nevada, indicate that early magma that is crystal poor, oxidizing, and sulfate rich evolved to sulfate-poor magma via crystallization of anhydrite, a mineral observed in magmas from Pinatubo and El Chichón. We predict that the characteristic zonation to sulfur-poor rims of apatite in the Yerington batholith is common in other oxidized, hydrous, calc-alkaline magmas, and can be used to track cryptic anhydrite saturation as well as to monitor sulfur evolution. Sulfate-rich arc magmas such as Yerington magmas may crystallize to produce hydrothermal fluids rich in chlorine, copper, and sulfur and porphyry copper ores. 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.