Abstract
Research Article| February 01, 1989 Evaporites and strata-bound tungsten mineralization G. Todd Ririe G. Todd Ririe 1Unocal Science and Technology Division, P.O. Box 76, Brea, California 92621 Search for other works by this author on: GSW Google Scholar Geology (1989) 17 (2): 139–143. https://doi.org/10.1130/0091-7613(1989)017<0139:EASBTM>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 G. Todd Ririe; Evaporites and strata-bound tungsten mineralization. Geology 1989;; 17 (2): 139–143. doi: https://doi.org/10.1130/0091-7613(1989)017<0139:EASBTM>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 Discoidal gypsum crystal cavities occur in quartzites that host varying amounts of stratabound scheelite mineralization near Halls Creek in Western Australia. The host quartzites have been regionally metamorphosed to greenschist facies and are contained within a Middle Proterozoic sequence that includes pelites, mafic and felsic volcanics, and voicaniclastic rocks. Textural, fluid inclusion, and oxygen isotope data indicate that scheelite was present in the host quartzites prior to regional metamorphism. The presence of crystal cavities after gypsum in the quartzites implies an evaporitic origin for this sequence.The continental-sabkha playa basins of the Mojave Desert, California, are suggested to be possible modern analogs—e.g., Searles Lake, where the tungsten content is up to 70 PPM WO3 in brines and 118 ppm in muds, and exceeds the amount of tungsten in all known deposits in the United States. Metamorphism of a continental evaporitic sequence containing tungsten could produce an assemblage of rocks very similar to those reported from several stratabound tungsten deposits. Some of these, such as at Halls Creek, may be related to original accumulations of tungsten in nonmarine evaporitic environments. 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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
