Ring-fracture eruption of the Bishop Tuff

Abstract

Research Article| April 01, 1986 Ring-fracture eruption of the Bishop Tuff WES HILDRETH; WES HILDRETH 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar GAIL A. MAHOOD GAIL A. MAHOOD 2Department of Geology, Stanford University, Stanford, California 94305 Search for other works by this author on: GSW Google Scholar Author and Article Information WES HILDRETH 1U.S. Geological Survey, Menlo Park, California 94025 GAIL A. MAHOOD 2Department of Geology, Stanford University, Stanford, California 94305 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1986) 97 (4): 396–403. https://doi.org/10.1130/0016-7606(1986)97<396:REOTBT>2.0.CO;2 Article history First Online: 01 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 WES HILDRETH, GAIL A. MAHOOD; Ring-fracture eruption of the Bishop Tuff. GSA Bulletin 1986;; 97 (4): 396–403. doi: https://doi.org/10.1130/0016-7606(1986)97<396:REOTBT>2.0.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 SocietyGSA Bulletin Search Advanced Search Abstract Lithic fragments of precaldera basement rocks in the Plinian fallout deposit of the Bishop Tuff indicate that the eruption began in what is now the south-central part of Long Valley caldera, along or adjacent to the Hilton Creek fault. The earliest ash flows originated there as well, but contrasting lithic contents in several later ash flows indicate ring-fault propagation and incorporation of fragments of locally distinctive, caldera-margin lithologies into successive outflow sheets. The change from a single-vent Plinian mode of eruption to multiple vents along the ring fault took place after emplacement of as little as 20% of the total Bishop ejecta. Approximately two-thirds of the total eruptive volume was trapped within the subsiding caldera. 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.