New structural limits on magma chamber locations at the Valley of Ten Thousand Smokes, Katmai National Park, Alaska

Abstract

Research Article| December 01, 1990 New structural limits on magma chamber locations at the Valley of Ten Thousand Smokes, Katmai National Park, Alaska Peter C. Wallmann; Peter C. Wallmann 1Department of Geology, Stanford University, Stanford, California 94305 Search for other works by this author on: GSW Google Scholar David D. Pollard; David D. Pollard 2Departments of Geology and Applied Earth Sciences, Stanford University, Stanford, California 94305 Search for other works by this author on: GSW Google Scholar Wes Hildreth; Wes Hildreth 3U.S. Geological Survey, MS 910, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar John C. Eichelberger John C. Eichelberger 4Geochemistry Division 6233, Sandia National Laboratories, Albuquerque, New Mexico 87185 Search for other works by this author on: GSW Google Scholar Author and Article Information Peter C. Wallmann 1Department of Geology, Stanford University, Stanford, California 94305 David D. Pollard 2Departments of Geology and Applied Earth Sciences, Stanford University, Stanford, California 94305 Wes Hildreth 3U.S. Geological Survey, MS 910, Menlo Park, California 94025 John C. Eichelberger 4Geochemistry Division 6233, Sandia National Laboratories, Albuquerque, New Mexico 87185 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1990) 18 (12): 1240–1243. https://doi.org/10.1130/0091-7613(1990)018<1240:NSLOMC>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 Peter C. Wallmann, David D. Pollard, Wes Hildreth, John C. Eichelberger; New structural limits on magma chamber locations at the Valley of Ten Thousand Smokes, Katmai National Park, Alaska. Geology 1990;; 18 (12): 1240–1243. doi: https://doi.org/10.1130/0091-7613(1990)018<1240:NSLOMC>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 New structural data from the Novarupta basin, Katmai National Park, Alaska, site of the largest volcanic eruption of this century (1912), provide limits for the location of magma chambers associated with this eruption. To investigate the subsurface structure of the 1912 vents, and to support an interdisciplinary study of this young volcanic system, a project of geologic mapping of surficial and bedrock structures in the vent region of the 1912 eruption has been undertaken.Landslide scarps, arcuate grabens, a monoclinal fold, and truncated ridges circumscribe the Novarupta basin, marking the inferred outer rim of the vent. A set of radial fissures crosses the southern margin of the basin, striking ∼140°, subparallel to the dominant bedrock joint set. These fissures and joints, along with the local plate-motion vector and the inferred regional stress orientation, are consistent with a feeder dike propagating from a reservoir beneath Trident volcano to the eruptive vent. 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.