Correlations between Dikes of the Monument Swarm, Central Oregon, and Picture Gorge Basalt Flows

Abstract

Research Article| April 01, 1975 Correlations between Dikes of the Monument Swarm, Central Oregon, and Picture Gorge Basalt Flows JONATHAN S. FRUCHTER; JONATHAN S. FRUCHTER 1Center for Volcanology, University of Oregon, Eugene, Oregon 974032Present address: Battelle, Pacific Northwest Laboratories, Richland, Washington 99352. Search for other works by this author on: GSW Google Scholar STUART F. BALDWIN STUART F. BALDWIN 1Center for Volcanology, University of Oregon, Eugene, Oregon 97403 Search for other works by this author on: GSW Google Scholar GSA Bulletin (1975) 86 (4): 514–516. https://doi.org/10.1130/0016-7606(1975)86<514:CBDOTM>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 JONATHAN S. FRUCHTER, STUART F. BALDWIN; Correlations between Dikes of the Monument Swarm, Central Oregon, and Picture Gorge Basalt Flows. GSA Bulletin 1975;; 86 (4): 514–516. doi: https://doi.org/10.1130/0016-7606(1975)86<514:CBDOTM>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 Samples from 39 dikes and 11 other intrusive bodies of the Monument dike swarm in central Oregon were analyzed by instrumental neutron activation analysis. All but two of the dikes have distinctive trace element compositions that clearly identify them as possible sources for the basalt flows at the Picture Gorge type section and equivalent or stratigraphically lower flows elsewhere in the region. The correlations are supported by paleomagnetic polarity measurements and by major element analyses of nine of the samples. 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.