Speculative tectonic model for the early Mesozoic arc of the southwest Cordilleran United States

Research Article| December 01, 1988 Speculative tectonic model for the early Mesozoic arc of the southwest Cordilleran United States Cathy J. Busby-Spera Cathy J. Busby-Spera 1Department of Geological Sciences, University of California, Santa Barbara, California 93106 Search for other works by this author on: GSW Google Scholar Author and Article Information Cathy J. Busby-Spera 1Department of Geological Sciences, University of California, Santa Barbara, California 93106 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1988) 16 (12): 1121–1125. https://doi.org/10.1130/0091-7613(1988)016<1121:STMFTE>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 Cathy J. Busby-Spera; Speculative tectonic model for the early Mesozoic arc of the southwest Cordilleran United States. Geology 1988;; 16 (12): 1121–1125. doi: https://doi.org/10.1130/0091-7613(1988)016<1121:STMFTE>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 The early Mesozoic continental arc of Arizona, California, and western Nevada is here interpreted to have occupied a continuous graben depression, more than 1000 km long, similar to the modern extensional are of Central America. High calculated rates of subsidence, the presence of syndepositional normal faults and fault-talus breccias, the abundance of calderas and high-level intrusions, and interstratification of cale-alkalic and alkalic volcanic rocks provide support for this model. The arc graben depression acted as a long-lived (more than 40 m.y.) trap for craton-derived quartz sands, which were funneled along the length and across the width of the depression. 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.