Paleosubduction geometries Inferred from Cretaceous and Tertiary magmatic patterns in southwestern North America

Research Article| September 01, 1978 Paleosubduction geometries Inferred from Cretaceous and Tertiary magmatic patterns in southwestern North America Stanley B. Keith Stanley B. Keith 1State of Arizona, Bureau of Geology and Mineral Technology, 845 N. Park Avenue, Tucson, Arizona 85719 Search for other works by this author on: GSW Google Scholar Author and Article Information Stanley B. Keith 1State of Arizona, Bureau of Geology and Mineral Technology, 845 N. Park Avenue, Tucson, Arizona 85719 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1978) 6 (9): 516–521. https://doi.org/10.1130/0091-7613(1978)62.0.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 Stanley B. Keith; Paleosubduction geometries Inferred from Cretaceous and Tertiary magmatic patterns in southwestern North America. Geology 1978;; 6 (9): 516–521. doi: https://doi.org/10.1130/0091-7613(1978)62.0.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 SocietyGeology Search Advanced Search Abstract Spatial, temporal, and chemical patterns of igneous rocks in southern California, southern Arizona, and southwestern New Mexico strongly support low-angle subduction beneath southwestern North America in Late Cretaceous through middle Tertiary time. The data suggest constant dip-variable depth subduction from 130 to 80 m.y. B.P. and variable dip-variable depth subduction from 80 to 20 m.y. B.P. Flattening of the subducting slab from 80 to 50 m.y. B.P. and steepening of the slab from 40 to 20 m.y. B.P. are indicated by the data. 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.