Transitional Tectonics and Late Cenozoic Structure of the Continental Margin off Northernmost California

Research Article| January 01, 1971 Transitional Tectonics and Late Cenozoic Structure of the Continental Margin off Northernmost California ELI A SILVER ELI A SILVER Geological Research Division, Scripps Institution of Oceanography, La Jolla, California 92037 PRESENT ADDRESS: U.S. GEOLOGICAL SURVEY, MENLO PARK, CALIFORNIA 94025 Search for other works by this author on: GSW Google Scholar Author and Article Information ELI A SILVER PRESENT ADDRESS: U.S. GEOLOGICAL SURVEY, MENLO PARK, CALIFORNIA 94025 Geological Research Division, Scripps Institution of Oceanography, La Jolla, California 92037 Publisher: Geological Society of America Received: 16 Mar 1970 Revision Received: 27 Jul 1970 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1971, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1971) 82 (1): 1–22. https://doi.org/10.1130/0016-7606(1971)82[1:TTALCS]2.0.CO;2 Article history Received: 16 Mar 1970 Revision Received: 27 Jul 1970 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation ELI A SILVER; Transitional Tectonics and Late Cenozoic Structure of the Continental Margin off Northernmost California. GSA Bulletin 1971;; 82 (1): 1–22. doi: https://doi.org/10.1130/0016-7606(1971)82[1:TTALCS]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 The continental margin north of the Cape Mendocino triple junction is a region of tectonic transition between structures related to underthrusting on the continental slope and those related to right-lateral strike-slip along the coast. Underthrusting of late Cenozoic rocks of the continental slope by the Gorda lithospheric plate is seen by the presence of magnetic anomaly 3, age 5 m.y., beneath the slope. Folds and faults mapped by reflection profiling on the continental slope are parallel to it, and the faults have dip separations predominantly with west side down. These structures are best explained as resulting from oblique underthrusting, with structural trends controlled by the slope direction. Northwest-trending faults occur along the coast and reported earthquake mechanism solutions show right-lateral first motions. These faults and related folds affect Mesozoic rocks and parallel the San Andreas fault system which lies to the south, most probably sharing its origin—that of shear interaction between the Pacific and North American lithospheric plates. 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.