Title: Tosco-Abreojos fault zone: A Neogene transform plate boundary within the Pacific margin of southern Baja California, Mexico
Abstract: Research Article| November 01, 1979 Tosco-Abreojos fault zone: A Neogene transform plate boundary within the Pacific margin of southern Baja California, Mexico Jon E. Spencer; Jon E. Spencer 1U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar William R. Normark William R. Normark 1U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar Author and Article Information Jon E. Spencer 1U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025 William R. Normark 1U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1979) 7 (11): 554–557. https://doi.org/10.1130/0091-7613(1979)7<554:TFZANT>2.0.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 Jon E. Spencer, William R. Normark; Tosco-Abreojos fault zone: A Neogene transform plate boundary within the Pacific margin of southern Baja California, Mexico. Geology 1979;; 7 (11): 554–557. doi: https://doi.org/10.1130/0091-7613(1979)7<554:TFZANT>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 SocietyGeology Search Advanced Search Abstract Single-channel seismic-reflection profiles across the Pacific margin of southern Baja California show a series of northwest-trending ridges, troughs, and faults. The most significant feature is a lineament with a trend between N42°W and N32°W extending along the slope and outer shelf for at least 400 km and possibly more than 550 km. The lineament is marked by a series of scarps, steep-sided ridges, and elongate intraslope basins as much as 17 km wide and 700 m deep. Sea-floor morphology and deformation and/or truncation of subbottom reflectors along the lineament show that it is a continuous fault zone, named the Tosco-Abreojos fault zone. We believe that this zone was a major part of the Pacific–North American transform plate boundary between 4.5 and 12 to 14 m.y. ago. Sea-floor offsets and disruption of the youngest sediments observed on some reflection profiles indicate that recent movement has occurred in some areas. 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.
Publication Year: 1979
Publication Date: 1979-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 125
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