Title: Tectonic geomorphology of active folding over buried reverse faults: San Emigdio Mountain front, southern San Joaquin Valley, California
Abstract: Research Article| January 01, 2000 Tectonic geomorphology of active folding over buried reverse faults: San Emigdio Mountain front, southern San Joaquin Valley, California E. A. Keller; E. A. Keller 1Environmental Studies Program and Department of Geological Sciences, University of California, Santa Barbara, California 93106 Search for other works by this author on: GSW Google Scholar D. B. Seaver; D. B. Seaver 2SEPUP, Lawrence Hall of Science, University of California, Berkeley, California 94720 Search for other works by this author on: GSW Google Scholar D. L. Laduzinsky; D. L. Laduzinsky 3Henshaw Associates, Inc., 11875 Dublin Boulevard, Suite A-200, Dublin, California 94568 Search for other works by this author on: GSW Google Scholar D. L. Johnson; D. L. Johnson 4Department of Geography, University of Illinois, Urbana, Illinois 61801 Search for other works by this author on: GSW Google Scholar T. L. Ku T. L. Ku 5Department of Earth Sciences, University of Southern California, Los Angeles, California 90089 Search for other works by this author on: GSW Google Scholar Author and Article Information E. A. Keller 1Environmental Studies Program and Department of Geological Sciences, University of California, Santa Barbara, California 93106 D. B. Seaver 2SEPUP, Lawrence Hall of Science, University of California, Berkeley, California 94720 D. L. Laduzinsky 3Henshaw Associates, Inc., 11875 Dublin Boulevard, Suite A-200, Dublin, California 94568 D. L. Johnson 4Department of Geography, University of Illinois, Urbana, Illinois 61801 T. L. Ku 5Department of Earth Sciences, University of Southern California, Los Angeles, California 90089 Publisher: Geological Society of America Received: 12 Aug 1997 Revision Received: 29 Jan 1999 Accepted: 22 Mar 1999 First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (2000) 112 (1): 86–97. https://doi.org/10.1130/0016-7606(2000)112<86:TGOAFO>2.0.CO;2 Article history Received: 12 Aug 1997 Revision Received: 29 Jan 1999 Accepted: 22 Mar 1999 First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation E. A. Keller, D. B. Seaver, D. L. Laduzinsky, D. L. Johnson, T. L. Ku; Tectonic geomorphology of active folding over buried reverse faults: San Emigdio Mountain front, southern San Joaquin Valley, California. GSA Bulletin 2000;; 112 (1): 86–97. doi: https://doi.org/10.1130/0016-7606(2000)112<86:TGOAFO>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 Investigation of the tectonic geomorphology of active folding over buried reverse faults at the San Emigdio Mountain front, southern San Joaquin Valley, California, provides insight concerning the tectonic and geomorphic development of mountain fronts produced by active folding and faulting. Monoclinally flexed gravels with dips as great as 50° and a minimum age of about 65 ka provide evidence of late Pleistocene deformation at the active range front. Studies of the surface folding of alluvial fans and fluvial terraces indicate a Holocene vertical deformation rate of 1.9–3.0 m/k.y. at the active range front and 0.8–1.3 m/k.y. ∼2 km basinward. Geomorphic evidence also indicates that the locus of active folding and vertical deformation along the northern flank of the San Emigdio Mountains has migrated and continues to migrate basinward. This evidence includes a relict mountain front, now within the uplifted block, 5 km from the present active mountain front, and the existence of recently initiated folds in the active alluvial fan 2 km basinward from the mountain front. Northward migration of tectonic activity results in the progressive widening of the uplifted block as the location of active folding moves basinward. This migration of tectonic activity appears to occur through the onset and subsequent increase of vertical deformation along more northerly folds and faults accompanied by reduction and eventual cessation of activity along the older, more southerly structures. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Publication Year: 2000
Publication Date: 2000-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 45
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