Geologic map of the Santa Ynez Quadrangle, California

Dibblee, T.W.

doi:10.3133/ofr81373

Cited by 21 publications

(45 citation statements)

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“…The shale units locally contain microfossils of Campanian age (Sutherland 1990, appendix E). Therefore, the Downloaded by [University of Sherbrooke] at 10:06 10 April 2015 Page, Page (1970a; CH, Clarence , 1991; Hall et al (1979Hall et al ( , 1995; TD, Tom Dibblee, Dibblee (2006a, 2006b, 2006c, 2007a, 2007b, 2007c, 2007d; VS, Victor Seiders, Seiders (1982; WG, Wyatt Gilbert, Gilbert (1971). supra-Salinian strata are not restricted to the Maastrichtian stage, but are ca. 79 to ca.…”

Section: (3) Ps-big Sur Terrane Monterey County Offset To a Similarmentioning

confidence: 95%

“…Geologic mapping, for example of Dibblee and Chesterman (1953), Dibblee (2005aDibblee ( , 2005bDibblee ( , 2005c, Kellogg et al (2008), and forms the underpinnings of any palinspastic reconstruction of the southern Sierra Nevada. The research of Busby-Spera and Saleeby (1990), Barbeau et al (2005), Ducea et al (2009, 2012, Clark et al (2005), Saleeby (2008, 2010), Saleeby (1993, 1994), Saleeby Downloaded by [University of Sherbrooke] at 10:06 10 April 2015 Acknowledgements R.V.…”

Section: The Southern Nacimiento Fault (South Of Bakersfield South Tomentioning

confidence: 98%

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Salinia revisited: a crystalline nappe sequence lying above the Nacimiento fault and dispersed along the San Andreas fault system, central California

Hall

Saleeby

2013

International Geology Review

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Section: (3) Ps-big Sur Terrane Monterey County Offset To a Similarmentioning

confidence: 95%

Section: The Southern Nacimiento Fault (South Of Bakersfield South Tomentioning

confidence: 98%

Salinia revisited: a crystalline nappe sequence lying above the Nacimiento fault and dispersed along the San Andreas fault system, central California

Hall

Saleeby

2013

International Geology Review

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“…Here, rocks of petrographic types similar to those in the conglomerates are exposed in mountains flanking Soledad Basin on the south ( Fig. 1) (Higgs, 1954;Oakeshott, 1958;Crowell and Walker, 1962;Silver et al, 1963;Jennings and Strand, 1969;Silver, 1971;Carter and Silver, 1972;Carter, 1980Carter, , 1982Ehlig, 1981;Hendix and Ingersoll, 1987;Barth and Ehlig, 1989;Dibblee, 1991aDibblee, , 1999bDibblee, , 1996aDibblee, , 1996bDibblee, , 1996dMatti and Morton, 1993;Powell, 1993;Weldon et al, 1993;Barth et al, 1995). The rocks here consist of Precambrian quartzofeldspathic gneiss and amphibolite at the amphibolite facies.…”

Section: Tectonics Of Ridge Basin Region Southern Californiamentioning

confidence: 95%

Tectonics of Ridge Basin region, Southern California

Crowell¹

2003

Evolution of Ridge Basin, Southern California: An Interplay of Sedimentation and Tectonics

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Ridge Basin, an elongated basin within the San Andreas transform belt of southern California, evolved through time in a dextral strike-slip regime during the late Miocene, between ca. 11 and 5 Ma. About 14,000 m of strata accumulated in a shingled sequence as the basin depocenter migrated laterally, and successively younger beds onlapped upon the basin floor. The San Gabriel fault, the main strand of the San Andreas in the late Miocene, formed the basin's southwestern border. Along it, coarse gneissic debris, derived from the Alamo-Frazier Mountain region, accumulated to form the upper Miocene Violin Breccia, a mappable sedimentary formation. Southeast of Ridge Basin, the San Gabriel fault extends into the western San Gabriel Mountains. Southwest of Ridge Basin, across the San Gabriel fault, the upper Miocene marine Devil Canyon Conglomerate abuts against the Violin Breccia. These beds were derived from an identified source area in the western San Gabriel Mountains. Both the Devil Canyon Conglomerate and the Violin Breccia now oppose each other across the fault and constitute a "sedimentation mismatch." Restoration of ~45 km of right slip brings each unit adjacent to its appropriate source and resolves the "mismatch" so that upstream sources lie adjacent to downstream conglomerate accumulations. The Canton fault lies at the eastern margin of the Ventura Basin and is approximately overprinted by the San Gabriel fault along the southwestern margin of Ridge Basin. The Canton fault extends southward in the subsurface from southern Ridge Basin into the San Fernando Valley region. It was active with dextral slip in the middle and late Miocene between ca. 16 and 11 Ma, as shown by offset of formerly connected beds of the Mint Canyon and Caliente Formations. Total right slip on the combined Canton-San Gabriel system amounted to as much as 80 km at the end of the Miocene, but was reduced to ~75 km by Pliocene shortening on the Frazier Mountain thrust system and other structures. The Canton fault, or an aligned predecessor, formed a steep scarp at the margin of the Ventura Basin during the Oligocene before ca. 26 Ma. Coarse conglomerates of the Sespe Formation, with boulders up to 8 m, were deposited along the fault scarp at this time. These Sespe beds are now also offset laterally ~75 km from their inferred source in the western San Gabriel Mountains.Along the northeastern margin of Ridge Basin, first the Clearwater, then the Liebre, and finally the Bald Mountain faults were successively overlapped as the basin filled, showing that displacement upon these faults successively ended at the times of these Miocene overlaps.Pliocene events included transfer of major transform displacements from the San Gabriel to the modern active San Andreas fault. In the mid-Pliocene, the Frazier Mountain thrust system carried basement terrane into the northwest corner of Ridge Basin. Regional transpression continued with the reinforcement of the San Andreas "big bend" in Pliocene and Quaternary time. In the late Cenozoic, the region was upl...

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“…The Tertiary units in the drainage basin are: the Juncal shale, Matilija sandstone, Cozy Dell shale, Coldwater sandstone and Sespe sandstone (Dibblee and Ehrenspeck, 1986). The Juncal, Matilija, Cozy Dell and Coldwater formations are present in the upper Rattlesnake Creek drainage basin and serve as potential sediment sources.…”

Section: Field Areamentioning

confidence: 99%