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Cedros Island

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Series: GSA Special Papers
Published: 01 January 2003
DOI: 10.1130/0-8137-2374-4.43
Journal Article
Journal: GSA Bulletin
Published: 01 May 2002
GSA Bulletin (2002) 114 (5): 515–527.
...Salvatore Critelli; Kathleen M. Marsaglia; Cathy J. Busby Abstract The Jurassic Gran Cañon Formation (Cedros Island, Baja California, Mexico) constitutes an unusually well preserved and exposed example of ancient backarc-basin fill. Petrofacies analysis conducted on tuffaceous sandstone and tuff...
FIGURES | View All (10)
Journal Article
Journal: GSA Bulletin
Published: 01 April 1993
GSA Bulletin (1993) 105 (4): 547–562.
...DOUGLAS P. SMITH; CATHY J. BUSBY Abstract Marine, mid-Cretaceous fore-arc strata on Cedros Island (Vargas and Pinos Formations) record the onset of extensional brittle deformation of the upper crust concomitant with initial uplift of blueschist-grade rock from great depth. The pre-extensional...
Journal Article
Journal: GSA Bulletin
Published: 01 July 1991
GSA Bulletin (1991) 103 (7): 966–969.
Journal Article
Journal: GSA Bulletin
Published: 01 July 1990
GSA Bulletin (1990) 102 (7): 983–991.
... was sampled on Cedros Island, and a 30-m-thick and two smaller sections of chert were sampled on the San Benito Islands to the west. A site in pillow basalt underlying the chert also was sampled on Cedros Island. The sections of chert on Cedros Island and the San Benito Islands contain radiolaria ranging...
Journal Article
Journal: GSA Bulletin
Published: 01 February 1988
GSA Bulletin (1988) 100 (2): 218–233.
...CATHY J. BUSBY-SPERA Abstract A rifted arc-ophiolite assemblage and over-lying volcaniclastic rocks, all of late Middle Jurassic age, represent a fragment of the frontal-arc margin of a back-arc basin, now exposed on Cedros Island in Baja California (Mexico). Ophiolite generation was immediately...
Journal Article
Journal: Geology
Published: 01 November 1984
Geology (1984) 12 (11): 697.
Journal Article
Journal: Geology
Published: 01 November 1984
Geology (1984) 12 (11): 698.
Journal Article
Journal: Geology
Published: 01 September 1983
Geology (1983) 11 (9): 552–556.
... of Puerto Escondido, San Andrés-Cedros, and Morro Hermoso, and of microprobe analyses of calcic clinopyroxene phenocrysts, Puerto Escondido and San Andrés-Cedros are available by requesting Supplementary Data 83-16 from Documents Secretary, Geological Society of America, P.O. Box 9140, Boulder, CO 80301. ...
Image
Figure 1. Generalized geologic map of <span class="search-highlight">Cedros</span> <span class="search-highlight">Island</span> (modified from  Kilmer,...
Published: 01 May 2002
Figure 1. Generalized geologic map of Cedros Island (modified from Kilmer, 1977, 1984 ) and location of the measured sections shown in Figure 2 .
Journal Article
Journal: GSA Bulletin
Published: 01 July 1990
GSA Bulletin (1990) 102 (7): 852–864.
... basalt on Cedros Island is overlain by about 40 m of radiolarian ribbon chert ranging in age from Early Jurassic or older to Early Cretaceous; the chert is overlain by thin-bedded turbidites. On San Benito West Island, radiolarian ribbon chert is interbedded with volcanogenic rocks, including...
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1970
AAPG Bulletin (1970) 54 (3): 559.
...Ronald W. Morin Abstract A study of deep-sea cores, which approximate the extent of the California Current, indicates that faunal changes occur at or near the lithologic Pleistocene-Holocene boundary off San Francisco and Los Angeles, California, but generally below this boundary off Cedros Island...
Journal Article
Journal: GSA Bulletin
Published: 01 May 1984
GSA Bulletin (1984) 95 (5): 513–521.
...J. R. BOLES; C. A. LANDIS Abstract The Middle Jurassic Coloradito Formation of Cedros Island, Baja California, is a fine-grained flysch sequence that includes some coarse debris flow–filled channels. Sedimentary mélange (olistostrome) is widespread, and is composed of sheared black argillite...
Journal Article
Journal: GSA Bulletin
Published: 01 January 1992
GSA Bulletin (1992) 104 (1): 18–31.
...SUZANNE L. BALDWIN; T. MARK HARRISON Abstract Thermochronologic, petrologic, and geochemical analyses of epidote-amphibolite-, amphibolite-, eclogite-, and blueschist-facies blocks in serpentinite-matrix mélanges from East San Benito Island and Cedros Island, west-central Baja California, provide...
Journal Article
Published: 01 May 2003
Journal of Paleontology (2003) 77 (3): 442–453.
... strata on Cedros Island, west coast of Baja California, Mexico. It is the earliest potamidid known from the rock record of the Pacific Slope. Alamirifica corona new genus and species, whose suprageneric relationships are uncertain, is from Turonian strata in southern California. The holotype has a round...
FIGURES
Series: GSA Special Papers
Published: 01 January 1981
DOI: 10.1130/SPE184-p17
... to southern California and northward to the head of the Gulf of Alaska. Leptopecten andersoni (Arnold), a late early Miocene to middle Miocene species, ranged southward to Baja California Sur. Lituyapecten dilleri (Dall) ranged northward to near the head of the Gulf of Alaska and southward to Cedros...
Journal Article
Published: 01 March 1964
Journal of Paleontology (1964) 38 (2): 393–396.
...Johanna M. Resig Abstract A modern southern limit of the inner shelf foraminifer Elphidiella hannai has been located north of Point Dume, southern California. Pleistocene deposits contain the species as far south as Cedros Island, Baja California. A northward migration of more than 6 degrees...
Journal Article
Journal: AAPG Bulletin
Published: 01 February 1962
AAPG Bulletin (1962) 46 (2): 275.
...W. L. Pratt ABSTRACT Studies have been made of about 1,300 glauconitic samples from the sea floor off southern California, in Monterey Bay, California, and off Cedros Island, Baja California. The principal depositional environments are continental terraces, banks, ridges, and basin slopes. Clay...
Journal Article
Published: 01 March 1953
Journal of Sedimentary Research (1953) 23 (1): 24–33.
...George Shumway Abstract Fifty-three pebbles and small cobbles, and several pieces of asphalt, were dredged from the deep Pacific Ocean 60 nautical miles southwest of Cedros Island, Baja California, at a depth of about 2100 fathoms. Thirteen of the rocks are igneous, 12 are metamorphic, and 28...
Image
(a) Bouguer gravity and (b) total magnetic intensity anomalies for the stud...
Published: 04 February 2015
Figure 10. (a) Bouguer gravity and (b) total magnetic intensity anomalies for the studied region (blue rectangle in Figure  9b ) in UTM coordinates. The black dotted line indicates the boundary of the Cedros Island.