Download or read book Paleogeography of the Western Transverse Range Province California written by Catherine A. Rigsby and published by . This book was released on 1998 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Depositional Environments Paleogeography and Tectonic and Eustatic Implications of the Oligocene early Miocene Vaqueros Formation in the Western Transverse Ranges California written by Catherine Ann Rigsby and published by . This book was released on 1989 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Geological Survey Bulletin written by and published by . This book was released on 1983 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Strontium Isotope Evidence for the Age of the Vaqueros Formation and Latest Oligocene Marine Transgression in the Northern Santa Maria Province Central California written by Margaret A. Keller and published by . This book was released on 1996 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conglomerates of the Upper Middle Eocene to Lower Miocene Sespe Formation Along the Santa Ynez Fault written by Jeffrey L. Howard and published by . This book was released on 1995 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Geological Survey Bulletin written by Colin F. Williams and published by . This book was released on 1983 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphatic concretions occur within diatomite in the upper part of the Miocene Monterey Formation near Lompoc, Calif. Absence of disruption of fine laminar bedding in the associated sediment by the concretions shows that they formed after complete compaction of the enclosing sediment.The concretions exhibit a strongly concentric color, chemical, and mineralogic zonation. Many of them are composed of a nucleus in which vivianite is the dominant mineral. Amorphous ferric phosphate, mitridatite, and francolite are the dominant phosphatic phases in successive layers toward the surface of the concretions. Cd and As contents increase tenfold from the nucleus outward, reaching a maximum of 2,000 ppm, whereas Ni content, with a maximum of 720 ppm, and Co content show the opposite trend. This mineralogy and elemental composition favor accretion under conditions of continuously increasing Eh and pH, during uplift into the fresh-ground-water zone of the terrestrial environment. Shale-normalized rare-earth-element patterns, however, suggest a marine source for the elements biogenic debris consisting of opal-A, organic matter, and carbonates of the enclosing sediment.

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Download or read book Miocene and Oligocene Petroleum Reservoirs of the Santa Maria and Santa Barbara Ventura Basins California written by Margaret A. Keller and published by . This book was released on 1990 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Index to Graduate Theses and Dissertations on California Geology 1973 1989 written by and published by . This book was released on 1978 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Cenozoic Paleogeography of the Western United States written by A. Eugene Fritsche and published by Pacific Section Society of Economic Paleontologists & Mineralogists. This book was released on 1995 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Paleogeography of the Western Transverse Range Province California written by Catherine A. Rigsby and published by . This book was released on 1998 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: