Download or read book Tectonic Significance of Early Miocene Basin Formation in the Box Canyon Area Mojave Desert written by Wayne K. Sanner and published by . This book was released on 1985 with total page 134 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 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mojave Desert written by and published by . This book was released on 1994 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mineral Resources of the Newberry Mountains and Rodman Mountains Wilderness Study Areas San Bernardino County California written by R. J. Goldfarb and published by . This book was released on 1983 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sedimentary and Tectonic Evolution of Miocene Extensional Basins Central Mojave Desert California written by Robert P. Fillmore and published by . This book was released on 1994 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book This Extended Land written by Geological Society of America. Cordilleran Section. Meeting and published by . This book was released on 1988 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tectonic Significance of Late Miocene Deposits in the Southern Fry Mountains Mojave Desert California written by Cleet Francis Carlton and published by . This book was released on 1988 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Investigations of an Active Margin written by and published by . This book was released on 1994 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1992 with total page 1544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preliminary Index to Graduate Theses and Dissertations on California Geology 1982 1988 written by and published by . This book was released on 1989 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Download or read book Provenance of Miocene Strata of the El Paso Basin Southern California written by Bret Desmond Sample and published by . This book was released on 2019 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detrital zircon U-Pb and Hf analyses of Miocene strata in the El Paso Basin provide new constraints on the paleogeography of the northern Mojave and southern Sierra Nevada region. The El Paso Basin is located between the fault-bounded southeastern flank of the Sierra Nevada and the northern margin of the Mojave Desert, which is bounded by the Garlock fault and the El Paso Mountains immediately north of it. Due to its unique location, El Paso Basin strata can record important indicators of tectonic activity in surrounding basement blocks and geologic structures. Basin strata consist of the Paleogene Goler Formation and overlying Miocene Ricardo Group, made up of the volcaniclastic Cudahy Camp Formation and fluvio-lacustrine Dove Spring Formation. A sandstone near the base of the Cudahy Camp Fm yielded a unimodal detrital zircon U-Pb peak age of ca. 250 Ma, indicating local sourcing from the Permian-Triassic El Paso Mountains. Higher in the section, a sandstone from the upper Cudahy Camp Fm yielded a unimodal DZ peak age of ca. 18 Ma. That age supports previous correlation of the Cudahy Camp Fm with the Eagle Crags Volcanic Field, which is south of the Garlock fault and now offset ~64 km to the northeast. The lower Dove Spring Formation is dominated by locally derived boulder and pebble conglomerate with 14 Ma DZ age peaks. The sediment texture, DZ age population, and north-directed paleocurrents indicate local sourcing from the northern Mojave, likely the Lava Mountains area. Higher in the Dove Spring Formation, there is an abrupt change in provenance at ca. 12 Ma marked by the influx of Cretaceous zircon grains with ages ranging from ca. 124-74 Ma and dominant age peaks at ca. 88 Ma. Plutons with ages of 110-85 are characteristic of the voluminous Late Cretaceous Sierra Nevada batholith, but are also abundant throughout much of the Mojave block, making provenance ambiguous based on DZ age alone. Hf isotope analyses of dated detrital zircon grains were performed in order to help distinguish between source areas with overlapping U-Pb ages. Initial eHf values in Late Cretaceous detrital zircons range from -10.7 to +7.1, generally becoming more negative through time. Based on available basement geochronology and isotope data, most of these grains are interpreted to derive from the southeastern Sierra Nevada, though derivation of some of these grains from sources in the Mojave Block cannot be precluded. Analysis of detrital zircons in the El Paso Basin leads to the following interpretations: 1) basin development rejuvenated in the Early Miocene marked by deposition of the Cudahy Camp Formation in response to uplift of the El Paso Mountains and possible normal movement on a nascent Garlock fault; 2) the provenance of sediment was north-directed through the middle Miocene from volcanic centers south of the Garlock fault; 3) left-lateral slip on the Garlock fault activated by 12.5 Ma, providing the Lava Mountains a pathway to the El Paso Basin; and 4) the arrival of Late Cretaceous zircons between ca. 12-10 Ma suggests uplift of the southern Sierra Nevada, perhaps via activation of normal movement on the Sierra Nevada Frontal fault system; consistent with Late Cenozoic uplift models, but 2-7 m.y. earlier than previous estimates.

Download or read book Cenozoic Tectonic Rotation of the Mojave Desert California as Indicated by Paleomagnetic Studies written by Michael James Valentine and published by . This book was released on 1990 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Early Miocene Geologic History of the Old Woman Mountains Area Eastern Mojave Desert California written by Martin Albert Knoll and published by . This book was released on 1985 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cenozoic Basins of the Death Valley Region written by Lauren Albert Wright and published by Geological Society of America. This book was released on 1999-01-01 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tertiary Tectonics and Sedimentation in the Cuyama Basin San Luis Obispo Santa Barbara and Ventura Counties California written by W. J. M. Bazeley and published by . This book was released on 1988 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plutonism in the Central Part of the Sierra Nevada Batholith California written by Paul C. Bateman and published by . This book was released on 1992 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of the structure, composition, and pre-Tertiary history of the Sierra Nevada batholith in the Mariposa 1 by 2 quadrangle.