1 edition of Geochemical evidence on the nature of the basement rocks of the Sierra Nevada, California found in the catalog.
Geochemical evidence on the nature of the basement rocks of the Sierra Nevada, California
Bibliography: p. 10-13.
|Statement||by Ivan Barnes ... [et al.].|
|Series||Geological Survey water-supply paper ;, 2181, U.S. Geological Survey water-supply paper ;, 2181.|
|Contributions||Barnes, Ivan, 1931-|
|LC Classifications||QE515 .G354 1981|
|The Physical Object|
|Pagination||iii, 13 p. :|
|Number of Pages||13|
|LC Control Number||81607895|
High-silica rhyolites of the Sierra La Primavera, a late Pleistocene center near Guadalajara, are extremely Sr-poor (– ppm), yet (with one exception) values of 87Sr/86Sri are relatively low at – Values of Nd/Nd for all the rhyolites are (within errors) identical to a basalt at These surprisingly primitive values, along with feldspar ∂18O of Cited by: Geology of the Sierra Nevada book. Read 11 reviews from the world's largest community for readers. Writing with verve and clarity, Mary Hill tells the st /5.
Strontium isotopic study of plutons and associated rocks of the southern Sierra Nevada and vicinity, California. Bulletin. PLATE 1. Reconnaissance geologic map of basement rocks of the southernmost Sierra Nevada, California 2. Map showing locations of chemically and modally analyzed granitic-rock samples FIGURES Maps showing: Page 1. Location and setting of the study area in the southernmost Sierra Nevada, California 2 by:
Writing with verve and clarity, Mary Hill tells the story of the magnificent Sierra Nevada--the longest, highest, and most spectacular mountain range in the contiguous United States. Hill takes us from the time before the land which would be California even existed, through the days of roaring volcanoes, violent earthquakes, and chilling ice sheets, to the more recent history of the Sierra. morillonite, or both, during weathering of plagioclase feldspar. A ratio of silica with respect to sodium, found in some samples, suggests formation of kao- linite by weathering of hornblende. These reactions involve only water and minerals known Cited by:
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Rocks of the Sierra Nevada with depth. One line of evidence for the nature of the un- exposed rocks at depth in the Sierra Nevada is the chemical and isotopic compositions of fluids issuing from the natural springs in the range.
The isotopic composition of carbon dioxide (CO2) has been used to identify metamorphism ofCited by: Additional Physical Format: Online version: Geochemical evidence on the nature of the basement rocks of the Sierra Nevada, California. Washington: U.S.
G.P.O. Introduction: Memorial volume to Honor Ivan Barnes (–) KISTLER R. W., MARINER R. and PRESSER T. () Geochemical evidence on the nature of the basement rocks of the Sierra Nevada, California.
U.S. Geol. SurE. Water-Supply Paper Mariner R.H., Presser mical evidence on the nature of the basement rocks of Author: Y.K.
Kharaka, H.L. Barnes. Geology of Paleozoic rocks in eastern Sierra Nevada roof pendants, California. Rocks in the major roof pendants of the eastern Sierra Nevada have been mapped in various degrees of detail to bet- ter understand their stratigraphy, internal structure, and geologic history, and their relationships to other rock assem- blages in the region.
Regional-scale variations in soil geochemistry were investigated in a 20,km 2 study area in northern California that includes the western slope of the Sierra Nevada, the southern Sacramento Valley and the northern Coast by: Pb and Sr systematics of ultrapotassic and basaltic rocks from the central Sierra Nevada, California.
Abstract. This study presents Sr and Pb isotopic ratios and Rb, Sr, U, Th, and Pb concentrations of an ultrapotassic basaltic suite and related rocks from the central Sierra Nevada, by: J.
Saleeby, "Geochemical mapping of the Kings-Kaweah ophiolite belt, California—Evidence for progressive mélange formation in a large offset transform-subduction initiation environment", Mélanges: Processes of Formation and Societal Significance, John Wakabayashi, Yildirim Dilek.
Abstract. The Shoo Fly Complex, the remnants of an early to middle Paleozoic subduction system, contains the Culbertson Lake allochthon. Included in the Culbertson Lake allochthon are the post-Cambrian and pre-Upper Devonian Quartz Hill, Toms Creek, and McMurray Lake cherts. Geochemical data derived from these three units plot on Cited by: the southern Sierra Nevada batholith is structurally more com-plex than the central and northern Sierra Nevada batholith.
As a result, the southern Sierra Nevada batholith deviates from the well-preserved, intact primary geochemical and petrologic spa-tial variations of the central and northern Sierra Nevada batholith.
The formation of Earth's continents is unclear. A review of the geochemical composition of crust formed above subduction zones across the globe suggests that subduction and relamination of buoyant Cited by: Petrologic, structural, geochronologic, and geochemical data from rocks exposed in the western foothills of the Sierra Nevada batholith just south of the western Foothills metamorphic belt (the Stokes Mountain region) provide new insight regarding several poorly understood aspects of the development of the compound Sierra Nevada arc.
PDF | OnMichael J Dorais and others published THE NEW HAMPSHIRE PLUTONIC SUITE: MINERALOGICAL AND GEOCHEMICAL EVIDENCE FOR SOURCE ROCK COMPOSITIONS, PARTIAL MELTING REACTIONS, AND. There is no sharp geochemical discontinuity in the crust between the eastern and western segments of the Jiangnan orogen (JO).
Instead, there is a gradual decrease in whole-rock Nd-isotope ratios of the metasedimentary basement rocks and granitoids, and the Hf-isotope ratios of magmatic zircons from the granitoids, from east to west across the by: 1 Introduction. It is known that interaction of the mantle wedge with fluids derived from dehydration of subducting oceanic crust is responsible for supra‐subduction‐zone (SSZ) arc volcanism [e.g., Hawkesworth et al., ; Tatsumi and Eggins, ; Spandler and Pirard, ].This interaction is a process of source mixing between slab‐derived fluids and the Cited by: The geochemistry and geochronology of Early Jurassic igneous rocks from the Sierra Nevada de Santa Marta, NW Colombia, and tectono-magmatic implications June Journal of South American Earth.
Structure and tectonics of an early mesozoic oceanic basement in the Northern Sierra Nevada Metamorphic Belt, California: Evidence for transform faulting and ensimatic arc evolution. (PDF Available) in Tectonics 8(5) April with : Yildirim Dilek.
While appreciable volumes of juvenile terranes in North America (Canadian Cordillera, Sierra Nevada and Peninsular Range, Appalachians) have been documented based on Nd isotopic data, the mass of new crust formed in the East-Central Asian Orogenic Belt (ECAOB), eastern part of the Altaid Tectonic Collage, appears to be much greater than the Cited by: Uraniferous Holocene sediments occur in the Carson Range of Nevada and California, U.S.A., between Lake Tahoe and Carson Valley.
The hosts for the uranium include peat and interbedded organic-rich sand, silt, and mud that underly valley floors, fens, and marshes along stream valleys between the crest of the range and the edge of Lake by: Book Chapter Day 5: Mesozoic volcanic rocks of the central Sierra Nevada Arc Author(s) Scott R.
Paterson Department of Earth Sciences, University of Southern California, Los Angeles, CaliforniaUSA. Search for other works by this author on: GSW. Google Scholar. Doi. Wakabayashi, J., and Sawyer, T.L.,Neotectonics of the Sierra Nevada and the Sierra Nevada-Basin and Range Transition, California, with field trip stop descriptions for the northeastern Sierra Nevada: in Brooks, E.R., and Dida, L.T., eds., Field guide to the geology and tectonics of the northern Sierra Nevada, California Division of Mines.
Mafic complexes in the central Sierra Nevada batholith record valuable geochemical information regarding the role mafic magmas play in arc magmatism and the generation of continental crust. In the intrusive suite of Yosemite Valley, major and trace element compositions of the hornblende-bearing gabbroic rocks from the Rockslides mafic complex Cited by: This book is basically a field guide to the geology of the Sierra Nevada mountains.
There is lots of information about rock types and where they are found, and many excellent color photos. There is also a very good description of the history of the geology of the Sierra Nevada and California, how they were formed by tectonic by: Pliocene Potassic Magmas from the Kings River Region, Sierra Nevada, California: Evidence for Melting of a Subduction-Modified Mantle Article (PDF .