 | | Report (issue) | | Range and northern San Joaquin Valley, central California by J. Alan Bartow1 and TorH.Nilsen2 Open-File...1990 , Menlo Park, California 2Applied Earth Technologies, Inc, Redwood City, California ABSTRACT The Great...approximately coincident with the present Great Valley of California and adjacent parts of the Coast Ranges; however...118C Figure 1. Index map of northern and central California showing principal components of the late Mesozoic...(Figs. 3,4, 5, 6): DP, Del Puerto Creek; PP, Pacheco Pass quadrangle; PH, Panoche Hills; C, Coalinga area; |  | | Report (issue) | | GEOLOGIC MAP OF O'NEILL FOREBAY, WESTERN MERCED COUNTY, CALIFORNIA by DARRELL G. HERD Open-File Report 79-359...east flank of the Diablo Range in north-central California is shown as an eastward-dipping monocline by...valley edge. Near O'Neill Forebay in western Merced County, Tulare Formation gravels and the intercalated...the Great Valley sequence in the encompassing Pacheco Pass 15 f Quadrangle was explored and described by...construction of O'Neill and San Luis Dams and the California Aqueduct, detailed geologic site investigations |  | | Report (issue) | | Seismological Society of America, San Francisco, California, March 1991. This guidebook is available for...NORTHERN CALIFORNIA: San Francisco to the Sierra Nevada Editors DORIS SLOAN University of California, Berkeley...and DAVID L. WAGNER Division of Mines and California Department Geology of Conservation OF MINES...DEPOS GEOLOGIC EXCURSIONS C\j IN NORTHERN CALIFORNIA Geological Setting of the San Francisco Bay...Fault, San Depositional and Other Features of the Merced Formation South of San Francisco. Loma (5) |  | | Report (issue) | | 589(4) X-ray Powder Pattern: Laytonville, California, USA. (ICDD 19-571). 9.18 (100), 7.91 (80), 3.25...(35) Chemistry: (1) Laytonville district, California, USA; analysis not given, stated 3+ to correspond...Franciscan Formation (Laytonville district, California, USA). Association: Deerite, zussmanite, stilpnomelane...stilpnomelane, spessartine, riebeckite, quartz, aegirine, grunerite, aragonite, manganoan siderite, ferroan...(Laytonville district, California, USA). Distribution: In the USA, in California, from the Laytonville |  | | Journal (article/letter/editorial) | | tschermakitic hornblende, diopsidic pyroxene (sahlite), quartz, 177 Centre 3 igneous complex, Ardnarnurchan, laminated...pentlandite, vaesite, bismuthinite, chalcanthite, quartz, coppite, frigidite, 99 Jugoslavia Brezovica, howieite...halite, trona, 34 I Sfibren-kalaalan Eskisehir county, deerite, 25i Iraq Sinjar, Mosul, sinjarite, 643...INDEX lO83 Sterling Hill mine, Ogdensburg, Sussex county, New Jersey, sarkinite, 68 I Victory mine, Custer...arrojadite, 232 Ward Creek, Cazadero, Sonoma county, California, blueschist-facies amphiboles, 741; deerite |  | | Journal (article/letter/editorial) | | Agrell at the Laytonville Quarry, Mendocino County, California, and named as such in Agrell et al. (1965)...Mendocino Co., California (Agrell et al., I965) 2. Ward Creek, Cazadero, Sonoma Co., California (Coleman and...Panoche Pass, San Benito Co., California (Muir Wood, 1977) 4-Pacheco Pass, Santa Clara and Merced Cos.,... California (Muir Wood, 1977) 5- Covelo, Mendocino Co., California (Muir Wood, I977) 6. Russian River...River, boundary of Sonoma with Mendocino Cos., California (Chesterman, unpubl.) 7- Powers Quarry, Coos Co |  | HARA, Tomomi, TSUJIMORI, Tatsuki, FLORES, Kennet E., KIMURA, Jun–Ichi (2019) Sr–Pb isotope compositions of lawsonites in a Pacheco Pass metagraywacke, Franciscan Complex, California. Journal of Mineralogical and Petrological Sciences, 114 (6) 296-301 doi:10.2465/jmps.190727 | Journal (article/letter/editorial) | | compositions of lawsonites in a Pacheco Pass metagraywacke, Franciscan Complex, California Tomomi HARA*, Tatsuki...Sciences, Brooklyn College of CUNY, Brooklyn, NY 11210, USA † Department of Earth and Planetary Sciences, American...Museum of Natural History, New York, NY 10024–5192, USA ‡ Japan Agency for Marine–Earth Science and Technology...minerals within a Pacheco Pass metagraywacke of the Franciscan Complex, California. Those minerals and...and the associated quartz form the distinctive very low–temperature and high–pressure metamorphic law |  | | Journal (article/letter/editorial) | | Metagraywackes from the Diablo Range, Central California Coast Ranges by W. G. ERNST Department of Geology...Planetary Physics, University of California, Los Angeles, California 90024 ABSTRACT The complexly folded...THE PROBLEM T H E Diablo Range of the Central California Coast Ranges is located approximately 60-200...Generalized areal geologic relations of western California are presented in Fig. 1. Some authors refer to...Working chiefly in the Yolla Bolly area of northern California, Blake (1965) and Blake et al. (1967, 1969) have |  | | Journal (article/letter/editorial) | | ARAGONITE IN THE FRANCISCAN ROCKS OF THE PACHECO PASS AREA, CALIFORNIA BarBs McKno, DeparlmentoJGeology,IJniaersity...wall rock throughout 140 square miles in the Pacheco Pass area, 80 miles southeast of San Francisco. The...constituent of a serpentine mass near New Idria, California, that also contains jadeite. Metamorphic aragonite...glaucophaneschist beit in the Ward Creek area of northern California (Coleman and Lee, 1961). The evidence in both...MOITTEREY I Frc. 1. Map showing location of Pacheco Pass area. ARAGONITEIN FRANCISCANROCKS 381 out |  | | Journal (article/letter/editorial) | | recrystallization of Franciscan greywackes from Pacheco Pass, California S. MARUYAMA* AND J. G. LIOU Department...Geology, Stanford University, Stanford, California 94305, USA AND Y. SASAKURA Department of Earth Science...Low-temperature metamorphism of the Franciscan complex at Pacheco Pass occurs at P - T conditions near the so-called...zones are defined: (I) albite-quartz zone, (II) albite-rich, albite-quartz clinopyroxene assemblage, (Ili)...choice of experimental data for the jadeite albite-quartz curve; it ranges from 4.5 to 8 kbar. A gently folded |  | | Report (chapter) | | Franciscan and Sanbagawa blueschist terranes of the California Coast Ranges and central Shikoku, respectively...faults. In situ metagraywackes of the extended Pacheco Pass area exhibit the following progressive metamorphic...west to east: (1) albite + quartz + lawsonite ± calcite; (2) albite + quartz + lawsonite ± aragonite; and...and (3) jadeitic pyroxene + quartz + lawsonite ± aragonite. Nearly all mafic metavolcanics carry lawsonite...synforms, and 1 2 LOW-GRADE METAMORPHISM IN CALIFORNIA AND JAPAN steeply dipping faults have been recognized |  | | Journal (article/letter/editorial) | | Blueschist and Eclogite of the Franciscan Complex, California E.H. Brown and J.Y. Bradshaw* Department of Geology...Washington University, Bellingham, Washington 98225, USA Abstract. The phase relations of pyroxenes, amphiboles...mineral assemblages in the Franciscan Complex of California. Of special interest in this work are the metamorphic...Laytonville, Tiburon, Valley Ford, New Almaden, and Pacheco Pass areas (Fig. 1). It is also heavily dependent...given by Brown (1977). Mineral Abbreviations Qtz=quartz, Ab=albite, Chl=chlorite, Lw=lawsonite, Ph= phengite |  | | Journal (article/letter/editorial) | | of jadeitic pyroxene, northern Diablo Range, California B . E . P A T R I C K * A N D H. W . D A Y Department...Department o f Geology, The University of California, Davis, CA 95616, USA ABSTRACT A reaction producing jadeitic...projection from hematite, lawsonite, chlorite, quartz and H 2 0 on to the NaA102-Fe0-Mg0 ternary confirmsthe...jadeite + 0.57 glaucophane+ 3.09 lawsonite + 5.26 quartz. Metagreywackes of the northern Diablo Range were...metagreywackes in the Diablo Range of central California (Franciscan Complex) has long attracted the interest |  | | Journal (article/letter/editorial) | | 900-km-long Franciscan accretionary prism of the California Coast Ranges consists chiefly of greywackes and...diagrammed in Figure IB. As examples, metamorphism in California and east-central China can be related to two...relatively high P / T metamorphic belts from western California and east-central China—the contrasting Pacific...Overview of Western California Geologic setting of northern and central California The late Mesozoic continental...of northern and central California, based on the geologic map of California (Jennings, 1977) and mineral |  | | Journal (article/letter/editorial) | | perspectives from the Franciscan Complex of California, USA Loren A. Raymond a ab Department of Geology...Boone, NC 28608, USA b Coast Range Geologic Mapping Institute, Santa Rosa, CA 95405, USA Published online:...perspectives from the Franciscan Complex of California, USA, International Geology Review, 57:5-8, 801-823...perspectives from the Franciscan Complex of California, USA Loren A. Raymonda,b* a Department of Geology...Boone, NC 28608, USA; bCoast Range Geologic Mapping Institute, Santa Rosa, CA 95405, USA Downloaded by |  | | Journal (article/letter/editorial) | | Abstract In the Franciscan Complex exposed in the California Coast and Diablo ranges (representing depths...levels. Salinities of fluid inclusions in vein quartz are mostly lower than that of seawater, consistent...liberated at greater depths, precipitating calcite and quartz along down-T, down-P paths, and mobilizing trace...Complex; Bailey et al., 1964). The Catalina Schist, California, is also dominantly metasedimentary (~70% metagraywacke...and Diablo ranges, California and on similar paleoaccretionary rocks in Baja California (Western Baja Terrane; |  | Banno, Shohei, Shibakusa, Hidehiko, Enami, Masaki, Wang, Chang-Lung, Ernst, W.G. (2000) Chemical fine structure of Franciscan jadeitic pyroxene from Ward Creek, Cazadero area, California. American Mineralogist, 85 (11) 1795-1798 doi:10.2138/am-2000-11-1222 | Journal (article/letter/editorial) | | jadeitic pyroxene from Ward Creek, Cazadero area, California SHOHEI BANNO,1,* HIDEHIKO SHIBAKUSA,2,† MASAKI...Environmental Sciences, Stanford University, Stanford, California 94305, U.S.A. ABSTRACT Jadeitic pyroxenes in...both from Ward Creek, Cazadero area, western California, were examined with the electron microprobe....within the P-T stability field of pure jadeite + quartz. I NTRODUCTION High-pressure Franciscan metamorphic...Diablo Range of central California and in the Cazadero area of northern California. Recently, based upon |  | | Journal (article/letter/editorial) | | Accepted Manuscript The Franciscan Complex (California, USA) – The model case for return-flow in a subduction...Alexander Krohe , The Franciscan Complex (California, USA) – The model case for return-flow in a subduction...FOCUS’ Review paper The Franciscan Complex (California, USA) – the model case for return- PT flow in...case is the Franciscan Subduction Complex (FSC, USA; see table 1 for abbreviations) to which the RFSC...albite+lawsonite reacts to epidote, paragonite and quartz (Ward Creek-HealdsburgJenner area; Fig. 3B; Maruyama |  | | Journal (article/letter/editorial) | | Santa Rosa, CA, USA; bDepartment of Geology, Appalachian State University, Boone, NC, USA ABSTRACT ARTICLE...ARTICLE HISTORY The Franciscan Complex of California is better understood now than in 1972, when Berkland...mass comprising the supramantle basement of the California-Southern Oregon Coast Ranges exposed east of...collision-generated orogens. The Franciscan Complex of California (USA) is now considered by many to be the archetypical...Institute, 3327 Cypress Way, Santa Rosa, CA 95405, USA Downloaded by [University of Florida] at 06:42 |  | | Journal (article/letter/editorial) | | 1111/j.1525-1314.2009.00842.x Microfabric of folded quartz veins in metagreywackes: dislocation creep and...trepmann@rub.de) ABSTRACT The microfabrics of folded quartz veins in fine-grained high pressure–low temperature...of the Franciscan Subduction Complex at Pacheco Pass, California, were investigated by optical microscopy...shape preferred orientation of mica and clastic quartz without any signs of crystal-plastic deformation...absence of crystal-plastic deformation of clastic quartz suggests that the flow stress in the host metagreywacke |  | | Journal (article/letter/editorial) | | tectonometamorphic unit in the Franciscan Complex, western California W. G. Ernst To cite this article: W. G. Ernst...tectonometamorphic unit in the Franciscan Complex, western California, International Geology Review, DOI: 10.1080/00206814...tectonometamorphic unit in the Franciscan Complex, western California W. G. Ernst Department of Geological Sciences...Sciences, Stanford University, Stanford, CA, USA ARTICLE HISTORY Downloaded by [University of Sussex Library]...The Franciscan Yolla Bolly terrane of the NE California Coast Ranges consists mainly of quartzose metagreywackes |  | | Journal (article/letter/editorial) | | Franciscan Complex, Mt. Hamilton Area, Northern California a M. C. Blake & C. M. Wentworth b a U.S....98225 b U.S. Geological Survey , Menlo Park, California, 94025 Published online: 06 Jul 2010. To cite...Franciscan Complex, Mt. Hamilton Area, Northern California, International Geology Review, 41:5, 417-424...Franciscan Complex, Mt. Hamilton Area, Northern California* M. C. BLAKE, J R . U.S. Geological Survey,...October 2014 U.S. Geological Survey, Menlo Park, California 94025 Abstract Truncation of metamorphic isograds |  | | Report (chapter) | | Geophysics University of California, (3) Japan Los Angeles, California 90024 Institute of Mineralogy...more than CaCO3-bearing the report in the California Coast Ranges, and in central Shikoku by Ernst...those specimens. assemblages Mountain, Pacheco from Pass, 499 in situ Shirataki and 19- The...Volcanics from the Stoneyford Quadrangle, ea Quartz Albite Chlorite Stilpnome lane White mica Lawsonite...(5:0) 8 (30) 10 (30) C 5 (20) 3.01 Mineral Quartz Albite Chlorite Stilpnomelane White mica Lawsonite |  | | Journal (article/letter/editorial) | | studies of the Franciscan formation, Coast Ranges, California* MORDECKAIMAGARITZand HUGH P. TAYLOR,JR. Division...Cahfornia Institute of Technology. Pasadena. California 91115. U S.A. (Recrrord 14 Aprd 1975; ucceptcd...graywackes. The vein quartz (6 = + 15to + 20) is invariably richer in IsO than the host rock quartz, and in most...most of the rocks the 6’sO of the elastic quartz 1s similar to the S’s0 of the whole rock. Mineral assemblages...microcrystalline silica of organic origin (now wholly quartz). The overlying unit. the Toro Formation, is composed |  | | Journal (article/letter/editorial) | | Planetary Physics, University of California, Los Angeles, California 90024 Mineral Parageneses in Franciscan...Franciscan Metamorphic Rocks, Panoche Pass, California Abstract: Approximately 33 square miles of Franciscan...Franciscan terrane near Panoche Pass in the Diablo Range of the central California Coast Ranges were mapped...aragonite and the jadeitic pyroxene + lawsonite (+ quartz) compatibility than to convert green- stones to...system Ab-An-H2O suggest that metamorphism at Panoche Pass involved temperatures of about 200-300°C, lithostatic |
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