 | | Journal (article/letter/editorial) | | Exploration in North America The Mountain Pass deposit, California Anthony N. Mariano1 and Anthony Mariano Jr.2...and geology. The Mountain Pass carbonatite in California historically has been a major world source for...but have rock past producer, Mountain Pass in California, is average total REE (ÎŁREE) grades running <0...be attractive targets by Mountain Pass mine in California. Mountain Pass was for companies and investors...concenwhile TbPO4 through LuPO4 have the tetragonal zircon trations occur in beach sands and river placers |  | | Journal (article/letter/editorial) | | and Geology, University of Nevada, Reno, Nevada, USA Abstract Rare earth elements (REE) have been mined...when placer monazite was produced in the southeast USA. Since the 1960s, however, most North American REE...from a carbonatite deposit at Mountain Pass, California, and most of the worldâs REE came from this source...most other carbonatites. Elsewhere in the western USA, carbonatites have been proposed as possible REE...resources. Other types of hard-rock REE deposits in the USA include small iron-REE deposits in Missouri and New |  | Wu, Chengyu, Bai, Ge, Yuan, Zhongxin, Nakajima, Terumasa, Ishihara, Shunso (1993) Proterozoic Metamorphic Rock-Hosted ZR, Y, and HREE Mineralization in the Dabie Mountain Area, Central China. International Geology Review, 35 (10) 898-919 doi:10.1080/00206819309465564 | Journal (article/letter/editorial) | | metamorphism of 360-440 °C. Accessory minerals include zircon, gadolinite, fergusonite, xenotime, monazite, allanite...x e n o t i m e , f e r g u s o n i t e , a n d zircon in felsic 0020-6814/93/10/898-22 $10.00 schists...the Guangshui and Huangmailing districts, Dawu County, Hubei Province, are presented. Their genetic implications...matites of the late Archean Dabie Group (2431 Ma, zircon U-Pb (Tao et al., 1986); 2313 Ma, Rb-Sr whole-rock...the late Proterozoic Hongan Group (937-950 Ma, zircon Pb-Pb isochron (Tao et al., 1986); 744 Ma, Rb-Sr |  | | Report (issue) | | Cover. The Mountain Pass Mine, San Bernardino County, California, was the only active producer of rare-earth...the Mountain Pass Mine in San Bernardino County, California, which was the only active producer of rare-earth...bodies mined at the Mountain Pass deposit in California and, in China, at the Bayan Obo deposit in Nei...Inc.âs Mountain Pass Mine in San Bernardino County, California. Mine production at Mountain Pass began in...depositsâthe carbonatite deposit at Mountain Pass in California (fig. O3) and the iron-carbonatite deposits of |  | | Journal (article/letter/editorial) | | Fe-Co-Cu-Au-Bi-Y-REE deposits of the Idaho cobalt belt in Lemhi County, east-central Idaho. The focus is on the Blackbird...more recent formational assignment. U-Pb detrital zircon data for the Apple Creek Formation obtained by...REEs (Schulz, 2012), and a range of SHRIMP U-Pb zircon ages from 1383 ± 4 to 1359 ± 7 Ma; zircons from...sills, including coarse diabase having a TIMS U-Pb zircon age of 1378.7 ± 1.2 Ma (Doughty and Chamberlain...during the period ~1463 to 1064 Ma, based on U-Pb zircon and monazite and Lu-Hf garnet geochronology (Doughty |  | | Report (issue) | | MINERALS OF CALIFORNIA THE GOLDEN BEAR The Golden Bear Nugget of Yankee is NUGGET said to have...found in the mining the nugget Jim, Placer County, California, in 1871 by a small girl in who town kept...are nuggets. The nugget was acquired by the California Federation of Minerologicol Societies insignia...in in the Cali- San Francisco MINERALS OF CALIFORNIA CENTENNIAL VOLUME by JOSEPH (1866-1966) MURDOCH...Ian Campbell and Eleanor M. Learned BULLETIN California Division of Ferry Building, San 189 Mines |  | | Journal (article/letter/editorial) | | mineralization mechanisms in Proterozoic gneiss, Music Valley, CaliforniaâS. Tyson McKinney, John M. Cottle, and...Anhui Province, southeast China: Evidence from zircon U-Pb and molybdenite Re-Os and sulfur isotope dataâ...pegmatite, Altai, NW China: Evidence from U-Pb zircon and 40Ar-39Ar muscovite agesâQifeng Zhou, Kezhang |  | | Book | | MINERALS OF CALIFORNlA 299" 257889 PEMBERTON' HOFE CALIFORNIA MINERALS 2995 SEP 1933 OINCO Digitized by...org/details/mineralsofcalifo00pemb MINERALS OF CALIFORNIA - MINERALS OF CALIFORNIA H. Earl Pemberton ~ VAN NOSTRAND...H. Earl, 1907Minerals of California. An updating of: Minerals of California: centennial volume, 1866-1966...index. 1. Mineralogy - California. 2. Mines and mineral resources - California. I. MUidoch, J oseph, 1890Minerals...1890Minerals of California. 11. Title. QE375.C32P45 549.9794 81-15963 ISBN 0-442-274882 AACR2 Preface |  | | Journal (article/letter/editorial) | | of Earth Science, University of California, Santa Barbara, California 93106-9630, CR 1 IP T John...M. Cottle1*, Kyle P. Larson2, Chris Yakymchuk3 USA ED Kelowna, BC V1V 1V7, Canada 3 AN Earth and...the medium-grained CR leucogranite, contains zircon, monazite and xenotime that each display near-identical...thermochronologic data indicate that the range of zircon, monazite and xenotime dates recorded in the pegmatite...early leucogranite emplacement temporarily delayed zircon and monazite and xenotime crystallization, respectively |  | Andersson, Stefan S., Wagner, Thomas, Jonsson, Erik, Fusswinkel, Tobias, Leijd, Magnus, Berg, Johan T. (2018) Origin of the high-temperature Olserum-Djupedal REE-phosphate mineralisation, SE Sweden: A unique contact metamorphic-hydrothermal system. Ore Geology Reviews, 101. 740-764 doi:10.1016/j.oregeorev.2018.08.018 | Journal (article/letter/editorial) | | reclassification of the granitoids, combined with new zircon U-Pb geochronology. According to this, the first...1992). Interestingly, minor amounts of apatite and âzirconâ were found within these ores already in the 1960âs...potentially misidentifying the abundant xenotime-(Y) as âzirconâ. 2.2.2. U ± REE mineralisations: types and proposed...biotite, muscovite, magnetite, ilmenite, rutile, zircon and minor monazite and U-bearing phases. GrĂ€nsö...associated with locally abundant monazite-(Ce) and zircon, and subordinate ilmenite, rutile, xenotime-(Y) | | | Book | | 7 257989 R q549 PEMBERTON, H.E MINERALS OF CALIFORNIA P 2995 IpSl q 49 f 07. 257889 ^ pe B T...org/details/mineralsofcalifoOOpemb MINERALS OF CALIFORNIA MINERALS OF CALIFORNIA H. Earl r i L ] Pemberton ...H. Earl, 1907Minerals of California. An updating of: Minerals of California: 1866-1966 / by Joseph Murdoch...Includes index. 1. Mineralogy -California. 2. Mines and mineral resources- California. I. Murdoch, Joseph, 1890Minerals...1890Minerals of California. II. Title. centennial volume, QE375.C32P45 ISBN 0-442-27488 2 549.9794 |  | | Journal (article/letter/editorial) | | incompatible trace element distribution pattern, positive zircon ï„Hf(t) (+3.2 to +9.7), initial whole rock ratio...shear zone near Barpung; c) metabasics of Dizo Valley (92°57âČ24âłE; 24°24âČ17âłN); d) the Kaliyani river...the chondritic reservoir (CHUR) at the time of zircon growth from magmas. Depleted mantle model ages...spectrometry setup at the University of California, Santa Barbara, USA. The laboratory contains a Nu Plasma...of 4 Hz and laser fluency of ~1 J/cm2. The 91500 zircon (Wiedenbeck, 1995) was used as the primary reference |  | Bate Tibang, E. E., Suh, C. E., Cottle, J., Ateh, K. I., Tiabou, A. F., Nche, L. A., Che, V. B., Vishiti, A. (2017) Petrology and geochronology of felsic volcanics in the Sabga area (Bamenda Highlands): implications for age variation along the Cameroon Volcanic Line. Journal of GEOsciences, 62 (4) 231-246 | Journal (article/letter/editorial) | | Webb Hall 2028, University of California, Santa Barbara, CA 93106-9630, USA Remote Sensing Unit, Department...mafic and rhyodacitic lava flows were dated by zircon LA-ICP-MS technique in order to constrain the timescales...Keywords: Cameroon Volcanic Line, Bamenda Highlands, zircon dating, flow banding, rhyolitic ignimbrite, rhyolitic...Barker et al. 2014) such as the Bishop Tuff in California (Wilson and Hildreth 1997) and the Taupo Volcano...successive eruptive layers. Here we present a suite of zircon age determinations from two stratigraphic horizons |  | Moyle, W.R., Martin, Peter, Schluter, R.C., Woolfenden, L.R., Downing, Karen, Elliott, A.L., Maltby, D.E. (1986) Southern California Alluvial Basins Regional Aquifer-Systems analysis; a bibliography. Open-File Report Vol. 1986 (85-695) US Geological Survey doi:10.3133/ofr85695 | Report (issue) | | SOUTHERN CALIFORNIA ALLUVIAL BASINS REGIONAL AQUIFER-SYSTEMS ANALYSIS: A BIBLIOGRAPHY By W. R. Moyle...Open-File Report 85-695 ro ro I Sacramento, California 1986 UNITED STATES DEPARTMENT OF THE INTERIOR...Survey 2800 Cottage Way, Room W-2234 Sacramento, California 95825 Open-File Services Section Western Distribution...-------Southern California and offshore-------------------------Arizona, California, Mexico, and Nev...gory 5: Southern California and offshore------------Category 6: Arizona, California, Mexico, and Nevada------ |  | | Report (volume) | | VIMSa. Moscow, U.S.S.R. California Div. Mines and Geology BulL-State of California Department of Natural...Francisco, Calif. California Div. Mines and Geology Mineral lnf. Ser.-State of California. Department of...Francisco, Calif. California Div. Mines and Geology Spec. Rept.-State of California Department of Natural...Special Report. San Francisco, Calif. California Div. Mines BulL-California Department of Natural Resources...Bulletin. San Francisco, Calif. California Div. Mines Spec. Rept.-California Department of Natural Resources |  | Babazadeh, Shahrouz, Ghorbani, Mohammad Reza, Bröcker, Michael, DâAntonio, Massimo, Cottle, John, Gebbing, Thorsten, Carmine Mazzeo, Fabio, Ahmadi, Parham (2017) Late OligoceneâMiocene mantle upwelling and interaction inferred from mantle signatures in gabbroic to granitic rocks from the UrumiehâDokhtar arc, south Ardestan, Iran. International Geology Review, 59 (12) 1590-1608 doi:10.1080/00206814.2017.1286613 | Journal (article/letter/editorial) | | Department of Earth Science, University of California, Santa Barbara, CA, USA ABSTRACT ARTICLE HISTORY The south...plasma mass spectrometry (LA-ICP-MS) dating of zircon three granodiorites yielded ages of 24.6 ± 0.1...UrumiehâDokhtar magmatic arc; plutonic rocks; UâPb zircon ages; RbâSr biotite ages; late OligoceneâMiocene;... and isochron diagrams are shown in Figure 10. Zircon separates were prepared for three samples (ZF72...separation techniques at the Geological Survey of Iran. Zircon U/Pb geochronology and trace element data were |  | | Report (issue) | | combined with yttriumaluminum-garnet. Researchers in California have experimented with a rare-earth laser in...which may be composed of fluorides of lanthanum, zircon, barium, aluminum, sodium, and hafnium, is formed...mostly of the lighter elements, and is mined in California and China as a primary ore. Monazite and xenotime...four elements averages 10.6. Xenotime .... RP04 Zircon ....... (Zr,Th,R)Si04 contains all light rare-earth...with and related to alkaline intrusives (as in California), in quartz veins that cut micaceous schists |  | Johnson, Thomas A., Vervoort, Jeffrey D., Ramsey, Molly J., Southworth, Scott, Mulcahy, Sean R. (2020) Tectonic evolution of the Grenville Orogen in the central Appalachians. Precambrian Research, 346. 105740pp. doi:10.1016/j.precamres.2020.105740 | Journal (article/letter/editorial) | | University, Pullman, WA 99164, USA U.S. Geological Survey, Reston, VA 20192, USA Geology Department, Western...Western Washington University, Bellingham, WA 98225, USA ARTICLE INFO ABSTRACT Keywords: Grenville Orogeny...Science, University of California- Santa Barbara, Santa Barbara, California 93106, USA. â https://doi.org/10...emplaced (e.g., Burton and Southworth, 1993), detrital zircon studies (U-Pb SHRIMP) suggest that the protoliths...between 1170 and 1080 Ma, the majority of U-Pb SHRIMP zircon overgrowth ages from the Virginia Blue Ridge fall |  | Andersson, Stefan S., Wagner, Thomas, Jonsson, Erik, Michallik, Radoslaw M. (2018) Mineralogy, paragenesis, and mineral chemistry of REEs in the Olserum-Djupedal REE-phosphate mineralization, SE Sweden. American Mineralogist, 103 (1) 125-142 doi:10.2138/am-2018-6202 | Journal (article/letter/editorial) | | 2013) or the monazite-xenotime mineralization in Music Valley, U.S.A. (McKinney et al. 2015). Thus, studies...classification of the VĂ€stervik granitoids, followed by new zircon U-Pb age determinations (Kleinhanns et al. 2015)...ilmenite, rutile, niobian rutile, fluorapatite, zircon, and sulfides. Since BMS-hosted monazite-(Ce) and...granitoids in Fennoscandia from Hf isotopes in zircon. Journal of the Geological Society, London, 166...Ridge Fe-oxide-REE deposit, southeast Missouri, USA. Economic Geology, 111, 1963â1984. Heinrich, W., |  | | Journal (article/letter/editorial) | | Science, University of California, Santa Barbara, Santa Barbara, CA, 93106-9630, USA 2 National Minerals...University of British Columbia Okanagan, 3247 ro 3 of USA re * corresponding author: cottle@geol.ucsb.edu...tracer isotopes (e.g., Sm/Nd in monazite, Lu/Hf in zircon). It is therefore necessary to employ an alternative...as small as -p ~10 microns in minerals such as zircon (Hf isotopes, e.g., (Griffin et al., 2000), monazite...dikes and near the margins (Le Fort, of 1981). Zircon, monazite, apatite, and xenotime occur as accessory |  | | Journal (article/letter/editorial) | | Earth Science, University of California, Santa Barbara, California, 93106, USA Corresponding author: email:...hinterland and foreland exposures, in the upper Karnali valley and around Jumla, respectively. In situ U-Th/Pb...metamorphic reactions. Rocks in the upper TE Karnali valley record deformation associated with metamorphism...structural positions in the hinterland in upper Karnali valley were still being actively deformed and melting...hinterland-most hanging-wall rocks (upper Karnali valley) were still undergoing ductile deformation and |  | | Journal (article/letter/editorial) | | Earth Science, University of California, Santa Barbara, California 931069630, USA Abstract Sapphirineâquartz... metamorphism. Phase equilibrium modelling and zircon petrochronology are used to quantify timing and...with ultrahigh temperature conditions. Neoblastic zircon records ages of c. 1.0â0.9 Ga that are interpreted...ultrahigh temperature metamorphism. Th/U ratios of zircon of up to 100 reflect U-depleted whole-rock compositions...Concentrations of heavy rare earth elements in zircon do not show systematic trends with UâPb age but |  | | Journal (article/letter/editorial) | | Accepted Manuscript Zircon U-Pb and Hf isotopes link the Gondwana arc record of West Antarctica, Australia...cite this article as: D.A. Nelson, J.M. Cottle , Zircon U-Pb and Hf isotopes link the Gondwana arc record...Confidential manuscript submitted to Gondwana Research Zircon U-Pb and Hf isotopes link the Gondwana arc record...Science, University of California, Santa Barbara, California 93106â 9630, USA AC CE PT ED M AN...Nelson (demian@umail.ucsb.edu) Nelson & Cottle Zircon U-Pb and Hf history of the Gondwana margin Page |  | | Journal (article/letter/editorial) | | generally <3 kt REO/year. 80 60 China 40 20 USA 0 1950 1960 1970 1980 1990 2000 2010 Fig. 1. Historical...AraxĂĄ, Brazil; Karonge, Burundi; â Mountain Pass, USA; Nolans Bore, Australia; â Steenkampskraal, South...Norra KĂ€rr, Sweden; â alkaline pegmatites â Bokan, USA; Thor Lake, Canada; Kipawa Lake, â Canada; Kola...saturated to oversaturated Felsic volcanic Round Top, USA; Foxtrot, Canada Granites and Khibina Massif, Russia;...Creek, Australia; India; Sri Lanka; Florida, â USA Undifferentiated Korella, Australia 1 Adapted from |  | | Book | | apatite, fluorite, titanite, uraninite, vesuvianite, zircon etc, which theoretically are not REE minerals,...fractures in altered greenstones from San Benito County, California, is reported with 20.57 wt.% RE2 0 3 , being...to actinides, occurs frequently in minerals like zircon and xenotime. REE can also be present in actinide...% U0 2 and 11 wt.% Th0 2 âą Zirconium. Although zircon is not, generally speaking, an REE mineral, many...(Sweden) and the Mountain Pass carbonatites (California), is frequently altered into parisite and bastnaesite |
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