 | | Report (issue) | | Mineral Deposits of the Mountain Pass District San Bernardino County California GEOLOGICAL SURVEY PROFESSIONAL...Mineral Deposits of the Mountain Pass District San Bernardino County California By J. C. OLSON, D. R. SHAWE...foreword on History of the Discovery at Mountain Pass, California By D. F. HEWETT GEOLOGICAL SURVEY PROFESSIONAL...PROFESSIONAL PAPER 261 A geologic study of the district and its rare-earth-bear ing carbonate rocks. One...AT MOUNTAIN PASS, CALIFORNIA By D. F. HEWETT The region near Mountain Pass, San Bernardino County, Calif |  | WANG, Denghong, YANG, Jianmin, YAN, Shenghao, XU, Jue, CHEN, Yuchuan, PU, Guangping, LUO, Yaonan (2001) A Special Orogenic-type Rare Earth Element Deposit in Maoniuping, Sichuan, China: Geology and Geochemistry. Resource Geology, 51 (3) 177-188 doi:10.1111/j.1751-3928.2001.tb00090.x | Journal (article/letter/editorial) | | The Maoniuping REE deposit is similar to the Mountain Pass REE deposit in many respects such as the high...that the mineralizations were derived from the aegirine alkalic granites of mantle origin, instead of...in 1984, is located in Senrong village, Mianning County, Sichuan Province. This is the second largest light...Chengdu, Sichuan 610081, China Keywords: Maoniuping mine, REE deposit, Cenozoic, intracontinental orogeny...geological map showing the location of the Maoniuping district evolved in the late stage of the (modified after |  | | Report (issue) | | East Mojave National Scenic Area, San Bernardino County, California by U.S. Geological Survey 1991 Open-File................................. 2 1 Van Winkle Mountain and vicinity....................................Hackberry Mountain, Woods Mountains, and Wild Horse Mesa................... 2 3 Piute Range, Castle Mountains.................... 3 3 Lanfair Valley and Piute Range...................................................Dad Mountain and Kelso Mountains............................................... 3 7 Clark Mountain Range |  | | Book (edition) | | now the major sources of RE elements (Mountain Pass, California) and of Nb (Oka, Quebec and Araxa, Brazil)...localities as inclusions in the limestone”’ (italics mine). Actually, the first published description of...field work on the Iron Hill complex of Gunnison County, Colorado, in 1912-1913. Although his final results...carbonatite dikes cutting the kimberlite of the Premier mine (p. 542) he classed as magmatic, but 1 Bowen admitted... Colorado (Olson and Wallace, 1956), Mountain Pass, California (Olson et al., 1954), southwestern Montana |  | | Journal (article/letter/editorial) | | wt RE2O3) and 1 Mt Nb (0.13% Nb). The Bayan Obo Mine produced 55,300 tons of RE2O3 in 2005, accounting...associated apatite, fluorite, barite, albite, aegirine, aegirine– augite and phlogopite alteration assemblages...associated fenitic alteration in the Bayan Obo ore district (Le Bas et al., 1992; Yang et al., 2000) suggests...carbonatitic nature. In comparison with the Mountain Pass carbonatite bastnasite deposit, the latter is...Ca-carbonatite, and an extremely high value of 3900 for Mountain Pass carbonatite (Haxel, 2005). The (La/Yb)cn ratios |  | | Book | | are an increasingly important source of a wide range of industrial raw materials, which has stimulated...only an approximate coordinate can be given. A range of coordinates is quoted for particularly large...has not always prov ed possible because of th e range of rock types involved, and because of th e d ifficulties...owing clearly small areas, for which only a limited range of tints are suitable. Locality index This lists...Verlag, Berlin. 252 pp. DEANS, T. 1966. Economic mine ralogy of African carbonatites. 111 O . F. Tuttle |  | | Report (issue) | | »,*,,..».,.. .,.,37 Structural features of the district ««*.*«****, «r«,****.***»*,?5 Faalts ,,.,.,.,...origin ,« with other areas Bibliography Plata 1* Clark Jfcuntaiii and Sulphide C^ieen sill from ayerdte...^ourrt&in Pass district -.10 3. //*»' « Generalised pro-Caisbrlaa geology, ^nntain ia district, , »......Pocket 4. Geologic mp of the leu&t&in ?aai» district »»».»... ..,* Pocket Roiuaded outcrops of gyerdts...Grasit© cf linaral Hill, fros west 6*, ilcuctain Pass district, aho^isg- distrlbotlcn o^ veins and carbonate |  | | Journal (article/letter/editorial) | | crystallizedunder a high-temperatureenvironment. The Gallinas Mountain (New Mexico) bastnacsitedeposits,however, occur...Permian strata that were locally arched. In Lincoln County this archingwas accompanied by Late Cretaceous...northernmostof thesedomaluplifts,are in northernLincoln County,about40 milesnorthof Carrizozo. The rangecoversabout50...14% K20 + Na20), the presence of riebeckite,aegirine-augite, titaniferousaegirine,extremelysodic plagiodase...minesor prospects were workedor developedin the district; four were for copper,five for iron, and the remainingtwentywere |  | | Report (issue) | | placers of Idaho, veins and pipes in the Bokan Mountain district of Alaska, carbonatite dikes, and apatite-bearing...apatite-bearing iron deposits in the Mineville district of New York in the United States. 1980 CIRCULAR 824............ . Veins and Pipes in the Bokan Mountain District, Alaska ........................................ . Powderhorn District, Colorado ................. . Mountain Pass, California ....................Montana ................. . Ravalli County, Montan81- Lemhi County, Idaho .. Magnet Cove and Potash Sulfur |  | | Book | | flowsheet of glass grade nephelinesyenite at Blue Mountain, Ontario page 73 Figure 8 Phonolite Germany...beneficiation. This processing is carried out at the mine where the rock is crushed, dried and passed through...rocks, i.e. phonolites, show a wide compositional range with either more sodium or considerably more potassium...pyroxenes rich in the aegirine (or acmite) molecule, NaFeSi,Og, and the various pyroxenes range in composition...composition from diopside, CaMgSi,Og, through aegirine-augite to aegirine. Small needles of sodic pyroxene are |  | | Report (issue) | | AND Y-REE-ZR-NB-ENRICHED VEIN DIKES OF THE BOKAN MOUNTAIN STOCK, PRINCE OF WALES ISLAND, SOUTHEASTERN ALASKA...AND Y-REE-ZR-NB-ENRICHED VEIN DIKES OF THE BOKAN MOUNTAIN STOCK, PRINCE OF WALES ISLAND, SOUTHEASTERN ALASKA...transect southeast from the margin of the Bokan Mountain peralkaline granite stock along a Y-REE-Zr-Nb-enriched...zirconium-, and niobiumbearing phases. Textures range from primary igneous assemblages, through autometasomatic...to late-stage fracture fillings of hydrothermal aegirine, zircon, iron oxide, iron hydroxide, and clay |  | Doroshkevich, A. G., Viladkar, S. G., Ripp, G. S., Burtseva, M. V. (2009) HYDROTHERMAL REE MINERALIZATION IN THE AMBA DONGAR CARBONATITE COMPLEX, GUJARAT, INDIA. The Canadian Mineralogist, 47 (5) 1105-1116 doi:10.3749/canmin.47.5.1105 | Journal (article/letter/editorial) | | sövite samples are calcite, apatite-(CaF), aegirine-augite, aegirine, magnetite, pyrochlore, phlogopite, zircon...rutile are minor minerals. The pyroxene is aegirine-augite, as in the sodic fenites, and forms idiomorphic...where yttrium has not been observed: Mountain Pass, California, U.S.A. (Olson et al. 1954, Castor 2008)...(2008): The Mountain Pass rare-earth carbonatite and associated ultrapotassic rocks, California. Can. Mineral...mineral deposits of the Mountain Pass district, San Bernardino County, California. U.S. Geol. Surv., Prof |  | | Journal (article/letter/editorial) | | onlyduringthelast35 years(Deans,1966;Kapustin, Mountain Pass district, California; Oka, Quebec, 1980) andmanyother...remainto be dis- Canada;Iron Hill, Powderhorn district, Colorado;and covered. GemPark,Colorado(Fig. 1)...carbonatitesamplelocalities.MP -- MountainPassdistrict,California; al., 1973). The first overtoneof the OH-stretching...near 1.4 •m. Similarly, the HOH-bending vibration district,Colorado;O -- Oka Carbonatite,Quebec,Canada. mode...Analytical Procedures IH = Iron Hill, Powderhorn district, Colorado; GP = Gem Park 1984). Manyrock-forming |  | | Report (issue) | | fjil* STATE OF CALIFORNIA DEPARTMENT OF NATURAL RESOURCES GEOLOGY OF SOUTHERN CALIFORNIA BULLETIN 170...170 1954 DIVISION OF MINES FERRY BUILDING, SAN FRANCISCO LIBRARY UNIVERSITY OF CALJFORNIA DAVIS DEPARTMENT...DIVISION OF MINES Son Francisco STATE OF CALIFORNIA GOODWIN San Francisco J. Ferry Building, KNIGHT...OlAF 170 September 1954 GEOLOGY OF SOUTHERN CALIFORNIA RICHARD Edited by H. JAHNS CONTRIBUTING AUTHORS...transmit herewith nulletin 170, Geoloejy of Southern California, prepared nnder the direction of Olaf P. Jenkins |  | Rowan, Lawrence C., Bowers, Timothy L., Crowley, James K., Anton-Pacheco, Carmen, Gumiel, Pablo, Kingston, Marguerite J. (1995) Analysis of airborne visible-infrared imaging spectrometer (AVIRIS) data of the Iron Hill, Colorado, carbonatite-alkalic igneous complex. Economic Geology, 90 (7) 1966-1982 doi:10.2113/gsecongeo.90.7.1966 | Journal (article/letter/editorial) | | andijolite)wasmappedusinga fullAVIRISwavelength range(0.40-2.45/•m)imagespectrum of pyroxenite, excluding...narrow, approximately 31 km2 in thePowderhorn district, whichis clearskyconditions. located in southwestern...Generalized geologic mapoftheIronHill Powderhorn district, Colorado, study area(modified fromOlson, 1974;HedlundandOlson...Ijolite:Ijoliteconsists mainlyof nepheline, aegirine-augite, 1970 ROWAN ET AL. S6vite 42 Rauhaugite...with uncompah- by lenticularaggregates of aegirine-augite, perthiticmicrowithferric-iron oxideinclusions |  | | Report (issue) | | 10 12 13 1 . Asbestos ore 2. Lead ore, Balmat mine, N. Y. 3. Chromite-chromium ore, Washington 4....................... ............... 11. Sheep Mountain ....................................................... 12. Geologic map and section of Sheep Mountain ....................................... ........Lodge Mountains are a small northerly trending range approximately 16 km northwest of the Black Hills...relationship between faulting and intrusion is on Sheep Mountain, where several curved faults outline the approximate |  | | Report (chapter) | | http://sp.lyellcollection.org/ at University of California-Davis on May 7, 2014 Geological Society, London...http://sp.lyellcollection.org/ at University of California-Davis on May 7, 2014 Nephelinites and carbonatites...http://sp.lyellcollection.org/ at University of California-Davis on May 7, 2014 54 M. J. Le Bas ((Na...http://sp.lyellcollection.org/ at University of California-Davis on May 7, 2014 Nephelinites and carbonatites...http://sp.lyellcollection.org/ at University of California-Davis on May 7, 2014 56 M. J. Le Bas 134o + |  | | Book (edition) | | Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...Hey 4.C Oxides with M: 0 =2:3, 3:5, etc. 0955). Clark (1993). and Blackbum and Dennen 4.D Oxides with...abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....always included in text, except in the cases of the USA, UK, and the provinces Ontario and Quebec in Canada |  | | Journal (article/letter/editorial) | | in China [2] but there are other examples: Mountain Pass, USA (REO ≥ 29 Mt; RE2 O3 ~8.9%; REO = total rare...world supply of REEs, with the USA only producing REEs from 2012–2015. The USA production came entirely from...from the Mountain Pass mine (California), which provided ~4% of the world’s REE supply [5]. A wide variety...similar features (Table 1). Other CARDs include Mountain Pass [3], Oka [4], Canada, and Mt. Weld in Australia...is 18 km southeast of Zaozhuang City in Weishan County, Shandong Province, within the Luxi tectonic block |  | Trofanenko, J., Williams-Jones, A. E., Simandl, G. J., Migdisov, A. A. (2016) The Nature and Origin of the REE Mineralization in the Wicheeda Carbonatite, British Columbia, Canada. Economic Geology, 111 (1) 199-223 doi:10.2113/econgeo.111.1.199 | Journal (article/letter/editorial) | | concentrations of these metals. Examples include Mountain Pass (Castor, 2008), Maoniuping (Xu et al., 2003...(Moore et al., 2015). In rare cases, such as the Mountain Pass deposit, textural relationships indicate that...subsequent periods of extension. The NW-trending Rocky Mountain Trench, which follows the Parsnip River valley...Abbreviation Formula Silicates Aegirine Aeg NaFe3+Si2O6 Aegirine-augite Agt (Ca, Na)(Mg, Fe2+, Fe3+)Si2O6...minor biotite (5 vol %), albite (5 vol %), aegirine-augite (2 vol %), pyrite (2 vol %), and pyrochlore |  | Wang, Zhen-Yu, Fan, Hong-Rui, Zhou, Lingli, Yang, Kui-Feng, She, Hai-Dong (2020) Carbonatite-Related REE Deposits: An Overview. Minerals, 10 (11) 965 doi:10.3390/min10110965 | Journal (article/letter/editorial) | | driven particularly by their application in a range of modern and green technologies, including electric...(REE) Mrro do Ferro (Th-REE) Mount Weld (REE) Mountain Pass (REE) Tomtor (REE) Lovozero (REE-Nb) Amba Dongar...Maoniuping REE deposit in Sichuan, Mountain Pass REE deposit in the USA and Araxá Nb-P-REE deposit in Brazil...(Figureor irregular 1) [26,27]. The of carbonatites range from the Archean to Cenozoic. faults existing in...seated and fertile magma [17]. For example, the Mountain Pass REE deposit, United States, is controlled by |  | Smith, M.P., Moore, K., Kavecsánszki, D., Finch, A.A., Kynicky, J., Wall, F. (2016) From mantle to critical zone: A review of large and giant sized deposits of the rare earth elements. Geoscience Frontiers, 7 (3) 315-334 doi:10.1016/j.gsf.2015.12.006 | Journal (article/letter/editorial) | | giant (>1.7×107 tonnes contained SC metal), but a range of others classify as large (>1.7×106 tonnes). With...fundamental to a range of low carbon energy production approaches, and in a wide range of high technology...of large deposits (e.g. Bayan Obo, China; Mountain Pass, USA; Mount Weld, Australia; Lovozero, Russia)...Na2O+K2O>Al2O3) and as such may contain sodic pyroxene (e.g. aegirine) and amphibole (arfvedsonite and riebeckite)....host dolomite marble to fluorite, apatite, aegirine-augite, riebeckite, arfvedsonite amphibole and barite |  | | Report (issue) | | Description of localities ____________ Nevada and California, by E. N. Cameron and L. A. Warner__ _________________... Nevada ___________ Elko County. - ______ ... _ Star mine, Harrison Pass _____ ____ Pag« 59 61 61 63...63 Good Hope barite mine, Tuscarora Range _____ _ ._. ________ Humboldt County Golconda manganese-tungsten...County__-__--__----__-.___-_-__ Barite deposits, Battle Mountain area.. California-Nevada Barite Co. 63 64 64 64 64 65...Ltd., mine...... --_--______.______ Lincoln County__-__-----_-----_-----___ Tern Piute district...... |  | | Journal (issue) | | Proterozoic diorite in the Lemitar Mountains, Socorro County, New Mexico. The carbonatite has been dated by...mined from large carbonatite plutons at Mountain Pass, California and Bayan Obo, Inner Mongolia, China....Thorium Th ThO2 syenite are known at Pajarito Mountain on the Mescalero Apache Indian Reservation 1.351...operations, and to prorequire special handling of the mine waste. Future development vide for a sustainable...na—not available. deposits that are economical to mine and only a few deposits in the world account for |  | Elliott, H.A.L., Wall, F., Chakhmouradian, A.R., Siegfried, P.R., Dahlgren, S., Weatherley, S., Finch, A.A., Marks, M.A.W., Dowman, E., Deady, E. (2018) Fenites associated with carbonatite complexes: A review. Ore Geology Reviews, 93. 38-59 doi:10.1016/j.oregeorev.2017.12.003 | Journal (article/letter/editorial) | | Wall, 81 2014), making them useful in a wide range of industrial processes. 82 The vast majority...and mineralogi- 133 cal modifiers e.g. veined aegirine-albite fenite; brecciated orthoclase fenite. Here...biotite and hornblende to an 213 albite and aegirine-rich fenite near the contact. The stages involved...complexity of the process is reflected in the diverse range of 219 nomenclature used in the literature. 220...Chilwa Island, 341 Malawi (Woolley, 1969); Homa Mountain, Kenya (Clarke and Roberts, 1986); Dicker 15 |
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