 | | Report (issue) | | Accompany Geologic Map of the Mountain Pass District, San Bernardino County, California by Jerry C. 01 son Open-file...Accompany Geologic Map of the Mountain Pass District, San Bernardino County, California by J.C. 01 son The geology...geology of the Mountain Pass district, San Bernardino County, California, has been mapped by the U.S. Geological...investigations of the rare-earth mineral deposits of the district. The rare-earth minerals have been found within...mineral deposits were discovered in the Mountain Pass district in 1949 by H.E. Woodward and Clarence Watkins |  | | Report (issue) | | Field Guide to Mountain Pass, California and the Searchlight District, Nevada by G. Nason, G. B. Haxel...will visit the Molycorp Mountain Pass Mine and surrounding region of California followed by a tour of the...the Searchlight District of Nevada. We wish to acknowledge the management of Molycorp for permission...to visit the mine and processing facilities and to thank Geoff Nason for leading the mine tour. We also...fascinating geology in the area surrounding the Mountain Pass Mine, and for coordinating important aspects of |  | | 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 |  | | Journal (article/letter/editorial) | | Exploration in North America The Mountain Pass deposit, California Anthony N. Mariano1 and Anthony Mariano...in mineralogy and geology. The Mountain Pass carbonatite in California historically has been a major world...for HREEs but have rock past producer, Mountain Pass in California, is average total REE (ΣREE) grades running...to be attractive targets by Mountain Pass mine in California. Mountain Pass was for companies and investors...~1 wt% 1 48 Page Brook Road, Carlisle, MA 01741, USA E-mail: reomariano@aol.com to as high as 27 wt%. |  | | 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 |  | | Journal (article/letter/editorial) | | 779 THE MOUNTAIN PASS RARE-EARTH CARBONATITE AND ASSOCIATED ULTRAPOTASSIC ROCKS, CALIFORNIA Stephen B...which contains the rare-earth orebody at Mountain Pass in California, is a moderately dipping tabular intrusion...abundant carbonatite and alkaline dikes. The Mountain Pass carbonatite and alkaline rocks lie in a narrow...mineralogically unusual. The mafic members of the Mountain Pass alkaline rock suite belong to the ultrapotassic...rocks, enriched mantle, Sulphide Queen, Mountain Pass, California. Sommaire La carbonatite de Sulphide |  | | Report (issue) | | 061(7) Z=6 X-ray Powder Pattern: Mountain Pass, California, USA. 2.95 (100), 1.954 (50), 3.47 (42)...16 2.72 0.17 0.14 0.07 [100.00] (1) Mountain Pass, California, USA; recalculated to 100% after deduction...quartz-barite-carbonatite veins in shonkinite (Mountain Pass, California, USA). Association: Bastnäsite, allanite...Bastnäs mine, Riddarhyttan, Västmanland. In the USA, from the Mountain Pass district, San Bernardino Co...., California, and in Colorado, at Jamestown, Boulder Co. In Canada, from Papineau Co., and Mont Saint-Hilaire |  | | Journal (article/letter/editorial) | | Mapping Capability of WorldView 3 Data at Mountain Pass, California, Using True- and False-Color Composite...and short-wave infrared (SWIR) data of Mountain Pass, California, were calibrated to reflectance and used...rocks in the Sulphide Queen rare earth element (REE) mine pit but were unable to map neodymium-rich rocks...the polymetallic (gold and silver) Morning Star mine, which supports previous studies that suggest Fe-bearing...earth elements (REEs), such as neodymium (Fig. 1; Clark et al., 1993). In the SWIR region, resampled WV3 |  | | 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 |  | | Report (volume) | | McCullough Mountains Wilderness Study Area, Clark County, Nevada U.S. GEOLOGICAL SURVEY BULLETIN 1730-C...McCullough Mountains Wilderness Study Area, Clark County, Nevada By ED DE WITT, J. L ANDERSON, H. N....McCullough Mountains Wilderness Study Area, Clark County, Nevada. (Mineral resources of wilderness study...Mountains Wilderness Study Area (NV-050-435), Clark County, Nevada. CONTENTS Abstract Cl Summary Cl...McCullough Mountains Wilderness Study Area, Clark County, Nevada Ey Ed DeWitt, J.L Anderson, H.N. Barton |  | Glass, J. J., Evans, H. T., Carron, M. K., Hildebrand, F. A. (1958) Cerite from Mountain Pass, San Bernardino County, California. American Mineralogist, 43 (5-6) 460-475 | Journal (article/letter/editorial) | | MAY-JUNE, 1958 CERITE FROM MOUNTAIN PASS, SAN BERNARDINO COUNTY, CALIFORNIA* Jnwor,r J. Gress, Howenn...the rareearth-bearing veins of the Mountain Pass district, California. The deposits of rare-earth minerals...minerals are in a mineralized zone in shonkinite in an area of Precambrian metamorphic rocks. The minerals...crystals. The crystals are pseudo-octahedral and range in size from 2 to 7 mm. The mineral has a resinous...rare*earth-bearing veins of the Mountain Pass district, San Bernardino County, California. This occurrence is the |  | | Report (volume) | | Powderhorn districts of Colorado and the Lemhi Pass district of Idaho. It also occurs along with bastnaesite...bastnaesite in similar deposits in the Mountain Pass district of California. Bastnaesite was a mineralogic curiosity...bastnaesite-barite deposit was discovered at M9untain Pass, Calif., and production began from a bastnaesite-fluorite...of the Climax molybdenum deposit of the Tenmile district, Colo. (Carlson and others, 1953, p. 11). Potential...Monazite deposits in calcareous rocks, northern Lemhi County, Idaho: Idaho Bur. Mines and Geology Pamph. 99 |  | | Journal (article/letter/editorial) | | IN MARIN COUNTY, CALIFORNIA Charles W. Chesterman Calif. Division of Mines, Ferry Bldg., San Francisco...occurrence of nephrite in northern California is in Marin County where it forms veins and lenses of variable...ANCHOR BAY, MENDOCINO COUNTY, CALIFORNIA Charles M. Gilbert University of California, Berkeley, Calif. A...(?) sandstone from Anchor Bay, Mendocino County, California, has been identified as laumontite by x-ray...RIVERSIDE COUNTY, CALIFORNIA Richard A. Hoppin Division of Geological Sciences, California Institute |  | | Journal (article/letter/editorial) | | scatteredareas: (1) Lemhi Pass, Montana-Idaho; (2) Diamond Creek, Idaho; (3) Hall Mountain, Idaho; (4) Wet Mountains...Mountains,New Mexico; (8) Gold Hill district, New Mexico; (9) Quartzite district, Arizona; (10) Cottonwood area...Utah; (12) Mountain Pass, California; and (13) Wausau, Wisconsin. Veins in these areas range in length...are all extremely rare except in the veins at Mountain Pass, which contain substantialamounts of bastnaesite...the uranothorite-uranothorianitedepositsat Bokan Mountain in southeast Alaska (MacKevett, 1963). This paper |  | | Report (volume) | | _-_-_-________ Mountain Pass district, California..-____-.-_.._______ Central district, Missouri..___..._________________________ Hansonburg district, New Mexico___________________ Kings Creek district, South Carolina.._______________..._______________ Del Rio district, Tennessee....____...-_.____.__.___ Middle Tennessee district __--__-__-_--_-_-_____...districts and deposits___________________ Mazarn basin district, Arkansas_-_-_________________ North-central ...Nevada__^____________________.____ Hailey district, Idaho. ___.____________ El Portal, California_______ |  | Miller, D. M., Miller, R.J., Nielson, J.E., Wilshire, H.G., Howard, K.A., Stone, Paul (1991) Preliminary geologic map of the East Mojave National Scenic Area, California. Open-File Report Vol. 1991 (91-435) US Geological Survey doi:10.3133/ofr91435 | Report (issue) | | map of the East Mojave National Scenic Area, California Compiled by David M. Miller, Robert J. Miller...northeastern part of the Mojave Desert of southeastern California. The Scenic Area is bounded by Interstate freeways...alluviated basins separate rugged mountain ranges, the most prominent being the Clark, Ivanpah, New York, Providence...and Soda Mountains, the Piute Range, and Old Dad Mountain and Homer Mountain. The area is further endowed...channels. Older deposits form piedmonts flanking mountain ranges and typically underlie raised, paved, and |  | | Report (issue) | | and Mineral Resources of the Ivanpah Quadrangle California and Nevada GEOLOGICAL SURVEY PROFESSIONAL PAPER...and Mineral Resources of the Ivanpah Quadrangle California and Nevada By D. F. HEWETT GEOLOGICAL The geology...northeastern part of the Mo_jave Desert, includz"ng mountain ranges 6,ooo-7,000 feet in altitude UNITED STATES...General features ________________________ McCullough Range ____________ _____ ____ Lucy Grey Range_______________________..._ Providence Mountains_ __________________ Clark Mountain and Ivanpah Mountain___ Southwest quarter |  | | Report (volume) | | Cinder Cones Wilderness Study Area, San Bernardino County, California U.S. GEOLOGICAL SURVEY BULLETIN 1712-B...Cinder Cones Wilderness Study Area, San Bernardino County, California By HOWARD G. WILSHIRE, JAMES G. FRISKEN...RESOURCES OF WILDERNESS STUDY AREAS: CENTRAL CALIFORNIA DESERT CONSERVATION AREA DEPARTMENT OF THE...Cinder Cones Wilderness Study Area, San Bernardino County, California. U.S. Geological Survey Bulletin 1712-B...and mineral resources California Cinder Cones Wilderness. 2. Geology California Cinder Cones Wilderness |  | Doroshkevich, A. G., Ripp, G. S., Viladkar, S. G., Vladykin, N. V. (2008) THE ARSHAN REE CARBONATITES, SOUTHWESTERN TRANSBAIKALIA, RUSSIA: MINERALOGY, PARAGENESIS AND EVOLUTION. The Canadian Mineralogist, 46 (4) 807-823 doi:10.3749/canmin.46.4.807 | Journal (article/letter/editorial) | | Arshan bastnäsite is only partially within the usual range of mantle values. The altered carbonatites are characterized...subvolcanic analogues, including teschenite and shonkinite. The Late Mesozoic (212–113 Ma) volcanic rocks...insignificant amounts. They include dikes of shonkinite that consist of K-rich feldspar, pyroxene (up...Ca, Sr, and Ba sulfates. The Rb–Sr dating of shonkinite from Khaluta and alkaline gabbro from Yuzhnoe...carbonatite-related deposits worldwide, e.g., Mountain Pass, USA (Olson et al. 1954), Kangankunde, Malawi |  | | Catalog/List | | maintained. ALL PRICES ARE F.O.B. SIERRA MADRE, CALIFORNIA AND SUBJECT TO CHANGE WITHOUT NOTICE Being strictly...ENS - pos t office box 66 5 - sierra madre - california 91024 -1- BO XE D CO L LE CT I O NS Many...following state maps imprinted on the background: California Arizona Nevada New Mex i co Wyoming Alaska ...pamphl e t is a l so included . Con ta i ns 15 mine rals, 1/ 2" to l" in size f irmly mounted on a s...FICATION CO LLECTION #100 Contains 100 ro ck and mine r a l speci me n s , 1/4 " t o 1/2 " in size, individually |  | | Journal (article/letter/editorial) | | Charles Arms Laboratory of Geological Sciences, California Institute of Technology, Pasadena, Calif. Age...rocks of a geographically contiguous region of California, Nevada, and Arizona and from widely distributed...Location of samples Figure 1. Index map of parts of California, Nevada, Arizona, and Utah showing localities...analytical data 4. Precambrian localities in Arizona, California, Nevada, Sonora, and southern Utah where isotopic...subdivision of the Precambrian rocks in southern California (Noble, 1934; Hewett, 1956) and in Arizona (Butler |  | | Report (volume) | | Fort Piute Wilderness Study Area, San Bernardino County, California U.S. GEOLOGICAL SURVEY BULLETIN 1713-C...Fort Piute Wilderness Study Area, San Bernardino County, California By JANE E. NIELSON, JAMES G. FRISKEN...WILDERNESS STUDY AREAS: EASTERN CALIFORNIA DESERT CONSERVATION AREA, CALIFORNIA DEPARTMENT OF THE INTERIOR...Fort Piute Wilderness Study Area, San Bernardino County, California. U.S. Geological Survey Bulletin 1713-C...and mineral resources California Fort Piute Wilderness. 2. Geology California Fort Piute Wilderness. |  | | Journal (article/letter/editorial) | | proposed ae an index of composition of all cerium-earth mine&e with respect to the mm-earth elements. The value...ceritee cover the entire obeerved range, whereae baetneeeites range between 80 and 92 atomic per cent...study (MURATA et al., 1959). to determine the total range of variation in the composition of monazite with...rare-earth elements. This quantity was found to range between 58 and 8’7 atomic per cent of the total...atomic percentage8 of C La + Ce + Pr in this Same range and confirm the general variation trend8 previously |  | | Report (issue) | | gov/images/periodictable.pdf. Cover. The Mountain Pass Mine, San Bernardino County, California, was the only active producer...............................................O21 Mine Waste Characteristics.........................................................................O22 Mine Closure...........................................Figures O1. O2. O3. O4. O5. Graph showing world mine production of rare-earth oxides, by country and....O6 Photograph of the Mountain Pass Mine in San Bernardino County, California, which was the only active |  | | 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 |
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