 | | Journal (article/letter/editorial) | | Fault-RelatedSulfidein the Origin of the Ray Point Uranium District, SouthTexas MARTIN B. GOLDHABER, RICHARD...FederalCenter, Denver,Colorado80225 Abstract The Lamprecht and Felder depositsare two of many roll-type uranium...depositshostedby the MioceneOakvilleSandstone in the Ray Point(southTexas)uraniumdistrict.The deposits in thisdistrictare...that it containsFeS2minerals in contrastto other Texas and Wyoming roll-type depositswhich typicallyhavean...reducingconditions within the OakvilleSandstone. The Ray Pointuraniumdistrictthusformedand waspreserved by |  | | Journal (article/letter/editorial) | | IsotopeSystematics of the Felder Uranium Deposit, South Texas K. R. LUDWIG, M. B. GOLDHABER,R. L. RI•YNOLDS,AND...Oakvillefault (GoldMcLean 5 mine, like ore in the now-inactive McLean 1 mine, is rich in molybdenumand...uranium mineralsare apparentlypitchblendeand coffinite,whichoccurascoatingsof sand grains,as pore spacefillings...tongueof the roll front exposedin 4B of the Felder mine is pyrite, with bulk sulfurisotopiccompositions...roll exposed Lamprecht depositsare similar to that of H2S in sour in pit 4B of the Felder mine. All of theseore |  | | Journal (article/letter/editorial) | | Texas mineral locality INDEX Whereas Texas is well known for its vastness, cattle industry, and oil...I T S T O P O G R A P H Y A N D G E O L O G Y , Texas, the second largest state, has produced relatively...famous localities. A s this article will show, Texas has had—or currently has—nu merous mineral occurrences...produce good specimens; yet when specimens from Texas are sought in collections and dealers' stocks, few...some basic facts that help explain the situation. Texas has very little federal land in its mineralized |  | | Journal (article/letter/editorial) | | observed as uraninite with a certain proportion of coffinite and, less commonly, ningyoite. Accessory elements...example is the roll subtype deposits in Wyoming, USA. In 1960, this region was noted to contain uranium...Alpine deposits (for example, Vitim uranium ore district, Trans-Baikal region). A paleovalley (basal according...which is located in the Trans-Ural uranium ore district, can serve as an example (Kondrat’eva and Maksimova...a thick permafrost zone. The Vitim uranium ore district is an example of the latter. Permafrost screen |  | | Book | | individual deposits or districts. (in brackets country, district, deposit reviewed): Adamek P. (Scandinavia), Adams...Africa, Namibia), Chenoweth W. (Colorado Plateau, USA), Coste A. (Limousin, France), Cuney M. (granites...Grauch R (western USA), Gautier A. (breccia pipe deposits, USA), Halladay Ch.R (eastern USA), Harshman E.N...N. (Wyoming Basins, USA), Hruby J. (CSFR), Kolb S. (Bavaria, W-Germany), Krol W. (Eastern Europe), Matos... N.M., USA), Smith RB. (South Texas, USA), Tan H.B. (Canada), Thamm J. (Colorado Plateau, USA), Tauchid |  | | Report (volume) | | the Gulf Coastal Uranium Province (GCUP) in south Texas and adjacent Mexico. Volcanic uranium deposits are...the Oregon-Nevada border through the Marysvale district of Utah and Date Creek Basin in Arizona and south...south into the Sierra de Peña Blanca District, Chihuahua, Mexico. Uraniferous phosphorite occurs in Tertiary...volcanic centers in the Sierra de Peña Blanca district within the BRUP may have provided uranium-rich...PROVINCES OF NORTH AMERICA attendant exploration, mining, and milling activities. The provinces are identified |  | | Report (issue) | | Morrison Formation, Grants uranium region, New Mexico, USA ...................................................environment of tertiary uranium deposits, South Texas uranium province .................................scope of the Handbook is to report on at least one district in each country having sandstone-type uranium...Cretaceous ages, USA; (2) the Salt Wash Member, Morrison Formation, Colorado Plateau, USA; (3) Tertiary...Wyoming basins, USA; (4) Miocene basal deposits, British Columbia, Canada; and (5) Potwar district, Pakistan |  | | Report (issue) | | . 37 2.4.2. Geologic setting of Witwatersrand district, South Africa..................... 38 2.4.3. Ore...Ore geometry and metallogenesis of Witwatersrand district, South Africa...................................given production cost ranges with currently proven mining and processing technology, can be specified. Estimates...basement hosted (McArthur River, Rabbit Lake, Eagle Point, McClean Lake, Dominique-Peter in Canada; Jabiluka...Mynkuduk (Kazakhstan); Crow Butte and Smith Ranch (USA) and Bukinay, Sugraly and Uchkuduk (Uzbekistan). |  | | Report (volume) | | Environmental issues such as coping with uranium mine and mill tailings and other uranium-contaminated...Uranium-bearing Minerals and Inorganic Phases by X-ray Powder Diffraction Frances C. Hill TABLE OF CONTENTS............................................. 27 X-ray-diffraction data ........................................................................... 505 X-RAY ABSORPTION SPECTROSCOPY .................................................................... 510 X-RAY PHOTOELECTRON SPECTROSCOPY ..................... |  | | Journal (article/letter/editorial) | | core of the anticline towards reduced values in mining sites more peripheral to this fold structure. Pb...Pb isotopes of stibnite as well as Pb sulphides point to a crustal derivation of both elements. An in-situ...knowledge of Sb metallogenesis from the thermometric point of view. In Germany no antimony occurrences are...Frankenwald and Thueringet Wald - Fig. la), where mining activity persisted up to the fifties (BAcHMANN...(Fig. la) and near Waldsassen (Fig. 1a). These mining sites are more famous on their gold contents rather |  | | Report (issue) | | ......................................59 3.3.4. Mine data .............................................reflected the start of mining at Cigar Lake in 2014, and China (+95%). Production from the USA decreased by 50%...Rössing in Namibia and the closure of the Kayelekera mine in Malawi as a result of low prevailing uranium...Country 2010 2011 2012 2013 2014 2015 Canada USA Kazakhstan Germany Australia Russian Federation South...Niger Russian Federation Namibia Uzbekistan China USA Ukraine South Africa Malawi India Brazil Czech Republic |  | | Report (issue) | | Brooks Range, Alaska, in 1979, prior to drilling or mining. Ground water seeping from the Red Dog deposit...«2. of the eccisemene of the Misima Gold-Silver Mine, Papua New Guinea ........ .G. I. Wilson and R....C. Barwick eae ie Discovery. The McLaughlin Gold Mine, Napa, Yolo, and Lake Counties, California Fre...is arbitrary, because concepts have changed in mine was in production until the 1970s. Some indi- cations...Ni-Cu and platinumgroup elements in the Noril’sk district of Siberia had ered from Ni-Cu deposits in all |  | | Book (volume) | | geophysics of North America through the 1980s, and they point the way toward work to be done in the decades ahead...some prospecting and mining was carried out by the Russians. The first recorded mining venture in Alaska...was on the Kenai Peninsula, where a placer gold mine was operated from 1848 to about 1850. The Russians...Penin¬ sula for use as fuel for steamships, but the mine was abandoned after about 10 years. Published knowledge...1912. Following the change of ownership of Alaska, mining and exploration activity continued at a low level |
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