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Schwartzwalder uranium deposit

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Journal Article
Journal: Economic Geology
Published: 01 November 1985
Economic Geology (1985) 80 (7): 1858–1871.
...K. R. Ludwig; Alan R. Wallace; K. R. Simmons Abstract U-Pb isotope analyses of ores from the Schwartzwalder uranium mine, Colorado, show that these ores have high amounts of initial (common) Pb and that the initial Pb was both variable and relatively radiogenic in its Pb isotope ratios ( 206 Pb...
Journal Article
Journal: Economic Geology
Published: 01 July 1986
Economic Geology (1986) 81 (4): 872–888.
...Alan R. Wallace; Joseph F. Whelan Abstract The Schwartzwalder uranium deposit formed at 69.3 + or - 1.1 m.y. in a complex fracture system during the inception of Laramide uplift of the Front Range in Colorado. Geologic and isotopic evidence demonstrates that the ore-forming fluids were in chemical...
Journal Article
Journal: Economic Geology
Published: 01 November 1985
Economic Geology (1985) 80 (7): 1842–1857.
...Alan R. Wallace; Richard C. Karlson Abstract A detailed study of the geology of the Schwartzwalder uranium deposit in the eastern foothills of the Front Range of Colorado reveals several geologic features that, in combination, provided a much better setting for uranium deposition than at other...
Journal Article
Published: 01 October 1979
Rocky Mountain Geology (1979) 17 (2): 179–186.
Journal Article
Journal: Economic Geology
Published: 01 July 1979
Economic Geology (1979) 74 (4): 947–948.
Journal Article
Journal: Economic Geology
Published: 01 July 1979
Economic Geology (1979) 74 (4): 948–951.
Journal Article
Journal: Economic Geology
Published: 01 July 1978
Economic Geology (1978) 73 (4): 552–557.
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1985
AAPG Bulletin (1985) 69 (10): 1877–1881.
... solution mining the remaining reserves on the Highland property. Sequoyah Fuels Corporation conducted pilot-plant leaching operations at its Bill Smith property in the southern Powder River basin. Uranium deposits in the south Texas coastal plain occur in sandstone beds of several formations...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1984
AAPG Bulletin (1984) 68 (10): 1678–1683.
... is returned to the United States for marketing. The Front Range in east-central Colorado ( Figure 3 , no. 11) contains numerous vein-type uranium deposits. The only operating mine is Cotter Corp.’s Schwartzwalder mine near Golden, Colorado. The ore is trucked to Cotter’s mill at Canon City, Colorado...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1987
AAPG Bulletin (1987) 71 (10B): 384–389.
... in the United States. Canada continued to dominate the world market. The development under way at the huge Olympic Dam deposit in Australia will increase that country’s production. United States uranium production is expected to show a small decrease in 1987. Uranium exploration and production in the United...
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Journal Article
Journal: AAPG Bulletin
Published: 01 October 1986
AAPG Bulletin (1986) 70 (10): 1632–1637.
...) contains uranium deposits in the Salt Wash Member of the Morrison Formation and in the Triassic Chinle Formation. Areas of uranium activity in 1985 included the Uravan mineral belt (Morrison) and Lisbon Valley (Chinle). In Lisbon Valley, Utah, the mine-mill complex of the Rio Algom Corporation operated...
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Journal Article
Journal: AAPG Bulletin
Published: 01 October 1988
AAPG Bulletin (1988) 72 (10B): 391–396.
... of 1987, only 5 uranium mills were operating in the United States. The large, high-grade reserves being discovered and developed in Saskatchewan will enable Canada to dominate the world market for many years. Development of the Olympic Dam deposit continued in Australia and will begin production in 1988...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 May 2001
GSA Bulletin (2001) 113 (5): 659–670.
... Survey in Denver. Multiple analyses of a solution of secular equilibrium uranium ore from the 69 Ma Schwartzwalder deposit ( Ludwig et al., 1985 ) performed over the same period of time as samples run for this study gave calculated 234 U/ 238 U and 230 Th/ 238 U activity ratios within analytical error...
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Journal Article
Published: 01 February 1987
Jour. Geol. Soc. India (1987) 29 (2): 287–289.
... Status. Bull. No. 1659, pp. 1-39. YOUNG, E. J., (1985) Summary of the Geology, Economic Aspects and Geochemistry of the Schwartzwalder Uranium-bearing Area, Ralston Buttes District, Jefferson County, Colorado, BUll. No. 1555, pp. 1-32. POMEROY, J. S. and THOMAS, R. E., (1985) Geologic Relationships orS...
Journal Article
Published: 01 September 2014
Jour. Geol. Soc. India (2014) 84 (3): 281–291.
... Hydrothermal uranium deposits world-wide are known to be associated with extensive wall-rock alteration. Hematitization of wall-rock is one of the characteristic features of the well-known deposits at Beaverlodge, NW Saskatchewan, Canada and Schwartzwalder, U.S.A. ( Robert et al. 1977 , p.19). However, in some...
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Journal Article
Journal: GSA Bulletin
Published: 17 September 2019
GSA Bulletin (2020) 132 (3-4): 863–883.
... , The Schwartzwalder uranium deposit, II: Age of uranium mineralization and Pb-isotope constraints on genesis : Economic Geology and the Bulletin of the Society of Economic Geologists , v. 80 , p. 1858 – 1871 , https://doi.org/10.2113/gsecongeo.80.7.1858 . Ludwig , K.R. , Simmons , K.R. , Szabo...
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Journal Article
Journal: Geosphere
Published: 01 October 2014
Geosphere (2014) 10 (5): 1043–1060.
...-7606(1963)74[991:PAOTCM]2.0.CO;2 . Wallace A.R. Whelan J.F. , 1986 , The Schwartzwalder uranium deposit, III: Alteration, vein mineralization, light stable isotopes, and genesis of the deposit : Economic Geology and the Bulletin of the Society of Economic Geologists , v. 81 , p. 872...
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Journal Article
Published: 03 April 2023
American Mineralogist (2023) 108 (4): 754–768.
... , M. , and MacRae , C. ( 2013 ) 3D representation of geochemical data, the corresponding alteration and associated REE mobility at the Ranger uranium deposit, Northern Territory, Australia . Mineralium Deposita , 48 , 947 – 966 , https://doi.org/10.1007/s00126-013-0463-6 . Förster...
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Journal Article
Published: 01 November 2007
Vadose Zone Journal (2007) 6 (4): 1018–1030.
... intercalibration, and for any peak-tail under mass 236 were calculated from bracketed analyses of an in-house secular equilibrium natural uranium standard (20 μg L −1 solution of U ore from the Schwartzwalder Mine, CO, provided by W. Sharp, Berkeley Geochronology Center, Berkeley, CA). Isotopic compositions were...
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Series: GSA Field Guide
Published: 01 January 2004
DOI: 10.1130/0-8137-0005-1.109
EISBN: 9780813756059
... places, there is a clastic contribution to the unit, producing quartz gneiss. In the area of the Schwartzwalder uranium mine, the unit thickens to 100 m and develops into an iron formation (Figs. 10 and 1 1), with all four facies of iron formation present. Massive sulfide deposits occur locally. Much...
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