rare earth elements in Wyoming

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table 21. Concentration of the REE and P 2 O 5 in the Phosphoria Formation near Hoback. Bold values indicate concentrations greater than five times crustal abundance. Phosphoria Formation; Hoback, WY Element La (ppm) Ce (ppm) Pr (ppm) Nd (ppm) Sm (ppm) Eu (ppm) Gd (ppm) Tb (ppm) Dy (ppm) 20121003JC-A 5.7 3.7 0.85 3.2 0.52 0.14 0.62 0.1 0.64 20121003JC-B 37.4 53.2 7.48 28.3 5.6 1.1 5.09 0.81 4.69 20121003JC-C 218 67.9 26.8 105.5 17.1 3.62 19.65 2.85 18.7 Element Ho (ppm) Er (ppm) Tm (ppm) Yb (ppm) Lu (ppm) Sc (ppm) Y (ppm) Cumulative REE (ppm) P2O5 (%) 20121003JC-A 0.14 0.47 0.07 0.45 0.08
figure 26. Dahllite concretions from the Cretaceous Thermopolis Shale near the Wyoben bentonite mine, northwest of Greybull., A, sample 20121018JC-E. B, interior of a dahllite concretion. stained vein quartz, mineralized with chalcopyrite, pyrite, bornite, malachite, and hematite, analyzed for this report yielded 17.25 ppm (0.50 oz/ton) gold, 41.3 ppm (1.20 oz/ton) silver, and 2.62 percent copper. Gold Coin Mine, SW¼ sec. 11, T. 15 N., R. 87 W., Southern Carbon County 63 The Gold Coin mine targeted copper, lead, gold, and silver mineralization within a 0.3 m (1.0 ft) wide quartz vein (Beeler, 1902; Hausel, 1997). The vein is concentrated within a fissure that trends 75˚ and dips to the south at a high angle (Spencer, 1904). The vein cuts the regional foliation of the hosting Late Archean black diorite (Beeler, 1902; Spencer, 1904). A sample of vein quartz with abundant limonite (possibly replacing sulfides), galena, chalcopyrite with chalcocite rims, and minor malachite (Sample 20121203WSGS-B) from the Gold Coin mine yielded 318 ppm (9.27 oz/ton) silver, 0.11 ppm (0.003 oz/ton) gold, 0.11 percent copper, and 14.6 percent zinc. Section 8 Mine, S½SE¼ sec. 8, T. 14 N., R. 85 W., Southern Carbon County The Section 8 mine targeted copper mineralization hosted in pyritized banded chert within amphibolite of the Silver Lake Metavolcanics, though the exact field relationship between the amphibolite and chert is unknown. In addition to the amphibolite, chlorite garnet schist is also present in the Silver Lake Metavolcanics in the vicinity of the Section 8 mine. The banded chert has a trend of 81˚ and dips 52˚ SE. Mineralization is concordant with the local banding in the chert. A sample from the mine yielded 2.61 percent copper but no detectable gold (Hausel, 1986; 1997); no silver was reported. A sample of pyrite- and chalcopyrite-bearing banded chert (Sample 20121203WSGS-D) yielded 27.4 ppm (0.80 oz/ton) silver and 6.75 percent copper. table 22. Concentration of the REE, P 2 O 5 , uranium, and thorium in dahllite concretions from the Thermopolis Shale near Greybull. Bold values indicate concentrations greater than five times crustal abundance. Element La (ppm) Ce (ppm) Pr (ppm) Wyo-Ben mine dahllite Nd (ppm) Sm (ppm) Eu (ppm) Gd (ppm) Tb (ppm) Dy (ppm) Ho (ppm) 20121018JC-E 65.4 135 20.1 93.2 24.4 6.32 31.9 4.83 26.7 4.96 Element Er (ppm) Tm (ppm) Yb (ppm) Lu (ppm) Sc (ppm) Y (ppm) Cumulative REE (ppm) P O (%) 2 5 U (ppm) Th (ppm) 20121018JC-E 10.8 1.15 5.56 0.72 9 187.5 627.5 33.6 3.75 1.03
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are earth elements in Wyoming Wayne
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Rare Earth Elements in Wyoming Wyom
Page 6 and 7:
Deacon’s Prayer Group Claims . .
Page 9 and 10:
AbstrAct Rare earth elements (REE)
Page 11 and 12:
Wyo-DOG is a multi-tiered applicati
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neodymium-145 through electron capt
Page 15 and 16:
ability and economic factors, inclu
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Gosen, Foley, and Cordier, 2010). T
Page 19 and 20: Extraction of rEE Aside from genera
Page 21 and 22: diorites, and their associated pegm
Page 23 and 24: REE deposit in Wyoming and is curre
Page 25 and 26: 17 figure 1. Locations of samples c
Page 27 and 28: accessory aegirine, apatite, stront
Page 29 and 30: Precambrian occurrences Precambrian
Page 31 and 32: 23 figure 5. Sample locations and g
Page 33 and 34: table 6. Concentration of the REE,
Page 35 and 36: the Tie Siding pegmatites. The alte
Page 37 and 38: coarse-grained granite (QAP: 30% Q,
Page 39 and 40: lbs) for 1957 and 450 kg (1,000 lbs
Page 41 and 42: granite to granodiorite with rapaki
Page 43 and 44: 35 figure 10. Sample locations and
Page 45 and 46: table 10. Concentration of the REE,
Page 47 and 48: tertiary-aged Igneous occurrences L
Page 49 and 50: downstream from older REE mineral c
Page 51 and 52: 43 figure 15. Locations of 1952 USB
Page 53 and 54: samples 20110824WS-C and 20110824WS
Page 55 and 56: Samples of the Flathead were collec
Page 57 and 58: tourmaline, amphibole, spinel, sphe
Page 59 and 60: Mud creek, nW¼nE¼ sec. 19, t. 44
Page 61 and 62: figure 20. Sample locations and geo
Page 63 and 64: interaction between oxidized ground
Page 65 and 66: distinct horizons (plus one unit wi
Page 67 and 68: figure 22. Sample locations and lit
Page 69: 1977; Love, 1984). REE concentratio
Page 73 and 74: Moonstone Formation Reefs, SW¼SE¼
Page 75 and 76: EfErEncEs Adams, J.W., Arengi, J.T.
Page 77 and 78: logical Survey of Wyoming [Wyoming
Page 79 and 80: Love, J.D., 1964, Uraniferous phosp
Page 81 and 82: Saywell, T., 2011, Molycorp’s Mou
Page 83 and 84: IndEx A Abandoned Mine Lands 2 acmi
Page 85 and 86: f fergusonite 12, 13, 33 Ferris Mou
Page 87 and 88: monazite 1, 11, 12, 13, 14, 15, 18,
Page 89 and 90: strontianite 18, 19 Stump Formation
Page 91: notes
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