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$Fayek & Kyser 2000 uraninite fractionations.pdf - Queen's University$

APPENDIX D Electron microprobe analyses of various chlorite phases from deposits of the Beaverlodge area SAMPLE ID. SiO 2 TiO 2 AL 2O 3 CR 2O 3 FeO MnO MgO CaO NA 2O K 2O F CL H 2O O=F O=CL Total Temp ( o ) ± RETROGRADE LOWER GREENSCHIST CHLORITE (Cl1) Cl48-7 29.83 0.00 14.82 0.06 19.52 0.07 18.82 0.30 0.02 0.01 0.55 0.00 10.94 -0.23 0.00 94.71 197 Cl48-3 30.10 0.00 15.68 0.02 19.23 0.15 19.74 0.15 0.00 0.00 0.34 0.00 11.30 -0.14 0.00 96.56 211 Cl48-5 29.61 0.01 15.56 0.00 18.54 0.12 19.33 0.16 0.00 0.00 0.44 0.00 11.04 -0.19 0.00 94.63 210 Cl48 30.92 0.00 13.81 0.00 19.72 0.13 20.51 0.12 0.04 0.02 0.51 0.00 11.20 -0.21 0.00 96.77 183 Cl48-2-1 30.79 0.01 14.36 0.00 20.22 0.10 20.28 0.00 0.01 0.01 0.42 0.00 11.30 -0.18 0.00 97.32 192 AVG 30.25 0.00 14.85 0.02 19.45 0.11 19.74 0.15 0.01 0.01 0.45 0.00 11.16 -0.19 0.00 96.00 199 14 EARLY TENSIONAL VEINS URANIUM MINERALIZATION (Cl4) 6122_pt1-2-Cl 29.99 0.02 25.80 0.00 12.16 0.15 18.28 0.28 0.46 0.11 0.17 0.12 12.23 -0.07 -0.03 100.12 287 6122_pt2-1 27.23 -0.01 21.92 0.06 15.36 0.17 17.80 1.88 0.21 0.09 0.50 0.20 11.29 -0.21 -0.05 96.79 318 6122_pt3-2 27.70 -0.01 22.82 0.07 16.71 0.07 19.24 0.37 0.10 0.03 0.16 0.07 11.83 -0.07 -0.02 99.34 329 6122_pt4-1 25.53 0.00 19.50 0.04 11.47 0.22 14.11 10.29 0.44 0.57 0.87 0.10 10.55 -0.37 -0.02 93.71 329 6122_pt4-2 27.34 0.03 19.66 0.09 15.16 0.16 15.72 4.54 0.19 0.73 0.32 0.14 11.07 -0.13 -0.03 95.44 288 AVG 27.56 0.00 21.94 0.05 14.17 0.15 17.03 3.47 0.28 0.31 0.40 0.13 11.39 -0.17 -0.03 97.08 310 21 METASOMATIC -TYPE URANIUM MINERALIZATION (Cl5 Cl6) Early Chlorite associated with the metasomatic type uranium mineralization (Cl 5 ) Gn21-1 26.65 0.07 19.29 0.00 20.31 0.37 17.80 0.01 0.04 0.02 0.31 0.00 11.11 -0.13 0.00 95.85 312 Gn21-2 26.97 0.05 19.13 0.00 20.39 0.41 18.56 0.00 0.01 0.00 0.23 0.00 11.28 -0.10 0.00 96.93 312 Gn21-4 26.63 0.08 19.71 0.01 20.98 0.37 17.83 0.01 0.00 0.01 0.19 0.00 11.28 -0.08 0.00 97.02 321 Gn21-5 27.24 0.04 19.64 0.00 20.61 0.43 18.17 0.02 0.01 0.00 0.26 0.00 11.35 -0.11 0.00 97.66 310 Gn21-6 26.70 0.07 19.27 0.00 20.62 0.32 18.49 0.00 0.03 0.02 0.29 0.00 11.23 -0.12 0.00 96.92 319 AVG 26.84 0.06 19.41 0.00 20.58 0.38 18.17 0.01 0.02 0.01 0.26 0.00 11.25 -0.11 0.00 96.88 315 6 Late Chlorite vein injected during late stage of the metasomatic process (Cl 6 ) GN03A-1 28.80 0.00 19.65 0.05 15.94 0.30 21.12 0.04 0.02 0.01 0.33 0.00 11.63 -0.14 0.00 97.75 282 GN03A-2 28.96 0.00 19.17 0.13 15.75 0.23 22.08 0.03 0.00 0.01 0.30 0.00 11.70 -0.13 0.00 98.24 282 GN03A-3 29.57 0.00 19.12 0.03 14.20 0.16 23.41 0.03 0.00 0.00 0.40 0.00 11.80 -0.17 0.00 98.55 273 GN03A-4 29.04 0.01 19.17 0.04 13.61 0.21 23.66 0.03 0.01 0.00 0.39 0.00 11.71 -0.16 0.00 97.72 284 251
SAMPLE ID. SiO 2 TiO 2 AL 2O 3 CR 2O 3 FeO MnO MgO CaO NA 2O K 2O F CL H 2O O=F O=CL Total Temp ( o ) ± GN03A-5 29.38 0.04 19.27 0.06 15.61 0.28 21.65 0.03 0.01 0.01 0.37 0.00 11.70 -0.16 0.00 98.25 270 AVG 29.15 0.01 19.28 0.06 15.02 0.24 22.38 0.03 0.01 0.01 0.36 0.00 11.71 -0.15 0.00 98.10 278 7 Variably Altered Early Chlorite associated with the metasomatic type uranium mineralization Gn12-2-1 28.49 0.02 18.10 0.04 21.32 0.32 17.40 0.06 0.00 0.01 0.24 0.00 11.29 -0.10 0.00 97.19 262 Gn12-2-2 30.37 0.02 16.57 0.00 15.18 0.11 23.61 0.04 0.01 0.00 0.54 0.00 11.57 -0.23 0.00 97.80 235 Gn12-4-1 28.75 0.02 17.17 0.03 19.96 0.35 18.47 0.09 0.02 0.01 0.32 0.00 11.20 -0.13 0.00 96.26 248 Gn12-4-2 29.73 0.00 16.20 0.01 15.10 0.07 23.53 0.03 0.02 0.00 0.44 0.00 11.44 -0.19 0.00 96.38 240 Gn12-6-1 28.45 0.01 18.10 0.02 21.14 0.25 17.19 0.04 0.01 0.02 0.41 0.00 11.16 -0.17 0.00 96.63 258 Gn12-6-2 30.76 0.01 16.18 0.01 14.14 0.16 24.14 0.01 0.02 0.01 0.26 0.00 11.71 -0.11 0.00 97.30 222 Gn12-8-1 28.47 0.02 18.13 0.01 20.59 0.28 17.35 0.05 0.02 0.01 0.44 0.00 11.14 -0.19 0.00 96.32 257 Gn12-8-2 29.91 0.03 16.13 0.00 14.29 0.14 23.05 0.02 0.02 0.01 0.52 0.00 11.31 -0.22 0.00 95.21 226 Gn12-101 28.49 0.00 17.60 0.02 21.33 0.34 17.90 0.08 0.06 0.03 0.43 0.00 11.20 -0.18 0.00 97.30 261 Gn12-102 30.44 0.02 15.97 0.00 14.54 0.15 23.99 0.00 0.02 0.01 0.25 0.00 11.64 -0.11 0.00 96.92 226 Gn12-111 29.03 0.01 17.49 0.03 19.76 0.34 19.08 0.05 0.08 0.04 0.57 0.00 11.25 -0.24 0.00 97.49 253 GN12-112 30.63 0.05 16.13 0.02 14.03 0.15 24.71 0.01 0.05 0.01 0.73 0.00 11.53 -0.31 0.00 97.74 230 GN-12-1 29.70 0.01 16.07 0.01 15.07 0.01 23.01 0.00 0.01 0.00 0.43 0.00 11.34 -0.18 0.00 95.48 233 AVG 29.48 0.02 16.65 0.02 16.95 0.20 21.74 0.03 0.04 0.02 0.48 0.00 11.39 -0.20 0.00 96.99 242 20 6140-1 29.88 0.00 15.97 0.04 18.10 0.05 20.83 0.03 0.01 0.01 0.27 0.00 11.38 -0.11 0.00 96.45 223 6140-2 29.88 0.00 15.97 0.04 18.10 0.05 20.83 0.03 0.01 0.01 0.27 0.00 11.38 -0.11 0.00 96.45 223 6140-3 29.29 0.01 15.94 0.06 19.97 0.04 20.34 0.01 0.01 0.02 0.38 0.00 11.29 -0.16 0.00 97.20 240 6140-4 29.46 0.02 16.05 0.02 18.31 0.07 20.84 0.03 0.02 0.05 0.27 0.00 11.34 -0.11 0.00 96.37 234 6140-5 29.18 0.01 15.56 0.01 19.32 0.05 20.19 0.03 0.01 0.01 0.34 0.00 11.17 -0.14 0.00 95.73 231 AVR 29.54 0.01 15.90 0.03 18.76 0.05 20.61 0.03 0.01 0.02 0.31 0.00 11.31 -0.13 0.00 96.44 230 8 6134_Pt2_Cl1 34.61 0.02 19.74 0.01 8.14 0.18 21.49 0.49 0.06 0.12 0.92 0.15 11.85 -0.39 -0.03 97.32 141 6134_Pt2_Cl2 35.20 -0.01 19.46 0.01 2.91 0.32 22.27 1.74 0.05 0.13 2.05 0.14 11.22 -0.86 -0.03 94.59 114 6134_Pt3_Cl1 36.06 0.01 20.00 0.03 3.53 0.30 21.07 0.97 0.06 0.17 1.01 0.11 11.78 -0.43 -0.02 94.62 92 6134_Pt4_Cl1 36.14 0.02 21.88 -0.01 4.59 0.25 20.48 0.92 0.04 0.27 1.56 0.06 11.82 -0.66 -0.01 97.62 116 AVG 35.50 0.01 20.27 0.01 4.79 0.26 21.33 1.03 0.05 0.17 1.38 0.11 11.67 -0.59 -0.02 96.04 116 24 BRECCIA-TYPE URANIUM MINERALIZATION (Cl7) 5812A-2 24.73 0.03 18.95 0.05 22.98 0.05 13.57 2.32 0.07 0.02 - 0.00 10.72 0.00 0.00 93.49 335 5812A-3 24.63 0.00 18.86 0.03 18.70 0.07 15.01 2.14 0.06 0.00 - 0.00 10.54 0.00 0.00 90.04 324 5812A-3-1 24.63 0.00 19.27 0.07 23.22 0.08 12.94 0.65 0.04 0.00 - 0.00 10.53 0.00 0.00 91.43 323 5812A-5-2 25.72 0.03 20.40 0.06 27.38 0.08 11.92 0.11 0.04 0.00 - 0.00 11.01 0.00 0.00 96.75 324 5812A-8-1 24.06 0.04 18.36 0.10 26.34 0.16 10.77 2.07 0.05 0.00 - 0.00 10.39 0.00 0.00 92.34 332 5812A-8-2 25.34 0.05 19.66 0.07 26.42 0.11 11.87 0.40 0.08 0.00 - 0.00 10.79 0.00 0.00 94.79 319 252
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FLUID EVOLUTION AND STRUCTURAL CONT
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Abstract Uranium deposits associate
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Co-Authorship This thesis and the m
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Sarah Rice and Jonathan Cloutier, a
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TABLE OF CONTENTS Abstract………
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2.5.2. Temporal relationships of fa
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4.5.3. Isotopic compositions of min
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List of Figures Figure 1.1. General
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Figure 4.16. Distribution of 207 Pb
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Table 4.4. Isotopic data of the U-P
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processes by which these deposits f
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Figure 1.1. Generalized geological
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which is the equivalent of the Mill
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dolostone and carbonaceous shale (L
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Mineral Field (Figure 1.2). Many de
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2005). U mineralization is controll
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Figure 1.4. Schematic representatio
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In particular, the key issues to be
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genetic model for the U mineralizat
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fourth and most significant uranium
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The Beaverlodge area is part of the
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1998; Hartlaub and Ashton, 1998). R
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(D 1 ) produced a regional migmatit
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These previous age models do not ta
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the age when the concentrations of
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Figure 2.3. A: Detailed geologic ma
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hornblende-feldspar gneiss showing
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east-west striking en-échelon quar
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and broken Kfs 1 and Qtz 1 embedded
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A Meters LEGEND B Figure 2.6. A: De
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Figure 2.7. Microphotograph of vari
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eplaces Kfs 1 feldspars (Fig. 2.7A)
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the Qtz 1 quartz dissolution result
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Figure 2.9. Microphotograph of typi
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uraninite (Fig. 2.10). The errors o
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Figure 2.10. Backscattered Electron
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post-mineralization alteration duri
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Post-mineralization alteration even
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Volcanic-type ±U 5 (Sample 6139, G
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6134 pt8a 2 Gunnar 82.92 2.92 5.30
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Regression to zero content of the s
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faults (Fig. 2.13C). The breccias w
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Figure 2.13. Schematic cross-sectio
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Mylonites were then reactivated at
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and thrusting during the 1.94-1.92
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Beaverlodge area (Morelli et al., 2
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dikes (Ernst and Buchan, 2001b) and
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Figure 2.15: Distribution of 207 Pb
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CHAPTER 3 GENESIS OF MULTIFARIOUS U
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eccia-type. The other styles of min
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The basement consist of Neoarchean
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of essentially unmetamorphosed arko
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WDX X-ray spectrometers at Carleton
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3.4. Results 3.4.1. Paragenesis of
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are derived from their chlorite cry
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Figure 3.4. Photomicrographs of typ
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3.4J). Py 6 Pyrite and Cpy 5 chalco
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mineralization varies from 25.70 to
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6137APt71 60.67 13.73 4.59 6.48 0.0
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Fig. 3.6A). The Ca may result from
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Sample ID 1 ± 2 ± 3.a ± 4 ± 5.a
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Stable isotopic O and C composition
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Sample ID Deposit Mineral Mineral v
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equilibrium with a fluid having δ
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Syn-ore Chl 8 chlorite sampled from
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Figure 3.9. Binary diagrams showing
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Figure 3.10. Chondrite-normalized R
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Retrograde metamorphism Early vein
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contents in syn-ore Chl 4 chlorite
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decompression and hydration reactio
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mineralizations, which upgraded the
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metamorphic origin of the main U 4
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y the abundance of Ap 1 apatite and
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of late fluid events that have affe
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CHAPTER 4 FLUID EVOLUTION AND GENES
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1990, 1991; Wyborn et al., 1990). H
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stable isotope geochemistry, U-Pb g
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coincident with the initiation of s
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plasma mass spectrometry (LA-HR-ICP
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The Coronation Hill deposit occupie
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arsenides, nickel selenide and copp
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No corrections were made to the 238
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which was interpreted as being asso
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porphyry and coated by Chl 1 formin
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Mineralized breccias showing quartz
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SOUTH ALLIGATOR RIVER GROUP EL SHER
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A Carbonaceous Shale B Src 1 Qtz 1
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A Granite Qtz 0 fragments Qtz 0 B M
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chemical composition as a result of
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Sample I.D SiO 2 CaO FeO ThO 2 MnO
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site occupancy (Cathelineau, 1988).
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Mineral values Temperature Fluid va
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Corrected ratios Apparent ages ( ±
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G H Figure 4.12. U-Pb concordia dia
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Figure 4.13. Pb-Pb isochron diagram
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and 4.12B), and to 207 Pb/ 206 Pb a
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160 o C at Coronation Hill. The tem
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Figure 4.15. Conceptual genetic mod
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of the Koolpin Formation, while dep
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at ca. 1820 Ma, approximately 40 My
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culminating with the formation of R
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deposits is related to fluids deriv
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CHAPTER 5 GENERAL DISCUSSION 5.1. I
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ed-bed strata and associated volcan
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character of the fluid that formed
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5.2.1.2. Metamorphic-related uraniu
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during brecciation or reduction as
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ca. 1820 Ma that triggered reactiva
Page 219 and 220: Plutons Event at 1.4 Ga (Barinek et
Page 221 and 222: Kolari-Kittila Province Kuusamo Pro
Page 223 and 224: The uranium deposits in various pro
Page 225 and 226: Fig. 5.6. Distribution of the Rorai
Page 227 and 228: Roraima Basin, similar to what is o
Page 229 and 230: etween ca. 2.3 Ga and 1.9 Ga. Later
Page 231 and 232: REFERENCES Adams, J., 1989. Postgla
Page 233 and 234: Ashton, K.E., 2010. The Gunnar Mine
Page 235 and 236: Bowles, J.F.W., 1990. Age dating of
Page 237 and 238: Cuney, M.L., 2005. World-class unco
Page 239 and 240: deposits in the Athabasca Basin, Sa
Page 241 and 242: Hartlaub, R.P., Heaman, L.M., Chack
Page 243 and 244: Saskatchewan Geological Survey, Sas
Page 245 and 246: Kyser, K., and Cuney, M., 2008. Geo
Page 247 and 248: two-sided oblique-slip collisional
Page 249 and 250: Creek Geosyncline: in ‘The minera
Page 251 and 252: Piper, J.D.A., 2004. Discussion on
Page 253 and 254: 99.Sheppard SMF and Gilg HA 1996. S
Page 255 and 256: Proceedings Darwin Conference 1984
Page 257 and 258: Wingate, M.T.D, Pisarevsky SA, Evan
Page 259 and 260: Sample Deposit 207 Pb/ 206 Pb ±2σ
Page 265 and 266: APPENDIX B REE contents of various
Page 267 and 268: Sample Y Zr Cs Ba Th La Ce Pr Nd Sm
Page 269: Sample ΣREE TLREE THREE LREE/HREE
Page 273 and 274: SAMPLE ID. SiO 2 TiO 2 AL 2O 3 CR 2
Page 275 and 276: APPENDIX E Electron microprobe data
Page 277 and 278: SAMPLE Si 4+ AL 4+ Total AL 6+ Ti 4
Page 279 and 280: SAMPLE Si 4+ AL 4+ Total AL 6+ Ti 4
Page 281 and 282: Sample ID. Deposit UO 2 SiO 2 CaO F
Page 283 and 284: Sample ID. Deposit UO 2 SiO 2 CaO F
Page 285 and 286: Corrected ratios Apparent ages ( ±
Page 287 and 288: Corrected ratios Apparent ages ( ±
Page 289 and 290: Sample ID. Al 2O 3 CaO FeO K2O MgO
Page 291 and 292: Sample ID. Al 2O 3 CaO FeO K2O MgO
Page 293 and 294: 250 85 330 40 145 70 25 65 30 30 27
Page 295 and 296: Mineralized veins Quartz veins 276
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