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

6134pt53 80.12 4.95 4.53 0.22 0.41 0.01 0.01 0.10 0.12 0.11 0.05 0.01 0.02 0.16 0.00 0.01 90.75 6134pt61 81.12 3.04 5.23 0.01 0.01 0.03 0.01 0.03 0.00 0.04 0.02 0.01 0.01 0.01 0.02 0.01 89.49 6134pt62 81.92 3.06 5.24 0.04 0.04 0.00 0.00 0.10 0.01 0.04 0.02 0.00 0.08 0.04 0.04 0.04 90.45 6134pt63 80.49 3.09 5.36 0.01 0.02 0.01 0.09 0.08 0.04 0.06 0.01 0.01 0.01 0.04 0.09 0.01 89.37 6134pt64 81.96 3.12 4.98 0.05 0.04 0.01 0.02 0.10 0.02 0.06 0.04 0.00 0.07 0.02 0.01 0.01 90.44 6134pt81 79.17 2.87 4.43 0.01 0.02 0.01 0.56 1.40 0.09 0.07 0.02 0.10 0.03 0.16 0.07 0.01 88.96 6134pt82 79.67 2.90 4.69 0.02 0.07 0.03 0.35 1.44 0.06 0.00 0.03 0.07 0.02 0.08 0.10 0.05 89.42 6134pt83 80.29 3.14 3.87 0.03 0.78 0.01 0.05 0.11 0.08 0.03 0.04 0.00 0.04 0.12 0.00 0.00 88.53 6134pt84 77.08 2.76 5.44 0.04 0.02 0.02 0.52 0.61 0.09 0.01 0.00 0.04 0.06 0.21 0.02 0.04 86.86 6134pt8a1 80.50 4.02 5.50 0.04 0.11 0.02 0.00 0.07 0.01 0.12 0.06 0.02 0.07 0.05 0.03 0.00 90.45 6134pt8a2 82.92 2.92 5.30 0.07 0.04 0.02 0.09 0.11 0.01 0.07 0.01 0.04 0.09 0.01 0.07 0.02 91.62 6134pt8a3 77.51 1.83 5.81 0.17 0.02 0.02 0.05 0.16 0.11 0.15 0.00 0.03 0.12 0.01 0.05 0.06 85.99 6134pt91 63.41 3.15 4.32 0.08 0.04 0.03 0.24 1.46 0.18 0.19 0.03 0.05 0.08 0.12 0.05 0.02 73.42 6134pt92 75.28 3.78 5.33 0.02 0.07 0.01 0.29 1.41 0.22 0.08 0.00 0.03 0.01 0.20 0.02 0.07 86.69 6134pt93 73.41 2.98 5.18 0.09 0.09 0.05 0.31 1.60 0.28 0.29 0.03 0.02 0.07 0.19 0.06 0.03 84.62 6134pt9a1 81.55 3.36 4.25 0.18 0.69 0.00 0.08 0.07 0.15 0.10 0.01 0.01 0.06 0.07 0.02 0.00 90.57 6134pt9a2 80.44 2.93 4.23 0.04 0.47 0.06 0.14 0.20 0.15 0.07 0.01 0.01 0.05 0.13 0.02 0.04 88.96 6134pt9a3 78.82 3.02 4.69 0.02 0.60 0.03 0.15 0.05 0.14 0.05 0.01 0.00 0.03 0.15 0.04 0.05 87.79 6134pt9a4 77.24 5.45 4.77 0.44 0.46 0.04 0.00 0.12 0.19 0.16 0.00 0.01 0.09 0.16 0.05 0.03 89.07 6134pt101 73.83 6.55 3.47 1.32 0.00 0.03 0.07 0.41 0.09 0.14 0.00 0.01 0.05 0.27 0.01 0.06 86.09 6134pt102 64.50 9.49 2.43 9.15 0.06 0.01 0.12 0.65 0.12 0.28 0.06 0.03 0.05 0.32 0.26 0.05 87.17 6134pt103 74.14 7.47 3.23 1.59 0.01 0.01 0.06 0.32 0.04 0.16 0.00 0.01 0.01 0.27 0.03 0.04 87.34 6134pt104 74.03 5.88 2.71 1.97 0.08 0.01 0.18 1.96 0.14 0.13 0.03 0.01 0.01 0.41 0.03 0.07 87.58 6134pt105 72.59 6.19 3.29 2.40 0.04 0.02 0.08 1.39 0.14 0.15 0.02 0.01 0.03 0.26 0.11 0.01 86.58 Breccia-type U 4 mineralization Uraninite VRB_pt41 74.17 0.45 2.70 0.76 0.41 0.01 0.18 19.22 0.00 0.05 0.08 0.02 0.14 0.13 0.03 0.05 98.29 5812Pt21 73.23 0.47 3.24 0.53 0.43 0.04 0.04 18.45 0.01 0.02 0.14 0.01 0.16 0.16 0.04 0.01 96.91 5812Pt61 74.88 0.54 4.43 0.44 0.44 0.01 0.16 15.88 0.02 0.03 0.02 0.01 0.22 0.15 0.04 0.00 97.16 5812Pt11 75.58 0.50 4.51 0.62 0.46 0.03 0.18 12.07 0.02 0.04 0.03 0.01 0.42 0.45 0.08 0.05 94.92 5812Pt82 78.94 0.69 4.43 0.99 0.55 0.06 0.08 9.52 0.01 0.03 0.17 0.01 0.27 0.08 0.06 0.02 95.72 5812Pt12 76.71 0.98 6.43 0.90 0.61 0.03 0.21 6.89 0.01 0.03 0.04 0.06 0.70 0.60 0.00 0.01 94.18 5812Pt81 77.99 1.05 4.27 1.20 0.80 0.05 0.01 8.71 0.02 0.03 0.29 0.03 0.35 0.06 0.05 0.02 94.82 5812Pt22 75.02 2.40 4.63 1.28 1.74 0.01 0.14 10.07 0.05 0.05 0.03 0.73 0.67 0.31 0.11 0.03 97.15 Brannerite 5812Pt41 42.40 14.29 1.51 2.09 13.36 0.02 0.18 12.43 0.55 0.07 0.56 2.15 0.04 0.14 0.08 0.08 89.88 5812Pt31 27.03 4.83 19.26 3.17 26.60 0.11 0.20 0.81 0.03 0.05 0.04 0.01 0.17 0.01 0.08 0.04 82.29 5812Pt71 36.98 8.11 2.27 2.98 34.85 0.16 0.64 2.89 0.03 0.05 0.10 0.23 0.27 0.03 0.05 0.05 89.61 5812Pt42 34.57 3.88 9.83 2.11 36.31 0.23 0.35 1.47 0.02 0.01 0.13 0.01 0.32 0.01 0.01 0.01 89.25 5812Pt51 37.19 5.75 2.29 2.64 41.70 0.14 0.41 1.87 0.02 0.01 0.11 0.15 0.16 0.02 0.01 0.04 92.48 5812Pt72 34.34 5.10 2.06 3.13 44.54 0.13 0.46 1.91 0.01 0.02 0.06 0.09 0.23 0.01 0.11 0.04 92.09 5812Pt52 32.87 4.46 2.05 3.10 47.65 0.17 0.37 1.74 0.02 0.00 0.13 0.10 0.17 0.00 0.04 0.01 92.84 5812Pt32 25.70 4.77 4.33 4.16 52.90 0.18 0.26 1.42 0.01 0.03 0.09 0.05 0.15 0.01 0.09 0.01 94.04 Volcanic-type U 5 mineralization 6120B_pt1 76.10 0.89 3.71 0.62 0.58 0.03 0.16 13.77 0.00 0.03 0.04 0.02 0.22 0.01 0.04 0.05 96.13 6120B_pt12 73.42 1.05 2.73 0.45 0.52 0.01 0.48 17.56 0.06 0.03 0.07 0.04 0.12 0.01 0.03 0.07 96.46 6120B_pt22 71.88 1.43 3.00 0.46 0.48 0.03 0.25 17.14 0.06 0.02 0.00 0.01 0.08 0.01 0.07 0.03 94.86 6120B_pt31 74.41 0.84 3.66 0.48 0.64 0.01 0.22 15.41 0.06 0.03 0.02 0.02 0.20 0.03 0.09 0.03 95.99 6120B_pt32 74.38 1.68 2.57 0.54 0.58 0.03 0.13 15.68 0.03 0.03 0.00 0.02 0.10 0.09 0.00 0.03 95.82 6120B_pt33 73.75 0.47 3.05 0.28 0.42 0.03 0.09 17.91 0.05 0.04 0.05 0.00 0.07 0.03 0.06 0.04 96.19 6120B_pt34 74.03 0.50 2.50 0.32 0.30 0.03 0.13 20.15 0.04 0.03 0.02 0.03 0.00 0.02 0.03 0.04 98.05 6120B_pt41 71.92 0.51 2.33 0.05 0.51 0.01 0.11 20.29 0.03 0.02 0.08 0.04 0.04 0.09 0.06 0.02 95.99 6120B_pt35 74.17 9.32 1.73 2.09 1.11 0.02 0.22 0.85 0.07 0.05 0.04 0.01 0.23 0.00 0.03 0.00 89.82 6120B_pt36 74.44 9.51 1.67 1.36 1.14 0.05 0.23 1.78 0.07 0.03 0.02 0.29 0.20 0.01 0.05 0.02 90.72 6120B_pt41 70.14 0.67 2.65 0.15 0.37 0.01 0.33 19.62 0.04 0.02 0.05 0.02 0.08 0.04 0.08 0.01 94.13 6120B_pt42 74.34 1.12 4.30 0.95 0.43 0.02 0.26 14.17 0.05 0.03 0.01 0.01 0.23 0.04 0.02 0.00 95.92 6120B_pt51 72.87 0.38 2.37 0.23 0.29 0.01 0.16 19.91 0.05 0.02 0.01 0.04 0.04 0.11 0.09 0.03 96.56 6120B_pt52 73.23 0.46 2.58 0.43 0.36 0.03 0.04 19.04 0.03 0.03 0.01 0.01 0.07 0.06 0.03 0.03 96.37 6120B_pt61 71.72 0.92 2.35 0.28 0.49 0.04 0.46 19.28 0.04 0.02 0.02 0.03 0.01 0.03 0.05 0.01 95.67 6120B_pt62 70.31 0.64 2.65 0.39 0.40 0.05 0.22 20.24 0.07 0.01 0.06 0.04 0.06 0.06 0.04 0.02 95.15 Athabasca-type U 6 mineralization 6137APt42 63.93 6.67 12.03 2.91 0.04 0.01 0.17 0.67 0.07 0.01 0.03 0.03 0.54 0.00 0.06 0.05 87.13 6137APt51 35.55 9.15 24.28 7.30 0.00 0.03 0.10 0.80 0.04 0.05 0.02 0.01 0.47 0.00 0.12 0.03 77.73 6137APt52 24.60 20.95 1.53 22.12 0.02 0.00 0.22 0.31 0.01 0.01 0.01 0.00 0.35 0.00 0.53 0.00 70.12 6137APt61 61.82 4.25 16.19 2.40 0.08 0.01 0.20 2.04 0.04 0.05 0.03 0.03 0.57 0.01 0.03 0.03 87.68 99
6137APt71 60.67 13.73 4.59 6.48 0.05 0.01 0.23 0.48 0.03 0.04 0.02 0.00 0.53 0.01 0.18 0.01 86.84 6137APt72 48.70 10.57 6.69 9.26 0.04 0.01 0.03 0.54 0.05 0.08 0.03 0.02 0.45 0.02 0.25 0.02 76.46 6137APt81 26.87 21.78 13.43 4.68 0.05 0.31 0.21 0.24 0.07 0.15 0.02 0.00 0.30 0.07 0.17 0.02 68.18 6137APt82 60.21 16.36 3.11 4.97 0.11 0.04 0.13 0.17 0.16 0.14 0.02 0.00 0.51 0.08 0.02 0.04 86.00 6137APt9 60.59 9.42 13.24 2.45 0.15 0.03 0.37 0.97 0.83 0.02 0.04 0.02 0.47 0.42 0.03 0.01 88.98 Table 3.1. Electron microprobe analysis and chemical composition of uraninite and brannerite from different generations of U mineralization in the Beaverlodge area. 3.4.2.2. Chlorite Crystal Chemistry Chlorite is associated with all stages of U mineralization and is used here to estimate temperatures and compositions of the mineralizing fluids. The chemical formulas and formation temperatures of chlorite from different types of U mineralization are summarized in Table 3.2. Average Structural Formulae of various generations of Chlorites Temperature of Formation ( o C) 1 Mg 3.185Fe 1.72Al 1.Ca 0.02 (Si 3.19Al 0.81) O 10 (F 0.15 (OH) 7.85) 200 2 Mg 2.62Fe 1.22Al 2.66Ca 0.4 (Si 2.85Al 1.16) O 10 (F 0.14CL 0.02 (OH) 7.84) 310 3.a Mg 2.86Fe 1.82Al 2.41Ca 0.02Mn 0.03Ti 0.01 (Si 2.83Al 1.17) O 10 (F 0.09 (OH) 7.91) 315 3.b Mg 3.37Fe 1.27Al 2.29 (Si 2.94Al 1.06) O 10 (F 0.11 (OH) 7.89) 278 3.c Mg 3.34Fe 1.47Al 2.03 (Si 3.06Al 0.94) O 10 (F 0.16 (OH) 7.84) 242 3.c Mg 3.22Fe 1.64Al 1.96 (Si 3.09Al 0.91) O 10 (F 0.1 (OH) 7.90) 230 3.c Mg 3.09Fe 0.39Al 2.32 (Si 3.45Al 0.55) O 10 (F 0.43CL 0.02 (OH) 7.56) 116 4 Mg 2.06Fe 2.37Al 2.57Ca 0.1 (Si 2.79Al 1.21) O 10 (F 0.06 (OH) 7.94) 330 4.a Mg 3.71Fe 1.04Al 1.87 (Si 3.21Al 0.79) O 10 (F 0.17 (OH) 7.83) 194 5a Mg 2.40Fe 2.32Al 2.38Mn 0.03Ti 0.01 (Si 2.83Al 1.17) O 10 (F 0.04 (OH) 7.96) 320 5.b Mg 2.77Fe 2.06Al 1.95Mn 0.02 (Si 3.10Al 0.90) O 10 (F 0.02 (OH) 7.98) 229 5.b Mg 2.49Fe 2.12Al 2.29Ca 0.03Mn 0.02 (Si 3.08Al 0.92) O 10 (OH) 8 212 6 Mg 2.49Fe 2.36Al 1.97Ca 0.01 (Si 3.08Al 0.92) O 10 (F 0.13 Cl 0.01(OH) 7.86) 235 Table 3.2. Temperatures of formation, and average structural formulas of different generations of chlorite phases from U deposits in the Beaverlodge area. Calculated temperatures are accurate to within 25-30°C based on replicate analyses. 100
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FLUID EVOLUTION AND STRUCTURAL CONT
Page 3 and 4:
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)
Page 67 and 68: the Qtz 1 quartz dissolution result
Page 69 and 70: Figure 2.9. Microphotograph of typi
Page 71 and 72: uraninite (Fig. 2.10). The errors o
Page 73 and 74: Figure 2.10. Backscattered Electron
Page 75 and 76: post-mineralization alteration duri
Page 77 and 78: Post-mineralization alteration even
Page 79 and 80: Volcanic-type ±U 5 (Sample 6139, G
Page 81 and 82: 6134 pt8a 2 Gunnar 82.92 2.92 5.30
Page 83 and 84: Regression to zero content of the s
Page 85 and 86: faults (Fig. 2.13C). The breccias w
Page 87 and 88: Figure 2.13. Schematic cross-sectio
Page 89 and 90: Mylonites were then reactivated at
Page 91 and 92: and thrusting during the 1.94-1.92
Page 93 and 94: Beaverlodge area (Morelli et al., 2
Page 95 and 96: dikes (Ernst and Buchan, 2001b) and
Page 97 and 98: Figure 2.15: Distribution of 207 Pb
Page 99 and 100: CHAPTER 3 GENESIS OF MULTIFARIOUS U
Page 101 and 102: eccia-type. The other styles of min
Page 103 and 104: The basement consist of Neoarchean
Page 105 and 106: of essentially unmetamorphosed arko
Page 107 and 108: WDX X-ray spectrometers at Carleton
Page 109 and 110: 3.4. Results 3.4.1. Paragenesis of
Page 111 and 112: are derived from their chlorite cry
Page 113 and 114: Figure 3.4. Photomicrographs of typ
Page 115 and 116: 3.4J). Py 6 Pyrite and Cpy 5 chalco
Page 117: mineralization varies from 25.70 to
Page 121 and 122: Fig. 3.6A). The Ca may result from
Page 123 and 124: Sample ID 1 ± 2 ± 3.a ± 4 ± 5.a
Page 125 and 126: Stable isotopic O and C composition
Page 127 and 128: Sample ID Deposit Mineral Mineral v
Page 129 and 130: equilibrium with a fluid having δ
Page 131 and 132: Syn-ore Chl 8 chlorite sampled from
Page 133 and 134: Figure 3.9. Binary diagrams showing
Page 135 and 136: Figure 3.10. Chondrite-normalized R
Page 137 and 138: Retrograde metamorphism Early vein
Page 139 and 140: contents in syn-ore Chl 4 chlorite
Page 141 and 142: decompression and hydration reactio
Page 143 and 144: mineralizations, which upgraded the
Page 145 and 146: metamorphic origin of the main U 4
Page 147 and 148: y the abundance of Ap 1 apatite and
Page 149 and 150: of late fluid events that have affe
Page 151 and 152: CHAPTER 4 FLUID EVOLUTION AND GENES
Page 153 and 154: 1990, 1991; Wyborn et al., 1990). H
Page 155 and 156: stable isotope geochemistry, U-Pb g
Page 157 and 158: coincident with the initiation of s
Page 159 and 160: plasma mass spectrometry (LA-HR-ICP
Page 161 and 162: The Coronation Hill deposit occupie
Page 163 and 164: arsenides, nickel selenide and copp
Page 165 and 166: No corrections were made to the 238
Page 167 and 168: 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
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Plutons Event at 1.4 Ga (Barinek et
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Kolari-Kittila Province Kuusamo Pro
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The uranium deposits in various pro
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Fig. 5.6. Distribution of the Rorai
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Roraima Basin, similar to what is o
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etween ca. 2.3 Ga and 1.9 Ga. Later
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REFERENCES Adams, J., 1989. Postgla
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Ashton, K.E., 2010. The Gunnar Mine
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Bowles, J.F.W., 1990. Age dating of
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Cuney, M.L., 2005. World-class unco
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deposits in the Athabasca Basin, Sa
Page 241 and 242:
Hartlaub, R.P., Heaman, L.M., Chack
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Saskatchewan Geological Survey, Sas
Page 245 and 246:
Kyser, K., and Cuney, M., 2008. Geo
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two-sided oblique-slip collisional
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Creek Geosyncline: in ‘The minera
Page 251 and 252:
Piper, J.D.A., 2004. Discussion on
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99.Sheppard SMF and Gilg HA 1996. S
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Proceedings Darwin Conference 1984
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Wingate, M.T.D, Pisarevsky SA, Evan
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Sample Deposit 207 Pb/ 206 Pb ±2σ
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Page 263 and 264:
Page 265 and 266:
APPENDIX B REE contents of various
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Sample Y Zr Cs Ba Th La Ce Pr Nd Sm
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Sample ΣREE TLREE THREE LREE/HREE
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SAMPLE ID. SiO 2 TiO 2 AL 2O 3 CR 2
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SAMPLE ID. SiO 2 TiO 2 AL 2O 3 CR 2
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APPENDIX E Electron microprobe data
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SAMPLE Si 4+ AL 4+ Total AL 6+ Ti 4
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SAMPLE Si 4+ AL 4+ Total AL 6+ Ti 4
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Sample ID. Deposit UO 2 SiO 2 CaO F
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Sample ID. Deposit UO 2 SiO 2 CaO F
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Page 287 and 288:
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Sample ID. Al 2O 3 CaO FeO K2O MgO
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Sample ID. Al 2O 3 CaO FeO K2O MgO
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250 85 330 40 145 70 25 65 30 30 27
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Mineralized veins Quartz veins 276
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