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

Sample Deposit 207 Pb/ 206 Pb ±2σ 207 Pb/ 235 U ±2σ 206 Pb/ 238 U ±2σ R‡ 207 Pb/ 206 Pb ± 206 Pb/ 238 U ± 207 Pb/ 235 U ± Disc‡ VR69190-10 Gunnar 0.0653 0.0007 0.599 0.050 0.067 0.006 0.99 783 21 415 34 476 32 47 VR69190-11 Gunnar 0.0652 0.0004 0.596 0.025 0.066 0.003 0.99 782 12 414 17 475 16 47 VR69190-12 Gunnar 0.0654 0.0006 0.613 0.055 0.068 0.006 1.00 788 19 424 35 486 35 46 Breccia type-uraninite B5812_1 Ace Fay 0.104 0.002 3.12 0.07 0.197 0.026 0.15 1698 39 1157 140 1437 17 32 B5812_2 Ace Fay 0.112 0.003 2.04 0.01 0.126 0.025 0.50 1825 44 767 142 1130 2 58 B5812_3 Ace Fay 0.110 0.002 2.61 0.01 0.153 0.011 0.50 1802 33 920 64 1304 2 49 B5812_4 Ace Fay 0.110 0.004 2.32 0.05 0.146 0.022 0.32 1800 74 879 125 1218 16 51 B5812_5 Ace Fay 0.108 0.004 2.58 0.03 0.160 0.004 0.59 1759 67 958 25 1294 7 46 B5812_6 Ace Fay 0.1130 0.0003 2.72 0.02 0.168 0.010 0.50 1848 5 1001 57 1335 5 46 B5812_7 Ace Fay 0.109 0.002 3.48 0.05 0.219 0.004 0.50 1778 42 1278 23 1523 12 28 B5812_8 Ace Fay 0.111 0.001 2.77 0.07 0.196 0.056 0.29 1812 24 1155 299 1349 20 36 B5812_9 Ace Fay 0.101 0.001 3.52 0.05 0.234 0.058 0.16 1649 24 1353 305 1531 11 18 B5812_10 Ace Fay 0.107 0.005 2.41 0.03 0.166 0.046 0.31 1742 88 990 252 1247 9 43 B5812_11 Ace Fay 0.112 0.003 3.90 0.64 0.255 0.088 0.64 1838 53 1465 451 1613 133 20 B5812_12 Ace Fay 0.066 0.001 1.23 0.11 0.090 0.015 0.50 802 31 557 87 814 50 31 C23-116 Cinch Lake 0.073 0.007 0.22 0.07 0.022 0.008 0.99 1010 188 143 50 201 57 86 C23-116a Cinch Lake 0.078 0.002 0.55 0.05 0.051 0.005 0.97 1145 49 320 33 443 34 72 C23-116b Cinch Lake 0.072 0.001 0.37 0.01 0.038 0.001 0.98 986 16 238 6 322 8 76 C23-116d Cinch Lake 0.072 0.001 0.37 0.01 0.038 0.001 0.99 986 16 238 6 322 8 76 C23-116e Cinch Lake 0.079 0.001 0.74 0.04 0.068 0.005 0.99 1164 24 426 27 563 25 63 C23-116f Cinch Lake 0.075 0.002 0.06 0.02 0.006 0.002 0.50 1069 43 38 11 61 19 96 C23-116n Cinch Lake 0.072 0.001 0.56 0.10 0.057 0.011 1.00 992 37 357 69 455 67 64 C23-116o Cinch Lake 0.076 0.000 0.63 0.15 0.060 0.015 1.00 1089 7 376 90 494 97 65 C23-116p Cinch Lake 0.070 0.003 0.26 0.06 0.027 0.007 0.99 929 83 173 45 235 50 81 C23-116q Cinch Lake 0.073 0.004 0.18 0.08 0.018 0.009 1.00 1016 122 115 55 165 67 89 C23-116r Cinch Lake 0.076 0.000 0.95 0.02 0.091 0.003 0.99 1093 10 563 15 680 13 49 C23-116s Cinch Lake 0.070 0.001 0.46 0.09 0.048 0.009 1.00 916 34 300 55 382 62 67 C23-116t Cinch Lake 0.077 0.001 0.57 0.08 0.054 0.008 1.00 1120 27 340 51 461 55 70 C23-116u Cinch Lake 0.074 0.001 0.37 0.07 0.036 0.007 1.00 1052 23 227 44 318 55 78 C23-116v Cinch Lake 0.077 0.001 0.22 0.04 0.020 0.004 1.00 1127 32 130 27 199 37 88 C23-116w Cinch Lake 0.070 0.002 0.21 0.04 0.022 0.004 0.99 936 66 137 26 192 31 85 C23-116x Cinch Lake 0.066 0.001 0.32 0.05 0.034 0.006 1.00 822 28 218 35 278 40 73 C23-116y Cinch Lake 0.075 0.000 0.61 0.08 0.060 0.008 1.00 1056 13 374 46 486 48 65 C23-116zb Cinch Lake 0.075 0.001 0.39 0.09 0.038 0.009 1.00 1065 29 238 57 333 68 78 241
Sample Deposit 207 Pb/ 206 Pb ±2σ 207 Pb/ 235 U ±2σ 206 Pb/ 238 U ±2σ R‡ 207 Pb/ 206 Pb ± 206 Pb/ 238 U ± 207 Pb/ 235 U ± Disc‡ C23-116zc Cinch Lake 0.073 0.001 0.26 0.05 0.026 0.005 1.00 1007 20 163 31 232 41 84 C23-116zd Cinch Lake 0.073 0.001 1.08 0.05 0.107 0.006 0.97 1016 34 657 35 744 23 35 C23-116ze Cinch Lake 0.068 0.003 0.35 0.03 0.037 0.002 0.85 854 105 236 15 303 25 72 C23-116zf Cinch Lake 0.071 0.001 0.19 0.03 0.019 0.003 1.00 954 29 124 18 176 22 87 C23-116zg Cinch Lake 0.074 0.001 0.46 0.06 0.045 0.007 1.00 1039 15 286 41 386 45 72 VRC2 Gunnar 0.0840 0.0003 1.60 0.09 0.138 0.008 1.00 1293 6 836 45 972 35 35 VRC3 Gunnar 0.0838 0.0004 1.58 0.05 0.137 0.004 0.99 1288 10 826 21 962 18 36 VRC4 Gunnar 0.0879 0.0015 1.09 0.03 0.090 0.001 1.00 1380 34 553 5 747 14 60 VRC5 Gunnar 0.0855 0.0002 1.74 0.07 0.147 0.006 1.00 1327 4 887 32 1023 25 33 VRC7 Gunnar 0.0850 0.0002 1.50 0.06 0.128 0.006 1.00 1316 5 778 32 932 26 41 VRC8 Gunnar 0.0851 0.0003 1.31 0.07 0.112 0.006 1.00 1318 7 683 33 851 29 48 VRC9 Gunnar 0.0848 0.0002 1.42 0.08 0.121 0.007 1.00 1312 4 738 42 897 35 44 VRC10 Gunnar 0.0860 0.0002 1.71 0.05 0.144 0.004 1.00 1338 4 869 23 1012 18 35 VRC11 Gunnar 0.0865 0.0003 1.77 0.07 0.148 0.006 0.99 1349 8 891 31 1033 25 34 VRC12 Gunnar 0.0857 0.0006 1.30 0.07 0.110 0.006 0.99 1332 14 673 34 846 30 49 VRC13 Gunnar 0.0854 0.0004 1.47 0.09 0.125 0.008 1.00 1325 9 757 44 916 36 43 VRC14 Gunnar 0.0864 0.0002 2.08 0.07 0.174 0.006 1.00 1348 5 1036 33 1142 23 23 VRC15 Gunnar 0.0867 0.0002 2.04 0.07 0.171 0.006 1.00 1354 5 1017 30 1130 22 25 VRC16 Gunnar 0.087 0.001 2.13 0.09 0.178 0.008 0.96 1356 24 1054 42 1157 31 22 Volcanic type-uraninite 6120a Ace Fay 0.1073 0.0002 2.98 0.12 0.202 0.008 1.00 1754 4 1184 44 1403 30 32 6120b Ace Fay 0.1085 0.0002 3.43 0.19 0.229 0.012 0.89 1774 4 1331 61 1511 43 25 6120c Ace Fay 0.1078 0.0005 4.45 0.31 0.299 0.020 1.00 1763 9 1688 101 1722 58 4 6120e Ace Fay 0.1081 0.0003 3.41 0.09 0.229 0.006 1.00 1768 5 1329 33 1507 21 25 6120f Ace Fay 0.1072 0.0005 3.70 0.19 0.250 0.012 1.00 1753 8 1441 63 1572 42 18 6120g Ace Fay 0.1065 0.0001 3.36 0.11 0.229 0.007 1.00 1740 2 1328 38 1495 25 24 6120i Ace Fay 0.1080 0.0004 3.51 0.10 0.235 0.007 0.99 1766 6 1363 36 1529 24 23 6120k Ace Fay 0.1075 0.0005 3.27 0.13 0.221 0.009 0.99 1758 9 1285 48 1474 30 27 6120l Ace Fay 0.1067 0.0003 3.43 0.29 0.233 0.019 1.00 1743 5 1352 101 1512 67 22 6120m Ace Fay 0.1085 0.0003 3.69 0.25 0.246 0.017 1.00 1775 4 1420 85 1569 55 20 6120n Ace Fay 0.1054 0.0005 2.83 0.17 0.195 0.012 1.00 1722 9 1146 66 1363 45 33 6120q Ace Fay 0.1100 0.0023 2.99 0.34 0.208 0.033 0.52 1800 37 1218 178 1405 86 32 6139a Gunnar 0.1097 0.0001 4.74 0.28 0.316 0.019 1.00 1794 2 1768 91 1774 49 1 6139b Gunnar 0.1096 0.0001 4.53 0.20 0.302 0.014 1.00 1792 2 1702 69 1737 38 5 6139d Gunnar 0.1094 0.0002 4.55 0.29 0.304 0.019 1.00 1789 4 1711 94 1740 53 4 242
Page 1 and 2:
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
Page 209 and 210: ed-bed strata and associated volcan
Page 211 and 212: character of the fluid that formed
Page 213 and 214: 5.2.1.2. Metamorphic-related uraniu
Page 215 and 216: during brecciation or reduction as
Page 217 and 218: 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: Sample Deposit 207 Pb/ 206 Pb ±2σ
Page 263 and 264: 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 and 270: Sample ΣREE TLREE THREE LREE/HREE
Page 271 and 272: SAMPLE ID. SiO 2 TiO 2 AL 2O 3 CR 2
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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