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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‡ 6139e Gunnar 0.1085 0.0004 4.0 0.4 0.271 0.028 1.00 1775 7 1545 140 1639 84 13 6139f Gunnar 0.1094 0.0001 4.40 0.32 0.294 0.021 1.00 1789 2 1662 106 1713 60 7 6139g Gunnar 0.1100 0.0001 4.52 0.23 0.300 0.015 1.00 1799 2 1692 77 1734 43 6 6139h Gunnar 0.1095 0.0002 4.2 0.4 0.281 0.024 1.00 1791 3 1595 121 1676 70 11 6139i Gunnar 0.1094 0.0003 4.30 0.22 0.287 0.016 1.00 1790 5 1627 79 1693 43 9 6139j Gunnar 0.1102 0.0001 4.56 0.26 0.302 0.017 1.00 1803 1 1703 85 1742 47 6 6139k Gunnar 0.1091 0.0002 4.52 0.17 0.303 0.011 1.00 1784 3 1707 56 1735 31 4 6139l Gunnar 0.1093 0.0002 4.51 0.32 0.301 0.021 1.00 1787 3 1698 106 1732 60 5 6139m Gunnar 0.1101 0.0001 3.96 0.28 0.264 0.019 1.00 1800 2 1508 94 1626 57 16 6139n Gunnar 0.1104 0.0003 4.0 0.4 0.268 0.025 1.00 1806 5 1529 127 1641 74 15 6139o Gunnar 0.1101 0.0002 4.0 0.4 0.268 0.024 1.00 1801 4 1529 121 1639 71 15 6139p Gunnar 0.1098 0.0002 3.71 0.29 0.247 0.019 1.00 1797 4 1422 101 1573 62 21 6139q Gunnar 0.1098 0.0003 3.66 0.29 0.244 0.020 1.00 1795 4 1406 102 1562 64 22 6139r Gunnar 0.1108 0.0009 4.0 0.3 0.268 0.019 0.99 1812 15 1529 94 1641 53 16 6139s Gunnar 0.1080 0.0005 3.3 0.5 0.226 0.033 1.00 1766 8 1315 171 1490 111 26 6139t Gunnar 0.1106 0.0002 4.21 0.38 0.279 0.025 1.00 1809 4 1584 125 1677 73 12 6139u Gunnar 0.1099 0.0002 4.14 0.42 0.276 0.028 1.00 1797 4 1569 143 1662 83 13 6139v Gunnar 0.1084 0.0005 3.56 0.33 0.241 0.023 1.00 1773 8 1390 117 1541 74 22 6139vna Gunnar 0.1097 0.0001 4.63 0.24 0.309 0.016 1.00 1794 2 1734 79 1755 44 3 EA3011 Eagle-Ace 0.0524 0.0008 0.25 0.01 0.035 0.002 0.96 303 36 222 13 229 12 27 EA3011a Eagle-Ace 0.0523 0.0006 0.23 0.03 0.032 0.004 0.99 300 28 202 25 210 24 33 EA3011b Eagle-Ace 0.0536 0.0003 0.26 0.01 0.035 0.002 1.00 354 11 221 11 232 10 38 EA3011c Eagle-Ace 0.0537 0.0008 0.23 0.02 0.031 0.003 0.99 360 35 198 18 211 20 45 EA3011d Eagle-Ace 0.0519 0.0010 0.21 0.02 0.029 0.002 0.97 282 43 186 13 193 14 34 EA3011e Eagle-Ace 0.0531 0.0004 0.27 0.01 0.037 0.002 0.99 334 17 232 10 241 10 31 EA3011f Eagle-Ace 0.0535 0.0003 0.26 0.02 0.036 0.002 1.00 348 14 225 15 236 14 35 EA3011g Eagle-Ace 0.0516 0.0009 0.18 0.01 0.025 0.001 0.97 269 40 158 9 166 10 41 EA3011h Eagle-Ace 0.0514 0.0013 0.21 0.02 0.030 0.003 0.98 259 59 188 20 193 21 27 EA3011j Eagle-Ace 0.0525 0.0007 0.20 0.02 0.027 0.002 0.99 306 31 172 15 181 14 44 EA3011k Eagle-Ace 0.0539 0.0005 0.29 0.02 0.039 0.003 0.99 369 20 247 17 259 16 33 EA3011l Eagle-Ace 0.0540 0.0002 0.30 0.01 0.040 0.001 0.99 373 10 254 8 266 8 32 EA3011n Eagle-Ace 0.0529 0.0006 0.20 0.02 0.028 0.002 0.99 323 26 176 13 186 13 46 EA3011o Eagle-Ace 0.0518 0.0005 0.19 0.02 0.027 0.003 1.00 278 24 173 18 180 17 38 EA3011t Eagle-Ace 0.0552 0.0005 0.31 0.01 0.040 0.001 0.96 419 21 254 7 271 8 39 Athabasca type-uraninite 243
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‡ 2202p2 Martin Lake 0.0896 0.0003 2.33 0.16 0.190 0.013 1.00 1416 7 1123 68 1223 48 21 2202p2-1 Martin Lake 0.0859 0.0004 1.80 0.10 0.153 0.009 1.00 1336 8 920 50 1047 36 31 2202p2-2 Martin Lake 0.0890 0.0008 2.20 0.14 0.180 0.013 1.00 1404 16 1069 70 1180 45 24 2202p2-3 Martin Lake 0.0863 0.0002 2.0 0.2 0.171 0.013 1.00 1345 4 1018 73 1122 52 24 2202p2-4 Martin Lake 0.0931 0.0002 2.05 0.08 0.161 0.006 1.00 1489 4 963 36 1133 28 35 2202p2-5 Martin Lake 0.0841 0.0002 1.82 0.16 0.159 0.014 1.00 1295 4 949 77 1054 58 27 2202p2-6 Martin Lake 0.0882 0.0003 2.09 0.06 0.173 0.005 0.99 1388 6 1029 27 1145 19 26 2202p2-7 Martin Lake 0.0922 0.0003 2.21 0.13 0.175 0.010 1.00 1471 5 1039 58 1183 42 29 2202p2-8 Martin Lake 0.0891 0.0004 1.86 0.11 0.153 0.010 1.00 1407 8 915 54 1067 40 35 2202p2-9 Martin Lake 0.0901 0.0002 2.34 0.15 0.190 0.012 1.00 1427 4 1119 67 1223 46 22 2202p2-11 Martin Lake 0.0901 0.0004 2.26 0.15 0.183 0.012 1.00 1429 9 1083 67 1198 45 24 2202p2-12 Martin Lake 0.0906 0.0006 2.1 0.2 0.167 0.012 1.00 1439 13 997 66 1141 53 31 2202p2-13 Martin Lake 0.0890 0.0001 2.0 0.1 0.168 0.012 1.00 1404 3 999 64 1129 47 29 2202p2-14 Martin Lake 0.0866 0.0004 2.0 0.1 0.170 0.011 1.00 1351 9 1012 61 1120 44 25 2202p2-15 Martin Lake 0.0890 0.0007 2.21 0.16 0.181 0.012 1.00 1404 14 1075 65 1184 50 23 2202p2-16 Martin Lake 0.0857 0.0005 2.0 0.2 0.170 0.016 1.00 1332 10 1012 88 1114 67 24 2202p2-17 Martin Lake 0.0873 0.0005 2.1 0.1 0.178 0.013 1.00 1367 11 1054 69 1156 48 23 2202p2-18 Martin Lake 0.0914 0.0006 2.43 0.19 0.194 0.015 1.00 1456 13 1144 81 1252 57 21 2202p2-19 Martin Lake 0.0901 0.0002 2.25 0.11 0.182 0.009 1.00 1427 5 1080 51 1196 35 24 2202p2-21 Martin Lake 0.0998 0.0002 3.1 0.2 0.229 0.017 1.00 1620 4 1327 91 1438 58 18 2202p2-22 Martin Lake 0.0850 0.0003 1.74 0.11 0.149 0.010 1.00 1316 6 898 54 1023 40 32 2202p2-23 Martin Lake 0.0983 0.0003 2.99 0.22 0.222 0.016 1.00 1593 5 1295 85 1406 56 19 2202p2-24 Martin Lake 0.0855 0.0005 1.98 0.17 0.169 0.014 1.00 1326 12 1006 75 1108 58 24 2202p2-25 Martin Lake 0.0993 0.0006 3.0 0.2 0.224 0.013 1.00 1611 12 1302 69 1419 43 19 2202p2-26 Martin Lake 0.0894 0.0001 2.0 0.1 0.167 0.012 1.00 1413 2 993 64 1128 48 30 2202p2-27 Martin Lake 0.0952 0.0012 2.35 0.11 0.180 0.010 0.98 1532 24 1068 56 1226 34 30 2202p2-28 Martin Lake 0.0969 0.0008 2.85 0.10 0.215 0.008 0.98 1565 15 1255 44 1368 26 20 2202p2-29 Martin Lake 0.0934 0.0023 2.64 0.36 0.206 0.023 1.00 1496 47 1208 123 1312 100 19 2202p2-31 Martin Lake 0.0875 0.0005 1.76 0.12 0.147 0.010 1.00 1371 11 882 55 1030 45 36 2202p2-32 Martin Lake 0.0872 0.0001 1.59 0.08 0.134 0.006 1.00 1364 2 808 37 968 30 41 2202p2-33 Martin Lake 0.0870 0.0003 2.0 0.1 0.170 0.010 1.00 1361 6 1013 53 1124 39 26 2202p1 Martin Lake 0.0880 0.0004 2.1 0.2 0.171 0.014 1.00 1383 8 1019 75 1136 52 26 2202p1-2 Martin Lake 0.0881 0.0002 1.69 0.06 0.140 0.005 1.00 1384 5 845 29 1004 24 39 2202p1-33 Martin Lake 0.0906 0.0002 1.88 0.08 0.151 0.006 1.00 1438 5 908 36 1073 27 37 2202p1-34 Martin Lake 0.0851 0.0002 1.48 0.09 0.127 0.008 1.00 1317 5 772 45 923 38 41 2202p1-35 Martin Lake 0.0884 0.0005 1.52 0.06 0.126 0.006 1.00 1392 10 764 33 940 25 45 244
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
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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 and 260: Sample Deposit 207 Pb/ 206 Pb ±2σ
Page 261: 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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