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

Corrected ratios Apparent ages ( ±1σ, Ma)** Sample Deposit 206 Pb/ 204 Pb 207 Pb/ 204 Pb 207 Pb/ 206 Pb ±2σ 206 Pb/ 238 U ±2σ 207 Pb/ 235 U ±2σ R‡ 207 Pb/ 206 Pb ± 206 Pb/ 238 U ± 207 Pb/ 235 U ± Disc‡ Cor29_205B Coronation Hill 4414 402 0.0916 - 0.1682 - 2.1244 - - 1459 39 1002 106 1157 83 - Cor29_205Ha Coronation Hill 4541 385 0.0848 - 0.0830 - 0.9709 - - 1311 23 514 39 689 39 - Cor29_205Ia Coronation Hill 1120 103 0.0919 - 0.1014 - 1.2850 - - 1465 25 623 50 839 50 - Cor29_205Ib Coronation Hill 1183 114 0.0966 - 0.1388 - 1.8489 - - 1560 17 838 33 1063 28 - Cor29_205I Coronation Hill 1339 123 0.0930 - 0.1283 - 1.6634 - - 1487 52 778 136 995 166 - Cor29_205Kb Coronation Hill 2253 181 0.0803 - 0.1119 - 1.2385 - - 1204 16 684 31 818 29 - Cor29_205L Coronation Hill 1248 127 0.1017 - 0.1643 - 2.3097 - - 1655 50 981 95 1215 93 - Cor29_201.6Ac Coronation Hill 1684 136 0.0807 - 0.1046 - 1.1679 - - 1214 58 641 81 786 89 - Cor29_205O Coronation Hill 1270 116 0.0913 - 0.1112 - 1.4001 - - 1452 44 678 52 889 53 - Cor29_201.6Aa Coronation Hill 1096 107 0.0975 - 0.1284 - 1.7258 - - 1577 53 779 59 1018 53 - Cor29_201.6Ab Coronation Hill 1322 119 0.0902 - 0.1093 - 1.3615 - - 1531 54 668 67 872 73 - Cor29_201.6Ad Coronation Hill 4108 293 0.0702 - 0.0793 - 0.7687 - - 935 86 492 29 580 44 - Cor29_201.6Bbc Coronation Hill 1508 127 0.0842 - 0.1182 - 1.3736 - - 1298 35 720 27 878 27 - Cor29_201.6aa Coronation Hill 1446 125 0.0864 - 0.0959 - 1.1432 - - 1348 16 790 13 774 12 - Cor29_201.6abc Coronation Hill 1234 112 0.0911 - 0.1089 - 1.3692 - - 1449 33 666 44 876 48 - Cor29_201.6D Coronation Hill 1086 114 0.1053 - 0.1967 - 2.8569 - - 1719 31 1157 44 1371 43 - Cor29_201.6Ga Coronation Hill 2825 214 0.0756 - 0.1012 - 1.0564 - - 1085 36 622 52 732 53 - Cor29_201.6Gb Coronation Hill 2121 171 0.0808 - 0.1180 - 1.3147 - - 1216 26 719 60 842 54 - El Sherana 1a El Sherana - - 0.0924 - 0.0564 - 0.8206 - - 1500 - 354 - 610 - - El Sherana 1b El Sherana - - 0.0935 - 0.0650 - 0.8695 - - 1498 - 406 - 636 - - El Sherana 1c El Sherana - - 0.0987 - 0.0675 - 0.9866 - - 1600 - 421 - 698 - - El Sherana 2a El Sherana - - 0.0999 - 0.0700 - 1.0588 - - 1625 - 436 - 756 - - El Sherana 2b El Sherana - - 0.0768 - 0.0571 - 0.6513 - - 1116 - 358 - 510 - - El Sherana 3b El Sherana - - 0.1105 - 0.0626 - 1.1142 - - 1810 - 392 - 762 - - El Sherana 4a El Sherana - - 0.0907 - 0.0622 - 0.9018 - - 1441 - 388 - 654 - - El Sherana 4b El Sherana - - 0.0793 - 0.0560 - 0.7712 - - 1180 - 352 - 582 - - El Sherana 4c El Sherana - - 0.1024 - 0.0826 - 1.4012 - - 1665 - 512 - 890 - - El Sherana 5c El Sherana - - 0.0938 - 0.2121 - 3.1739 - - 1505 - 1240 - 1452 - - El Sherana 5d El Sherana - - 0.0883 - 0.0585 - 0.8515 - - 1388 - 366 - 626 - - El Sherana 6b El Sherana - - 0.1010 - 0.0631 - 0.9921 - - 1640 - 395 - 700 - - El Sherana 7a El Sherana - - 0.0942 - 0.0728 - 1.0060 - - 1515 - 452 - 708 - - El Sherana 7b El Sherana - - 0.0892 - 0.0655 - 0.8338 - - 1408 - 409 - 616 - - El Sherana 2 El Sherana 1739 - 0.0916 0.0031 0.0705 0.0033 0.8054 0.0167 0.176 1460 62 439 20 600 9 70 El Sherana 3 El Sherana 1439 - 0.0946 0.0032 0.0724 0.0038 0.8861 0.0181 0.103 1520 63 451 23 644 10 70 El Sherana 4 El Sherana 1356 - 0.0959 0.0034 0.0747 0.0030 0.9551 0.0183 0.114 1545 66 464 18 681 9 70 267
Corrected ratios Apparent ages ( ±1σ, Ma)** Sample Deposit 206 Pb/ 204 Pb 207 Pb/ 204 Pb 207 Pb/ 206 Pb ±2σ 206 Pb/ 238 U ±2σ 207 Pb/ 235 U ±2σ R‡ 207 Pb/ 206 Pb ± 206 Pb/ 238 U ± 207 Pb/ 235 U ± Disc‡ El Sherana 5 El Sherana 3605 - 0.0780 0.0023 0.0591 0.0021 0.6221 0.0110 0.134 1146 58 370 13 491 7 68 El Sherana 7 El Sherana 1767 - 0.0935 0.0041 0.0706 0.0040 0.8149 0.0195 0.020 1498 80 440 24 605 11 71 El Sherana 8 El Sherana 3975 - 0.0885 0.0043 0.0656 0.0043 0.7161 0.0155 0.230 1394 90 410 26 548 9 71 El Sherana 9 El Sherana 1251 - 0.0989 0.0048 0.0893 0.0078 1.1072 0.0697 0.632 1604 87 551 46 757 33 66 El Sherana 11 El Sherana 1944 - 0.1099 0.0068 0.0715 0.0052 0.7964 0.0207 0.035 1798 109 445 31 595 12 75 El Sherana 12 El Sherana 1526 - 0.1116 0.0057 0.0754 0.0054 0.9074 0.0193 0.033 1825 90 469 32 656 10 74 El Sherana 13 El Sherana 1476 - 0.0884 0.0022 0.0735 0.0021 0.8950 0.0135 0.204 1392 48 457 12 649 7 67 El Sherana 14 El Sherana 1707 - 0.0843 0.0022 0.0657 0.0018 0.7582 0.0109 0.026 1300 50 410 11 573 6 68 El Sherana 17 El Sherana 1087 - 0.0882 0.0015 0.0934 0.0044 1.1724 0.0593 0.924 1387 33 575 26 788 27 59 El Sherana 18 El Sherana 1257 - 0.0920 0.0015 0.1394 0.0114 1.7701 0.1447 0.941 1467 32 841 64 1035 52 43 El Sherana 19 El Sherana 1388 - 0.0886 0.0020 0.0808 0.0045 0.9891 0.0550 0.897 1395 42 501 27 698 28 64 268
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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
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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
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 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: 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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