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

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 ) ± LATE VEINS (Cl10) 6134_Pt2_Cl1 47.77 0.08 25.89 -0.02 11.16 0.01 2.21 0.69 0.15 5.90 0.13 0.08 4.25 -0.05 -0.02 99.08 161 6134_Pt2_Cl2 48.55 0.03 29.89 -0.02 4.33 0.01 3.75 0.20 0.27 7.02 - 0.07 4.45 -0.01 -0.02 98.92 179 6134_Pt3_Cl1 51.23 0.02 29.24 0.02 4.28 0.05 2.12 0.24 0.26 8.09 0.02 0.12 0.07 4.47 -0.05 -0.02 100.36 137 6134_Pt4_Cl1 48.47 0.02 23.70 -0.02 8.70 0.05 4.44 0.40 0.18 6.48 0.23 0.15 4.15 -0.03 -0.10 97.27 136 6134_Pt4_Cl2 48.14 0.20 21.84 0.01 10.41 0.03 2.42 0.75 0.18 6.20 0.30 0.03 4.01 -0.13 -0.01 94.99 108 AVG 48.83 0.07 26.11 -0.01 7.78 0.03 2.99 0.45 0.21 6.74 0.15 0.08 4.27 -0.05 -0.03 98.12 144 255
APPENDIX E Electron microprobe data and temperatures of various chlorite phases from deposits of the Beaverlodge area SAMPLE Si 4+ AL 4+ Total AL 6+ Ti 4+ Cr 3+ Fe 2+ Mn 2+ Mg 2+ Total Ca 2+ Na + K + Total F - CL - H + Total O 2- ∑Cat ∑ions RETROGRADE LOWER GREENSCHIST CHLORITE (Cl1) Cl48-7 3.20 0.81 4.00 1.87 0.00 0.01 1.75 0.01 3.01 6.64 0.03 0.00 0.00 0.04 0.19 0.00 7.81 8.00 17.81 9.87 18.00 197 Cl48-3 3.15 0.85 4.00 1.93 0.00 0.00 1.68 0.01 3.08 6.71 0.02 0.00 0.00 0.02 0.11 0.00 7.89 8.00 17.89 9.88 18.00 211 Cl48-5 3.16 0.84 4.00 1.96 0.00 0.00 1.65 0.01 3.07 6.69 0.02 0.00 0.00 0.02 0.15 0.00 7.85 8.00 17.85 9.87 18.00 210 Cl48 3.24 0.76 4.00 1.71 0.00 0.00 1.73 0.01 3.20 6.65 0.01 0.01 0.00 0.02 0.17 0.00 7.83 8.00 17.83 9.91 18.00 183 Cl48-2-1 3.21 0.79 4.00 1.77 0.00 0.00 1.76 0.01 3.15 6.69 0.00 0.00 0.00 0.00 0.14 0.00 7.86 8.00 17.86 9.91 18.00 192 AVG 3.19 0.81 4.00 1.85 0.00 0.00 1.72 0.01 3.10 6.68 0.02 0.00 0.00 0.02 0.15 0.00 7.85 8.00 17.85 9.89 18.00 199 14 EARLY TENSIONAL VEINS URANIUM MINERALIZATION (Cl4) 6122_pt1-2- 2.92 1.08 4.00 2.96 0.00 0.00 0.99 0.01 2.65 6.61 0.03 0.09 0.01 0.13 0.05 0.02 7.93 8.00 17.93 9.65 18.00 287 Cl 6122_pt2-1 2.82 1.18 4.00 2.68 0.00 0.01 1.33 0.02 2.75 6.78 0.21 0.04 0.01 0.26 0.16 0.04 7.80 8.00 17.80 9.86 18.00 318 6122_pt3-2 2.79 1.21 4.00 2.71 0.00 0.01 1.41 0.01 2.89 7.01 0.04 0.02 0.00 0.06 0.05 0.01 7.94 8.00 17.94 9.86 18.00 329 6122_pt4-1 2.79 1.21 4.00 2.51 0.00 0.00 1.05 0.02 2.30 5.88 1.20 0.09 0.08 1.38 0.30 0.02 7.68 8.00 17.68 10.04 18.00 329 6122_pt4-2 2.91 1.09 4.00 2.47 0.00 0.01 1.35 0.01 2.50 6.34 0.52 0.04 0.10 0.66 0.11 0.03 7.87 8.00 17.87 9.91 18.00 288 AVG 2.85 1.16 4.00 2.66 0.00 0.00 1.22 0.01 2.62 6.52 0.40 0.06 0.04 0.50 0.14 0.02 7.84 8.00 17.84 9.87 18.00 310 21 METASOMATIC -TYPE URANIUM MINERALIZATION (Cl5 Cl6) Early chlorite associated with the metasomatic type uranium mineralization (Cl5) Gn21-1 2.84 1.16 4.00 2.42 0.01 0.00 1.81 0.03 2.83 7.10 0.00 0.01 0.00 0.01 0.10 0.00 7.90 8.00 17.90 9.95 18.00 312 Gn21-2 2.84 1.16 4.00 2.38 0.00 0.00 1.80 0.04 2.91 7.12 0.00 0.00 0.00 0.00 0.08 0.00 7.93 8.00 17.93 9.97 18.00 312 Gn21-4 2.81 1.19 4.00 2.45 0.01 0.00 1.85 0.03 2.80 7.15 0.00 0.00 0.00 0.00 0.06 0.00 7.94 8.00 17.94 9.96 18.00 321 Gn21-5 2.85 1.15 4.00 2.42 0.00 0.00 1.80 0.04 2.83 7.09 0.00 0.00 0.00 0.00 0.09 0.00 7.91 8.00 17.91 9.94 18.00 310 Gn21-6 2.82 1.18 4.00 2.40 0.01 0.00 1.82 0.03 2.91 7.16 0.00 0.01 0.00 0.01 0.10 0.00 7.90 8.00 17.90 9.98 18.00 319 AVG 2.83 1.17 4.00 2.41 0.01 0.00 1.82 0.03 2.86 7.12 0.00 0.00 0.00 0.01 0.09 0.00 7.92 8.00 17.92 9.96 18.00 315 6 Late chlorite vein injected during late stage of the metasomatic process (Cl6) GN03A-1 2.93 1.07 4.00 2.36 0.00 0.00 1.36 0.03 3.21 6.95 0.00 0.00 0.00 0.01 0.11 0.00 7.89 8.00 17.89 9.89 18.00 282 GN03A-2 2.93 1.07 4.00 2.29 0.00 0.01 1.33 0.02 3.33 6.98 0.00 0.00 0.00 0.00 0.10 0.00 7.90 8.00 17.90 9.92 18.00 282 GN03A-3 2.96 1.04 4.00 2.26 0.00 0.00 1.19 0.01 3.49 6.95 0.00 0.00 0.00 0.00 0.13 0.00 7.87 8.00 17.87 9.91 18.00 273 GN03A-4 2.93 1.07 4.00 2.28 0.00 0.00 1.15 0.02 3.56 7.00 0.00 0.00 0.00 0.01 0.12 0.00 7.88 8.00 17.88 9.93 18.00 284 GN03A-5 2.97 1.03 4.00 2.29 0.00 0.01 1.32 0.02 3.26 6.91 0.00 0.00 0.00 0.01 0.12 0.00 7.88 8.00 17.88 9.88 18.00 270 AVG 2.94 1.06 4.00 2.29 0.00 0.00 1.27 0.02 3.37 6.96 0.00 0.00 0.00 0.01 0.11 0.00 7.89 8.00 17.89 9.91 18.00 278 7 Variably altered early chlorite associated with the metasomatic type uranium mineralization Temp ( o ) ± 256
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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
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 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: SAMPLE ID. SiO 2 TiO 2 AL 2O 3 CR 2
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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