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

Valenta, R.K., 1989. Structure and mineralization in the South Alligator Valley, NT Bureau of Mineral Resources Valenta, R.K., 1990. Structural setting of unconformity-related U Au platinoid mineralization in the South Alligator Valley, NT In: Gondwana and Resources Geologl Society of Australia; Abstracts No 25: 173 Valenta, R.K., 1991. Structural controls on mineralization of the Coronation Hill deposit and surrounding area: Australia Bureau of Mineral Resources: Geology and Geophysics Record1991/107, 186 Walpole, B.P, Crohn P.W, Dunn P.R, Randal M.A., 1968. Geology of the Katherine– Darwin region, Northern Territory Bureau of Mineral Resources, Australia, Bulletin 82 Warren, R.G. and Kamprad, J.L., 1990. Mineralogical petrographic and geochemical studies in the South Alligator region Pine Creek inlier, NT: Australia Bureau of Mineral Resources, Geology and Geophysics Record1 990/54, 113 Wasserburg, G. J. and Hayden, R. J., 1955. Ar 40 :K 40 dating. Geochimica et Cosmochimica Acta 7, 51–60. Wenner, D.B., and Taylor, H.P., Jr., 1971. Temperature of serpentinization of ultramafic rocks based on O18/O16 fractionation between coexisting serpentinite and magnesite: Contributions to Mineralogy and Petrology, v. 32, p. 165–185. Whitmeyer, S. J. and Karlstrom K. E., 2007. Tectonic model for the Proterozoic growth of North America. Geosphere, 3, 220–259. Wiedenbeck, M., Allé P., Corfu, F., Griffin, W.L, Meier, M., Oberli, F., von Quadt, A., Roddick, J.C., Spiegel, W., 1995. Three natural Zircon standards for U-Th-Pb, Lu-Hf, trace element and REE analysis: Geostandards Newsletter, v. 19, p. 1-23. Wilde, A.R, Mernagh T.P, Bloom M.S, Hoffmann C.F., 1989. Fluid inclusion evidence on the origin of some Australian Unconformity-related Uranium Deposits: Economic Geology, 84, 1627- 1642 Wilde, A.R., 1992. Unconformity-related uranium-gold deposits on northern Australia; resources, genesis and exploration IAEA-Tecdoc, 650, 49-58 Williams, H., Hoffman, P.F., Lewry, J.F., Monger, J.W.H., Rivers, T., 1991. Anatomy of North America: thematic portrayals of the continent. Tectonophysics 187, 117– 134. Wilson, M.R., and Kyser, K., 1987. Stable isotopes geochemistry of alteration associated with the Key Lake U deposit, Canada: Economic Geology, v. 82, p. 1540–1557. 237
Wingate, M.T.D, Pisarevsky SA, Evans D.A.D., 2002. Rodinia connections between Australia and Laurentia: no SWEAT, no AUSWUS Terra Nova 14:121–128 Wingate, M.T.D and Giddings J.W., 2000. Age and paleomagnetism of the Mundine Well dyke swarm, Western Australia: implications for an Australia–Laurentia connection at 755 Ma Precamb Res100:335–357 Wray, E.M, Ayres, D.E, Ibrahim H., 1985. Geology of the Mid-west uranium deposit northern Saskatchewan Canadian Institute of Mining and Metallurgy, 32, 54-66 Wyborn, L.A.I, Valenta R, Needham R.S, Jagodzinski E.A, Whitaker A, Morse M.P., 1990. A review of the geological, geophysical and geochemical data of the Kakadu Conservation Zone: a basis for the assessing resource potential Report by the Bureau of Mineral Resources to the Resource Assessment Commission, Inquiry on the Kakadu Conservation Zone Wyborn, L.A.I, Valenta, R.K, Jagodzinski, E.A, Whitaker A, Morse M.P, Needham R.S., 1991. A review of the geological, geophysical and geochemical data of the Kakaduc conservation zone basis for estimating resource potential: Australia Bureau of Mineral Resources Geology and Geophysics Report to Resource Assessment Commission 2, 90 p Wyborn, L.A.I., 1992. Au-Pt-Pd-U mineralization in the Coronation Hill-EL Sherana region NT: BMR Research Newsletter, 16, 1-3 Wyborn, L.A.I, Budd A., Bastrikova, I., 1997. The metallogenic potential of Australian Proterozoic Granites Final Meeting Report Australian Geological Survey Organisation, Canberra Yeo, G.M., 2005. Stratigraphy and metallogeny of the Paleoproterozoic Thluicho Lake Group, northwestern Saskatchewan (NTS 74N/11). In: Summary of Investigations 2005, Volume 2, Saskatchewan Geological Survey, Sask. Industry Resources, Misc. Rep. 2005-4.2, Paper A-2, p. 20. 238
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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
Page 205 and 206: deposits is related to fluids deriv
Page 207 and 208: 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: Proceedings Darwin Conference 1984
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 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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