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

Molnar, P. and Atwater. T., 1978. Interarc spreading and Cordilleran tectonics as alternates related to the age of subducted oceanic lithosphere: Earth and Planetary Science Letters 41, 330-340. Moores, E.M., 1991. The Southwest U.S.–East Antarctica (SWEAT) connection: A hypothesis. Geology 19, 425–428. Morelli, R., Ashton, K., Ansdell, K., 2001. A geochemical investigation of the Martin Group igneous rocks, Beaverlodge Domain, northwestern Saskatchewan. In Summary of Investigations 2001, Saskatchewan Geological Survey, Saskatchewan Energy Mines v. 2, Miscellaneous Report 2001-4, 64-75. Morelli, R.M., Hartlaub, R.P., Ashton, K.E., Ansdell, K.M., 2009. Evidence for enrichment of subcontinental lithospheric mantle from Paleoproterozoic intracratonic magmas: geochemistry and U–Pb geochronology of Martin Group igneous rocks, western Rae craton, Canada. Precambrian Research 175, 1-15. Morton, R. D. and Sassano, G. P., 1972. Structural studies on the uranium deposit of the Fay Mine, Eldorado, northwest Saskatchewan. Canada Journal of Earth Science 9, 803-823. Mountain, B.W. and Wood S.A., 1988a. Solubility and transport of platinum-group elements in hydrothermal solutions: Thermodynamic and physical chemical constraints; in Geo-Platinum 87, Prichard, HM, Potts, PJ, Bowles, JFW and Cribb, SJ eds., Elsevier Science Publishing Ltd, Barking, Essex, UK, 57-82 Mountain, B.W. and Wood S.A., 1988b. Chemical controls on the solubility, transport, and deposition of platinum and palladium in hydrothermal solutions: A thermodynamic approach; Economic Geology 83, 492-510 Müller, R.D, Gaina C, Clarke S., 2000. Seafloor spreading around Australia, In: J Veevers ed., Billion-year earth history of Australia and neighbours in Gondwanaland – BYEHA 18-28 Myers, J.S, Shaw R.D, Tyler I.M., 1996. Tectonic evolution of Proterozoic Australia Tectonics 15, 1431 – 1446 Needham, R.S, Crick I.H, Stuart-Smith P.G., 1980. Regional geology of the Pine Creek Geosyncline: in Ferguson J and Goleby AB editors. Uranium in the Pine Creek Geosyncline International Atomic Energy Agency, Vienna, 1-22 Needham, R.S., 1982. Cahill, Northern Territory 1:100 000 geological map series commentary, 5472 Bureau of Mineral Resources, Australia Needham, R.S. and Stuart-Smith P.G., 1984. The relationship between mineralisation and depositional environment in the Early Proterozoic metasediments of the Pine 229
Creek Geosyncline: in ‘The mineral potential of northern Australia and changing concepts of development’ Australasian Institute of Mining and Metallurgy, 1984 Annual Conference, Darwin, Northern Territory, Australia, August 1984 Australasian Institute of Mining and Metallurgy, Conference Series 13, 201–211 Needham, R.S. and Stuart-Smith P.G., 1985. Stratigraphy and tectonics of the Early to Middle Proterozoic transition, Katherine-E1 Sherana area, NT Aust J Earth Sci, 32: 219-230 Needham, R.S. and Stuart-Smith P.G., 1986. Coronation Hill U-Au mine, South Alligator Valley, Northern Territory: an epigenetic sandstone-type deposit hosted by debris-flow conglomerate BMR Journal of Australian Geology and Geophysics 10, 121-131 Needham, R.S., 1987. A review of mineralisation in the South Alligator Conservation Zone Bureau of Mineral Resources, Australia, Record 1987/52 Needham, R.S., 1987. Geology of the Alligator Rivers Uranium Field, northern Territory Australian Government Publishing Service, Canberra Needham, R.S, Stuart-Smith P.G, Page R.W., 1988. Tectonic evolution of the Pine Creek Inlier, Northern Territory Precambrian Research 40/41, 543–564 Needham, R.S., 1988a. Geology of the Alligator Rivers Uranium Field, Northern Territory Bureau of Mineral Resources, Australia, Bulletin 224 Needham, R.S., 1988b. Geology and mineralization of the South Alligator Valley Mineral Field 1:75 000 scale map. Bureau of Mineral Resources, Australia Needham, R.S. and DeRoss G.J., 1990. Pine Creek Inlier – regional geology and mineralisation: in Hughes FE editor. ‘Geology and mineral deposits of Australia and Papua New Guinea’ Australasian Institute of Mining and Metallurgy, Monograph 14, 727–737 Neumann, N.L. and Fraser G.L., 2007. Geochronological synthesis and Time-Space plots for Proterozoic Australia Geoscience Australia Record 2007/06 O’Hanley, D.S., Kyser, T.K., Sibbald, T.I.I., 1991. The Age of the Mine Granites, Goldfields Area. In Summary of Investigations, 1991; Saskatchewan Geological Survey; Saskatchewan Energy and Mines, Miscellaneous Report 91-4. Ohmoto, H. and Rye R. O., 1979. Isotopes of sulfur and carbon: In Geochemistry of Hydrothermal Ore Deposits, 2nd ed. (ed. H. L. Barnes), p. 509–567. Ojakangas, R.W., 1979. Sedimentation of the basal Kombolgie Formation Upper Precambrian-Carpentarian. Northern Territory, Australia: Possible significance in 230
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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
Page 197 and 198: Figure 4.15. Conceptual genetic mod
Page 199 and 200: of the Koolpin Formation, while dep
Page 201 and 202: at ca. 1820 Ma, approximately 40 My
Page 203 and 204: 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: two-sided oblique-slip collisional
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 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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