Proposed Title 1: - Queen's University
Proposed Title 1: - Queen's University Proposed Title 1: - Queen's University
Figure 3.1. Generalized geological map of the Western Churchill Province, Canada….….83 Figure 3.2. Simplified geological map of the Beaverlodge area……….………………..…85 Figure 3.3. Mineral paragenesis of the Beaverlodge U deposits……….…………….….…91 Figure 3.4. Photomicrographs of typical mineral assemblages ……………………….…...94 Figure 3.5. Content of substituting elements in U as function of the chemical Pb age……97 Figure 3.6. Diagrams showing the compositional variation of chlorite phases.......….…..102 Figure 3.7. Calculated δ 18 O and δ 13 C values of mineralizing fluids in equilibrium with carbonate minerals……….……………………………………………....…………106 Figure 3.8. Calculated δ 18 O and δ 2 H values of mineralizing fluids in equilibrium with chlorite minerals……...…………………………………………………………….110 Figure 3.9. Diagrams showing chondrite normalized REE compositions of uraninite…..113 Figure 3.10. Chondrite-normalized REE patterns in uraninite ……….……………….…115 Figure 3.11. Conceptual genetic model for U mineralization in the Beaverlodge area…..121 Figure 4.1. Geological map of the South Alligator River area……………………….…..135 Figure 4.2. Geological plan of the Coronation Hill deposit……………………….……..141 Figure 4.3. Geological cross-section of El Sherana U deposits…………………………..143 Figure 4.4. General mineral paragenesis of the Coronation Hill deposit……..……….…147 Figure 4.5. Photomicrographs of typical mineral alteration phases of the pre-ore stage...149 Figure 4.6. Photomicrographs of typical mineral alteration phases of the syn-ore stage...151 Figure 4.7. Photomicrographs of typical mineral alteration phases of the post-ore stage..153 Figure 4.8. General mineral paragenesis of the El Sherana deposit………………………154 Figure 4.9. Microphotograph of typical mineral assemblages and crosscutting relationships of the pre-, syn, and post-ore stage in the El Sherana deposit…………………...…156 Figure 4.10. Photomicrographs of mineral assemblages of the Coronation sandstones….158 Figure 4.11. Calculated δ 2 H and δ 18 O values of fluids in equilibrium with clay minerals.165 Figure 4.12. U-Pb concordia diagrams from in situ isotopic analysis by LA-HR-ICP-MS of U-rich minerals from the Coronation Hill and El Sherana deposits …………..…..170 Figure 4.13. Pb-Pb isochron diagrams of galena and uraninite from Coronation Hill...…172 Figure 4.14. Plot of element contents in uraninite as a function of chemical Pb ages……174 Figure 4.15. Conceptual genetic model for U mineralization in the SAVMF……………178 xvi
Figure 4.16. Distribution of 207 Pb/ 206 Pb ages and timing of various U mineralization and tectonic events that affected the South Alligator Valley area………………………184 Figure 5.1. Generalized model for uranium mineralizing system in Paleoproterozoic successor basins.……………………………………………………………...…….189 Figure 5.2. Geologic cross-section through the Gunnar deposit …………………………193 Figure 5.3. Schematic illustration of the tectonic evolution of the Main Ore Shear Zone and the Saint Louis Fault.……………...…………………….……………..…………...195 Figure 5.4. Bedrock of Finland……………………………………………………….…..202 Figure 5.5. Schematic Karelian stratigraphy, lithology, and U occurrences in the Koli area, eastern Finland………..………………………………..……...…………..………..203 Figure 5.6. Distribution of the Roraima Supergroup in northern South America………...206 Figure 5.7. Geologic setting of the Aricheng U deposit ……………………....................208 xvii
- Page 1 and 2: FLUID EVOLUTION AND STRUCTURAL CONT
- Page 3 and 4: Abstract Uranium deposits associate
- Page 5 and 6: Co-Authorship This thesis and the m
- Page 7 and 8: Sarah Rice and Jonathan Cloutier, a
- Page 9 and 10: TABLE OF CONTENTS Abstract………
- Page 11 and 12: 2.5.2. Temporal relationships of fa
- Page 13 and 14: 4.5.3. Isotopic compositions of min
- Page 15: List of Figures Figure 1.1. General
- Page 19 and 20: Table 4.4. Isotopic data of the U-P
- Page 21 and 22: processes by which these deposits f
- Page 23 and 24: Figure 1.1. Generalized geological
- Page 25 and 26: which is the equivalent of the Mill
- Page 27 and 28: dolostone and carbonaceous shale (L
- Page 29 and 30: Mineral Field (Figure 1.2). Many de
- Page 31 and 32: 2005). U mineralization is controll
- Page 33 and 34: Figure 1.4. Schematic representatio
- Page 35 and 36: In particular, the key issues to be
- Page 37 and 38: genetic model for the U mineralizat
- Page 39 and 40: fourth and most significant uranium
- Page 41 and 42: The Beaverlodge area is part of the
- Page 43 and 44: 1998; Hartlaub and Ashton, 1998). R
- Page 45 and 46: (D 1 ) produced a regional migmatit
- Page 47 and 48: These previous age models do not ta
- Page 49 and 50: the age when the concentrations of
- Page 51 and 52: Figure 2.3. A: Detailed geologic ma
- Page 53 and 54: hornblende-feldspar gneiss showing
- Page 55 and 56: east-west striking en-échelon quar
- Page 57 and 58: and broken Kfs 1 and Qtz 1 embedded
- Page 59 and 60: A Meters LEGEND B Figure 2.6. A: De
- Page 62 and 63: Figure 2.7. Microphotograph of vari
- Page 64: eplaces Kfs 1 feldspars (Fig. 2.7A)
Figure 3.1. Generalized geological map of the Western Churchill Province, Canada….….83<br />
Figure 3.2. Simplified geological map of the Beaverlodge area……….………………..…85<br />
Figure 3.3. Mineral paragenesis of the Beaverlodge U deposits……….…………….….…91<br />
Figure 3.4. Photomicrographs of typical mineral assemblages ……………………….…...94<br />
Figure 3.5. Content of substituting elements in U as function of the chemical Pb age……97<br />
Figure 3.6. Diagrams showing the compositional variation of chlorite phases.......….…..102<br />
Figure 3.7. Calculated δ 18 O and δ 13 C values of mineralizing fluids in equilibrium with<br />
carbonate minerals……….……………………………………………....…………106<br />
Figure 3.8. Calculated δ 18 O and δ 2 H values of mineralizing fluids in equilibrium with<br />
chlorite minerals……...…………………………………………………………….110<br />
Figure 3.9. Diagrams showing chondrite normalized REE compositions of uraninite…..113<br />
Figure 3.10. Chondrite-normalized REE patterns in uraninite ……….……………….…115<br />
Figure 3.11. Conceptual genetic model for U mineralization in the Beaverlodge area…..121<br />
Figure 4.1. Geological map of the South Alligator River area……………………….…..135<br />
Figure 4.2. Geological plan of the Coronation Hill deposit……………………….……..141<br />
Figure 4.3. Geological cross-section of El Sherana U deposits…………………………..143<br />
Figure 4.4. General mineral paragenesis of the Coronation Hill deposit……..……….…147<br />
Figure 4.5. Photomicrographs of typical mineral alteration phases of the pre-ore stage...149<br />
Figure 4.6. Photomicrographs of typical mineral alteration phases of the syn-ore stage...151<br />
Figure 4.7. Photomicrographs of typical mineral alteration phases of the post-ore stage..153<br />
Figure 4.8. General mineral paragenesis of the El Sherana deposit………………………154<br />
Figure 4.9. Microphotograph of typical mineral assemblages and crosscutting relationships<br />
of the pre-, syn, and post-ore stage in the El Sherana deposit…………………...…156<br />
Figure 4.10. Photomicrographs of mineral assemblages of the Coronation sandstones….158<br />
Figure 4.11. Calculated δ 2 H and δ 18 O values of fluids in equilibrium with clay minerals.165<br />
Figure 4.12. U-Pb concordia diagrams from in situ isotopic analysis by LA-HR-ICP-MS of<br />
U-rich minerals from the Coronation Hill and El Sherana deposits …………..…..170<br />
Figure 4.13. Pb-Pb isochron diagrams of galena and uraninite from Coronation Hill...…172<br />
Figure 4.14. Plot of element contents in uraninite as a function of chemical Pb ages……174<br />
Figure 4.15. Conceptual genetic model for U mineralization in the SAVMF……………178<br />
xvi
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