Proposed Title 1: - Queen's University
Proposed Title 1: - Queen's University Proposed Title 1: - Queen's University
Ms 1 muscovite, Src 1 sericite, and dynamically recrystallized Qtz 1 quartz (Fig. 2.4F). The quartzo-feldspathic mylonite exhibits recrystallized Qtz 1 quartz and Kfs 1 feldspars porphyroclasts (Fig. 2.4H). Shear sense indicators such as δ and σ-type winged Kfs 1 feldspars porphyroclasts (Figs. 2.4G and 2.5A) and deflection foliation (Fig. 2.5B) consistently display a dextral lateral sense of displacement. The mylonitic foliation and lineation in the hornblende-feldspar gneiss contains the higher metamorphic assemblage Kfs 1 +Pl 1 +Hbl 1 (Fig. 2.4D), compatible with amphibolite facies metamorphism. Retrogression is indicated by partial replacement of Hbl 1 hornblende by Bt 1 biotite along shear surfaces (Fig. 2.5C) and by replacement of Kfs 1 feldspars by Src 1 sericite (Fig. 2.5C). Bt 1 biotite is locally retrogressed into Chl 1 chlorite (Fig. 2.5D) resulting in the mineral assemblage Bt 1 +Chl 1 + Src 1 +Qtz 1 typical of the greenschist metamorphic facies. In places, Kfs 1 feldspars are completely sericitized and Chl 1 chlorite completely replaced Bt 1 biotite, defining a lower greenschist metamorphic facies (Qtz 1 +Src 1 +Hem 1 + Chl 1 ) (Fig. 2.5E). Late Chl 2 chlorite, Qtz 2 quartz, Ab 1 albite, Cal 1 calcite, and Ep 1 epidote veinlets cut the foliation. The mylonite is overprinted by a network of ductile-brittle and brittle features. Cataclasites occur in the hanging wall and in association with mylonites in the footwall and are sub-parallel to the mylonitic fabric (Fig. 2.3). The cataclasite contains variable-sized (0.2 to 0.5 mm) clasts of broken Qtz 1 quartz, Kfs 1 feldspars, and mylonite fragments. The matrix is weakly foliated and contains recrystallized and milled Qtz 1 quartz, Cal 2 calcite, Chl 3 chlorite, Hem 3 hematite and Src 2 sericite (Fig. 2.5F). Sub-vertical 35
east-west striking en-échelon quartz-filled tension gashes indicate dextral lateral sense of motion (Fig. 2.5G). 36
- 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 and 16: List of Figures Figure 1.1. General
- Page 17 and 18: Figure 4.16. Distribution of 207 Pb
- 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: hornblende-feldspar gneiss showing
- 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)
- Page 67 and 68: the Qtz 1 quartz dissolution result
- Page 69 and 70: Figure 2.9. Microphotograph of typi
- Page 71 and 72: uraninite (Fig. 2.10). The errors o
- Page 73 and 74: Figure 2.10. Backscattered Electron
- Page 75 and 76: post-mineralization alteration duri
- Page 77 and 78: Post-mineralization alteration even
- Page 79 and 80: Volcanic-type ±U 5 (Sample 6139, G
- Page 81 and 82: 6134 pt8a 2 Gunnar 82.92 2.92 5.30
- Page 83 and 84: Regression to zero content of the s
- Page 85 and 86: faults (Fig. 2.13C). The breccias w
- Page 87 and 88: Figure 2.13. Schematic cross-sectio
- Page 89 and 90: Mylonites were then reactivated at
- Page 91 and 92: and thrusting during the 1.94-1.92
- Page 93 and 94: Beaverlodge area (Morelli et al., 2
- Page 95 and 96: dikes (Ernst and Buchan, 2001b) and
- Page 97 and 98: Figure 2.15: Distribution of 207 Pb
- Page 99 and 100: CHAPTER 3 GENESIS OF MULTIFARIOUS U
- Page 101 and 102: eccia-type. The other styles of min
- Page 103 and 104: The basement consist of Neoarchean
east-west striking en-échelon quartz-filled tension gashes indicate dextral lateral sense of<br />
motion (Fig. 2.5G).<br />
36
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