Proposed Title 1: - Queen's University
Proposed Title 1: - Queen's University Proposed Title 1: - Queen's University
Volcanic 6120-5 1553.0 2260.4 186.0 519.3 51.4 11.9 52.9 7.5 50.2 10.5 29.2 3.9 24.5 3.4 Volcanic 6120-1 1502.3 2267.9 181.4 471.9 42.4 10.5 44.8 5.8 39.3 8.4 25.0 3.4 22.2 3.1 Volcanic 6139-4 1796.1 1485.6 129.3 469.2 72.8 16.6 78.9 12.0 84.2 17.3 46.2 6.5 43.9 4.8 Volcanic 6120-4 1414.3 2016.8 154.9 391.0 33.9 7.9 35.9 4.8 33.3 7.1 20.7 2.8 18.6 2.8 Volcanic 6120-10 1287.5 1866.2 151.3 393.7 37.6 9.5 41.6 5.6 38.8 8.1 23.2 3.1 20.6 3.0 Volcanic 6139-3 1533.8 1271.3 122.0 460.2 82.7 18.3 94.7 14.4 101.7 20.7 55.4 7.9 49.4 6.0 Volcanic 6139-2 1384.1 1280.7 126.5 498.2 89.2 19.4 97.0 14.3 99.2 19.9 53.5 7.2 44.6 5.7 Volcanic 6139-9 1197.1 1228.3 127.1 521.8 100.5 22.7 118.0 16.6 113.1 22.4 59.4 7.7 49.8 6.3 Volcanic 6139-7 1100.9 1179.8 112.0 472.2 88.7 20.6 104.2 14.4 96.6 19.3 49.9 6.4 39.8 5.2 Volcanic 6120-3 1127.4 1478.6 112.0 310.7 34.2 8.6 46.6 6.2 43.0 9.7 27.9 3.7 24.3 3.7 Volcanic 6139-5 1032.3 1127.3 115.5 480.0 89.9 19.1 91.8 13.9 92.5 19.5 49.8 6.9 43.4 5.3 Athabasca 3705-4 1948.2 6666.6 601.0 2047.4 347.8 58.3 220.0 38.2 244.7 43.8 125.7 18.4 117.8 14.4 Athabasca 3705-3 1775.0 6435.4 573.9 1869.6 312.8 53.4 214.5 36.0 233.2 41.4 121.2 16.3 110.0 14.4 Athabasca 3705-12 1571.3 5964.9 511.0 1625.1 258.8 41.3 145.7 26.8 178.6 29.6 80.7 12.6 86.7 9.8 Athabasca 3705-2 1175.1 4674.0 468.8 1617.6 288.7 49.1 172.4 31.2 197.3 35.5 100.5 14.9 91.1 10.9 Athabasca 3705-6 1157.4 4863.5 442.2 1411.6 215.9 38.3 140.8 26.9 182.0 30.1 93.9 14.2 101.3 11.6 Athabasca 3705-1 1459.7 4766.3 390.1 1181.7 248.0 41.6 152.1 29.1 198.6 35.6 92.2 15.3 87.6 10.9 Athabasca 3705-5 893.9 2913.2 237.8 844.7 115.8 20.4 69.4 12.3 74.0 13.7 35.1 5.1 34.0 3.8 Mafic dike RM-18 197.55 381.58 41.57 148.96 20.63 4.57 12.12 1.07 5.05 0.8 1.99 0.25 1.48 0.28 Mafic dike RM-17 108.28 219.98 24.84 90.07 14.25 3.37 9.64 1.03 5.33 0.9 2.32 0.3 1.87 0.37 Mafic dike RM-21 93.24 194.96 22.8 86.25 13.31 3.08 8.87 0.92 4.75 0.83 2.09 0.29 1.65 0.3 Mafic dike RM-32 93.16 186.32 21.36 79.32 12.77 2.93 9.15 1 5.38 0.94 2.4 0.32 1.98 0.39 Mafic dike RM-35 71.47 150.81 17.32 65.26 11.27 2.27 8.46 1.03 5.75 1.09 2.97 0.43 2.67 0.52 Mafic dike RM-23 70.17 136.46 15.08 56.4 8.79 2.14 6.32 0.71 4.01 0.72 1.97 0.27 1.59 0.32 Mafic dike RM-34 56.31 110.7 12.49 46.47 7.7 1.97 6.12 0.72 4.16 0.74 2.06 0.27 1.68 0.33 Mafic dike RM-36 55.95 109.47 12.28 45.24 7.71 1.96 5.98 0.73 4.14 0.76 2.06 0.29 1.72 0.34 Mafic dike RM-26 54.5 105.53 11.89 43.91 7.33 1.79 5.79 0.69 3.95 0.7 1.89 0.26 1.6 0.31 Mafic dike RM-33 53.57 105.07 11.87 44.59 7.25 1.91 5.79 0.7 4.01 0.75 1.99 0.28 1.67 0.34 Table 3.8. REE contents of uraninite from different generations of U deposits in the Beaverlodge area. Values for the mafic dike are from Moreilli et al. (2009). Data are plotted in Figure 3.10. 3.5. Discussion Synthesis of the petrographic, structural, geochronologic, and geochemical data reveals the nature and sequence of alteration and mineralization leading to the formation of U deposits in the Beaverlodge area (Table 3.9). This sequence is geochemically and structurally complex, involving multiple overprinting events of deformation, hydrothermal alteration, and U mineralization occupying structurally disturbed zones created by ductilebrittle and brittle deformation that reactivated early ductile shear zones (Fig. 3.11). 117
Retrograde metamorphism Early vein -type Metasomatic -type Breccia-type Volcanic -type Athabasca -type Deposits All deposits Ace-Fay Gunnar All deposits Ace-Fay-Cinch Lake-Gunnar Ace Fay, Martin Lake Mineral and ore assemblage Chl 1 -Hem 1 -Src 1 U2 -Chl 4 -Cal 4 - U 3 -Chl 5 -Cal 5 -Ttn 2 U 5 -Chl 8 -Cal 9 - U 4 -Br 1 -Chl 7 -Cal 8 - Hem 7 -Ap 1 -Ttn 3 - U 6 -Chl 9 -Cal 10 - Hem 4 -Mnz 1 -Hem 5 Hem 6 Hem 8 Mnz 2 Age of formation
- 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
- Page 105 and 106: of essentially unmetamorphosed arko
- Page 107 and 108: WDX X-ray spectrometers at Carleton
- Page 109 and 110: 3.4. Results 3.4.1. Paragenesis of
- Page 111 and 112: are derived from their chlorite cry
- Page 113 and 114: Figure 3.4. Photomicrographs of typ
- Page 115 and 116: 3.4J). Py 6 Pyrite and Cpy 5 chalco
- Page 117 and 118: mineralization varies from 25.70 to
- Page 119 and 120: 6137APt71 60.67 13.73 4.59 6.48 0.0
- Page 121 and 122: Fig. 3.6A). The Ca may result from
- Page 123 and 124: Sample ID 1 ± 2 ± 3.a ± 4 ± 5.a
- Page 125 and 126: Stable isotopic O and C composition
- Page 127 and 128: Sample ID Deposit Mineral Mineral v
- Page 129 and 130: equilibrium with a fluid having δ
- Page 131 and 132: Syn-ore Chl 8 chlorite sampled from
- Page 133 and 134: Figure 3.9. Binary diagrams showing
- Page 135: Figure 3.10. Chondrite-normalized R
- Page 139 and 140: contents in syn-ore Chl 4 chlorite
- Page 141 and 142: decompression and hydration reactio
- Page 143 and 144: mineralizations, which upgraded the
- Page 145 and 146: metamorphic origin of the main U 4
- Page 147 and 148: y the abundance of Ap 1 apatite and
- Page 149 and 150: of late fluid events that have affe
- Page 151 and 152: CHAPTER 4 FLUID EVOLUTION AND GENES
- Page 153 and 154: 1990, 1991; Wyborn et al., 1990). H
- Page 155 and 156: stable isotope geochemistry, U-Pb g
- Page 157 and 158: coincident with the initiation of s
- Page 159 and 160: plasma mass spectrometry (LA-HR-ICP
- Page 161 and 162: The Coronation Hill deposit occupie
- Page 163 and 164: arsenides, nickel selenide and copp
- Page 165 and 166: No corrections were made to the 238
- Page 167 and 168: which was interpreted as being asso
- Page 169 and 170: porphyry and coated by Chl 1 formin
- Page 171 and 172: Mineralized breccias showing quartz
- Page 173 and 174: SOUTH ALLIGATOR RIVER GROUP EL SHER
- Page 175 and 176: A Carbonaceous Shale B Src 1 Qtz 1
- Page 177 and 178: A Granite Qtz 0 fragments Qtz 0 B M
- Page 179 and 180: chemical composition as a result of
- Page 181 and 182: Sample I.D SiO 2 CaO FeO ThO 2 MnO
- Page 183 and 184: site occupancy (Cathelineau, 1988).
- Page 185 and 186: Mineral values Temperature Fluid va
Volcanic 6120-5 1553.0 2260.4 186.0 519.3 51.4 11.9 52.9 7.5 50.2 10.5 29.2 3.9 24.5 3.4<br />
Volcanic 6120-1 1502.3 2267.9 181.4 471.9 42.4 10.5 44.8 5.8 39.3 8.4 25.0 3.4 22.2 3.1<br />
Volcanic 6139-4 1796.1 1485.6 129.3 469.2 72.8 16.6 78.9 12.0 84.2 17.3 46.2 6.5 43.9 4.8<br />
Volcanic 6120-4 1414.3 2016.8 154.9 391.0 33.9 7.9 35.9 4.8 33.3 7.1 20.7 2.8 18.6 2.8<br />
Volcanic 6120-10 1287.5 1866.2 151.3 393.7 37.6 9.5 41.6 5.6 38.8 8.1 23.2 3.1 20.6 3.0<br />
Volcanic 6139-3 1533.8 1271.3 122.0 460.2 82.7 18.3 94.7 14.4 101.7 20.7 55.4 7.9 49.4 6.0<br />
Volcanic 6139-2 1384.1 1280.7 126.5 498.2 89.2 19.4 97.0 14.3 99.2 19.9 53.5 7.2 44.6 5.7<br />
Volcanic 6139-9 1197.1 1228.3 127.1 521.8 100.5 22.7 118.0 16.6 113.1 22.4 59.4 7.7 49.8 6.3<br />
Volcanic 6139-7 1100.9 1179.8 112.0 472.2 88.7 20.6 104.2 14.4 96.6 19.3 49.9 6.4 39.8 5.2<br />
Volcanic 6120-3 1127.4 1478.6 112.0 310.7 34.2 8.6 46.6 6.2 43.0 9.7 27.9 3.7 24.3 3.7<br />
Volcanic 6139-5 1032.3 1127.3 115.5 480.0 89.9 19.1 91.8 13.9 92.5 19.5 49.8 6.9 43.4 5.3<br />
Athabasca 3705-4 1948.2 6666.6 601.0 2047.4 347.8 58.3 220.0 38.2 244.7 43.8 125.7 18.4 117.8 14.4<br />
Athabasca 3705-3 1775.0 6435.4 573.9 1869.6 312.8 53.4 214.5 36.0 233.2 41.4 121.2 16.3 110.0 14.4<br />
Athabasca 3705-12 1571.3 5964.9 511.0 1625.1 258.8 41.3 145.7 26.8 178.6 29.6 80.7 12.6 86.7 9.8<br />
Athabasca 3705-2 1175.1 4674.0 468.8 1617.6 288.7 49.1 172.4 31.2 197.3 35.5 100.5 14.9 91.1 10.9<br />
Athabasca 3705-6 1157.4 4863.5 442.2 1411.6 215.9 38.3 140.8 26.9 182.0 30.1 93.9 14.2 101.3 11.6<br />
Athabasca 3705-1 1459.7 4766.3 390.1 1181.7 248.0 41.6 152.1 29.1 198.6 35.6 92.2 15.3 87.6 10.9<br />
Athabasca 3705-5 893.9 2913.2 237.8 844.7 115.8 20.4 69.4 12.3 74.0 13.7 35.1 5.1 34.0 3.8<br />
Mafic dike RM-18 197.55 381.58 41.57 148.96 20.63 4.57 12.12 1.07 5.05 0.8 1.99 0.25 1.48 0.28<br />
Mafic dike RM-17 108.28 219.98 24.84 90.07 14.25 3.37 9.64 1.03 5.33 0.9 2.32 0.3 1.87 0.37<br />
Mafic dike RM-21 93.24 194.96 22.8 86.25 13.31 3.08 8.87 0.92 4.75 0.83 2.09 0.29 1.65 0.3<br />
Mafic dike RM-32 93.16 186.32 21.36 79.32 12.77 2.93 9.15 1 5.38 0.94 2.4 0.32 1.98 0.39<br />
Mafic dike RM-35 71.47 150.81 17.32 65.26 11.27 2.27 8.46 1.03 5.75 1.09 2.97 0.43 2.67 0.52<br />
Mafic dike RM-23 70.17 136.46 15.08 56.4 8.79 2.14 6.32 0.71 4.01 0.72 1.97 0.27 1.59 0.32<br />
Mafic dike RM-34 56.31 110.7 12.49 46.47 7.7 1.97 6.12 0.72 4.16 0.74 2.06 0.27 1.68 0.33<br />
Mafic dike RM-36 55.95 109.47 12.28 45.24 7.71 1.96 5.98 0.73 4.14 0.76 2.06 0.29 1.72 0.34<br />
Mafic dike RM-26 54.5 105.53 11.89 43.91 7.33 1.79 5.79 0.69 3.95 0.7 1.89 0.26 1.6 0.31<br />
Mafic dike RM-33 53.57 105.07 11.87 44.59 7.25 1.91 5.79 0.7 4.01 0.75 1.99 0.28 1.67 0.34<br />
Table 3.8. REE contents of uraninite from different generations of U deposits in the<br />
Beaverlodge area. Values for the mafic dike are from Moreilli et al. (2009). Data are plotted<br />
in Figure 3.10.<br />
3.5. Discussion<br />
Synthesis of the petrographic, structural, geochronologic, and geochemical data<br />
reveals the nature and sequence of alteration and mineralization leading to the formation<br />
of U deposits in the Beaverlodge area (Table 3.9). This sequence is geochemically and<br />
structurally complex, involving multiple overprinting events of deformation, hydrothermal<br />
alteration, and U mineralization occupying structurally disturbed zones created by ductilebrittle<br />
and brittle deformation that reactivated early ductile shear zones (Fig. 3.11).<br />
117
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