胶东夏甸金矿床成因:流体包裹体及同位素证据
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李逸凡,李洪奎,韩学林,耿科,张玉波,陈国栋
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Genesis of Xiadian Gold Deposit in Jiaodong:Evidence from Fluid Inclusions and Isotopes
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Yifan LI,Hongkui LI,Xuelin HAN,Ke GENG,Yubo ZHANG,Guodong CHEN
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表1 夏甸金矿床流体包裹体显微测温、盐度和压力统计结果
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Table 1 Statistical results of microscopic temperature measurement,salinity and pressure of fluid inclusions in Xiadian gold deposit
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分析 编号 | 岩矿名称 | 矿化阶段 | 赋存矿物 | 类型 | 大小 /μm | 气液比/% | Th,CO2/℃ | Th,tot/℃ | 盐度[w(NaCl)]/% | 压力/MPa |
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范围 | 均值(n) | 范围 | 均值(n) | 范围 | 均值(n) | 范围 | 均值(n) |
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XD011 | 黄铁矿化石英脉 | Ⅲ | Qz | H | 2×4~6×12 | 5~35 | | | 90~221 | 152(25) | 1.4~13.5 | 8.18(25) | | | H-C | 6×12 | 10~15 | | 28.6 | | 151 | | 12.81 | | 285 | XD012 | 矿化石英脉 | Ⅲ | Qz | H | 2×4~6×13 | 5~80 | | | 119~254 | 176(26) | 1.23~14.8 | 7.89(26) | | | XD019 | 矿化石英脉 | Ⅲ | Qz | H | 2×4~5×14 | 5~80 | | | 120~260 | 170(19) | 1.02~6.45 | 3.96(21) | | | XD023 | 矿化石英脉 | Ⅲ | Qz | H | 2×4~6×9 | 10~90 | | | 141~268 | 185(21) | 0.43~13.45 | 3.19(21) | | | CJ003 | 黄铁绢英岩 | Ⅱ | Qz | H | 2×4~6×10 | 10~15 | | | 105~238 | 190(30) | 3.52~14.06 | 6.31(30) | | | CJ006 | 黄铁矿化石英脉 | Ⅲ | Qz | H | 2×5~6×14 | 10~15 | | | 119~241 | 185(26) | 5.71~6.45 | 6.12(26) | | | H-C | 4×8~6×10 | 30 | 27.0~28.8 | 27.9(2) | 242~265 | 253(2) | 7.61~7.78 | 7.75(2) | 247~281 | 264(2) | CJ007 | 黄铁绢英岩 | Ⅱ | Qz | H | 2×4~4×5 | 10~15 | | | 201~257 | 229(21) | 0.43~4.44 | 2.71(21) | | | CJ008 | 黄铁绢英岩 | Ⅱ | Qz | H | 2×3~5×7 | 10~20 | | | 131~195 | 163(15) | 3.71~6.20 | 5.1(15) | | | H-C | 3×5 | 50 | | 30.2 | | 294 | | 7.61 | | 215 | CJ009 | 金属硫化物 石英脉 | Ⅲ | Qz | H | 2×3~4×6 | 10~35 | | | 90~259 | 179(18) | 4.80~6.59 | 5.91(18) | | | H-C | 5×7 | 20 | | 29.3 | | 250 | | 5.72 | | 246 | CJ011 | 黄铁绢英岩 | Ⅱ | Qz | H | 2×5~5×6 | 10~80 | | | 125~281 | 188(18) | 4.98~8.66 | 6.07(18) | | | H-C | 3×4 | 40 | | 30.4 | | 395 | | 7.61 | | 349 | CJ013 | 黄铁矿化石英脉 | Ⅲ | Qz | H | 2×5~4×8 | 10~25 | | | 159~218 | 192(21) | 3.52~9.44 | 5.47(21) | | | H-C | 3×5~4×8 | 20~60 | 25.9~30.8 | 28.1(3) | 224~298 | 256(3) | 3.58~6.79 | 5.08(3) | 127~397 | 264(3) |
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