| 季根源.越南广宁省晋磨锑矿床流体包裹体和氢氧同位素地球化学研究[J].地质与勘探,2014,50(6):1173-1180 |
| 越南广宁省晋磨锑矿床流体包裹体和氢氧同位素地球化学研究 |
| Fluid inclusions and H-O isotope geochemistry in the Jinmo Antimony deposit, Guangning Province, Vietnam |
| 投稿时间：2014-03-03 修订日期：2014-07-15 |
| DOI： |
| 中文关键词: 流体包裹体 氢氧同位素 晋磨锑矿 越南广宁省 |
| 英文关键词: fluid inclusion, hydrogen and oxygen isotopes, Jinmo antimony deposit, Guangning Province of Vietnam |
| 基金项目:中国地质调查局科研项目《典型矿山实物地质资料采集与集成》（编号：12120113086200）资助 |
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| 中文摘要: |
| 晋磨锑矿床位于印支地块和华南地块碰撞界线的边缘、金沙江-红河断裂带的南段东侧，属于华南地块。对矿床开展的石英流体包裹体均一法测温、气液相成分测试和氢氧同位素测试分析表明，流体包裹体液相成分以Ca2+、Na+、K+、SO42-、Cl-和F-为主，气相成分以H2O与CO2为主。流体包裹体均一温度在138℃~303℃之间，平均值为208℃，盐度在0.3％~4.0％之间，平均值为1.7％。石英流体包裹体的δ18OSMOW值在14.6×10-3~15.5×10-3之间，δDSMOW值在-84.1×10-3~-73.8×10-3之间，δ18OH2O值在2.7×10-3~3.6×10-3之间。综合以上表明：成矿流体以大气降水为主，混有岩浆热夜。 |
| 英文摘要: |
| The Jinmo antimony deposit is located in the collision boundary between the Indosinian block and South China block, and situated at the east of the southern segment of the Jinshajiang-Red River fault as part the south China block. The investigation of homogenization temperature, liquid compositions and gas components for quartz fluid inclusions indicate that H2O and CO2 in the inclusions are mainly of gas phase, and the liquid components of fluid inclusions are dominated by Ca2+, Na+, K+ , SO42-, Cl- and F-. The homogeneous temperature of fluid inclusions varies from 138℃ to 303℃ in the district with a mean of 208℃. The salinity of the fluid inclusions ranges from 0.3% to 4.0% with a mean of 1.7%. Hydrogen and oxygen isotopic studies indicate that δ18OSMOW values vary from 14.6×10-3 to 15.5×10-3 , δDSMOW values are from -84.1×10-3 to -73.8×10-3, and δ18OH2O values change from 2.7×10-3 to 3.6×10-3. It is suggested that ore-forming fluid was mainly derived meteoric water mixed with magmatic fluid. |
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