| 吉林中东部季德屯和大石河大型钼矿床流体包裹体特征及地质意义 |
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| 引用本文： | 邵建波.吉林中东部季德屯和大石河大型钼矿床流体包裹体特征及地质意义[J].世界地质,2014,33(4):793-807. |
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| 作者姓名： | 邵建波 |
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| 作者单位： | 吉林省地矿信息中心，长春 130061 |
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| 摘 要： | 季德屯和大石河钼矿是吉林中东部新发现的两个大型钼矿。季德屯钼矿主成矿阶段发育富液相(WL)、富气相(WG)和含CO2相(C型)三种类型流体包裹体,各类包裹体平均盐度为4.8~7.5(wt%,Na Cl)、均一温度为240℃~320℃、成矿压力为73.6~75.5 MPa;晚成矿阶段仅发育富液相(WL)包裹体,包裹体平均盐度为4.5~7.5(wt%,Na Cl)、均一温度为150℃~180℃、成矿压力为43.1~45.1 MPa。大石河钼矿主成矿阶段发育富液相(WL)和含CO2相(C型)两种类型流体包裹体,各类包裹体平均盐度为3.0~6.0(wt%,Na Cl)、均一温度为180℃~330℃、成矿压力为86.4~91.6 MPa;晚成矿阶段仅发育富液两相(WL)包裹体,盐度为1.0~4.0(wt%,Na Cl)、均一温度为160℃~220℃、成矿压力为46.8~48.8 MPa。结合矿床地质特征,确定季德屯钼矿矿床类型为与侵入岩有关的脉状钼矿床,大石河钼矿矿床类型为造山型脉状钼矿床。
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| 关 键 词： | 流体包裹体 大石河钼矿 季德屯钼矿 造山型脉状钼矿床 与侵入体有关的脉状钼矿 吉林 |
Characteristics of fluid inclusions of Jidetun and Dashihe Mo deposits in mid- eastern Jilin and their geological significance |
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| SHAO Jian-Bo.Characteristics of fluid inclusions of Jidetun and Dashihe Mo deposits in mid- eastern Jilin and their geological significance[J].World Geology,2014,33(4):793-807. |
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| Authors: | SHAO Jian-Bo |
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| Institution: | Information Center of Geology and Mineral Ｒesources of Jilin Province，Changchun 130061，China |
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| Abstract: | Jidetun and Dashihe Mo deposits have been discovered recently in mid- eastern Jilin Province． Flu- id inclusions in ore- bearing quartz veins of main metallogenic stage of Jidetun Mo deposit can be classified into of the H2O- rich phase (WL- type)，gas- rich phase (WG- type) and CO2 - bearing phase (C- type)． The average salini- ty of all kinds of fluid inclusions ranges from 4. 5 to 7. 5 (wt%，NaCl)，the complete homogenization temperature ranges from 240 ℃ to 320 ℃，and the metallogenic pressure ranges from 73. 6 to 75. 6 MPa． Fluid inclusions in ore-bearing quartz veins of later metallogenic stage are only developed in H 2 O- rich phase (WL- type) which salinity from 4. 5 to 7. 5 (wt%，NaCl) and complete homogenization temperature from 160 ℃ to 180 ℃，with metallogenic pressure from 43. 1 to 45. 1 MPa． Fluid inclusions in ore- bearing quartz veins of main metallogenic stage of Dashihe Mo deposit include of the H 2 O- rich phase (WL- type) and CO2 - bearing phase (C- type)，their salinity from 3. 0 to 6. 0 (wt%，NaCl)，complete homogenization temperature from 180 ℃ to 330 ℃，and metallogenic pressure from 86. 4 to 91. 6 MPa． Fluid inclusions in ore- bearing quartz veins of later metallogenic stage are only developed in H2O- rich phase (WL- type)，its salinity from 1. 0 to 4. 0 (wt%，NaCl)，complete homogenization temperaturefrom 160 ℃ to 220 ℃，and metallogenic pressure from 46. 8 to 48. 8 MPa． According to the comprehensive study of their geological characteristics，the author has considered that Jidetun Mo deposit is a orogenic- type vein Mo de- posit，while the Dashihe Mo deposit is a typical fault- controlled intrusion- related vein Mo deposit． |
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| Keywords: | fluid inclusion Dashihe Mo deposit Jidetun Mo deposit orogenic- type vein Mo deposit intru- sion- related vein Mo deposit Jilin |
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