| 蒋少涌,丁悌平,魏菊英,苏琪.辽宁八家子铅锌矿床硫同位素地球化学[J].地质找矿论丛,1991,(3):88-99 |
| 辽宁八家子铅锌矿床硫同位素地球化学 |
| SULFUR ISOTOPE GEOCHEMISTRY OF THE BAJIAZI LEAD-ZINC DEPOSIT, LIAONING PROVINCE, CHINA |
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| DOI：10.6053/j.issn.1001-1412.1991.3. 009 |
| 中文关键词: 硫同位素 成矿溶液化学环境 硫源 辽宁八家子 |
| 英文关键词: |
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| 中文摘要: |
| 八家子矿床的硫同位素组成的系统研究表明,矿体中硫化物δ34S值为6.0～-8.2‰,在频率直方图上呈塔式分布,具有明显的时、空变化规律。矿区黑云母石英闪长岩中浸染状黄铁矿δ34S值为1.9～-0.8‰,变化小。地层中浸染状、分散状和层纹状硫化物δ34S值为13.0～-19.1‰,变化较大。根据矿床地质条件、矿物共生组合、成矿温度和硫同位素,进一步讨论了成矿溶液的化学条件和演化特征,认为矿床硫的来源可能是地层硫和岩浆硫的混合。 |
| 英文摘要: |
| The sulfur isotope compositions of the Bajiazi ore deposit are studied in detail. The δ34S values of sulfide in orebodies are between 6.0 and -8.2 pet mil, showing a peak curve in histogram and having a horizontal and vertical zoning character. The δ34S values of the disseminated pyrite in biotite quartz diorite are between -0.8 and 1.9 Per mil, varied a little. The δ34S values of sulfide in sedi-mentary strata varied widely from -19.1 to 13.0 per mil. According to the geological background,mineral peagends, ore-forming temperature and δ34S values, we further discussed the chemical features of ore-forming solution in different stages. The source of sulfur in orebodies is estimiated from a mix of sedimentary rock sulfur and igneous rock sulfur. |
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