| 李树才,韩振哲,牛延宏,张跃龙,王兴,程招勋,郑涛.黑龙江西林铅锌铁矿田二长花岗岩成矿岩体年龄的确定及其意义[J].矿产勘查,2015,6(4):356-363 |
| 黑龙江西林铅锌铁矿田二长花岗岩成矿岩体年龄的确定及其意义 |
| Determination of ages of metallogenic monzonitic intrusion and geological implication in the Xilin Pb-Zn-Fe ore depsoit, Yichun, Heilongjiang Province granite |
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| DOI： |
| 中文关键词: 黑龙江 西林铅锌铁矿田 似斑状二长花岗岩 锆石LA-ICPMS U-Pb定年 成岩成矿时代 |
| 英文关键词: porphyroid monzonitic granite, U-Pb isotop age of zircon by LA-ICPMS method, age of the diagenesis and mineralization, Xilin Pb-Zn-Fe ore deposit field, Yichun |
| 基金项目:中国地质调查局地质矿产评价专项项目全国整装勘查规划部署研究(编号:1212011220854)资助。 |
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| 中文摘要: |
| 黑龙江省伊春地区西林铅锌铁矿田的小西林铅锌矿床、大西林夕卡岩型铁矿床中,与成矿有关的细中粒似斑状二长花岗岩岩体U-Pb锆石LA-ICPMS年龄分别为(197±1)Ma、(200±1)Ma,表明成岩成矿时代为早侏罗世,且具有与区域上的翠宏山夕卡岩型铁多金属矿床、鹿鸣斑岩型钼矿床的成矿岩体特征相似、成岩成矿时代相近的特征,暗示该地区的钼铅锌铁多金属矿成矿作用的重要性,也说明该地区具良好的铅锌铁钼多金属矿找矿前景。 |
| 英文摘要: |
| The ages of U-Pb isotope of zircon mineral in the medium to finegrained porphyritic monzonite granites measured by LA-ICPMS in the Xiaoxilin lead-zinc deposit and Daxilin skarn type deposit occurred in the Xilin Pb-Zn ore field of Yichun district located in the southeast of Xiaoxinganling, are(200±1) Ma and(197±1) Ma respectively, it indicated that the era of diagenesis and mineralization belongs to early Jurassic period. It also showed that characteristics of metallogenic granites, ages of diagenesis and mineralization of the two ore deposits are similar with those of Cuihongshan skarn iron poly-metallic deposit and Muming porphyry type molybdenum depositin the region.It implicated the Mo-Pb-Zn-Fe poly-metallic mineralization process played the key role in the study area, and there is great potential for finding Mo-Pb-Zn-Fe deposits. |
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