| 黑龙江多宝山、铜山大型斑岩铜(钼)矿床中辉钼矿的铼-锇同位素年龄 |
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| 引用本文：赵一鸣,毕承思,邹晓秋,孙亚莉,杜安道,赵玉明.1997.黑龙江多宝山、铜山大型斑岩铜(钼)矿床中辉钼矿的铼-锇同位素年龄[J].地球学报,18(1):61-67. |
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| 中文摘要:黑龙江多宝山、铜山大型斑岩铜（钼）矿床的成岩成矿年龄以往确定主要为华力西中晚期至印支期（３１１－２１９Ｍａ），本次研究测得辉钼矿Ｒｅ Ｏｓ等时线年龄为５０６±１４Ｍａ。它和用其他方法测定的同位素年龄有较大差别，从而为进一步讨论矿床的成矿作用提供了新的线索，推断此数据可能反映辉钼矿源岩下奥陶统酸性火山碎屑岩的年龄。研究还发现辉钼矿中１８７Ｏｓ的含量特高，且估算储量很大，具有巨大的潜在经济价值。 |
| 中文关键词:Re-Os年龄 辉钼矿 多宝山 铜山 黑龙江 |
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| The Re Os Isotopic Age of Molybdenite from Duobaoshan and Tongshan Porphyry Copper(Molybdenum)Deposits |
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| Abstract:The Duobaoshan and Tongshan porphyry copper(molybdenum)deposits are the famous deposits in China Its formation age has been determinated by various methods as 311-220Ma The molybdenite mineralization occurs in the quartz veins or fissures within alterd granodiorite,and its Re Os isochron isotopic age is 506±14Ma This age is more different from the lithogenetic and metallogenetic ages of the deposits Therefore,it provides a clue for further study of the metallogenesis The authors consider that this data may be reflect the age of molybdenite source rockLower Ordovician acid volcaniclactic rocks This study also has discovered the high content of 187 Os in the molybdenite Due to the large estimated reserves of 187 Os,the deposits have tremendous potential economic value. |
| keywords:Re Os age molybdenite Dubaoshan and Tongshan Heilongjiang |
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