内蒙古莲花山铜银矿斜长花岗斑岩LA-MC-ICP-MS锆石U-Pb测年、Hf同位素研究及其地质意义OA北大核心CSCDCSTPCD
LA-ICP-MS zircon U-Pb dating and Hf isotope study of the plagioclase granite porphyry in the Lianhuashan Cu-Ag deposit of Inner Mongolia and its geological significance
内蒙古莲花山铜银矿是大兴安岭南段成矿带上的一个重要矿床,成矿与斜长花岗斑岩密切相关.对矿区内斜长花岗斑岩体进行LA-MC-ICP-MS锆石U-Pb测年结果表明,其形成年龄为(236.8±0.77)Ma (MSWD=0.85)和(237.9±0.71)Ma (MSWD=1.02),为中三叠世岩浆活动产物,而不是前人认为的中侏罗世.莲花山斜长花岗斑岩的εHf(t)=+5.6～+11.5,具有较高的176Hf/177Hf比值(0.282 762～0.2…查看全部>>
The Lianhuashan Cu-Ag deposit of Inner Mongolia is an important deposit in southern Da Hinggan Mountains metallogenic belt, and its mineralization is closely related to the plagioclase granite porphyry. Zircon LA-MC-ICP-MS dating of the plagioclase granite porphyry shows that its formation ages range from 236.8 ± 0.77Ma (MSWD=0.85) to 237.9 ±0.71Ma (MSWD=1.02), suggesting that it is a product of the Triassic magmatism rather than the Middle Jurassic magmatic…查看全部>>
周振华;武新丽;欧阳荷根
中国地质科学院矿产资源研究所,北京100037中国地质大学(北京)地球科学与资源学院,北京100083中国地质大学(北京)地球科学与资源学院,北京100083
天文与地球科学
LA-MC-ICP-MS锆石U-Pb测年Hf同位素三叠纪地壳增生莲花山铜银矿兴蒙造山带
LA-MC-ICP-MS zircon U-Pb datingHf isotopeTriassiccrustal growth Lianhuashan Cu-Ag deposit Xingmeng orogenic belt
《中国地质》 2012 (6)
1472-1485,14
中国地质调查局地质调查项目(1212011085260)和内蒙古重要矿产资源潜力评及区域成矿规律研究项目(2006-02-YS01)联合资助.
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