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张广才岭南部侵入岩锆石U-Pb LA-ICP-MS年代 被引量：7

ZIRCON U-Pb LA-ICP-MA AGE OF THE INTRUSIVE ROCK IN SOUTHERN ZHANGGUANGCAILING AREA
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摘要 张广才岭是中生代花岗质岩浆作用较为发育的地区，但关于该地区花岗岩的形成时代，缺少精确的同位素年龄资料．本文通过“黑龙江1：5万大贯屯（L52E023007）等四幅区域地质矿产调查”项目，对工作区内的花岗质岩进行了锆石U-Pb同位素测年，结果显示：三叠纪花岗岩形成于224～229Ma，侏罗纪侵入岩形成于202-193Na． Mesozoic granitic magmatism is developed in the Zhangguangcaling area. However, accurate isotopic age data is lack for the granite in the area. Based on the 1 ： 50 000 regional geological and mineral resources survey in Heilongjiang Province, the author carries out the zircon U-Pb isotopic dating for the granitic rocks in the area. The results show that the Triassic granite was formed in 224-229 Ma; while the Jurassic intrusive rock is dated as 202-193 Ma.
作者 敖光
机构地区 辽宁省地质勘查院
出处 《地质与资源》 CAS 2016年第6期533-538,共6页 Geology and Resources
关键词 LA—ICP-MSU-Pb定年 花岗岩 张广才岭 U-Pb LA-ICP-MA age granite Zhangguangcailing
分类号 P588.121 [天文地球—岩石学]
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地质与资源
2016年 第6期

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