张广才岭南部侵入岩锆石U-Pb LA-ICP-MS年代

详细信息

收稿日期: 2015-12-30

修回日期: 2016-02-21

刊出日期: 2016-12-31

ZIRCON U-Pb LA-ICP-MA AGE OF THE INTRUSIVE ROCK IN SOUTHERN ZHANGGUANGCAILING AREA

Received Date: 30 December 2015

Revised Date: 21 February 2016

Publish Date: 31 December 2016

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224~229 Ma，侏罗纪侵入岩形成于202~193 Ma.
- LA-ICP-MS U-Pb 定年 /
- 花岗岩 /
- 张广才岭
Abstract: 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.
- U-Pb LA-ICP-MA age /
- granite /
- Zhangguangcailing