摘要
在阿尔金南缘构造混杂岩带中,新发现了多个规模较大的斜长片麻岩块体。运用LAICP-MS锆石U-Pb定年分析方法,对阿尔金南缘且末大石门地区构造混杂岩带中的斜长片麻岩进行了年代学测定,并初步探讨其地质意义。根据本次年龄测试结果和区域调查资料表明,阿尔金南缘且末大石门地区,在古元古代存在一期构造-热事件,本期事件与吕梁运动的时限相吻合。
In the tectonic melange belt of the southern margin of Altun,a number of large oblique gneiss blocks have been discovered.By using LAICP-MS zircon U-Pb dating method,the plagioclase gneiss in the tectonic melange belt in the southern margin of Altun and Dashimen area has been chronologically determined,and its geological significance has been preliminarily discussed.According to the results of this age test and the data of regional investigation,there is a first tectonicthermal event in the southern margin of Altun and the Dashimen area at the end of the period,and the event in this period coincides with the time limit of the Luliang movement.
作者
宋卫卫
陈传浩
张中欣
SONG Wei-wei;CHEN Chuan-hao;ZHANG Zhong-xin(Shandong Institute of Geological Exploration,General Administration of Geosciences and Mines of Sinochem,Jinan 250000,China)
出处
《世界有色金属》
2019年第13期149-150,共2页
World Nonferrous Metals
基金
新疆维吾尔自治区地质勘查基金项目管理中心项目《新疆且末县米特河一带1:5万四幅区域地质矿产调查》,项目编号:K16-1-LQ14
