摘要
小盐池北二长闪长岩体的时代厘定一直存在疑问,而同位素资料的匮乏是问题的关键所在。本次1∶5万区域地质矿产调查中对该岩体进行了锆石SHRIMPU-Pb测定,获得了427Ma±8Ma年龄值,表明其形成于中志留世。
The determination of the age of the north Xiaoyanchi monzodiorite intrusion in Kumtag, East Tianshan, Xinjiang, has long been in question becausse of lack of isotope age data. During 1：50,000 regional geological and mineral survey, SHRIMP U-Pb dating was performed on zircons from this intrusion and an age of 427±8 Ma was obtained. This age suggests that this intrusion formed in the Middle Silurian.
出处
《地质通报》
CAS
CSCD
北大核心
2006年第8期966-968,共3页
Geological Bulletin of China
基金
新疆维吾尔自治区<新疆哈密地区库姆塔格沙垄西南一带1:5万区域地质矿产调查>项目(编号:XJQDZ2003-28)成果。
