摘要
西准噶尔巴尔鲁克断裂东南侧石英闪长岩体的锆石SHRIMPU-Pb年龄值为315Ma±5Ma,属华力西中期形成的岩浆侵入体;其围岩为中泥盆统巴尔鲁克组和下石炭统包古图组。此次所测定的石英闪长岩锆石SHRIMPU-Pb年龄值,为确定西准噶尔巴尔鲁克晚古生代岛弧带的形成时代提供了可靠的年代学依据。
Quartz diorite at the southeast side of the Ba＇erluke fault, western Junggar, Xinjiang, has a SHRIMP zircon U-Pb age of 315±5 Ma, suggesting that it is a magmatic intrusion formed in the middle Variscan. Its country rocks are the Middle Devonian Formation and Lower Carboniferous Baogutu Formation. This SHRIMP zircon U-Pb age furnishes a reliable chronological basis for the determination of the age of formation of the Late Paleozoic Ba＇eduke island arc zone in western Junggar.
出处
《地质通报》
CAS
CSCD
北大核心
2006年第8期992-994,共3页
Geological Bulletin of China
基金
中央专项基金项目<新疆西准葛尔巴尔鲁克山地区1:5万区域地质调查>(编号:200342001022)的成果。
