地质通报2013，Vol.32Issue(8)：1277-1282,6.
内蒙古陶海营子地区林西组形成时代——来自侵入岩脉LA-ICP-MS锆石U-Pb年龄的证据
The age of Linxi Formation in Taohaiyingzi area, Inner Mongolia: Constraint from the evidence of the LA-ICP-MS zircon U-Pb dating for the intrusive vein
摘要
Abstract
The previous studies of the Linxi Formation in Alukeerqin area show that the Late Permian Linxi Formation should be regarded as the most potential hydrocarbon layer as well as the most potential series of strata for exploration of the Upper Paleozoic in the middle-southern Da Hinggan Mountains; nevertheless,no further data are available concerning the determination of the deposition age of Linxi Formation.LA-ICP-MS zircon U-Pb dating of the intrusive granitic vein yielded an age of 242.0Ma±3.7Ma (MSWD=2.8,N=19),which implies that the emplacement of the dike occurred in the early period of Middle Triassic.The age can be used as indirect evidence of the upper limit of the sedimentation for Linxi Formation in this area.关键词
林西组/侵入岩脉/LA-ICP-MS锆石U-Pb定年/沉积时限/陶海营子地区/大兴安岭中南段Key words
Linxi Formation/ intrusive vein/ LA-ICP-MS zircon U-Pb dating/ deposition age/ Taohaiyingzi area/ Da Hinggan Mountains分类
天文与地球科学引用本文复制引用
郜晓勇,卞雄飞,李永飞,公繁浩,苏飞..内蒙古陶海营子地区林西组形成时代——来自侵入岩脉LA-ICP-MS锆石U-Pb年龄的证据[J].地质通报,2013,32(8):1277-1282,6.基金项目
中国地质调查局项目(编号:1212010813070、1212011085473、1212011121085) （编号:1212010813070、1212011085473、1212011121085）
