措勤区幅地质调查新成果及主要进展  

New results and major progress in regional geological survey of the Coqên District Sheet

作　　者：江元生[1] 周幼云[1] 王明光[1] 彭波[1] 徐天德[1] 

机构地区：[1]四川省地质调查院区域地质调查所,四川双流610213

出　　处：《地质通报》2004年第5期512-515,共4页Geological Bulletin of China

基　　金：中国地质调查局青藏高原1:25万措勤区幅(H45C002001)地调项目成果。

摘　　要：新建上二叠统敌布错组,发现其中含有Noeggerthiop-Pterophyllum混生植物群,并确定该组与下伏地层为角度不整合接触关系。在冈底斯岩浆弧中新发现第四纪全新世火山岩,获取一批同位素定年资料,进一步丰富了冈底斯岩浆演化的时空格架。The Upper Permian Dibucuo Formation is newly established. It contains the Noeggerthiop-Pterophyllum mixed flora and has an unconformable contact with the underlying strata. Holocene volcanic rocks are found in the Gangdise magma arc and a group of isotopic dating data are obtained, which further enriches the temporal-spatial framework of the magmatic evolution in Gangdise.

关 键 词：上二叠统敌布错组 混生植物群 冈底斯岩浆弧 全新世火山岩 

分 类 号：P623.12[天文地球—地质矿产勘探]