地质通报2016，Vol.35Issue(5)：642-647,6.
西藏改则县多龙矿集区发现岩墙岭蛇绿岩残片
Yanqiang Ling ophiolitic remnants has been discovered in Duolong ore concentration area, Gêrzê County, Tibet
摘要
Abstract
The Duolong ore concentration area, located on the northern margin of Bangong Co-Nujiang River suture zone, possess⁃es giant prospective typical gold-rich porphyry copper deposits in Tibet. The petrogenesis of the intrusions and the ore-forming pro⁃cesses of the Duolong ore concentration area are the key points for solving the tectonic evolution of Bangong Co-Nujiang River Ocean. Recently, Yanqiang Ling ophiolite belonging to Bangong Co-Nujiang River ophiolite belt was discovered on the southern side of the Duolong ore concentration area. Yanqiang Ling ophiolite which was tectonically emplaced in the Jurassic flysch sediments mainly consists of sheeted dykes, pillow basalt and silica rock. Mylonite is widely developed in the contact area between the country rock and the Yanqiang Ling ophiolite. Combined with previous studies, the authors hold that the Duolong ore concentration area de⁃veloped on the basis of accretionary wedge and was in extensional setting during the Early Cretaceous. The discovery and determina⁃tion of Yanqiang Ling ophiolite further constraint the geological setting of the Duolong ore concentration area and provide a new clue for extension and study of Bangong Co-Nujiang River suture zone.关键词
青藏高原/班公湖-怒江缝合带/多龙矿集区/岩墙岭蛇绿岩/席状岩墙群Key words
Tibetan Plateau/Bangong Co-Nujiang River suture zone/Duolong ore concentration area/Yanqiang Ling ophiolite/sheeted dykes分类
天文与地球科学引用本文复制引用
许伟,胡培远,王明,陈景文,张天羽,李馨..西藏改则县多龙矿集区发现岩墙岭蛇绿岩残片[J].地质通报,2016,35(5):642-647,6.基金项目
国家自然科学基金项目（批准号41272240）、中国地质调查局项目（编号12120113036700）和中国地质科学院地质研究所基本科研业务费项目 （）
