新疆库鲁克塔格地区新元古代南华纪-震旦纪火山岩地球化学特征研究意义

Geochemical characteristics and its significance of Neoproter-ozoic Nanhua Sinian volcanic rocks in Kuluktag area,Xinjiang

新疆塔里木板块库鲁克塔格地区南华纪、震旦纪地层发育十分完整,久已中外驰名,受到前寒武纪研究界的瞩目。通过对库鲁克塔格东段西水泉地区、中库鲁克塔格兴地北地区、西库鲁克塔格西山口地区的岩石化学、微量元素、稀土样品数据采集和收集,研究库鲁克塔格群火山岩地球化学特征,讨论新元古代塔里木板块裂解形成发展到平合过程。

The Nanhua and Sinian strata in the Kuluktag area of Tarim plate in Xinjiang,are well-developed and well-known both at home and abroad,which attracted the attention of the Precambrian research community.Based on the data collection of petrochemistry,trace elements and rare earth samples from Xishuiquan area in the eastern part of Kuluktag,the northern part of Xingdi area in middle Kuluktag and Xishankou area in west Kuluktag,the geochemical characteristics of volcanic rocks in Kuluktag group are studied,and the process from formation to the subduction of the cracking Tarim plate in Neoproterozoic are discussed.