摘要
在2003年1∶25万玉树县幅区域地质调查中,发现玉树地区三叠纪地层呈角度不整合覆盖于石炭纪—二叠纪地层之上,从而为确定西金乌兰-金沙江洋的封闭时代提供了确切的地层学依据,进一步证明了西金乌兰-金沙江带是华力西造山带。这一发现对认识古特提斯洋-陆转化过程具有重要意义。
During 1:250000 regional geological survey of the Yushu County Sheet in 2003, it was found that in the Yushu area Triassic strata rest with angular unconformity on Carboniferous-Permian strata, thus providing definite stratigraphic evidence for the determination of the closing age of the Xijir Ulan-Jinsha River Ocean and further proving that the Xijir Ulan-Jinsha River junction zone is Variscan orogenic belt. This discovery has great significance for the understanding the process of the ocean-land transformation of the Paleo-Tethys.
出处
《地质通报》
CAS
CSCD
北大核心
2004年第5期616-619,共4页
Geological Bulletin of China
基金
中国地质调查局青藏高原1:25万玉树县幅(I47C003001)地调项目成果。
