首页 | 本学科首页   官方微博 | 高级检索  
     


An outline of the geology of the Afghan Pamirs
Authors:M.F. Buchroithner  
Abstract:
In the Great Afghan Pamir (Pamir-e Kaland) the following formations can be distinguished, from bottom to top: Wakhan Fm. (3000–4000 m thick anchimetamorphic slates and sandstones with frequent intercalations of quartzites and rare beds of crystalline limestones; conodonts of Lower Triassic); Qal'a-e Panja Tonalite (epimetamorphic, cataclastic); Qal'a-e Ust Gneiss (meta- and orthogneisses); Issik Granodiorite (batholite of the Afghan Pamirs, equivalent to Baba Tangi-Lunkho Granodiorite; xenoliths, flow structures and diaphtoritic portions; Upper Jurassic to Eocene). The tectonics are determined by the Peripheric Southern Fault of the Pamirs and the Wakhan Fault, showing vertical dislocation up to 1000 m and sinistral thrusting in connection with the Western Himalayan Syntaxis. Late Variscan and Alpine deformations and an intensive middle Alpine metamorphism can be observed. Interpretations of satellite pictures lead to an insertion of the regional tectonic features into the model of plate tectonics of the Himalayan arc.
Keywords:
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号