摘要
一.引言 旋卷构造首先见于四川北碚北温泉附近,以后次第见于浙江桐庐同春庙紫坊坞等地。它们都是一些旋轴水平的旋卷构造,是一些小型结构,其中主要部分均由帚状节理的弯曲裂面构成。
The region under consideration is situated along the margin of north eastern part of the Tibetan plateau,lying about long.89-97°30′E.and lat.37-39°N.In the northern part of the Tsaidam basin,rises a series of arched mountain ranges,the Alkin and the Chilien,with its convex front facing north.It is composed mainly of crystalline gneiss,schist and marble together with the palaeozoic and Jura-Cretaceous sediments being exposed on the southern slope of the ranges.Going from west to east,the axes of compressed folds and the strikes of thrusts turn gradually from ENE to NW and then to E-W as they appear extending on the southern side of the range.
作者
孙殿卿
段万倜
邓乃公
应绍奋
T.C.Sun;W.T.Twan;N.K.Teng;S.F.Yin(Ministry of Geology,People's Republic of China;Institute of Geology,Academia Sinica)
出处
《地质学报》
1956年第4期417-442,563-583,共47页
Acta Geologica Sinica
