西藏昌都玉曲河源区冰川构造的性质、特征与演化

李德文, 马保起, 田勤俭, 史嘉骥, 赵杰

The nature， characteristics and evolution of glaciotectonics in source area of the Yuqu River， Changdu， Tibet， China

Dewen LI, Baoqi MA, Qinjian TIAN, Jiaji SHI, Jie ZHAO

图8 尼恰村北采坑南西壁冰川构造特征［镜向南西，具体位置见图1（c）中P3点，西藏八宿县郭庆乡。出露厚度约2.5 m。粗线代表大层界线，细线代表大层内变形特征，虚线代表脆性变形特征。描述见正文］

Fig. 8 Glaciotectonic feature of the southwest wall of the mining pit to north of Nicha Village， with a lens facing southwest. Point P3 in Fig.1 （c） for the location， Guoqing Township， Basu County， Tibet. The exposed thickness is about 2.5 m. The thick line represents the boundary of the large layer， the thin line represents the deformation characteristics within the large layer， and the dotted line represents the brittle deformation characteristics. See the text for the description