【摘要】 1981年7月至8月,我们对博格达北坡冰川进行了初步的结构冰川学研究。 结构要素,诸如沉积和动力结构以及冰川波动所造成的结构,分别在4号和5号冰川的表面做了观测,并绘制了这两条冰川的结构图。 4号冰川结构简单,而5号冰川则比较复杂。我们对5号冰川的内部结构分类做了尝试。 观测了这两条冰川的冰面运动和冰层中岩屑的产生。测量了5号冰川表面变形和末端位置的变化。该冰川平均日变化速度5—10厘米,从1981年的8月初到9月初其末端后退约1—3米。更多还原

【Abstract】 Preliminary structural glaciological studies of the glaciers on the north slope, of Mt. Bogda were carried out during July-August, 1981.The distributions of structural elements, such as depositional and dynamical structures and also structures resulting from glacier fluctuations, were observed on the surface of Glaciers D-4 and D-5 and structural maps of both of glaciers were made.In contrast to the structure of Glacier D-4. which is simple and monotonous. that of Glacier D-5 is more complicated. Clarification of the inner structure of Glacier D-5 is attempted.The surface ice movement and the occurrence of the debris laden layer were observed on both glaciers. Surface deformation and the change of terminus position were measured on Glacier D-5. Mean daily velocities are on the order of several cm per day and the glacier terminus retreated about 1 to 3 meters per month in late summer. 1981 .更多还原