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亚极地型的天山乌鲁木齐河源1号冰川底部,存在着三种流动方式:1)底面滑动;2)底碛的变形;3)穿过底碛内剪切面或剪切带的运动。这三种机制作用于冰川最底层1—2％的有效厚度内,它们单独或互相结合的运动占冰川全部运动的70％以上。
There are three types of flow patterns at the bottom of glacier No. 1 in the sub-polar Tianshan Mountains in Urumqi: 1) sliding on the bottom surface; 2) deformation on the bottom moraine; and 3) movement through the shear zone or shear zone in the end moraine. These three mechanisms act within 1-2% of the effective thickness of the lowest glacier, and they alone or in combination account for more than 70% of the total glacier movement.