1980年夏季,我们参加了由英国皇家地理学会发起,由中、巴、英三国学者联合组成的考察队,对位于巴基斯坦境内的喀喇昆仑山洪扎河谷的冰川和地貌作了为时一月的野外考察。

The landform development and Quaternary Glaciations in Northern Pakistan are of great significance to the Pleistocene Chronology and Geomorphology of High Asia. Based on the data collected during our visiting Pakistan in 1981, two main erosion surfaces are identified in the piedmont belt of the Himalayas. One is the Potwar Plateau, with an average elevation about 500 meters, and the other a dissected planation surface at an elevation about 1,600m above sea level They are progressively younger from north to south, ranging from 1.5 M. Y. B. P. to 0.4 M. Y. B. P. This reflects the southward expansion of the rising Hima-layas.