庐山冰川地貌释疑

ON THE GLACIAL LANDFORMS IN LU SHAN

本文认为①大坳完全能归到冰斗之列,并非由冰缘雪蚀和融冻泥流作用拓宽、并经流水改造所成的地貌;②王家坡U谷是冰川槽谷,不必求助于构造和岩性控制下的流水、风化作用成因;③山麓的垅岗是终碛垅,并非泥石流“龙头”堆积的“孤岛”;④冰期庐山气候有发育冰川的寒冷冰期气候,而湿热气候并非冰期则是间冰期气候。

The authors propose the following arguments: 1) Da Ao is really cirque. Its landform was not crcated by periglacial snow erosion or solifluction; nor water flow. 2) 'U' shaped valley of Wang Jia Po is a glacial trough. It was not formed from water flow or weathering under the control of the structure or nature of the uocks. 3) Ridges and hill locks in the mountain foot are the end moraine bars, not the 'isolated islands' piled by the mudflow. 4) The climate of Lu Shau in the glacial stage was the cold one which could cause the glacier. wet and hot climate exists in the interglacial stage, not in the glacial stage.