There are many moraineslopes which are high and steep along the north bank of Purlung Tsangpo River because of construction of Sichuan-Tibet Highway.

在帕隆藏布北岸的川藏公路上,有许多冰碛高陡切坡。

The research area is located at the head area of Urumqi Rjver，above 3000m and in al-pine periglacial environment．On the moraines of the Last Glaciation and Neo一glaciation al-pine meadow soils develop from 3000 to 3700 m.

末次冰期冰碛和新冰期冰碛上发育高山草甸土，海拔３０００－３７００ｍ。

This paper is intended to present a preliminary model of transfo(?) mation from moraineto the deposits of glacial debris flow, to describe the distinguishing marks between the two types of deposits, and to compare and study some characteristics of granularity, light and heavy mineral, clay mineral and gravel fabric of them.

继初步建立起冰碛转化为冰川泥石流堆积模式及其沉积判别标志后,又对它们的粒度特征、矿物特征与砾石组构特征等进行了悉心研究。