青藏公路沿线的多边形-脉构造有着广泛的分布(图1),但对这些构造的属性存在着两种不同的看法,有的认为是原生土脉,有的则认为是冰楔假型。本文试图对青藏公路沿线的各种多边形-脉构造作更进一步的分析,确定属性,以利于这一重要古气候标志更合理的应用。 The polygons-vein structures along the Qinghai-Tibet Highway have a wide range of distributions (Fig. 1). However, there are two different views on the nature of these structures, some of them considered as native veins and others as ice wedges. This paper attempts to further analyze and determine the properties of various polygons and veins along the Qinghai-Tibet Highway in order to facilitate the more reasonable application of this important paleoclimatic marker.