引言新疆可可托海一二台断裂是中国大陆典型的剪切带之一,1931年在其不连续部位发生了八级地震,在地表产生了规模巨大的地震破裂带,并伴有罕见的水平位移量。关于1931年八级地震产生的地震破裂带的分布及其运动特征和构造应力已有过不少研究.一九八四年七月我们有机会参加了新疆地震局在可可托海一二台断裂进行的野外考察,下 Introduction One or two faults of the Kekeatuohai, Xinjiang are one of the typical shear zones in China. An eight-magnitude earthquake occurred in its discontinuity in 1931, resulting in a massive earthquake rupture zone with a rare level Displacement. There have been quite a few studies on the distribution of earthquake rupture zone and its tectonic stress and tectonic stress caused by the M 818 earthquake in 1931. In July 1984 we had the opportunity to participate in the Xinjiang Seismological Bureau’s Under field investigation, under