【摘要】 最近的研究发现，Ｑ＿３形成的成都粘土中不仅发育有大量的构造裂隙，而且还发育有小断层。鉴于这一发现对环境地质和工程地质均有重要意义，本文将对这一问题作简要介绍。更多还原

【Abstract】 It is discovered recently that there exist tectonic fractures and faults in Chengdu clay which formed in Q₃．This discovery is very important not only in the meaning of engineering geology，but also in the meaning of environmental geolo-gy，So，this problem is discussed in this paper.更多还原