一、简介在康二城矿三坑地质报告的修改过程中,12剖面观_18钻孔的实际资料是:在60 m以上出现45.25 m的破碎带,在98.25 m以下见75.17 m厚的奥陶系灰岩(O_2),下面又见到38.07m砂岩、泥岩(图1)。怎样解释这种反常现象呢?有人说是存在一条逆断层,也有人说存在一条断层面为S形的正断层。但从相邻的20、21地质剖面及钻孔资料、岩石露头来看,这落差大于100 m的断层,在东西南北各方向均无表现。通过分析 I. INTRODUCTION In the process of revising the geological report for the Three Pit in the Second Erhkang Mine, the actual data of the cross-section of the 12th borehole is that there is a 45.25-m crushing zone above 60 m and the depth of 75.17 m Department of limestone (O_2), see below 38.07m sandstone and mudstone (Figure 1). How to explain this anomaly? Some people say that there is a reverse fault, some people say there is a normal fault S-shaped fault. However, from the adjacent 20,21 geological sections and borehole data and rock outcrops, the fault with a difference of more than 100 m does not show any direction from east to west. after analysis