翁格拉克拉南井田F_3断层的探查

Ascertainment of F_3 Fault Based on Drilling and Logging Data in Wenggelakela Southern Coal Mine

断层的查明程度主要由勘探手段和勘探程度决定,然而翁格拉克拉南井田在勘探阶段,仅有单孔揭露F3断层,勘探程度尚低。根据地质钻探和测井资料,通过分析翁格拉克拉南井田F3断层带的岩性及测井曲线特征,并结合相邻钻孔的岩性对比分析,初步判定该断层为一张性弱导水、落差约16 m的正断层。

The ascertainment of fault is determined by exploration means and exploration maturity.Nevertheless,during the period of exploration stage,there is only one drilling hole which exposes F3 fault.The exploration degree shows low.Based on drilling and logging data,lithology in fault zone and features of logging curve in Wenggelakela southern coal mine were analyzed,and combined with lithologic correlation in adjacent drilling holes,the preliminary conclusion shows that F3 fault is tensional weak hydraulic conductivity normal fault,which drop height is 16 m.