小断层垂向分辨率与反射波特征──以淮南谢桥矿区为例

Vertical Resolution and Reflected Wave Features of Minor Faults

采区地震勘探是以查明煤系地层小断层、小褶曲细微地质构造为目标．本文以淮南谢桥煤矿采区高分辨率三维地震资料为例，阐述了小断层垂向分辨率及其反射波特征．提出了小断层垂向分辨率与采样间隔△ｔ，平均速度及噪声水平有关；反射波时差特征是识别小断点的主要标志．

The aim of seismic exploration in a panel is to ascertain the minor faults and folds,the subtle geological structures in coal measures. The vertical resolution and reflection features of minor faults are elaborated on the basis of high resolution 3-D seimic data obtained from Xieqiao coal mine, Huainan. The paper suggests that the vertical resolution of minor faults is related to the time sample interval △t, the average velocity and the noise level, and that.The time difference features of reflected waves are the main marks to distinguish minor faults.