川东南地区山地低降速带研究

Low Subweathered Zone in the Southeast of Sichuan Province

川东南地区地势起伏变化大,新老地层都有出露,低降速层的速度和厚度在不同的地段差异较大。通过微测井的方式进行低降速带调查,可以准确的确定该区低降速带的分布情况,为该区进一步的地震勘探提供激发参数。

In the southeast Sichuan Province,terrain is undutated severely.Both old and new strata are exposed,the speed and thickness of low subweathered zone is greatly different in different zones.The low subweathered zones are investigated by using micro-log,by which the distribution of low subweathered zones can be determined accurately,thus excitation parameters are provided for future seismic exploration.