【摘要】 在岩心观察、薄片鉴定及地震分析基础上,开展马家沟组岩溶地质及其地球物理响应分析,综合运用印模法和残余厚度法恢复马家沟组顶部岩溶古地貌形态。研究表明研究区马家沟组顶部发育岩溶洼地、岩溶斜坡及岩溶高地3种古地貌单元,马家沟组岩溶古地貌具有"一高地、两斜坡、两洼地"的特点,岩溶洼地地层保存基本完整,岩溶高地普遍缺失马五₃段及以上地层,而岩溶斜坡的地层缺失情况介于岩溶洼地和岩溶高地之间。更多还原

【Abstract】 Based on core observation,slice identification and seismic data,the geological and geophysical response of karst of Majiagou Formation have been studied.The karst paleogeomorphology have been rebuilt by applying impression method and residual thickness method.Three geomorphic units including karst depression,karst slope and karst highland above the Majiagou Formation are developed,which are characterized by "one highlands,two slopes and two depressions".Formations of the karst depression are mostly well preserved,but the section Ma-5₃ and the stratum above it are absent in the karst highland,while the karst slope falls in between these two types.更多还原