【摘要】 川南地区中、下三叠统主要包括雷口坡组、嘉陵江组、铜街子组及飞仙关组,根据岩石薄片、钻井和地震等资料,以岩石和钻井层序地层研究为主要依据,把川南地区中、下三叠统划分5个三级层序,主要发育有局部暴露层序不整合界面和岩性岩相转换界面2种层序界面。更多还原

【Abstract】 There are Leikoupo Formation,Jialing Formation,Tongjiezi Formation and Feixianguan Formation of the Middle and Lower Triassic in Southern Sichuan basin.The Middle and Lower Triassic gas field,southern Sichuan may be divided,on the basis of thin sections,well logs and seismic data,into five third—order sequence.It mainly includes partial exposure sequence unconformities interface and lithology and lithofacies conversion interface.更多还原