摘要
板内造陆变形以平行不整合为标志。它是一个容易失稳的界面,后期构造变动中常常转化成拆离面。中浅构造层次形成脆性拆离断层(拆离带);中深构造层次则形成韧性剪切断层(韧性剪切带)。板内造陆变形及其后期演化改善了储集岩性能,影响了油气运移和聚集。后期转化还可以使油气重新运移,也可以形成新的油气圈闭,同时深刻影响油气演化,有利于再次生油气。
Parallel unconformity is the mark of intraplate epeirogenic deformation. It is an unstable surface and always transfers into a detachment surface during later tectonic movement. When located in mid-superstructure level, it transfers into brittle detachment fault (detachment zone). While in mid-infrastructure level it turns into ductile shear fault (ductile shear zone). Intraplate epeirogenic deformation and its later evolution may improve the ability of reservoir and affect the migration and concentration of oil and gas. The later transformation also can promote oil and gas to remigrate and form new oil and gas trap, as well as affect profoundly the evolution of oil and gas, as a result fevoring to reproduce oil and gas.
出处
《地质科技情报》
CAS
CSCD
北大核心
1996年第1期67-70,共4页
Geological Science and Technology Information
关键词
板内造陆变形
平行不整合
顺层拆离
油气地质
油气运移
油气聚集
intraplate epeirogenic deformation (parallel unconformity)
detachment along bedding
oil and gas geology
