断槽 meaning in English

trough fault

Then this paper discusses the main control factors of lithological traps . the types , features and the distributional area of theses depositional systems are dominated by macro paleo - geomorphic units . and the exact position of these lithological traps are determined by local paleo - geomorphic units
古宏观地貌(凸起、洼陷与大型沟槽)控制了沉积体系的类型、沉积特征及至储集体的分布范围；局部古地貌(断槽、地堑、断阶、沟谷等)决定了岩性圈闭发育具体位置。