palaeocurrent meaning in English

古流
古水流

Nangqian ; basin ; petrology ; deposition system ; palaeocurrent
囊谦盆地岩相沉积体系古流向
The integrated study of heavy mineral , palaeocurrent direction , and sedimentary facies distribution has disclosed that the detritus are derived chiefly from the southeast and east - northeast during the deposition of the yanchang formation in the late triassic . the variations in the palaeocurrent directions have consequences for the development and distribution of the sequence stratigraphy and sedimentary facies of the yanchang formation . the major and trace element analyses of the mudstones from the yanchang formation also show that the lake waters would be freshened to brackish
初次通过泥岩常、微量元素测试资料和沉积学分析得出，延长期富县探区湖泊水体属于淡水-微咸水，微量元素含量及其比值在剖面上的变化对延长期湖平面升降和气候的演变具有良好的响应，湖平面升降、气候演变对层序地层的发育有着直观而又重要的影响。