paleochannel

and the paleochannel that formed during regressive of sea level is the path of salt-water intrusion.

海退后陆源碎屑在滨海地区沉积形成了巨厚的古河道。

This article discusses and summarizes uraniferous characteristics of paleochannel depositional systems based on depositional characteristics of fluvial systems and geochemical behaviour of uranium.

文通过对各类河流沉积特的研究，结合铀的地球化学，讨河流沉积体系的赋铀性。