济源上三叠统古土壤及其意义

河南省济源地区上三叠统曲流河体系中发现赋存于洪泛平原和天然堤沉积中的古土壤,湖泊体系中则发现滨岸泥滩和湖泊淤浅古土壤。本文总结了其野外识别标志,探讨其成因,并讨论了将其应用于地层对比、层序地层学研究、盆地和沉积环境分析等方面的前景。

Features and significance of paleosols from the Upper Triassic of Jiyuan,Henan

In this paper,paleosols from the Upper Triassic meandering river and lacustrine systems in Jiyuan,Henan Province is studied.The paleosols in meadering river system in- clude those on flood plain and levee,and the paleosols in lacustrine system include those on mud foreshore and mud bier exposed from shallow lake.Recognition markers of paleosols on outcrop,their origins,and the possibility of applying paleosols to sequential stratigraphy, sedimentary environment analysis and stratigraphic correlation are discribed and discussed.