Yuhuatai
gravel layer is an important component of Late Cenozoic strata in the middle
and lower reaches of Yangtze River. As a significant record of information of
neotectonics, changes of late Cenozoic geological environment, and evolution of
the Yangtze River, the Yuhuatai gravel layer has been highlighted for a long
time. Through comprehensive analysis and comparison of lithostratigraphy, geomorphology
stratigraphy, biostratigraphy and chronostratigraphy, we can establish
stratigraphic sequence of Yuhuatai gravel layer. The 40Ar/39Ar, K-Ar dating
methods, and paleo-magnetostratigraphy of all basalt layers with interbeded
gravel layers should be conducted in association with cosmogenic nuclide dating
and ESR (Electron Spin Resonance) dating method in order to establish the
chronostratigraphy of the study area.
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