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通过对黄山地区歙县—屯溪—休宁一带侏罗纪、白垩纪岩石地层、生物地层和年代地层的研究,重新厘定了该区域侏罗纪、白垩纪地层序列,将原有地层划分为10个岩石地层单元。新建上侏罗统屯溪组,更新了对该区域晚侏罗世沉积缺失的认识;通过岩石地层及生物地层研究,重新厘定了下白垩统新潭组,修正了原1/5万地质调查对该区域白垩纪地层的划分。进而以地层发育特征的分析为基础,对该区域侏罗纪—白垩纪地层的沉积演化过程进行了探讨。
Through the study of Jurassic, Cretaceous lithostratigraphy, biogenic strata and chronostratigraphy in Juxian-Tunxi-Xiuning area of Huangshan area, the sequences of Jurassic and Cretaceous stratigraphy in this area are re-determined, and the original strata are divided into Ten rock formation units. The Upper Jurassic Tunxi Formation was newly established and the understanding of late Jurassic sedimentary absence was updated. Through the study of lithostratigraphic and biostratigraphy, the Lower Cretaceous Xintan Formation was re-determined, and the original 1/50000 geological survey The division of the Cretaceous strata in this area. Based on the analysis of stratigraphic development characteristics, the sedimentary evolution of the Jurassic-Cretaceous strata in the area is discussed.