安徽黄山地区侏罗纪、白垩纪地层序列研究新进展  

NEW RESEARCH PROGRESS IN JURASSIC AND CRETACEOUS STRATIGRAPHY OF THE HUANGSHAN AREA,ANHUI PROVINCE

作　　者：任鑫鑫[1,2] 黄建东 洪天求[1] 毕治国[3] 

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009 [2]安徽省地质博物馆,安徽合肥230001 [3]安徽省地质矿产勘查局327地质队,安徽合肥231607

出　　处：《地层学杂志》2017年第2期209-215,共7页Journal of Stratigraphy

基　　金：安徽省公益性地质项目"皖南地区恐龙化石群调查和初步研究"(2011-g-32)资助

摘　　要：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。Based on integrative lithostratigraphy, biostratigraphy, and chronostratigraphy, Jurassic and Cretaceous strata in the Huangshan area are divided into ten lithostratigraphic units. The newly defined Tunxi Formation of the Upper Jurassic is described, and this challenges the traditional view that Upper Ju- rassic strata are missing from this area. Based on lithostratrgraphic and biostratigraphic data, the Xintan Formation is redefined and the Cretaceous stratigraphy of the 1.50 000 geological map is revised. The re- vised Jurassic-Cretaceous stratigraphy of the Huangshan area helps to better understand the Mesozoic sedi- mentary history of this area.

关 键 词：岩石地层.生物地层 年代地层 沉积演化 侏罗纪 白垩纪 黄山地区 安徽 

分 类 号：P534.52[天文地球—古生物学与地层学] P534.53[天文地球—地质学]