【摘要】 在对安徽省内寒武系典型或标准地层剖面测量和总结的基础上,据"中国地层表(2014)"的四分方案,对区内寒武系划分进行了修订。安徽省寒武系顶底及各统界线也做了相应修订,底界年龄为541 Ma,纽芬兰统与第二统界线的年龄为521 Ma,第二统与第三统界线的年龄为509 Ma,第三统与芙蓉统界线的年龄为497Ma,顶界的年龄为485.4 Ma。更多还原

【Abstract】 Based on the newly measured Cambrian sections and the newly adopted ‘Stratigraphic Chart of China’with the four-fold subdivision of the Cambrian System,the Cambrian stratigraphy of Anhui Province is revised and updated.The numerical ages of the base of the Cambrian System,the provisional Series2,Series 3,and the Furongian Series is 541 Ma,521Ma,509 Ma,and 497 Ma respectively.The Cambrian-Ordovician boundary is 485.4 Ma.更多还原