Abstract
Abstract:High‐quality zircon U‐Pb ages acquired from Meso‐ and Neoproterozoic strata in North China in recent years has provided a high‐resolution chronostratigraphic framework for dating. A basis of this high‐level chronostratigraphic system provides the foundation for a global Precambrian study and stratigraphic correlation and so recent geological studies have focused attention on systemic SHRIMP zircon dating. A chronology of Meso‐ and Neoproterozoic strata and the time of origin of the overlying Changcheng System is given on the basis of new SHRIMP zircon dating from the Qianxi Complex and diabase of the Chuanlinggou Formation. A new tectonostratigraphy for a Neoproterozoic chronostratigraphic framework in the southeastern margin of the North China continent is underpinned by the new SHRIMP zircon dating of a Neoproterozoic mafic magma diabase in the Jiao‐Liao‐Xu‐Huai Sub‐Province.
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