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2010年以来全国地层委员会发布了中国地层表新标定的试用方案,其中长城系(Pt12)限定在(1.8~1.6Ga);蓟县系(Pt22)限定在(1.6~1.4Ga);待建系(Pt3~42)(1.4~1.0Ga);青白口系(Pt13)限定在(1.0~0.78Ga);南华系(Nh)限定在(780~635Ma)及震旦系(Z)限定在(635~541Ma)。新年表突出3个方面的标定:1)对长城系和蓟县系的年代学限定;2)依据蓟县剖面上新的锆石U-Pb年龄的信息,在中国年表中提出了“待建系”位置;3)对南华下限的厘定。新年表对中国地质调查局近年来启动了第二代“中国各省地质志”修编起到了重要的标定作用,对突出的前寒武纪地层划分和对比问题,依据新地层年表
Since 2010, the National Stratigraphy Commission has issued a trial scheme for a new calibration of stratigraphic strata in China, of which the Great Wall series (Pt12) is limited to (1.8-1.6Ga), the Jixian series (Pt22) is limited to (1.6-1.4Ga) Pt3 ~ 42) (1.4 ~ 1.0Ga); the Qingbaikou Estuary (Pt13) is limited to (1.0 ~ 0.78Ga); the South China Straits (780 ~ 635Ma) and Sinian (Z) 541Ma). The New Year Table highlights three aspects of calibration: 1) the definition of geochronology of the Great Wall and Jixian; and 2) based on the information on the new zircon U-Pb age in the Jixian section, Department “position; 3) the determination of the South China minimum. New Chronology of the Chinese Geological Survey in recent years launched the second generation of ”Geological" provinces of China provinces played an important calibration of the role of outstanding Precambrian stratigraphy and comparison of the division, according to the new formation chronology