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青白口群地层学的研究,涉及我国震旦系的范围和界线。无产阶级文化大革命以来,由于全国区域地质调查工作的丰硕成果和对震旦系的深入研究,目前有更好的条件重新讨论青白口群的层序、界面、内部分组、区域分布、对比及其在地层柱中的位置。 一、青白口群岩石地层单位的讨论 表1概括地表示青白口群及其地层单位划分和时代界线的研究史略。从这个历史简
Qingbaikou Group stratigraphy study, involving the scope and boundaries of Sinian in our country. Since the Great Proletarian Cultural Revolution, due to the rich achievements of the national regional geological survey and in-depth study of the Sinian system, there are better conditions to re-discuss the sequence, interface, internal subgroups, regional distribution, contrast and its Position in the formation column. I. Discussion of the Qingbaikou Group lithostratigraphic units Table 1 summarizes the research history of the Qingbaikou Group and its stratigraphic units and the boundaries of the time. Jane from this history