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关于前寒武系—寒武系界限,工作组把中国云南省梅树村剖面正式确定为寒武系底邸的提议已延期,有待进一步研究对比后再加以确定。本文回顾了1972年以来对界限的调查情况,并略述了进展中的工作打算,以解决遗留问题。序言
Regarding the Precambrian-Cambrian boundary, the proposal of the Working Group to formally determine the profile of Meishu Village in Yunnan Province of China as the Cambrian basement has been postponed pending further study and comparison. This paper reviews the survey of the boundaries since 1972 and outlines the work in progress to address the remaining issues. Preamble