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本文在回顾了“三门系(组)”一词的由来和演化以及在使用中所出现的问题之后,认为“黄三门”和“绿三门”二词已不宜继续使用,并建议应以“多重地层学”的概念来重新核定和统一“三门系(组)这一地层单元术语的准确涵义,以利于克服其在目前使用中的混乱局面
After reviewing the origin and evolution of the term “Sanmen (group)” and its problems in use, this article considers that the terms “Huangsanmen” and “Sanmenmen” are no longer suitable for use and suggest that The concept of “multiple stratigraphy” has been used to re-verify and unify the precise meaning of the term “Sanmen (strata)” as a strata unit in order to overcome its chaotic situation in current use