【摘 要】
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概要介绍了四川西部地层多重划分对比研究成果──修订后的四川西部地层区划和岩石地层序列。该成果主要进展是系统修订了全部岩石地层单位,全面理顺和完善了岩石地层序列,在构
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概要介绍了四川西部地层多重划分对比研究成果──修订后的四川西部地层区划和岩石地层序列。该成果主要进展是系统修订了全部岩石地层单位,全面理顺和完善了岩石地层序列,在构造结合带上建立了特殊的岩石地层层序。新建了前震旦纪的下喀莎组,确定了盐井群的地质时代为早震旦世,并提出将九顶山地层小区归属于扬子地层区的新见解。
This paper presents a summary of the comparative research results of multi-division stratigraphy in the west of Sichuan province-the revised sequence of stratigraphic division and lithostratigraphy in western Sichuan. The main progress of this achievement is the systematic revision of all lithostratigraphic units, the complete rationalization and perfection of the lithostratigraphic sequences, and the establishment of special stratigraphic sequences in the structural belt. The new Qisha Formation of the Pre-Sinian was established. The geological epoch of the salt well group was determined to be Early Sinian, and a new view was given to attribute the Jiudingshan formation to the Yangtze formation.
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