This paper includes a systematic analysis and correlation study on the sporopollen assemblage, stratigraphic sequence and geochronology of the Siwangou red bed section in Yaojie, Gansu.
对窑街寺湾沟-炭洞沟红层孢粉和地层层序及时代进行了系统分析与对比研究。
To recognize the lithology of strata is a very important task of such geological studies as stratigraphic correlation and sedimentary facies analysis.
识别地层岩性是在地层对比、沉积相分析等地质研究中的重要任务。
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