山东程戈庄—铺集地区第四纪地层划分及地质特征

Quaternary Stratigraphic Division and Geological Characteristics in Chenggezhuang-Puji Area in Shandong Province

摘要:

在程戈庄幅、铺集幅浅覆盖区地质填图工作中，对区内第四系采用地面调查与第四系钻探相结合的方式，开展了岩石地层、年代地层，磁性地层及沉积环境等方面的工作。初步建立了地层格架，区内第四纪地层划分为于泉组、大埠组、大站组、黑土湖组、临沂组及沂河组6个组级地层单位；分析了各年代地层单位的沉积环境及沉积相；开始了年代学研究，区内第四系形成于中更新世以后，形成年龄均晚于0.781Ma。

Abstract:

In the shallow covered geological mapping of Chenggezhuang-Puji area, the combination of ground investigation and quaternary drilling has been adopted for geological mapping of the Quaternary system, and the lithostratigraphy, chronostratigraphy, magnetostratigraphy and sedimentary environment have been carried out. The Quaternary strata are divided into six formation level stratigraphic units, they are Yuquan formation, Dabu formation, Dazhan formation, Heituhu formation, Linyi formation and Yihe formation. The study of chronology began. It is showed that the Quaternary strata is formed after the middle Pleistocene, and the formation age is later than 0.781Ma.