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在前人研究工作的基础上,本文采用相关碎屑岩特征统计分析及运用G azzi-D ick inson三角图解方法对北大港东营组和沙河街组进行了碎屑岩类统计及物源分析研究,统计分析结果表明,研究区有多物源特性,物源来源于陆块物源区与岩浆弧物源区交接部位。自北向南沉积物稳定性与成熟度也有所提高,因此研究区物源也受到北部燕山物源的影响。
Based on the previous research work, this paper uses the statistical analysis of the relevant clastic rocks and the Triangulation method of G azzi-D ick inson to study the clastic rock statistic and provenance analysis of Dongying Formation and Shahejie Formation in Beidagang The results of statistical analysis show that there are many provenance characteristics in the study area, and the source of the provenance comes from the junction of the source area of the block and the source area of the magma arc. Since the stability and maturity of the sediments from north to south have also increased, the provenance of the study area is also affected by the provenance of Yanshan in the north.