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通过对川西地区什邡剖面二叠系进行系统的采样研究,发现不同沉积相对应不同的微量元素地球化学特征。P、Ba、Cr、Ni、Cu、Zn等生物发育的营养型元素富集,反映出具高的生物生产率;V/(V+Ni)值、V/Cr值、Sr/Ba值可以很好地指示有机质保存环境。二叠系烃源岩发育层段有机质丰度、沉积相与海侵―海退旋回的关系、有机质保存环境及生物繁茂程度等反映的地球化学特征相互吻合。微量元素地球化学特征对判别沉积相有重要的指示意义。
By systematically sampling the Permian in Shifang section of western Sichuan, we found that the trace elements in different sediments correspond to different geochemical characteristics. P, Ba, Cr, Ni, Cu, Zn and other bio-nutrients enrichment, reflecting high biological productivity; V / (V Ni) value, V / Cr value, Sr / Ba value can be very good Indicate organic matter preservation environment. The organic matter abundance, the relationship between sedimentary facies and transgression-regression in the Permian hydrocarbon source rock strata, the geochemical characteristics reflected by the preservation environment of organic matter and the lushness of the living organisms are consistent with each other. Trace element geochemical characteristics of sedimentary facies important indicator.