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东濮盆地四口井的25个沉积岩样品的穆斯堡尔谱学研究结果表明,沉积岩样品中的主要含铁矿物相为黄铁矿、粘土矿物以及一些碳酸盐矿物。沉积岩中黄铁矿铁的相对含量与Pr/Ph和CPI之间存在着负相关关系,表明穆斯堡尔谱学方法所确定的黄铁矿铁的相对含量可以作为沉积岩形成时古环境分析的一项可靠指标。此外,东濮盆地铁白云石主要分布在一定深度范围之内,本文讨论了铁白云石的分布与沉积岩有机质成熟度之间的对应关系。
The Mossbauer spectroscopy results of 25 sedimentary samples from four wells in the Dongpu Basin show that the major iron-bearing minerals in the sedimentary samples are pyrite, clay minerals and some carbonate minerals. There is a negative correlation between the relative contents of iron in pyrite and Pr / Ph and CPI in sedimentary rocks, indicating that the relative content of iron in pyrite determined by Mossbauer spectroscopy method can be used as the paleoenvironmental analysis of sedimentary rocks A reliable indicator. In addition, the Dongpu Basin iron dolomite is mainly distributed within a certain depth range. This paper discusses the relationship between the distribution of iron dolomite and organic matter maturity of sedimentary rocks.