Analyses of TOC/S,TOC/DOP,S/Fe relationships and S-TOC-Femultiple linear regression were carried out to determine limiting factors for pyrite formation in black shales of the Honggang Member(Lower Eocene Bu-xin Formation) in the Sanshui Basin.

• 黄铁矿是富有机质沉积的特征矿物。 根据TOC/S、TOC/DOP、S/Fe关系以及S-TOC-Fe多重线性回归分析结果对三水盆地古近系土布心组红岗段黑色页岩中沉积黄铁矿的形成及其控制因素进行了分析。