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本文在叙述玄武岩屑砂岩成岩序列的基础上,依据多种实验分析手段所获得的资料,对其成岩阶段和环境作了划分,并讨论了含Ti—Fe蒙脱石、绿泥石、菱铁矿、铁白云石、铁方解石等自生矿物的成因。它们的形成受控于下列因素的综合作用:1)砂岩的成分和结构;2)沉积层间的组合特征;3)有机质的还原作用和热成熟作用;4)粘土岩中粘土矿物的脱水和转化作用;5)温度和孔隙的水的酸、碱度;6)压实作用。
Based on the diagenetic sequence of basaltic sandstone diagenesis, based on the data obtained from various experimental and analytical methods, the diagenetic stage and environment were divided. The effects of Ti-Fe montmorillonite, chlorite, siderite Minerals, iron dolomite, iron calcite and other genesis of the mineral. Their formation is governed by the combined effects of: 1) the composition and structure of the sandstone; 2) the combined characteristics of the sedimentary layers; 3) the reduction and thermo-maturation of the organic matter; 4) the dehydration of clay minerals in the clay rock and Conversion; 5) temperature and pore water acidity, alkalinity; 6) compaction.