多种能源矿产共存富集的地球化学特征

Geochemical Characteristics of Diversiform Energy Minerals Coexisting and Concentration

对煤、石油、天然气三种可燃有机矿产进行了研究,从理论到勘探试验都证明,同属沉积圈中的煤、石油和天然气这三种有机矿产,无论在成因还是在演化上,既有共性,也存在明显差异。研究结果表明:这三种可燃有机矿产可以共生于同一盆地或层系之内,也可以分别富集于不同盆地或层系之中;三种有机矿产之间存在一定的成因联系,并且共同来源于沉积有机质;有机质源的不同和地球化学转化过程的差异,形成煤、石油、天然气三种可燃有机矿产;三种有机矿产都是生物先质经有机质的成岩和变质作用转变而成的,而控制生物先质的转化方向则取决于沉积有机相。

Studied three combustible organic minerals of coal, petroleum and natural gas, from theory to exploration testing have demonstrated that the three sedimentary ores have both generality and obvious differentia whether on genesis or evolution. Research result indicated that they can coexist in a same basin or measures, also concentrate in different basins or different measures; they have certain genetic relation and all come from sedimentary organic matter; different sources of organic matter and geochemical conversion processes thus formed coal, petroleum and natural gas respectively; they are all from biologic precursor through organic matter diagenetic change and metamorphism, while the biogenic precursor conversion orientation is depend on sedimentary organic facies.