Composition of bitumen in the organic matter of Black Sea sediments from DSDP Hole 42-379B

Bituminologic analysis of sediment cores from the Black Sea (water depth up to 2000 m, drilling depth up to 625 m) has revealed all components typical for fossilized rocks, viz. hydrocarbons, resins, asphaltenes, and insoluble matter. Proportions of these components, their composition and properties do not display any dependence on depth in hole and seem to be governed by composition of organic matter and conditions and degree of its transformation at early stages of lithogenesis.

对黑海（水深可达2000米，钻进深度可达625米）的沉积物岩芯开展的沥青学分析结果表明，已检出化石沉积岩的典型组分，即烃类、树脂、沥青质与不溶有机质。上述组分的占比、组成及性质均未呈现出随钻孔深度变化的相关性，其受控于有机质的初始组成、早期成岩作用阶段的转化条件与转化程度。