Abstract

The Bazhenov Formation rocks have been found to contain thin luminescent layers enriched in type I kerogen, which is untypical of the majority of organic matter from the Bazhenov Formation in the central part of the West Siberian petroleum basin. The detailed characteristics of the mineral and organic parts of these layers, which are called “alginite-rich layers” by the authors, are provided and variants of their origin are proposed. The wide distribution of the luminescent alginite-rich layers over the area in a single stratigraphic interval allows their use as marker horizons, as well as for assessing the thermal maturity of kerogen. These results contribute to understanding the diversity of the processes that form the organic-rich rocks in the Bazhenov Formation.

中文翻译：

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西西伯利亚石油盆地 Bazhenov 组岩石中的 I 型干酪根

摘要

已发现 Bazhenov 组岩石含有富含 I 型干酪根的薄发光层，这在西西伯利亚石油盆地中部 Bazhenov 组的大部分有机质中是不典型的。提供了这些层的矿物和有机部分的详细特征，作者将其称为“富海藻层”，并提出了它们的起源变体。发光的富含藻酸盐的层在单个地层层段内广泛分布于该地区，使其可以用作标记层位，以及评估干酪根的热成熟度。这些结果有助于理解在 Bazhenov 组中形成富含有机物岩石的过程的多样性。