Abstract

The paper presents the results of studying the Pesochansk brown coal deposit located in the central Dnieper–Donets coal-bearing area. The sedimentary cover of this area is characterized by the presence of salt structures, one of which is the Pesochansk stock. The subsidence trough of this pre-Paleogene structure was filled with the Paleogene–Neogene sediments containing three brown coal seams with different lithopetrographic compositions. This diversity was related to instability of the tectonic regime, changes in the paleogeographic condition and climate, as well as variability of the primary plant material and its transformation rate. It is shown that peat was accumulated during the formation of Lower and Middle coal seams in the coastal-marine lowland with a high degree of inundation, resulting in the formation of predominantly gelite-type coals. During the formation of the Upper coal seam, peat was accumulated mainly in the lacustrine-marsh environment with the predominant formation of gelitites.

中文翻译：

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第聂伯－顿涅茨含煤区古近系—新近系煤的形成条件（来自Pesochansk盐丘的证据）

摘要

本文介绍了研究位于第聂伯河-顿涅茨中心含煤区中的Pesochansk褐煤矿床的结果。该地区的沉积物覆盖物的特征是存在盐结构，其中之一是比索尚斯克水库。该古近纪前构造的沉降槽充满了古近纪—新近纪沉积物，其中包含三个岩相组成不同的褐煤煤层。这种多样性与构造制度的不稳定性，古地理条件和气候的变化以及主要植​​物材料的变异性及其转化率有关。结果表明，在沿海海陆低地的中下煤层形成过程中，泥炭富集程度很高，导致形成了主要的凝胶状煤。在上煤层的形成过程中，泥炭主要聚集在湖沼环境中，且主要形成胶凝岩。