Recent discoveries of hydrocarbons along the western margin of the Norwegian Barents Shelf have emphasised the need for a better understanding of the source rock potential of the Upper Palaeozoic succession. In this study, a comprehensive set of organic geochemical data have been collected from the Carboniferous – Permian interval outcropping on Svalbard in order to re‐assess the offshore potential. Four stratigraphic levels with organic‐rich facies have been identified: (i) Lower Carboniferous (Mississippian) fluvio‐lacustrine intervals with TOC between 1 and 75 wt.% and a cumulative organic‐rich section more than 100 m thick; (ii) Upper Carboniferous (Pennsylvanian) evaporite‐associated marine shales and organic‐rich carbonates with TOC up to 20 wt.%; (iii) a widespread lowermost Permian organic‐rich carbonate unit, 2–10 m thick, with 1–10 wt. % TOC; and (iv) Lower Permian organic‐rich marine shales with an average TOC content of 10 wt.%.

中文翻译：

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斯瓦尔巴河中上古生界富含有机物的特征：对诺里格套油田的石油系统的启示

挪威巴伦支大陆架西缘的碳氢化合物的最新发现强调需要更好地了解上古生界演替的烃源岩潜力。在这项研究中，已从斯瓦尔巴特群岛的石炭纪-二叠纪间断露头收集了一套完整的有机地球化学数据，以便重新评估海上潜力。已经确定了具有丰富有机相的四个地层：（i）低石炭纪（密西西比河）河湖相间隔，TOC在1至75 wt。％之间，累积的有机富集剖面大于100 m厚；（ii）上石炭统（宾夕法尼亚州）的蒸发岩相关海相页岩和富含有机物的碳酸盐，总有机碳含量最高为20 wt。％；（iii）一个分布最广泛的最低的二叠纪有机富碳酸盐单元，厚2-10 m，重量1-10。％TOC；（iv）二叠系有机质含量较低的海相页岩，平均TOC含量为10 wt。％。