下扬子陆域海相古-中生界烃源岩控制因素及其对南黄海盆地的启示

发布时间：2019-03-14 16:00

【摘要】：通过精细测量及观测南京、巢湖、浙江地区25个露头点露头资料和典型剖面测量以及资料收集整理,综合分析认为下扬子陆域主要发育下寒武统荷塘组、下奥陶统宁国组(大湾-牯牛组)、上奥陶统五峰组-下志留统高家边组、下二叠统栖霞组、上二叠统龙潭组、上二叠统大隆组6套区域性主力烃源岩。烃源岩的发育受多种因素控制,在下扬子地区主要受构造演化、最大海平面变化、古地貌单元、沉积环境等因素控制。在构造演化控制的特定古地理格局下,大规模海侵期控制了烃源岩发育层位,古地貌单元控制了烃源岩分布范围,沉积环境控制了烃源岩的类型。以下扬子陆域烃源岩研究为对比基础,探讨了寻找南黄海盆地烃源岩的方向。
[Abstract]:Through fine measurement and observation of outcrop data and typical profile survey of 25 outcrop points in Nanjing, Chaohu and Zhejiang, and the data collection and arrangement, the comprehensive analysis is that the lower part of the Lower Ordovician of the Lower Ordovician in the Lower Ordovician of the Lower Ordovician is the Lower Ordovician in the Lower Ordovician (Dawan-Taurus Formation). There are 6 regional main source rocks in the Upper Ordovician Wufeng Formation, the Lower Annulian Group, the Lower Permian Qixia Formation, the Upper Permian Longtan Formation and the Upper Permian Daliang Formation. The development of source rock is controlled by various factors, and in the lower Yangtze region, it is controlled mainly by the structural evolution, the maximum sea level change, the ancient geomorphic unit, the sedimentary environment and other factors. In the specific paleo-geographical pattern of the structural evolution control, the large-scale sea-invasion period controls the source rock development horizon, and the palaeo-geomorphic unit controls the source rock distribution range, and the sedimentary environment controls the type of source rock. Based on the study of the following source rock of the Yangtze region, the paper discusses the direction of the source rock in the South Yellow Sea.
【作者单位】：中国海洋大学海洋地球科学学院;国土资源部海洋油气资源和环境地质重点实验室中国地质调查局青岛海洋地质研究所;青岛海洋科学与技术国家实验室海洋矿产资源评价与探测技术功能实验室;
【基金】：青岛市市南区科技发展资金项目(2015-6-028-ZH) 国土资源部海洋油气资源和环境重点实验室基金(MRE201219) 中国地质调查局项目南黄海油气资源调查(DD20160152)
【分类号】：P618.13

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