曲面型断层的露头特征及其地质意义

发布时间：2018-03-19 08:48

本文选题：曲面型断层　切入点：野外露头　出处：《断块油气田》2017年04期 　论文类型：期刊论文

【摘要】：曲面型断层与平面型断层相比,发育特征和形成机理更加复杂,与盆地形成演化的关系更加密切,且构造样式更易于矿产的富集,对其开展研究显得更为重要。以新泰-垛庄大断裂为例,通过详尽的露头定性定量地质数据分析,得出断层两盘的岩性、产状以及断层面的擦痕、产状、运动学性质等是揭示曲面型断层发育特征的几大要素。断层控制盆地的性质、形成演化以及现今格局,与此同时,受到盆地沉积—剥蚀旋回和构造应力场的影响,造成断层曲面的形成。研究结果表明,在相互影响和相互作用的过程中,断层曲面形成圈闭,易于油气等流体矿产成藏;同时盆地沉陷中心的迁移造成煤等固体矿产的富集。
[Abstract]:Compared with planar faults, curved faults have more complex developmental characteristics and formation mechanisms, and are more closely related to basin formation and evolution, and the structural patterns are easier to enrich minerals. It is more important to study it. Taking the Xintai-Duzhuang fault as an example, the lithology, occurrence and scratch of fault plane can be obtained by analyzing the detailed outcrop qualitative and quantitative geological data. The kinematic properties are the main elements to reveal the characteristics of the development of curved faults. Faults control the nature, formation and evolution of the basin as well as the present pattern. At the same time, it is affected by the sedimentary-denudation cycle and the tectonic stress field in the basin. The results show that, in the process of mutual influence and interaction, fault surfaces form traps, which are easy to form oil, gas and other fluid minerals, and the migration of subsidence center in the basin results in the enrichment of solid minerals such as coal.
【作者单位】：中国石油勘探开发研究院;中国石化江苏油田分公司勘探开发研究院;山西省古交市安全生产监督管理局;中国石化中原油田分公司;
【基金】：国家科技重大专项课题“井震结合油藏精细结构表征技术”(2011ZX05010-001)
【分类号】：P618.13

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