等深流沉积研究进展

发布时间：2018-07-14 22:02

【摘要】：等深流沉积研究已有约50年的历史,其研究成果极为丰富。近10余年,随着科学技术的发展和海洋意识的提高,等深流沉积研究工作开展迅速,涌现出了大量的新成果。简要回顾了等深流沉积研究的历程,结合最新研究成果,对其进展及认识进行了总结。等深流沉积以细粒沉积为主,沉积构造及生物扰动发育,多呈细—粗—细沉积序列。其类型可分为长条形丘状漂积体、水道型漂积体、补丁型漂积体等7类。沉积模式根据地形、水动力、路径等可分为简单路径模式、复杂路径模式以及等深流与重力流交互作用模式。等深流与重力流交互作用是深水沉积研究热点之一。等深流沉积研究面临的问题及发展方向主要有三方面,即,1)完善识别标志,推广研究成果;2)综合运用多种手段和理论,探讨沉积过程与构造演化、古海洋及气候变化的耦合关系;3)加大油气勘探潜力研究力度。
[Abstract]:The research on isothermal flow deposition has a history of about 50 years, and its research results are extremely rich. In the past 10 years, with the development of science and technology and the improvement of ocean consciousness, the research of iso-deep current deposition has been carried out rapidly, and a large number of new achievements have emerged. This paper briefly reviews the course of isothermal current deposition research, and summarizes its progress and understanding combined with the latest research results. The isothermal flow deposits are mainly fine-grained deposits with sedimentary structures and bioturbations, and most of them are fine-coarse-fine sedimentary sequences. Its types can be divided into seven types: long-shaped mound drift, waterway drift, patch-type drift and so on. The sedimentary model can be divided into simple path model, complex path model and interaction mode between isodepth flow and gravity flow according to topography, hydrodynamic force and path. The interaction between isotonic flow and gravity flow is one of the hotspots in deep water deposition research. There are three main problems and developing directions in the research of isothermal flow deposition: 1) perfecting the identification mark, 2) synthetically using various means and theories to discuss the sedimentary process and tectonic evolution. The coupling relationship between paleoocean and climate change is 3) to increase the research of oil and gas exploration potential.
【作者单位】：长江大学油气资源与勘探技术教育部重点实验室;长江大学沉积盆地研究中心;长江大学地球科学学院;
【基金】：国家科学自然基金项目(41472096,41502101) 湖北省创新群体基金(2015CFA024) 长江青年基金(2015cqn26)~~
【分类号】：P512.2

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