南海北部陆坡琼东南盆地晚中新世以来沉积物来源及输送样式

doi:10.3969/j.issn.1001-909X.2016.02.005

海洋学研究 ›› 2016, Vol. 34 ›› Issue (2): 35-42.DOI: 10.3969/j.issn.1001-909X.2016.02.005

南海北部陆坡琼东南盆地晚中新世以来沉积物来源及输送样式

雷振宇^1,2, 苏明^*3,4, 张莉^1,2, 帅庆伟^1,2, 孙鸣^1,2, 刘杰^3,4, 杨睿^3,4

1.中国地质调查局广州海洋地质调查局,广东广州 510760;
2.国土资源部海底矿产资源重点实验室,广东广州 510760;
3.中国科学院广州能源研究所天然气水合物成藏机制研究实验室,广东广州 510640;
4.中国科学院广州天然气水合物研究中心,广东广州 510640

收稿日期:2015-07-01 修回日期:2016-01-22 出版日期:2016-06-15 发布日期:2022-11-24
通讯作者: * 苏明(1983-),男,副研究员,主要从事深水沉积体系与油气勘探、海域天然气水合物成藏地质条件分析方面的研究。E-mail: suming@ms.giec.ac.cn
作者简介:雷振宇(1983-),男,湖北武汉市人,工程师,主要从事油气成藏动力学、油气资源评价、盆地分析等方面的研究。E-mail: 44231234@qq.com
基金资助:
国土资源部海洋油气资源与环境地质重点实验室开放基金项目资助(MRE201305);中国科学院海洋地质与环境重点实验室开放基金项目资助(MGE2013KG02);国土资源部海底矿产资源重点实验室开放基金项目资助(KLMMR-2014-A-09)

Sediment sources and transport patterns of Qiongdongnan Basin in Northern Slope of South China Sea since Late Miocene

LEI Zhen-yu^1,2, SU Ming^*3,4, ZHANG Li^1,2, SHUAI Qing-wei^1,2, SUN Ming^1,2, LIU Jie^3,4, YANG Rui^3,4

1. Guangzhou Marine Geology Survey, China Geological Survey, Guangzhou 510760, China;
2. Key Laboratory of Marine Mineral Resources, Ministry of Land and Resources, Guangzhou 510760, China;
3. Laboratory of Gas Hydrate Formation Mechanism, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences,Guangzhou 510640, China;
4. Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, China

Received:2015-07-01 Revised:2016-01-22 Online:2016-06-15 Published:2022-11-24

摘要/Abstract

摘要： 为了更好地揭示南海北部陆坡琼东南盆地晚中新世以来的沉积物输送样式,本次研究将盆地裂后期加速沉降阶段以来的沉积物充填样式作为研究对象,基于前人对这一区域潜在物源区的分析,通过对已有勘探成果的总结和归纳,对深水沉积体的类型进行识别,建立具有成因关系或相同来源的深水沉积体组合,尝试对沉积物输送样式进行划分和归类。研究结果认为,晚中新世以来,琼东南盆地主要存在海南岛物源、莺西物源、南部隆起带物源和神狐隆起物源等4个潜在物源区,沉积物输送样式可划分为垂向沉积物输送、轴向沉积物输送和转向沉积物输送3种类型。

关键词: 沉积物输送, 晚中新世, 琼东南盆地, 南海北部陆坡

Abstract: The sediment transport patterns were revealed in the Qiongdongnan Basin on the Northern Slope of South China Sea since Late Miocene by the research of the sediment filling patterns since the period of post-rift accelerated subsidence. On the basis of the previous analysis on the potential provenance, combined with the summary and induction of the exploration achievement in the research area, the types of the deep-water sedimentation were identified and the combinations of the deep-water depositional packages which have genetic relationship or the same source were built. In addition, the sediment transport patterns were classified tentatively. The results show that since Late Miocene, there are 4 potential sedimentary sources in the Qiongdongnan Basin: they are Hainan Island' sources, West Yinggehai' sources, Southern uplift' sources and Shenhu uplift' sources, respectively. The sedimentary transport patterns can be divided into three types: they are vertical direction, axial direction and turning direction sedimentary transportation.

Key words: sediment transportation, Late Miocene, Qiongdongnan Basin, Northern Slope of South China Sea

中图分类号:

P736.2

雷振宇, 苏明, 张莉, 帅庆伟, 孙鸣, 刘杰, 杨睿. 南海北部陆坡琼东南盆地晚中新世以来沉积物来源及输送样式[J]. 海洋学研究, 2016, 34(2): 35-42.

LEI Zhen-yu, SU Ming, ZHANG Li, SHUAI Qing-wei, SUN Ming, LIU Jie, YANG Rui. Sediment sources and transport patterns of Qiongdongnan Basin in Northern Slope of South China Sea since Late Miocene[J]. Journal of Marine Sciences, 2016, 34(2): 35-42.

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南海北部陆坡琼东南盆地晚中新世以来沉积物来源及输送样式

Sediment sources and transport patterns of Qiongdongnan Basin in Northern Slope of South China Sea since Late Miocene

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