南沙中部海域沉积地层特征及其构造成因

吴朝华; 赵美松; 刘海龄

doi:10.3799/dqkx.2011.089

南沙中部海域沉积地层特征及其构造成因

doi: 10.3799/dqkx.2011.089

吴朝华^{1, 2,},
赵美松^{1, 2},
刘海龄^2, ,

1.
中国科学院研究生院, 北京 100049
2.
中国科学院南海海洋研究所边缘海地质重点实验室, 广东广州 510301

基金项目:

国家自然科学基金项目 40976029

国家重点基础研究“973”发展计划 2009CB2194

国家重点基础研究“973”发展计划 2007CB411700

详细信息

作者简介:
吴朝华(1985—), 男, 硕士研究生, 主攻南海区域大地构造及油气地质研究. Email: wu_chao_hua@126.com

通讯作者:
刘海龄, E-mail: liuh82@126.com

中图分类号: P736.1
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- 被引次数: 0
出版历程
- 收稿日期: 2011-04-18
- 刊出日期: 2011-09-15

Characteristics of Sedimentary Strata in Central Nansha Sea Area and Its Tectonic Origin

WU Chao-hua^{1, 2
,},
ZHAO Mei-song^{1, 2},
LIU Hai-ling^{2
, ,}

1.
Graduate University of Chinese Academy of Sciences, Beijing 100049, China
2.
CAS Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Guangzhou 510301, China

摘要

摘要: 为了深入了解南沙中部海域的沉积特征及构造演化过程, 选取了该区具代表性的02N02测线对其进行详细的构造和地层解释.发现研究区南部存在一整套厚度较大的中生代甚至更老的地层, 该地层普遍发生了强烈的褶皱作用, 褶皱翼部存在一系列NE-NEE向断裂, 控制沉积明显, 背斜顶部多被剥蚀, 翼部为充填沉积.新生代地层T_g (中始新世) 到T₄₀ (中中新世) 界面之间, 为裂谷充填和披覆沉积, 层内控制沉积的断裂普遍发育, 而T₄₀界面之上为平整的盖层沉积, 断裂作用极少, 地层厚度变化不大.结合以上特征对比区内与02N02测线相交的87N4测线、临近的90N9等测线, 以及横穿该区的94N2测线, 分析了南沙中部海域中、新生代地层的构造成因, 并进一步探讨了其中、新生代地层的演化过程.
- 南沙中部海域 /
- 构造特征 /
- 构造演化 /
- 沉积学 /
- 披覆沉积 /
- 中-新生代 /
- 海洋地质
Abstract: To further understand the characteristics and tectonic evolution of sedimentary in the central waters of the Nansha, we select typical survey line 02N02 in this area and present detailed interpretation of its structure and stratigraphy.It finds that there is a set of thick Mesozoic or even older strata in the area, especially in the southern area, which generally has strong folding, and there is a series of NE-NEE-trending faults controlling the deposition obviously in the wings of folds.Anticline has been eroded at the top, deposited in the wings.The filling and coating deposition between Cenozoic T_g (the top of Middle Eocene) and T₄₀ (the bottom of Middle Miocene) interface in rift valleys were controlled by faults, and the formation of cap rock above T₄₀ with little change in stratigraphic thickness were less controlled by faults.Combining these features above and comparing the line 87N4 intersecting with line 02N02 and the line 90N9 nearby the line 02N02 to the east, and the line 94N2 crossing this area, we analyze the Mesozoic and Cenozoic tectonic origin of the central Nansha Sea area, and further discuss its evolution.
- central Nansha Sea area /
- structural features /
- tectonic evolution /
- sedimentology /
- filling deposits /
- Meso-Cenozoic /
- marine geology

HTML全文

图 1 研究区区域概况

Fig. 1. Regional map of the research area

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图 2 南沙地块地层沉积序列

Fig. 2. Sedimentary sequences of Nansha block

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图 3 02N02地震测线地质解释

Fig. 3. Sketch geological interpretation for the seismic line 02N02

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图 4 南沙中部海域02N02地震剖面(位置见图 3)

a.炮点5820~6600段; b.8823~9427段

Fig. 4. The central segment of seismic profile line 02N02 in Nansha

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图 5 南沙中部海域02N02测线地震剖面(位置见图 3)

a.炮点10260~11050段; b.炮点11680~12410段; c.炮点13080~13945段

Fig. 5. Seismic profile line 02N02 in the central waters of Nansha

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图 6 构造演化史剖面示意

Fig. 6. Schematic tectonic evolution profile

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参考文献(42)

[1]	Huchon, P., Nguyen, T. N. H., Chamot-Rooke, N., 2001. Propagation of continental break-up in the southwestern South China Sea. Geological Society, London, Special Publications, 187(1): 31-50. doi: 10.1144/GSL.SP.2001.187.01.03.
[2]	Hutchison, C. S., Vijayan, V. R., 2010. What are the Spratly islands? Journal of Asian Earth Sciences, 39(5): 371-385. doi: 10.1016/j.jseaes.2010.04.013.
[3]	Jin, Q. H., Li. T. G., 2000. Regional geologic tectonics of the Nansha Sea area. Marine Geology & Quaternary Geology, 20(01): 1-8 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-HYDZ200001000.htm
[4]	Jin, Q. H., Wu, J. M., Lao, Q. Y., 2001. Analysis of sedimentary basins in western waters of the Nansha and petroleum resources. China University of Geosciences Press, Wuhan (in Chinese).
[5]	Kudrass, H. R., Wiedicke, M., Cepeck, P., et al., 1986. Mesozoic and Cainozoic rocks dredged f rom the South China Sea (Reed bank area) and Sulu Sea and their significance for plate-tectonic reconstructions. Marine and Petroleum Geology, 3(1): 19-30. doi: 10.1016/0264-8172(86)90053-X.
[6]	Li, J. B., 2005. Formation and evolution of Chinese marginal resource effects of the sea. Ocean Press, Beijing (in Chinese).
[7]	Liu, H. L., 1999. On dynamic process and kinematic characteristics of boundary faults of Nansha transcrustal. Tropic Oceanology, 18(4): 8-16 (in Chinese with English abstract). http://www.cnki.com.cn/Article/CJFDTotal-RDHY199904001.htm
[8]	Liu, H. L., Xie, G. F., Yan, P., et al., 2007. Tectonic implication of Mesozoic marine deposits in the Nansha islands of the South China Sea. Oceanologia et Limnologia Sinica, 38(3): 272-278 (in Chinese with English abstract). http://d.wanfangdata.com.cn/Periodical/hyyhz200703014
[9]	Liu, H. L., Yan, P., Liu, Y. C., et al., 2004a. Characteristics of Cenozoic sedimentary basement structures and their control-basin mechanism within Nansha micro-plate. Marine Science Bulletin, 23(6): 38-48 (in Chinese with English abstract). http://www.zhangqiaokeyan.com/academic-journal-cn_marine-science-bulletin_thesis/0201253874164.html
[10]	Liu, H. L., Yan, P., Zhang, B. Y., et al., 2004b. Pre-Cenozoic basements of the South China Sea and eastern Tethyan realm. Marine Geology & Quaternary Geology, 24(1): 15-28 (in Chinese with English abstract). http://search.cnki.net/down/default.aspx?filename=HYDZ200401003&dbcode=CJFD&year=2004&dflag=pdfdown
[11]	Liu, H. L., Yan, P., Sun, Y., et al., 2002. Layer-block tectonics of the Nansha microplate. Geology in China, 29(4): 374-381 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DIZI200204007.htm
[12]	Liu, H. L., Zheng, H. B., Wang, Y. L., et al., 2011. Basement of the South China Sea area: tracing the Tethyan realm. Acta Geologica Sinica, 85(3): 801-819 (in press). doi: 10.1111/j.1755-6724.2011.00457.x
[13]	Nansha Comprehensive Science Expedition of the Chinese Academy of Science, 1989. Comprehensive survey reports on the Nansha Islands and adjacent seas (1) volume1. Science Press, Beijing (in Chinese).
[14]	Taylor, B., Hayes, D. E., 1980. The tectonic evolution of the South China Sea basin. In: Hayes, D. E., ed., The tectonic and geologic evolution of Southeast Asian Seas and islands. Geophys. Monogr., vol. 23., AGU, Washington, D. C., .
[15]	Taylor, B., Hayes, D. E., 1983. Origin and history of the South China Sea basin. In: Hayes, D. E., ed., The tectonic and geologic evolution of Southeast Asian Seas and islands, Part 2. Geophys. Monogr., vol. 27., AGU, Washington, D. C., .
[16]	Wang, H. B., Yao, B. C., Liang, J. Q., et al., 2001. Tectonic characteristics and divison of the Beikang basin. Marine Geology & Quaternary Geology, 21(2): 49-54 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-HYDZ200102011.htm
[17]	Wang, L. L., Wu, N. Y., Zhou, Z. Y., et al., 2002. History of Cenozoic sedimentary evolution of the Beikang basin, southwestern South China Sea. Geology in China, 29(1): 96-102 (in Chinese with English abstract). http://www.researchgate.net/publication/285807692_History_of_the_Cenozoic_sedimentary_evolution_of_the_Beikang_Basin_southwestern_South_China_Sea
[18]	Wu, S. M., Zhou, D., Liu, H. L., 2004. Tectonic framework and evolutionary characteristics of Nansha block, South China Sea. Geotectonica et Metallogenia, 28(1): 23-28 (in Chinese with English abstract). http://epub.cnki.net/grid2008/docdown/docdownload.aspx?filename=DGYK200401003&dbcode=CJFD&year=2004&dflag=pdfdown
[19]	Xia, K. Y., Huang, C. L., Huang, Z. M., 2004. Upper Triassic-Cretaceous sediment distribution and hydrocarbon potential in South China Sea and its adjacent areas. China Offshore Oil and Gas, 16(2): 73-83 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-ZHSD200402000.htm
[20]	Xu, X., Yao, Y. J., Wang, L., F., et al., 2003. Cenozoic sedimentation of Nanweixi basin, the southern South China Sea. China Offshore Oil and Gas, 17(3): 170-175 (in Chinese with English abstract). http://www.zhangqiaokeyan.com/academic-journal-cn_china-offshore-oil-gas-geological_thesis/0201219525022.html
[21]	Yan, P., Deng, H., Liu, H., et al., 2006. The temporal and spatial distribution of volcanism in the South China Sea region. Journal of Asian Earth Sciences, 27(5): 647-659. doi: 10.1016/j.jseaes.2005.06.005.
[22]	Yan, P., Liu, H. L., 2004. Tectonic-stratigraphic division and blind fold structures in Nansha waters, South China Sea. Journal of Asian Earth Sciences, 24(3): 337-348. doi: 10.1016/j.jseaes.2003.12.005.
[23]	Yao, Y. J., Jiang, Y. K., Zeng, X. H., 2002. Cenozoic tectonic movement in Nansha area, South China Sea. China Offshore Oil and Gas, 16(2): 113-117, 124 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-ZHSD200202009.htm
[24]	Zhang, C., Wu, S. M., Qiu, X. L., 2007. Formation of foreland basins in the south of the South China Sea. Marine and Petroleum Geology, 27(1): 61-70 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-HYDZ200701012.htm
[25]	Zhou, D., Chen, H. Z., Sun, Z., et al., 2005. Three Mesozoic sea basins in eastern and southern South China Sea and their relation to Tethys and Paleo-Pacific domains. Journal of Tropical Oceanography, 24(2): 227-235 (in Chinese with English abstract). http://en.cnki.com.cn/article_en/cjfdtotal-rdhy200502002.htm
[26]	金庆焕, 李唐根, 2000. 南沙海域区域地质构造. 海洋地质与第四纪地质, 20(1): 1-8. https://www.cnki.com.cn/Article/CJFDTOTAL-HYDZ200001000.htm
[27]	金庆焕, 吴进明, 劳秋元, 2001. 南沙西部海域沉积盆地分析与油气资源. 武汉: 中国地质大学出版社.
[28]	李家彪, 2005. 中国边缘海形成演化与资源效应. 北京: 海洋出版社.
[29]	刘海龄, 1999. 南沙超壳层块边界断裂的运动学与动力学特征. 热带海洋, 18(4): 8-16. https://www.cnki.com.cn/Article/CJFDTOTAL-RDHY199904001.htm
[30]	刘海龄, 谢国发, 阎贫, 等, 2007. 南沙海区中生界岩相分布及构造特征. 海洋与湖沼, 38(3): 272-278. doi: 10.3321/j.issn:0029-814X.2007.03.014
[31]	刘海龄, 阎贫, 刘迎春, 等, 2004a. 南沙板内新生代沉积基底构造特征及其控盆机制. 海洋通报, 23(6): 38-48. https://www.cnki.com.cn/Article/CJFDTOTAL-HUTB200406006.htm
[32]	刘海龄, 阎贫, 张伯友, 等, 2004b. 南海前新生代基底与东特提斯构造域. 海洋地质与第四纪地质, 24(1): 15-28. https://www.cnki.com.cn/Article/CJFDTOTAL-HYDZ200401003.htm
[33]	刘海龄, 阎贫, 孙岩, 等, 2002. 南沙微板块的层块构造. 中国地质, 29(4): 374-381. doi: 10.3969/j.issn.1000-3657.2002.04.008
[34]	王宏斌, 姚伯初, 梁金强, 等, 2001. 北康盆地构造特征及其构造区划. 海洋地质与第四纪地质, 21(2): 49-54. https://www.cnki.com.cn/Article/CJFDTOTAL-HYDZ200102011.htm
[35]	王嘹亮, 吴能友, 周祖翼, 等, 2002. 南海西南部北康盆地新生代沉积演化史. 中国地质29(1): 96-102. doi: 10.3969/j.issn.1000-3657.2002.01.016
[36]	吴世敏, 周蒂, 刘海龄, 2004. 南沙地块构造格局及其演化特征. 大地构造与成矿学, 28(1): 23-28. doi: 10.3969/j.issn.1001-1552.2004.01.004
[37]	夏戡原, 黄慈流, 黄志明, 2004. 南海及邻区中生代(晚三叠世—白垩纪)地层分布特征及含油气性对比. 中国海上油气, 16(2): 73-83. doi: 10.3969/j.issn.1673-1506.2004.02.001
[38]	徐行, 姚永坚, 王立非, 2003. 南海南部海域南薇西盆地新生代沉积特征. 中国海上油气地质, 17(3): 170-175. https://www.cnki.com.cn/Article/CJFDTOTAL-ZHSD200303004.htm
[39]	姚永坚, 姜玉坤, 曾祥辉, 2002. 南沙海域新生代构造运动特征. 中国海上油气地质, 16(2): 113-117, 124. https://www.cnki.com.cn/Article/CJFDTOTAL-ZHSD200202009.htm
[40]	张翀, 吴世敏, 丘学林, 2007. 南海南部海区前陆盆地形成与演化. 海洋地质与第四纪地质, 27(1): 61-70. https://www.cnki.com.cn/Article/CJFDTOTAL-HYDZ200701012.htm
[41]	中国科学院南沙综合科学考察队, 1989. 南沙群岛及其邻近海区综合调查研究报告(一)上卷. 北京: 科学出版社.
[42]	周蒂, 陈汉宗, 孙珍, 等, 2005. 南海中生代三期海盆及其与特提斯和古太平洋的关系. 热带海洋学报, 24(2): 227-235. https://www.cnki.com.cn/Article/CJFDTOTAL-RDHY200502002.htm