Analyses on the tectonic thermal evolution and influence factors in the deep-water Qiongdongnan Basin

WANG Zhenfeng; SHI Xiaobin; YANG Jun; HUANG Baojia; SUN Zhen; WANG Yahui; JIANG Haiyan; YU Chuanhai; YANG Xiaoqiu

doi:10.1007/s13131-014-0580-9

琼东南盆地深水区构造热演化特征及其影响因素分析

doi: 10.1007/s13131-014-0580-9

1.
中海石油(中国)有限公司湛江分公司, 湛江 524057
2.
中国科学院边缘海重点实验室, 中国科学院南海海洋研究所, 广州 510301
3.
中国科学院边缘海重点实验室, 中国科学院南海海洋研究所, 广州 510301;中国科学院大学, 北京 100039

基金项目: the National Science and Technology Major Programs of China under contract No. 2011ZX05025-002-01; the National Natural Science Foundation of China under contract Nos 41176050 and 41376059.

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- 收稿日期: 2014-06-20
- 修回日期: 2014-09-29

Analyses on the tectonic thermal evolution and influence factors in the deep-water Qiongdongnan Basin

1.
Zhanjiang Branch of China National Offshore Oil Corporation (CNOOC) Limited, Zhanjiang 524057, China
2.
Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
3.
Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;University of Chinese Academy of Sciences, Beijing 100039, China

摘要

摘要: 为揭示琼东南盆地深水区构造热演化及现今热流分布特征的影响因素,本文依据154个热流数据,首先详细分析了主要构造单元热流分布特征,并通过20条骨干剖面的构造热演化数值分析,重建了主要深水凹陷的热演化过程.结果表明:琼东南盆地热流分布可以分为3个区域:北部陆架与上陆坡区具有较低的热流,热流值介于50-70 mW/m²,中央坳陷带大部分深水区,热流值一般介于70-85 mW/m²,盆地东部宝岛、长昌凹陷与西沙海槽北部斜坡带有一条热流值大于85 mW/m²的高热流带;张裂阶段区域热流总体上随时间增加,凸起区热流一般高于凹陷区内热流,张裂结束时,深水凹陷区热流介于65-85mW/m²,凸起区热流更高介于75-100 mW/m²;裂后阶段,盆地热流逐渐降低,凸起区和凹陷区热流差异变小,等效于5Ma左右发生的晚期岩体侵位热事件使中央坳陷带和南部隆起带的热流大幅升高,现今该热事件仍贡献约10-25mW/m².进一步分析表明,琼东南盆地深水区高热流特征主要是在上地幔高热背景、岩石圈强烈减薄的基础上叠加了晚期岩浆侵入热事件的结果.局部热流分布还受到盆地基底形态、海底地形、沉积物热贡献、沉积物热披覆效应、局部岩体侵入以及超压、断裂引起的流体活动等因素影响.
- 北部大陆边缘 /
- 南海 /
- 海底热流 /
- 岩浆作用
Abstract: To reveal the tectonic thermal evolution and influence factors on the present heat flow distribution, based on 154 heat flow data, the present heat flow distribution features of the main tectonic units are first analyzed in detail, then the tectonic thermal evolution histories of 20 profiles are reestablished crossing the main deep-water sags with a structural, thermal and sedimentary coupled numerical model. On the basis of the present geothermal features, the Qiongdongnan Basin could be divided into three regions: the northern shelf and upper slope region with a heat flow of 50-70 mW/m², most of the central depression zone of 70-85 mW/m², and a NE trending high heat flow zone of 85-105 mW/m² lying in the eastern basin. Numerical modeling shows that during the syn-rift phase, the heat flow increases generally with time, and is higher in basement high area than in its adjacent sags. At the end of the syn-rift phase, the heat flow in the deepwater sags was in a range of 60-85 mW/m², while in the basement high area, it was in a range of 75-100 mW/m². During the post-rift phase, the heat flow decreased gradually, and tended to be more uniform in the basement highs and sags. However, an extensive magmatism, which equivalently happened at around 5 Ma, has greatly increased the heat flow values, and the relict heat still contributes about 10-25 mW/m² to the present surface heat flow in the central depression zone and the southern uplift zone. Further analyses suggested that the present high heat flow in the deep-water Qiongdongnan Basin is a combined result of the thermal anomaly in the upper mantle, highly thinning of the lithosphere, and the recent extensive magmatism. Other secondary factors might have affected the heat flow distribution features in some local regions. These factors include basement and seafloor topography, sediment heat generation, thermal blanketing, local magmatic injecting and hydrothermal activities related to faulting and overpressure.
- northern continental margin /
- South China Sea /
- surface heat flow /
- magmatism

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参考文献(40)

Gong Zaisheng, Li Sitian, Xie Taijun, et al. 1997. Continental Margin Basin Analysis and Hydrocarbon Accumulation of the Northern South China Sea. Beijing: Science Press, 1-178

He Liansheng, Wang Guangyu, Shi Xiaochao. 1980. Xisha Trough—a Cenozoic rift. Geological Revolution (in Chinese), 26(6): 486-489 He Lijuan, Wang Kelin, Xiong Liangping, et al. 2001. Heat flow and thermal history of the South China Sea. Physics of the Earth and Planetary Interiors, 126: 211-220

Huang Haibo, Qiu Xuelin, Xu Huilong, et al. 2011. Preliminary results of the earthquake observation and the onshore-offshore seismic experiments on Xisha block. Chinese Journal of Geophysics, 54: 3161-3170

Lebedev S, Nolet G. 2003. Upper mantle beneath Southeast Asia from S velocity tomography. J Geophys Res, 108: 20-48

Lei Jianshe, Zhao Dapeng, Steinberger B, et al. 2009. New seismic constraintson the upper mantle structure of the Hainan plume. Phys Earth Planet Inter, 173(1): 33-50

Li Sitian, Lin Changsong, Zhang Qiming, et al. 1998. Episodic rifting dynamic of marginal basins north of South China Sea and tectonic accidents since 10 Ma. Chinese Science Bulletin (in Chinese), 43(8): 797-810

Li Yamin, Shi Xiaobin, Xu Huilong, et al. 2011. Analysis on activity characteristics of the Paleogene basement faults in Qiongdongnan Basin. Journal of Tropical Oceanogaphy (in Chinese), 30(6): 74-83

Li Xuxuan, Zhu Guangxu. 2005. The fault system and its hydrocarbon carrier significance in Qiongdongnan basin. China Offshore Oil and Gas (in Chinese), 17(1): 1-7

McKenzie D. 1978. Some remarks on the development of sedimentary basins. Earth and Planetary Science Letters, 40: 24-32

Mi Lijun, Yuan Yusong, Zhang G C, et al. 2009. Charateristics and genesis of geothermal field in deep-water area of the northern South China Sea. Acta Petrolei Sinica (in Chinese), 30(1): 27-32

Montelli R, Nolet G, Dahlen F A, et al. 2006. A catalogue of deep mantle plumes: new results from finite frequency tomography. Geochem Geophys Geosys, 7(11): doi: 10.1029/2006GC001248

Nissen S S, Hayes D E, Yao B. 1995. Gravity heat flow, and seismic constrints on the processes of crustal extension: Northern margin of the South China Sea. Journal of Geophysical Research, 100(B11): 22447-22483

Pang Xiong, Shen Jun, Yuan Lizhong, et al. 2006. Petroleum prospect in deep-water fan system of the Pearl River in the South China Sea. Acta Petrolei Sinica (in Chinese), 27(3): 11-16, 21

Qin Jingxin, Hao Tianyao, Xu Ya, et al. 2011. The distribution characteristics and the relationship between the tectonic units of the Moho depth in South China Sea and adjacent areas. Chinese J Geophys (in Chinese), 54(12): 3171-3183

Qiu Xuelin, Ye Sanyu, Wu Shimin, et al. 2001. Crustal structure across the Xisha Trough, northwestern South China Sea. Tectonophysics, 341(1-4): 179-193

Rupke L H, Schmalholz S M, Schmid D W, et al. 2008. Automated thermotectonostratigraphic basin reconstruction: Viking Graben case study. Aapg Bulletin, 92: 309-326

Shan Jingnan, Zhang Gongcheng, Wu Jingfu, et al. 2011.Thermal structure and deep temperature of Qiongdongnan Basin, Northern Margin of the South China Sea. Chinese J Geophys (in Chinese), 54(8): 2102-2109

Shi Xiaobin, Burov E, Leroy S, et al. 2005. Intrusion and its implication for subsidence: a case from the Baiyun Sag, on the northern margin of the South China Sea. Tectonophysics, 407: 117-134

Shi Xiaobin, Qiu Xuelin, Xia Kanyuan, et al. 2003. Characteristics of the surface heat flow in the South China Sea. Journal of Asian Earth Sciences, 22(3): 265-277

Shi Xiaobin, Xu Hehua, Qiu Xuelin, et al. 2008. Numerical modeling on the relationship between thermal uplift and subsequent rapid subsidence: Discussions on the evolution of the Tainan Basin. Tectonics, 27(6): TC6003, doi: 10.1029/2007TC002163

Song Yang, Zhang Changyu, Zhang Gongcheng, et al. 2011. Research on tectono-thermal modeling for Qiongdongnan Basin and Pearl River Mouth Basin in the northern South China Sea. Chinese J Geophys (in Chinese), 54(12): 3057-3069

Su Daquan, Liu Yuanlong, Chen Xue, et al. 2004. 3D Moho depth of the South China Sea. In: Zhang Zhongjie, Gao Rui, Lv Qingtian, et al., eds. Earth's Deep Structure and Dynamic Researches of the Mainland China (in Chinese). Beijing: Science Press, 357-365

Tang Qunshu, Zheng Chan. 2013. Crust and upper mantle structure and its tectonic implications in the South China Sea and adjacent regions. Journal of Asian Earth Sciences, 62(2013): 510-525

Wang Xuance, Li Zhengxiang, Li Xianhua, et al. 2013. Identification of an ancient mantle reservoir and young recycled materials in the source region of a young mantle plume: Implications for potential linkages between plume and plate tectonics. Earth and Planetary Science Letters, 377: 248-259

Wang Zhengfeng, Li Xushen, Sun Zhipeng, et al. 2011. Hydrocarbon accumulation conditions and exploration potential in the deepwater region, Qiongdongnan basin. China Offshore Oil and Gas (in Chinese), 23(1): 7-13

Wessel P, Smith W H F. 1995. New version of the generic mapping tools. Eos, Transactions American Geophysical Union, 76(33): 329-329

White N, Thompson M, Barwise T. 2003. Understanding the thermal evolution of deep-water continental margins. Nature, 426: 334- 343

Xie Wenyan, Zhang Yiwei, Sun Zhen, et al. 2007. Characteristics and formation mechanism of faults in Qiongdongnan basin. Marine Geology & Quaternary Geology (in Chinese), 27(1): 71-78

Xu Xing, Shi Xiaobin, Luo Xianhu, et al. 2006. Heat flow measurements in the Xisha trough of the South Chinas Sea. Marine Geology & Quaternary Geology (in Chinese), 26(4): 51-58

Xu Yigang, Wei Jingxian, Qiu Huaning, et al. 2012. Opening and evolution of the South China Sea constrained by studies on volcanic rocks: Preliminary results and a research design. Chinese Science Bulletin, 57(20): 3150-3164

Yan Quanshu, Shi Xuefa. 2007. Hainan mantle plume and the formation and evolution of the South China Sea. Geological Journal of China Universities (in Chinese), 13: 311-322

Yao Bochu, Zeng Weijun, Hayes D E, et al. 1994. The Geological Memoir of South China Sea Surveyed Jointly by China & USA (in Chinese). Wuhan: China University of Geosciences Press, 34-140

Yuan Yusong, Zhu Weilin, Mi Lijun, et al. 2009. “Uniform geothermal gradient” and heat flow in the Qiongdongnan and Pearl River Mouth Basins of the South China Sea. Marine and Petroleum Geology, 26: 1152-1162

Zhang Zhongjie, Liu Yifei, Zhang Sufang, et al. 2009. Crustal P‐wave velocity structure and layering beneath Zhujiangkou-Qiongdongnan Basins in the northern continental margin of South China Sea. Chinese Journal of Geophysics (in Chinese), 52(10): 2461-2471

Zhang Yunfan, Sun Zhen, Zhou Di, et al. 2007. The crust thinning characteristics and its dynamics meaning of northern margin of South China Sea. Science in China (Series D), 37(12): 1609-1616

Zhang Jian, Wang Jiyang. 2000. The deep thermal characteristic of continental margin of the northern South China Sea. Chinese Science Bulletin (in Chinese), 45(10): 1095-1100

Zhang Gongcheng, Zhu Weilin, Mi Lijun, et al. 2010. The theory of hydrocarbon generation controlled by source rock and heat from circle distribution of outside-oil fields and inside-gas fields in South China Sea. Acta Sedi Mentologica Sinica (in Chinese), 28(5): 987-1005

Zhao Dapeng. 2007. Seismic images under 60 hotspots: search for mantle plumes. Gondwana Res, 12: 335-355

Zhong Zhihong, Wang Liangshu, Li Xuxuan, et al. 2004. The paleogene basin-filling evolution of Qiongdongnan basin and its relation with seafloor spreading of the South China Sea. Marine Geology & Quaternary Geology (in Chinese), 24(1): 29-36

Zhu Weiling, Zhang Gongcheng, Yang Shaokun, et al. 2007. The Natural Gas Geology in Continental Margin Basin of the Northern South China Sea. Beijing: Petroleum Industry Press, 43-59

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琼东南盆地深水区构造热演化特征及其影响因素分析

doi: 10.1007/s13131-014-0580-9

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Analyses on the tectonic thermal evolution and influence factors in the deep-water Qiongdongnan Basin

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