Late Oligocene Tectonic Event in the Northern South China Sea and Its Implications
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摘要: ODP1148站以及珠江口盆地沉积物均记录了渐新世末发生的重大地质构造事件, 这一构造事件在时间上与南海扩张轴发生跳跃的时间十分吻合, 是渐新世以来南海构造演化史上最为重大的构造事件, 涉及到南海扩张、盆地类型转化、沉积物源变迁等一系列相关联的重大地质事件.伴随这一地质构造事件, 南海北部沉积物成分发生剧烈改变, 出现渐新世-中新世地球化学成分上的跳跃, 在深海沉积中发生沉积间断及滑塌事件, 并使珠江口盆地由断陷型盆地转为坳陷型盆地, 白云凹陷由渐新世晚期的浅水陆架环境转为中新世以后的深水陆坡环境.可以认为, 这次构造运动奠定了我国现代的地理格局, 也标志着我国东部陆相盆地最佳烃源岩形成期的结束, 在南海乃至东亚地区影响深远.Abstract: A significant tectonic event was recorded in late Oligocene sediments from ODP Site 1148 and Pearl River Mouth Basin.This tectonic event coincided with the seafloor spreading axis jump event across the Oligocene/Miocene boundary, leading to a series of changes not only in seafloor spreading direction but also types of sedimentary basins and sediment provenances, and representing the greatest tectonic activity in the South China Sea region since the Oligocene.Sedimentation breaks and slumps as well as obvious changes in sediment composition across the Oligocene/Miocene boundary indicate the existence of the tectonic event, which transformed the Pearl River Mouth Basin from a graben basin to a down-warped basin, and the sedimentary environment in the Baiyun Sag area from continental shelf in the late Oligocene to continental slope since the early Miocene.It played a key role in the transformation of the general topographic character in continental China and ended a period of accumulation of good source rock for petroleum offshore.Therefore, this tectonic event has a profound influence on the evolution of the South China Sea and East Asia.
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Key words:
- South China Sea /
- Baiyun Sag /
- Oligocene /
- seafloor spreading /
- tectonic event
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Ben-Avraham, Z., Uyeda, S., 1973. The evolution of the Chi-na basin and the Mesozoic paleogeography of Borneo. Earth and Planetary Science Letters, 18 (2): 365-376. doi: 10.1016/0012-821X(73)90077-0 Briais, A., Patriat, P., Tapponnier, P., 1993. Updated inter-pretation of magnetic anomalies and seafloor spreading stages in the South China Sea: Implications for the Ter-tiary tectonics of Southeast Asia. Journal of Geophysi-cal Research, 98 (B4): 6299-6328. doi: 10.1029/92JB02280 Chen, C. M., Shi, H. S., Xu, S. C., et al., 2003. Forming condi-tions of oil reservoirs in Tertiary of the Pearl River Mouth basin. Science Press, Beijing, 1-266 (in Chinese). Clift, P., Lee, J. I., Clark, M., et al., 2002. Erosional re-sponse of South China to arc rifting and monsoonal strengthening, a record fromthe South China Sea. Ma-rine Geology, 184 (3-4): 207-226. doi: 10.1016/S0025-3227(01)00301-2 Fang, D. Y., Wang, R. J., Shao, L., et al., 2002. Silica dia-genesis of deep-sea Oligocene at ODP Site1148, the South China Sea. Marine Geology & Quaternary Geolo-gy, 22 (2): 75-79 (in Chinese with English abstract). Fang, N. Q., Yao, B. C., Wan, L., et al., 2007. The velocity structure of the lithosphere and the origin of sedimenta-ry basins in the South China and northern margin of the South China Sea. Earth Science—Journal of China University of Geosciences, 32 (2): 147-154 (in Chinese with English abstract). Feng, Z. Q., Zeng, W. J., 1982. Tectonic evolution of Zhu-jiangkou (Pearl-River-Mouth) basin and origin of South China Sea. Acta Geologica Sinica, 56 (3): 212-222 (inChinese with English abstract). Gradstein, F. M., Ogg, J. G., Smith, A. G., 2004. A geologic time scale2004. Cambridge Univ. Press, Cambridge. Li, Q. Y., Wang, P. X., Zhao, Q. H., et al., 2006. A 33 Ma lithostratigraphic record of tectonic and paleoceano-graphic evolution of the South China Sea. Marine Geolo-gy, 230 (3-4): 217-235. doi: 10.1016/j.margeo.2006.05.006 Li, Q. Y., Zheng, H. B., Zhong, G. F., et al., 2005a. Tectonic events indicated by late Oligocene slumped deposits from the South China Sea. Earth Science—Journal of China University of Geosciences, 30 (1): 19-24 (in Chi-nese with English abstract). Li, Q. Y., Jian, Z. M., Su, X., 2005b. Late Oligocene rapid transformations in the South China Sea. Marine Micro-paleontology, 54 (1-2): 5-25. Li, X. H., Liu, Y., Tu, X. L., et al., 2002. Precise determina-tion of chemical compositions in silicate rocks using ICP-AES and ICP-MS: A comparative study of sample digestion techniques of alkali fusion and acid dissolu-tion. Geochimica, 31 (3): 289-294 (in Chinese with English abstract). Li, X. H., Wei, G. J., Shao, L., et al., 2003. Geochemical and Nd isotopic variations in sediments of the South China Sea: A response to Cenozoic tectonism in SE Asia. Earth and Planetary Science Letters, 211 (3-4): 207-220. doi: 10.1016/S0012-821X(03)00229-2 Liu, Y., Liu, H. C., Li, X. H., 1996. Simultaneous and pre-cise determination of40trace elements in rock samples using ICP-MS. Geochimica, 25 (6): 552-558 (in Chi-nese with English abstract). Liu, Z. S., Zhao, H. T., Fan, S. Q., et al., 2002. Geology of the South China Sea. Science Press, Beijing, 494-501 (in Chinese). Pang, X., Chen, C. M., Shao, L., et al., 2007. Baiyun move-ment, a great tectonic event on the Oligocene-Miocene boundary inthe northern South China Sea andits impli-cations. Geological Review, 53 (2): 145-151 (in Chinese with English abstract). Pang, X., Chen, C. M., Shi, H. S., et al., 2005. Response be-tween relative sea-level change and the Pearl River deep-water fan system in the South China Sea. Earth Science Frontiers, 12 (3): 167-177 (in Chinese withEnglish abstract). Pang, X., Chen, C. M., Wu, M. S., et al., 2006. The Pearl River deep-water fan systems and significant geological events. Advances in Earth Science, 21 (8): 793-799 (in Chinese with English abstract). Shao, L., Lei, Y. C., Pang, X., et al., 2005. Tectonic evolu-tion and its controlling for sedimentary environment in Pearl River Mouth basin. Journal of Tongji University (Natural Science), 33 (9): 1177-1181 (in Chinese with English abstract). Shao, L., Li, X. H., Wang, P. X., et al., 2004. Sedimentary record of the tectonic evolution of the South China Sea since the Oligocene—Evidence from deep sea sediments of ODP Site1148. Advances in Earth Science, 19 (4): 539-544 (in Chinese with English abstract). Shao, L., You, H. Q., Hao, H. J., et al., 2007. Petrology and depositional environments of Mesozoic strata in the northeastern South China Sea. Geological Review, 53 (2): 164-169 (in Chinese with English abstract). Tang, S., Shao, L., Zhao, Q. H., 2004. Characteristics of clay mineral in South China Sea since Oligocene and its sig-nificance. Acta Sedimentologica Sinica, 22 (2): 337-342 (in Chinese with English abstract). Taylor, B., Hayes, D. E., 1983. The tectonic evolution of the South China basin. In: Hayes, D. E., ed., The tectonic and geologic evolution of Southeast Asian seas and islands, part2. Geophysical Monograph27, AGU, Washington, 23-56. Wang, C. W., Chen, H. H., Chen, C. M., et al., 2007. Char-acteristics of the Baiyun deep-water fan and main accu-mulation controlling factors in Pearl River Mouth ba-sin, South China Sea. Earth Science—Journal of China University of Geosciences, 32 (2): 247-252, 266 (inChinese with English abstract). Wang, P. X., Jian, Z. M., Zhao, Q. H., et al., 2003b. Evolu-tion of the South China Sea and monsoon history re-vealed in deep-sea records. Chinese Science Bulletin, 48 (23): 2549-2561. doi: 10.1360/03wd0156 Wang, P. X., Prell, W., Blum, P., et al., 2000. Proceedings of ocean drlling program, initial reports. Volume 184, College Station: Ocean Drilling Program, 25-38. Wang, P. X., Zhao, Q. H., Jian, Z. M., et al., 2003a. Thirty million year deep-sea records in the South China Sea. Chinese Science Bulletin, 48 (23): 2524-2535. doi: 10.1007/BF03037016 Wu, G. X., Qin, J. G., Mao, S. Z., 2003. Deep-water Oligo-cene pollen record from South China Sea. Chinese Sci-ence Bulletin, 48 (22): 2511-2515. Yao, B. C., 1996. Tectonic evolution of the South China Sea in Cenozoic. Marine Geology & Quaternary Geology, 16 (2): 1-13 (in Chinese with English abstract). Yao, B. C., Wan, L., 2006. Evolution and 3D structure of the lithosphere of the South China Sea. Geological Publish-ing House, Beijing, 180-201 (in Chinese). Yao, B. C., Zeng, W. J., Hayes, D., et al., 1994. The geolog-ical memoir of South China Sea surveyedjointly by Chi-na & USA. Geological Publishing House, Beijing, 1-204 (in Chinese). Zhang, W. Y., 1986. Tectonics of China and its adjacent re-gions. Science Press, Beijing, 344-356 (in Chinese). Zhao, Q. H., 2005. Late Cainozoic ostracod faunas and paleo-environmental changes at ODP Site1148, South China Sea. Marine Micropaleontology, 54 (1-2): 27-47. doi: 10.1016/j.marmicro.2004.09.002 陈长民, 施和生, 许仕策, 等, 2003. 珠江口盆地(东部) 第三系油气藏形成条件. 北京: 科学出版社, 1-266. 房殿勇, 王汝建, 邵磊, 等, 2002. 南海ODP1148站深海相渐新统硅质成岩作用. 海洋地质与第四纪地质, 22 (2): 75-79. https://www.cnki.com.cn/Article/CJFDTOTAL-HYDZ200202014.htm 方念乔, 姚伯初, 万玲, 等, 2007. 华南和南海北部陆缘岩石圈速度结构特征与沉积盆地成因. 地球科学——中国地质大学学报, 32 (2): 147-154. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200702000.htm 冯志强, 曾维军, 1982. 珠江口盆地的构造演化与南海之形成. 地质学报, 56 (3): 212-222. https://www.cnki.com.cn/Article/CJFDTOTAL-DZXE198203002.htm 李前裕, 郑洪波, 钟广法, 等, 2005a. 南海晚渐新世滑塌沉积指示的地质构造事件, 地球科学——中国地质大学学报, 30 (1): 19-24. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200501001.htm 李献华, 刘颖, 涂湘林, 等, 2002. 硅酸盐岩石化学组成的ICP-AES和ICP-MS准确测定: 酸溶与碱熔分解样品方法的对比. 地球化学, 31 (3): 289-294. doi: 10.3321/j.issn:0379-1726.2002.03.010 刘颖, 刘海臣, 李献华, 1996. 用ICP-MS准确测定岩石样品中的40余种微量元素. 地球化学, 25 (6): 552-558. doi: 10.3321/j.issn:0379-1726.1996.06.004 刘昭蜀, 赵焕庭, 范时清, 等, 2002. 南海地质. 北京: 科学出版社, 494-501. 庞雄, 陈长民, 邵磊, 等, 2007. 白云运动: 南海北部渐新统-中新统重大地质事件及其意义. 地质论评, 53 (2): 145-151. doi: 10.3321/j.issn:0371-5736.2007.02.001 庞雄, 陈长民, 施和生, 等, 2005. 相对海平面变化与南海珠江深水扇系统的响应. 地学前缘, 12 (3): 167-177. doi: 10.3321/j.issn:1005-2321.2005.03.018 庞雄, 陈长民, 吴梦霜, 等, 2006. 珠江深水扇系统沉积和周边重要地质事件. 地球科学进展, 21 (8): 793-799. doi: 10.3321/j.issn:1001-8166.2006.08.003 邵磊, 雷永昌, 庞雄, 等, 2005. 珠江口盆地构造演化及对沉积环境的控制作用. 同济大学学报(自然科学版), 33 (9): 1177-1181. doi: 10.3321/j.issn:0253-374X.2005.09.007 邵磊, 李献华, 汪品先, 等, 2004. 南海渐新世以来构造演化的沉积记录——ODP1148站深海沉积物中的证据. 地球科学进展, 19 (4): 539-544. doi: 10.3321/j.issn:1001-8166.2004.04.008 邵磊, 尤洪庆, 郝沪军, 等, 2007. 南海东北部中生界岩石学特征及沉积环境. 地质论评, 53 (2): 164-169. doi: 10.3321/j.issn:0371-5736.2007.02.003 唐松, 邵磊, 赵泉鸿, 2004. 南海渐新世以来粘土矿物的演变特征及意义. 沉积学报, 22 (2): 337-342. doi: 10.3969/j.issn.1000-0550.2004.02.021 王存武, 陈红汉, 陈长民, 等, 2007. 珠江口盆地白云深水扇特征及油气成藏主控因素. 地球科学——中国地质大学学报, 32 (2): 247-252, 266. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200702013.htm 汪品先, 赵泉鸿, 翦知湣, 等, 2003a. 南海三千万年的深海记录. 科学通报, 48 (21): 2206-2215. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB200321002.htm 吴国瑄, 覃军干, 茅绍智, 2003. 南海深海相渐新统孢粉记录. 科学通报, 48 (17): 1868-1871. doi: 10.3321/j.issn:0023-074X.2003.17.011 姚伯初, 1996. 南海海盆新生代的构造演化史. 海洋地质与第四纪地质, 16 (2): 1-13. https://www.cnki.com.cn/Article/CJFDTOTAL-HYDZ602.000.htm 姚伯初, 万玲, 2006. 中国南海海域岩石圈三维结构及演化. 北京: 地质出版社, 180-201. 姚伯初, 曾维军, Hayes, D., 等, 1994. 中美合作调研南海地质专报GMSCS. 北京: 地质出版社, 1-204. 张文佑, 1986. 中国及邻区海陆大地构造. 北京: 科学出版社, 344-356. -
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