THE COMPONENT CHARACTERISTICS AND PALEOENVIRONMENTAL SIGNIFICANCES FOR SEDIMENTS IN CORE 83PC FROM THE XISHA TROUGH, SOUTH CHINA SEA

CAI Guanqiang; PENG Xuechao; CHEN Hongjun; ZHANG Jinpeng; ZHANG Yulan

doi:10.3724/SP.J.1140.2012.01077

2012 Vol. 32, No. 1

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Article navigation > Marine Geology & Quaternary Geology > 2012 > 32(1): 77-84

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CAI Guanqiang, PENG Xuechao, CHEN Hongjun, ZHANG Jinpeng, ZHANG Yulan. THE COMPONENT CHARACTERISTICS AND PALEOENVIRONMENTAL SIGNIFICANCES FOR SEDIMENTS IN CORE 83PC FROM THE XISHA TROUGH, SOUTH CHINA SEA[J]. Marine Geology & Quaternary Geology, 2012, 32(1): 77-84. doi: 10.3724/SP.J.1140.2012.01077

Citation:

CAI Guanqiang, PENG Xuechao, CHEN Hongjun, ZHANG Jinpeng, ZHANG Yulan. THE COMPONENT CHARACTERISTICS AND PALEOENVIRONMENTAL SIGNIFICANCES FOR SEDIMENTS IN CORE 83PC FROM THE XISHA TROUGH, SOUTH CHINA SEA[J]. Marine Geology & Quaternary Geology, 2012, 32(1): 77-84. doi: 10.3724/SP.J.1140.2012.01077

THE COMPONENT CHARACTERISTICS AND PALEOENVIRONMENTAL SIGNIFICANCES FOR SEDIMENTS IN CORE 83PC FROM THE XISHA TROUGH, SOUTH CHINA SEA

1 Guangzhou Marine Geological Survey, Guangzhou 510760, China;
2 State Key Laboratory of Marine Geology, Tongji University, Shanghai, 200092, China

Received Date: 20 September 2011

Revised Date: 10 October 2011

Abstract

Abstract

In order to understand the paleo-environmental evolution in the northern South China Sea (SCS) since the last interglacial, the compositions of C-O isotope, calcium carbonate, total organic carbon (TOC) and grain size for sediments in Core 83PC derived from the Xisha trough were investigated. The results showed that the δ18O and δ13C values of planktonic foraminifer exhibited significant glacial-interglacial cycles, controlled by the sea level fluctuation and climate change. The input of terrestrial materials increased during glacial sea level fall, and the sediments had lower carbonate content and higher TOC content; however, it decreased during interglacial sea level rise, and the sediments had higher carbonate content and lower TOC content. The chemical composition of sediments in core 83PC indicates climatic instability in late Pleistocene; and rapid climate changes and low carbonate sedimentation could be identified. The low carbonate contents at depth of 150 cm, 510 cm, 660 cm and 740 cm is thought to be an evidence for the occurrence of global cooling events. And a rapid decrease in carbonate content during early-middle post-glacial period might be resulted from the changes in rainfall. Erosion would be intensified wile heaop rain, and the dilution effect to carbonate wap thus enhanced.
- C-O isotope /
- calcium carbonate /
- total organic carbon /
- paleo-environment /
- Late Quaternary

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References

[1]	Crowley T J. Calcium carbonates preservation patterns in the central North Atlantic during the last 150000 years[J]. Marine Geology, 1983, 51:1-14. Google Scholar
[2]	Berger W H. Pacific carbonate cycles revisited:arguments for and against productivity control[M]. Centenary of Japanese Micropaleontology, Terra, Tokyo. 1992:15-25. Google Scholar
[3]	Miao Q, Thunell R C, Anderson D M. Glacial-Holocene carbonate dissolution and sea surface temperatures in the South China and Sulu Seas[J]. Paleoceanography, 1994, 9:269-290. Google Scholar
[4]	Stephens M P and Kadko D C. Glacial Holocene calcium carbonate dissolution at the central equatorial Pacific seafloor[J]. Paleoceanography, 1997, 12:797-804. Google Scholar
[5]	汪品先. 西太平洋边缘海的冰期碳酸盐旋回[J]. 海洋地质与第四纪地质, 1998, 18(1):1-9. Google Scholar [WANG Pinxian. Glacial carbonate cycles in western pacific marginal seas[J]. Marine Geology and Quaternary Geology, 1998, 18(1):1-9.] Google Scholar
[6]	汪品先. 十五万年来的南海[M]. 上海:同济大学出版社, 1995, 1-184.[WANG Pinxian. South China Sea Since 150000 Years[M]. Shanghai:Publishing House of Tongji University, 1995 Google Scholar , 1-184.] Google Scholar
[7]	Sarnthein M, Wang P X. Response of West Pacific marginal seas to global climatic change[J]. Marine Geology, 1999, 156(1-4), special issue. Google Scholar
[8]	Wang L J, Sarnthein M, Erlenkeuser H, et al. East Asian monsoon climate during the Late Pleistocene:high-resolution sediment records from the South China Sea[J]. Marine Geology, 1999, 156:245-284. Google Scholar
[9]	陈木宏, 涂霞, 郑范, 等. 南海南部近20万年沉积序列与古气候变化关系[J]. 科学通报, 2000, 45(5):542-548. Google Scholar [CHEN Muhong, TU Xia, ZHENG Fan, et al. Relations between sedimentary sequence and paleoclimatic changes during last 200 ka in the southern South China Sea[J]. Chinese Science Bulletin, 2000, 45(14):1334-1340.] Google Scholar
[10]	翦知湣, 成鑫荣, 赵泉鸿, 等.南海北部近60 Ma以来的氧同位素与事件[J]. 中国科学D辑, 2001, 31(10):816-822. Google Scholar [JIAN Zhimin, CHENG Xingrong, ZHAO Quanhong, et al. Oxygen isotope stratigraphy and events in the northern South China Sea during the last 6 million years[J]. Science in China (Series D), 2001, 31(10):816-822.] Google Scholar
[11]	赵泉鸿, 翦知湣, 王吉良, 等. 南海北部晚新生代氧同位素地层学[J]. 中国科学D辑, 2001, 31(10):800-807. Google Scholar [ZHAO Quanhong, JIAN Zhimin, WANG Jiliang, et al. Late Cenozoic oxygen isotope stratigraphy in the north of South China Sea[J]. Science in China (Series D), 2001, 31(10):800-807.] Google Scholar
[12]	汪品先, 翦知湣, 赵泉鸿, 等. 南海演变与季风历史的深海证据[J]. 科学通报, 2003, 48(21):2228-2239. Google Scholar [WANG Pinxian, JIAN Zhimin, ZHAO Quanhong, et al. Evolution of the South China Sea and monsoon history revealed in deep sea records[J]. Chinese Science Bulletin, 2003, 48(21):2228-2239.] Google Scholar
[13]	Wan S M, Li A C, Clift P D, et al. Development of the East Asian summer monsoon:Evidence from the sediment record in the South China Sea since 8.5 Ma[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 2006, 241:139-159. Google Scholar
[14]	Wang P X, Wang L J, Bian Y H, et al. Late Quaternary paleoceanography of the South China Sea:surface circulation and carbonate cycles[J]. Marine Geology, 1995, 127:145-165. Google Scholar
[15]	Chen M T, Huang C Y, Wei K Y. 25000-year Late Quaternary records of carbonate preservation in the South China Sea[J]. Palaeogeography, 1997, 129:155-169. Google Scholar
[16]	Wang L J, Jian Z M, Chen J. Late Quaternary pteropods in the South China Sea:carbonate preservation and paleoenvironmental variation[J]. Marine Micropaleontology, 1997, 32(1/2):115-126. Google Scholar
[17]	钱建兴. 晚第四纪以来南海古海洋学研究[M]. 北京:科学出版社, 1999:1-167.[QIAN Jianxin. A study of paleoceanography in the South China Sea during the late Quaternary[M]. Beijing:Science Press, 1999:1 Google Scholar -167.] Google Scholar
[18]	陈晓良, 赵泉鸿, 翦知湣. 南海北部ODP1148站中新世以来的碳酸盐含量变化及其古环境意义[J]. 海洋地质与第四纪地质, 2002, 22(2):69-74. Google Scholar [CHEN Xiaoliang, ZHAO Quanhong, JIAN Zhimin. Carbonate content changes since the Miocene and paleoenvironmental implications, ODP site 1148, northern South China Sea[J]. Marine Geology and Quaternary Geology, 2002, 22(2):69-74.] Google Scholar
[19]	翦知湣, 陈荣华, 李保华. 冲绳海槽南部20ka来深水底栖有孔虫的古海洋学记录[J]. 中国科学D辑, 1996, 26(5):467-473. Google Scholar [JIAN Zhimin, CHEN Ronghua, LI Baohua. Deep-sea benthic foraminiferal record of the paleoceanography in the southern Okinawa Trough over the last 20000 years[J]. Science in China (Series D), 1996, 26(5):467-473.] Google Scholar
[20]	陈荣华, 孟翊, 李保华, 等. 冲绳海槽南部两万年来碳酸盐溶跃面的变迁[J]. 海洋地质与第四纪地质, 1999, 19(1):25-30. Google Scholar [CHEN Ronghua, MENG Yi, LI Baohua, et al. Variations in the lysocline of carbonate in the southern Okinawa trouch during the last 20000 years[J]. Marine Geology and Quaternary Geology, 1999, 19(1):25-30.] Google Scholar
[21]	李学杰, 刘坚, 陈芳, 等. 南海北部晚更新世以来的碳酸盐旋回[J]. 海洋地质与第四纪地质, 2008, 28:431-436.[LI Xuejie, LIU Jian, CHEN Fang, et a1. Google Scholar Carbonate cycles since late Pleistocene in the northern South China Sea[J]. Marine Geology and Quaternary Geology, 2008, 28:431-436.] Google Scholar
[22]	李丽, 王慧, 罗布次仁, 等. 南海北部4万年以来有机碳和碳酸盐含量变化及古海洋学意义[J]. 海洋地质与第四纪地质, 2008, 28(6):79-85. Google Scholar [LI Li, WANG Hui, LUO Buciren, et al. The Characterizations and paleoceanographic significances of organic and inorganic carbon in northern South China Sea during past 40 ka[J]. Marine Geology and Quaternary Geology, 2008, 28(6):79-85.] Google Scholar
[23]	李学杰, 江茂生. 南海北部全新世早期低钙事件及其古气候解释[J]. 古地理学报, 2003, 5(3):355-364. Google Scholar [LI Xuejie, JIANG Maosheng. Low carbonate event in northern South China Sea during the early Holocene and their paleoclimatic significance[J]. Journal of Palaeogeography, 2003, 5(3):355-364.] Google Scholar
[24]	Yang X Q, Friedrich H, Wu N Y, et al. Geomagnetic paleointensity dating of South China Sea sediments for the last 130 ka[J]. Earth and Planetary Science Letters, 2009, 284:258-266. Google Scholar
[25]	翦知湣, 王律江, Kienast M. 南海晚第四纪表层古生产力与东亚季风变迁[J]. 第四纪研究, 1999, 19(1):32-40. Google Scholar [JIAN Zhimin, WANG Lujiang, Kienast M. Late Quaternary surface paleoproductivity and variations of the East Asian monsoon in the South China Sea[J]. Quaternary Sciences, 1999, 19(1):32-40.] Google Scholar
[26]	黄宝琦, 翦知湣, 林慧玲. 南海东北部晚第四纪古生产力变化[J]. 海洋地质与第四纪地质, 2000, 20(2):65-68. Google Scholar [HUANG Baoqi, JIAN Zhimin, LIN Huiling. Late Quaternary changes of paleoproductivity in the northeastern South China Sea[J]. Marine Geology and Quaternary Geology, 2000, 20(2):65-68.] Google Scholar
[27]	Steinke S, Chiu H I, Yu P S, et al. On the influence of sea level and monsoon climate on the southern South China Sea freshwater budget over the last 22000 years[J]. Quaternary Science Review. 2006, 25, 14751488. Google Scholar
[28]	Sarnthein M, Pflaumann U, Ross R, et al. Transfer functions to reconstruction ocean palaeoproductivity:a comparison.[C]//Upwelling systems:evolution since the Early Miocene. Geological Society Special Publication Geological society, London, 1992:411-427. Google Scholar
[29]	Lyle M. Climatically forced organic carbon burial in the equatorial Atlantic and Pacific oceans[J]. Nature, 1988, 335(6190):529-532. Google Scholar
[30]	Bond G, Broecker W S, Johnson S, et a1. Correlations between climate records from North Atlantic sediments and Greenland ice[J]. Nature, 1993, 365:143-147. Google Scholar
[31]	Bond G, Lotti R. Iceberg discharges into the North Atlantic on millennial time scales during the last glaciation[J]. Science, 1995, 267:1005-1010. Google Scholar
[32]	钱建兴. 南海8KL岩心的氧同位素记录与海平面变化[J]. 地质学报, 1994, 68(4):368-378. Google Scholar [QIAN Jianxin. Oxygen isotope record of core 8KL of the South China Sea and sea-level change[J]. Acta Geologica Sinica, 1994, 68(4):368-378.] Google Scholar
[33]	郑洪波, 杨文光, 贺娟, 等. 南海的氧同位素3期[J]. 第四纪研究, 2008, 28(1):68-78. Google Scholar [ZHENG Hongbo, YANG Wenguang, HE Juan, et al. Marine isotope stage 3(MIS 3) of South China Sea[J]. Quaternary science, 2008, 28(1):68-78.] Google Scholar
[34]	姚檀栋, 徐柏青, 蒲健辰. 青藏高原古里雅冰心记录的轨道、亚轨道时间尺度的气候变化[J]. 中国科学D辑, 2001, (31):287-294.[YAO Tandong, XU Baiqing, PU Jianchen. Climatic changes on orbital and sub-orbital time scale recorded by Guliya ice core in Tibetan Plateau[J]. Science in China (Series D), 2001 Google Scholar , 44(Supp 1):360-368.] Google Scholar
[35]	Oppo D W, Sun Y. Amplitude and timing of sea-surface temperature change in the northern South China Sea:Dynamic link to the East Asian monsoon[J]. Geology, 2005, 33(10):785-788. Google Scholar