48万年来南海及周边地区火山喷发作用的沉积学记录

陈国成, 郑洪波, 李建如, 谢昕, 梅西

陈国成, 郑洪波, 李建如, 谢昕, 梅西. 48万年来南海及周边地区火山喷发作用的沉积学记录[J]. 海洋地质与第四纪地质, 2007, 27(4): 69-76.
引用本文: 陈国成, 郑洪波, 李建如, 谢昕, 梅西. 48万年来南海及周边地区火山喷发作用的沉积学记录[J]. 海洋地质与第四纪地质, 2007, 27(4): 69-76.
CHEN Guo-cheng, ZHENG Hong-bo, LI Jian-ru, XIE Xin, MEI Xi. SEDIMENTARY RECORDS OF VOLCANIC ACTIVITIES IN THE SOUTH CHINA SEA OVER THE PAST 480 ka[J]. Marine Geology & Quaternary Geology, 2007, 27(4): 69-76.
Citation: CHEN Guo-cheng, ZHENG Hong-bo, LI Jian-ru, XIE Xin, MEI Xi. SEDIMENTARY RECORDS OF VOLCANIC ACTIVITIES IN THE SOUTH CHINA SEA OVER THE PAST 480 ka[J]. Marine Geology & Quaternary Geology, 2007, 27(4): 69-76.

48万年来南海及周边地区火山喷发作用的沉积学记录

基金项目: 

科技部"中荷科技联盟"项目(2004CB720506)

国家自然科学基金项目(40676033)

详细信息
    作者简介:

    陈国成(1982-),男,硕士生,主要从事海洋地质与古海洋学研究,E-mail:gcchen6@yahoo.com.cn

  • 中图分类号: P736.2

SEDIMENTARY RECORDS OF VOLCANIC ACTIVITIES IN THE SOUTH CHINA SEA OVER THE PAST 480 ka

  • 摘要: 通过对南海西部越南岸外MD05-2901孔的研究,建立了48万年来高分辨率的氧同位素年代地层。针对磁化率结果显示的13层厚度超过4 cm的磁化率峰值层,将其年代和菲律宾巴拉望岛岸外的MD972142孔的火山灰层进行对比,发现其中10层完全对应,证明磁化率峰值层是由火山喷发作用造成的,说明48万年来菲律宾火山带喷发的粉尘可以沉积到南海西部。磁化率峰值层样品的粒度特征明显不同,呈双峰态分布,粗颗粒组分较多,空隙率高,密度和颜色反射率较小。由此证明,磁化率和粒度分析可用于寻找肉眼不可见的火山喷发作用的沉积学记录。研究发现的受火山喷发作用影响的特殊层位,可作为地层对比的参比标志,并为追溯48万年来大气和洋流的变迁提供了参考资料。
    Abstract: Magnetic susceptibility (MS) and grain size distribution of core MD05-2901, which is located in the upwelling area off eastern Vietnam in the South China Sea, were measured. Oxygen isotope stratigraphy indicates that the core spans a time period of 480 ka. Magnetic susceptibility curve displays glacial-interglacial variations in general, but with prominent peaks. Ten out of thirteen MS peak layers, which are thicker than 4 cm, correlate well with the volcanic ash layers recognized in core MD972142 offshore northwestern Palawan. The result indicates that the volcanic material from the Philippine seismic zone could have reached the western part of the South China Sea during the last 480 ka. The content of size fraction>16μm is relatively high in the layers of high MS values. In addition, grain size distribution of these layers shows distinct double-mode, indicating input from volcanic activities. MS and grain size features of the sediments can be used as an indicator of volcanic activities, which otherwise can't be examined easily by naked-eye. The MS peaks are also a useful tool for chronology and stratigraphic correlations.
  • [1] 冯文科,薛万俊,杨达源. 南海北部晚第四纪地质环境[M]. 广州:广东科技出版社,1988:156-162.[Feng Wen-ke, XUE Wan-jun, YANG Da-yuan. The Geological Environment of Late Quaternary in the Northern South China Sea[M]. Guangzhou:Guangdong Science and Technology Publishing House, 1988:156

    -162.]

    [2]

    Kennett J P. Marine tephrochronology[C]//The Sea, Vol. 7. Wiley, New York, 1981:1373-1436.

    [3]

    Oppenheimer Clive. Limited global change due to the largest known Quaternary eruption, Toba≈74kyr BP?[J].Quaternary Science Reviews, 2002, 21:1593-1609.

    [4]

    Wiesner M G, Wang Y, Zheng L. Fallout of volcanic ash to the deep South China Sea induced by the 1991 eruption of Mount Pinatubo (Philippines)[J]. Geology, 1995, 23:885-888.

    [5]

    Wiesner M G, Wetzel A, Catane S G, et al. Grain size, area thickness distribution and controls on sedimentation of the 1991 Mount Pinatubo tephra layer in the South China Sea[J]. Bulletin of Volcanology, 2004, 66:226-242.

    [6] 杨育标,范时清. 南海深海晚第四纪火山沉积物及其起源探讨[J]. 热带海洋,1990,9(1):52-59.

    [YANG Yu-biao, FAN Shi-qing. Research on volcanic sediments and origion of volcanic substance in South China Sea during late Quaternary[J]. Tropical Oceanography, 1990, 9(1):52-59.]

    [7] 杨群慧,林振宏,张富元,等. 南海东部重矿物分布特征及其影响因素[J]. 青岛海洋大学学报自然科学版,2002,32(6):956-964.

    [YANG Qun-hui, LIN Zhen-hong, ZHANG Fu-yuan, et al. The distribution characteristics of heavy minerals in the east of South China Sea and their controlling factors[J]. Journal of Ocean University of Qingdao, 2002, 32(6):956-964.]

    [8]

    Bühring C, Sarnthein M, Leg 184 Shipboard Scientific Party. Toba ash layers in the South China Sea:evidence of contrasting wind directions during eruption ca. 74ka[J]. Geology, 2000, 28:275-278.

    [9]

    Song S R, Chen C H, Lee M Y, et al. Newly discovered eastern dispersal of the youngest Toba Tuff[J]. Marine Geology, 2000, 167:303-312.

    [10]

    Liang X, Wei G, Shao L, et al. Records of Toba eruptions in the South China Sea:chemical characteristics of the glass shards from ODP 1143A[J]. Science in China (Series D), 2001, 44:871-878.

    [11]

    Liu Zhi-fei, Colin C, Trentesaux A. Major element geochemistry of glass shards and minerals of the Youngest Toba Tephra in the southwestern South China Sea[J]. Journal of Asian Earth Sciences, 2006, 27:99-107.

    [12] 陈文斌,周福根. 南海北部晚第四纪火山玻璃的分布及其地层学意义[C]//南海海洋沉积化学过程与地球化学研究. 北京:海洋出版社, 1993:39-45.[CHEN Wen-bin, ZHOU Fu-gen. A study of volcanic glass in northern South China Sea during the last 100 ka[C]//Contributions of Sedimentation Process and Geochemistry of the South China Sea. Beijing:China Ocean Press, 1993

    :39-45.]

    [13] 王慧中,周福根,翦知湣. 中沙台缘碳酸盐软泥中的火山碎屑及其古环境意义[C]//南海晚第四纪古海洋学研究.青岛:青岛海洋大学出版社,1992:42-55.[WANG Hui-zhong, ZHOU Fu-gen, JIAN Zhi-min. Volcanic clasts in the periplatform carbonate ooze near Zhongsha Islands and their bearing on paleo-environment[C]//Contributions to Late Quaternary Paleoceanography of the South China Sea. Qingdao:Qingdao Ocean University Press, 1992:42

    -55.]

    [14]

    Wei Kuo-Yen, Lee Teh-Quei, et al. Late Pleistocene volcanic ash layers in Core MD972142, offshore from northwestern Palawan, South China Sea:A preliminary report[J]. TAO, 1998, 9(1):143-152.

    [15]

    Wei Kuo-Yen, Chiu Tzu-Chien, Chen Yue-Gau. Toward establishing a maritime proxy record of the East Asian summer monsoons for the Late Quaternary[J]. Marine Geology, 2003, 201:67-79.

    [16]

    Ku Y P, Chen C H, Song S R, et al. The volcanic periodicity in central and southern Luzon, Philippines:as inferred from tephra study in the ocean core. Available online at https://gra103.aca.ntu.edu.tw/gdoc/D90224003a.pdf

    [17] 时振波,林晓彤,杨慧群,等. 南海东部晚更新世以来的火山沉积特征[J]. 中国海洋大学学报,2004,34(6):1063-1068.

    [SHI Zhen-bo, LIN Xiao-tong, YANG Hui-qun, et al. Volcanic sediments in the eastern South China Sea during the late Pleistocene epoch[J]. Periodical of Ocean University of China, 2004, 34(6):1063-1068.]

    [18] 王汝建. 南沙海区晚更新世以来的火山灰及其地质意义[J]. 海洋地质与第四纪地质,2000, 20(1):51-56.

    [WANG Ru-jian. Pleistocene volcanic shards and their geological significance in the Nansha area of the South China Sea[J]. Marine Geology and Quaternary Geology, 2000, 20(1):51-56.]

    [19] 陈忠,夏斌,颜文,等. 南海火山玻璃的分布特征、化学成分及源区探讨[J]. 海洋学报,2005,27(5):73-81.

    [CHEN Zhong, XIA Bin, YAN Wen, et al. Distribution, chemical characteristics and source area of volcanic class in the South China Sea[J]. Acta Oceanologica Sinica, 2005, 27(5):73-81.]

    [20]

    Laj C, Wang P, Balut Y. MD147-Marco Polo IMAGESⅫ Cruise Report[R]. France:Institut Paul-Emile Victor (IPEV), 2005.

    [21] 谢昕,郑洪波,陈国成,等.古环境研究中深海沉积物粒度测试的预处理方法[J].沉积学报,2007(待刊).[XIE Xin, ZHENG Hong-bo, CHEN Guo-cheng, et al. Pretreatment method of grain size measurement of marine sediments in paleoenvironment research[J]. Acta Sedimentologica Sinica, 2007(in press).]
    [22]

    Imbrie J, Hays J D, Martinson D G, et al. The orbital theory of pleistocene climate:support from a revised chronology of the marine δ18O record[C]//In:Berger A, Imbrie J, Hays J D (eds). Milankovitch and Climate. Holland:D. Reidel, 1984:269-307.

    [23] 汪品先. 十五万年来的南海[M]. 上海:同济大学出版社,1995.[WANG Pin-xian (eds.). The South China Sea During the Last 150000 Years[M]. Shanghai:Tongji University Press, 1995.]
    [24]

    Wang Pin-xian, Wang Lue-jiang, Bian Yun-hua, et al. Late Quqternary paleoceanography of the South China Sea:surface circulation and carbonate cycles[J]. Marine Geology, 1995, 127:145-165.

    [25]

    Barton C E, Lackie M, Peerdeman F M. Environmental control of magnetic properties of upper-slope sediments near the great barrier reef:results from leg 133, site 820[J]. Proceedings of the Ocean Drilling Program, Scientific Results. 1993, 133:543-562.

计量
  • 文章访问数:  1818
  • HTML全文浏览量:  229
  • PDF下载量:  22
  • 被引次数: 0
出版历程
  • 收稿日期:  2007-05-30
  • 修回日期:  2007-06-11

目录

    /

    返回文章
    返回