ECO-ENVIRONMENTAL INFORMATION RECORDED IN THE LAKE SEDIMENTS OF THE DONGDAO ISLAND, SOUTH CHINA SEA
-
摘要: 东岛牛塘为目前在西沙群岛少见的淡水湖泊,发育保存完好的沉积物。文章通过对一根长126cm的沉积柱开展多方面的沉积学分析,包括沉积物的岩性特征,反映碳酸盐含量的白度、CaO和LOI950℃以及反映有机质含量的TOC,TN,TS和LOI550℃等地球化学指标随深度的变化特征,沉积物和环境介质的碳、氮同位素的对比分析,沉积物的稀土元素和Sr,F,P,Se等元素地球化学特征。结果认为:该湖泊沉积剖面自上而下可分成3个具有明显不同沉积学特征的沉积单元,其中25～96cm的沉积层明显地受到了海鸟粪的影响。识别出的海鸟粪土沉积层,为进一步研究历史时期岛屿鸟类生态系统和气候演化提供了良好的信息载体。Abstract: The Cattle Pond on the Dongdao Island is a rarely observed freshwater lake in Xisha Islands of South China Sea. From the Cattle Pond, we collected a 126cm long and well-preserved sediment core that contains seabird feces. In this paper, we have carried out multiple sedimentological analyses including the lithological characteristics of sediments, white degree reflecting carbonate content, geochemical indices such as LOI950℃, TOC, TN, TS and LOI550℃, the carbon and nitrogen isotopic compositions and chemical element contents （REE, Sr, F, P, Se, CaO etc.） in the lacustrine sediments and environmental mediums.
-
Key words:
- the Dong Island /
- South China Sea /
- lacustrine sediments /
- sedimentology
-
-
[1] 陈宜瑜,陈泮勤,葛全胜等.全球变化研究进展与展望.地学前缘,2002,9(1):11～18Chen Yiyu, Chen Panqin, Ge Quansheng et al. Global change research: Progress and prospect. Earth Science Frontiers, 2002,9(1):11～18
[2] 安芷生,符淙斌. 全球变化科学的进展. 地球科学进展,2001,16(5):671～680An Zhisheng, Fu Congbin. The progress in global change science. Advance in Earth Sciences, 2001,16(5):671～680
[3] 刘东生. 全球变化和可持续发展科学. 地学前缘,2002,9(1):1～9Liu Tungsheng. Global changes and sustainability science. Earth Science Frontiers, 2002,9(1):1～9
[4] 刘东生. 开展"人类世"环境研究,做新时代地学的开拓者--纪念黄汲清先生的地学创新精神. 第四纪研究,2004,24(4):369～378Liu Tungsheng. Demand of anthropocene study in the new stage of geoscience: In honor of late geologist Huang Jiqing for his innovative spirit. Quaternary Sciences, 2004, 24(4):369～378
[5] 赵焕庭. 西沙群岛考察史. 地理研究, 1996, 15(4):55～65Zhao Huanting. History of expeditions to Xisha Islands. Geographical Research,1996,15(4):55～65
[6] 业治铮,何起祥,张明书等. 西沙群岛岛屿类型划分及其特征的研究. 海洋地质与第四纪地质,1985, 5(1):1～13Ye Zhizheng, He Qixiang, Zhang Mingshu et al. Classification and characteristics of islands in the Xisha Archipelago. Marine Geology & Quaternary Geology, 1985, 5(1):1～13
[7] 卢演俦,杨学昌,贾蓉芬. 我国西沙群岛第四纪生物沉积物及成岛时期的探讨. 地球化学,1979, 2:93～102Lu Yanchou, Yang Xuechang, Jia Rongfen. Quaternary biological sediments in the Xisha Archipelago, China and a discussion on the age of island-formation. Geochimica, 1979, 2: 93～102
[8] 中国科学院南京土壤研究所西沙群岛考察组著. 我国西沙群岛的土壤和鸟粪磷矿. 北京:科学出版社,1977.1～65Exploration Group of Xisha Islands, Institute of Soil Science, Chinese Academy of Sciences. Soil and Guano Phosphate Rocks of Xisha Islands. Beijing: Science Press, 1977. 1～65
[9] 龚子同,黄标,周瑞荣. 南海诸岛土壤的地球化学特征及其生物有效性. 土壤学报,1997,34(1):10～27Gong Zitong, Huang Biao, Zhou Ruirong. Pedogeochemistry and bioavailability of soils in South China Sea Islands. Acta Pedologica Sinica, 1997, 34(1): 10～27
[10] 龚子同,刘良梧,周瑞荣. 南海诸岛土壤的形成和年龄. 第四纪研究,1996,(1):88～95Gong Zitong, Liu Liangwu, Zhou Ruirong. Formation of the soils in the South China Sea Islands and their ages, Quaternary Sciences, 1996,(1):88～95
[11] 广东省植物研究所西沙群岛植物调查队编著. 我国西沙群岛的植物和植被. 北京: 科学出版社,1977. 1～127Xisha Plant Investigation Team of Plant Institute in Guangdong Province. Plants and Vegetations of Xisha Islands of China. Beijing: Science Press, 1977.1～127
[12] 海南省海洋厅编. 海南省海岛资源综合调查专业报告集. 北京:海洋出版社,1999. 1～1 174Hainan Ocean Administration ed. The Professional Proceedings of the Integrated Investigation Research on Sea Islands Resource of Hainan Province. Beijing: China Ocean Press, 1999.1～1 174
[13] 孙立广,赵三平,刘晓东等. 西沙群岛生态环境报告. 自然杂志,2005,27(2):79～84 Sun Liguang, Zhao Sanping, Liu Xiaodong et al. An eco-environmental report on Xisha Archipelago,South China Sea. Chinese Journal of Nature, 2005, 27(2):79～84
[14] Sun Liguang, Xie Zhouqing, Zhao Junling. The sediments of lake on the Ardley Island, Antarctica: Identification of penguin～dropping soil. Chinese Journal of Polar Science, 2001,12(1): 1～8
[15] Sun Liguang, Xie Zhouqing, Zhao Junling. A 3,000-year record of penguin populations. Nature,2000,407: 858
[16] Sun Liguang, Xie Zhouqing. Relics: Penguin population programs. Science Progress,2001,84(1): 31～44
[17] Sun Liguang, Liu Xiaodong, Yin Xuebin et al. A 1 500 year record of Antarctic seal populations in response to climate change. Polar Biology, 2004, 27: 495～501
[18] Sun Liguang, Zhu Renbin, Yin Xuebin et al. A geochemical method for reconstruction of the occupation history of penguin colony in the Maritime Antarctic. Polar Biology, 2004, 27:670～678
[19] Sun Guoqing, Xing Guangxi, Cao Yacheng et al. Study on variation in 15N natural abundance: Ⅰ. Characteristics of variation in 15N natural abundance of forest soils. Pedosphere, 1991, 1(3): 277～281
[20] Dean W E Jr. Determination of carbonate and organic matter in calcareous sediments and sedimentary rocks by loss on ignition: Comparison with other methods. Journal of Sediment Petrology, 1974,44: 242～248
[21] Heiri O, Lotter A F, Lemcke G. Loss on ignition as a method for estimating organic and carbonate content in sediments: Reproducibility and comparability of results. Journal of Paleolimnology, 2001, 25: 101～110
[22] Liu Xiaodong, Sun Liguang, Yin Xuebin. Textural and geochemical characteristics of proglacial sediments: A case study in the foreland of Nelson Ice Cap, Antarctica. Acta Geological Sinca, 2004, 78(4): 970～981
[23] 余克服,钟晋梁,赵建新等. 雷州半岛珊瑚礁生物地貌带与全新世多期相对高海平面. 海洋地质与第四纪地质, 2002,22(2):27～33Yu Kefu, Zhong Jinliang, Zhao Jianxin et al. Biological-geomorphological zones in a coral reef area at southwest Leizhou Peninsula unveil multiple sea level high-stands in the Holocene. Marine Geology & Quaternary Geology, 2002, 22(2): 27～33
[24] 陈旸,陈骏,季峻峰等. 陕西洛川黄土剖面的白度参数及其古气候意义. 地质论评,2002,48(1):38～43Chen Yang, Chen Jun, Ji Junfeng et al. Whiteness intensity in Luochuan Loess sequence (Shaanxi Province) and palaeoclimatic implications. Geological Review, 2002,48(1):38～43
[25] Meyers P A. Organic geochemical proxies of paleoceanographic, paleolimnologic and paleoclimatic processes. Organic Geochemistry, 1997, 27(5～6): 213～250
[26] Huon S, Grousset F E, Burdloff D et al. Sources of fine-sized organic matter in North Atlantic Heinrich layers: δ13C and δ15N tracers. Geochimica et Cosmochimica Acta, 2002, 66(2): 223～239
[27] Meyers P A. Preservation of elemental and isotopic source identification of sedimentary organic matter. Chemical Geology, 1994, 114(3～4): 289～302
[28] 王中刚,于学元,赵振华编著. 稀土元素地球化学. 北京:科学出版社,1989. 1～535Wang Zhonggang, Yu Xueyuan, Zhao Zhenhua. Geochemistry of Rare Earth Element. Beijing: Science Press, 1989. 1～535
[29] 赵一阳,鄢明才著. 中国浅海沉积物地球化学. 北京:科学出版社,1994. 130～150Zhao Yiyang, Yan Mingcai. Geochemistry of Shallow Sea Sediments of China. Beijing: Science Press, 1994. 130～150
[30] 何起祥,张明书,韩春瑞. 西沙群岛现代碳酸盐沉积的Ca、Mg、Sr地球化学. 海洋地质与第四纪地质,1985,5(4):31～39He Qixiang, Zhang Mingshu, Han Chunrui. Geochemistry of Ca, Sr and Mg in the contemporary carbonate sediments from Xisha Islands. Marine Geology & Quaternary Geology, 1985, 5(4): 31～39
[31] 周世光,业渝光,刘新波. 海南岛三亚三井珊瑚礁中稀土元素地球化学特征及其古气候意义. 海洋地质与第四纪地质, 1997,17(2):103～110Zhou Shiguang, Ye Yuguang, Liu Xinbo. Geochemical characteristics of REE in coral reef of Sanya-3-Well and its paleoclimatic significance. Marine Geology & Quaternary Geology, 1997, 17(2): 103～110
[32] Sholkovitz E, Shen G T. The incorporation of rare earth elements in modern coral. Geochimica et Cosmochimica Acta,1995, 59(13):2 749～2 756
[33] Byrne R H, Sholkovitz E R. The marine chemistry and geochemistry of the lanthanides. In: Gschneidner K A, Eyring L eds. The Handbook of the Physics and Chemistry of Rare Earths. Amsterdam: Elsevier, 1996. 497～593
-
计量
- 文章访问数: 2238
- PDF下载数: 1305
- 施引文献: 0
下载: