戴维斯站区与长城站区企鹅粪土层生物标型元素的确定与比较  

THE IDENTIFICATION AND COMPARISON OF THE BIO-ELEMENTS OF THE ORNITHOGENIC SEDIMENT SAMPLE FROM DAVIS STATION AND GREAT WALL STATION,ANTARCTICA

作　　者：黄涛[1] 孙立广[1] 吴自军[1] 王玉宏[1] 

机构地区：[1]中国科学技术大学极地环境研究室,合肥230026

出　　处：《极地研究》2007年第4期247-254,共8页Chinese Journal of Polar Research

基　　金：国家自然科学基金面上项目(40476001);国家自然科学基金重点项目(40730107);澳大利亚南极局现场考察项目(AADscienceproject2873)资助

摘　　要：在中国第22次南极考察(2005/2006)期间,采集了东南极戴维斯站区加德纳岛(GardnerIsland)上一根含企鹅粪的沉积泥芯。分析测试了该沉积物、新鲜企鹅粪和当地基岩中部分化学元素的含量。对元素进行聚类分析并结合对比新鲜企鹅粪、基岩中的部分元素含量特征后得出,该粪土沉积的生物标型元素组合包括P、Se、F、S、As、Cu和Sr等7种元素。这与西南极阿德雷岛企鹅粪土层的生物标型元素组合是基本一致的。在此基础上,对东、西南极企鹅粪土层的生物标型元素进行了优选,得出东南极优选生物标型元素为P和Se,西南极则为F、P和S。这为探讨东南极企鹅数量变化及东、西南极企鹅数量变化的对比研究打下了基础。During CHINARE-22 （from December, 2005 to March, 2006）, a lake sediment core named DG4, which contains penguin droppings, was collected from GD2 lake on the Gardner Island near Davis Station, East Antarctica. In this paper, we determined the concentrations of characteristic elements in the ornithogenic sediment, local bedrock and fresh penguin droppings. P, Se, F, S, As, Sr and Cu in DG4 were identified as bio-element assemblage by Rclustering analysis and compared with those in the local bedrock and fresh droppings. The resuits are similar to Y2 in Ardley Island, West Antarctica. On this basis, P and Se were identified as the optimum bio-elements in DC,4, and F, P and S were identified in Y2, respectively. This provides the foundation for studying the past penguin populations in East Antarctica and the comparison of penguin populations between East and West Antarctica.

关 键 词：戴维斯站 东南极 西福尔丘陵 企鹅粪土 生物标型元素 

分 类 号：P593[天文地球—地球化学]