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本文研究了南极布兰斯菲尔德海峡表层沉积物中Ｃ５－Ｃ１５烃类化合物的分布特征，其中包括正构烷烃、异构烷烃、环烷烃和芳烃化合物。所有试样中均含有大量的芳烃物苯、甲苯、二甲苯和三甲苯，其中甲苯占绝对优势，为总烃量的７５－８１％。对一些有机化合物进行了多元统计分析，如Ｑ和Ｒ模式系统聚类分析和主因子分析。Ｑ模式的最长距离法反映了９０１航次和首次南大洋样的差异。９０１航次样经旋转后三个因子的等值线趋向上，各站位间有着明显的差别，其中Ｇ－２７站均趋向极端值
In this paper, the distribution characteristics of C5-C15 hydrocarbons in the surface sediments of the Bransfield Strait in Antarctica are studied, including n-alkanes, isoparaffins, naphthenes and aromatics. All samples contain a large number of aromatic hydrocarbons benzene, toluene, xylene and trimethylbenzene, toluene which is the absolute advantage of 75-81% of the total amount of hydrocarbons. Multivariate statistical analysis of some organic compounds, such as Q and R model system cluster analysis and the main factor analysis. The Q-mode longest distance method reflects the difference between the 901 voyage and the first Southern Ocean sample. 901 voyage sample after rotation of the three factors tend to contour lines, there is a clear difference between the stations, of which G-27 stations tend to extreme values