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通过对南极乔治王岛柯林斯冰帽小冰穹冰心１００个样品的化学分析结果进行Ｒ型因子分析，将主要环境信息归结到四个因子上，解释总变量方差的９９．１７％．Ｆ１因子特征值为３．７７５，解释变量方差的４１．９５％，为Ｋ＋、Ｍｇ２＋、Ｃａ２＋、ＳＯ４２－组合，主要代表了陆源杂质的输入；Ｆ３因子特征值为３．３３８，解释变量方差的３７．０９％，为Ｎａ＋、Ｃｌ－、Ｂｒ－组合，代表了海源杂质的输入；Ｆ２因子特征值为１．０３０，解释变量方差的１１．４４％，代表ＮＨ４＋离子的输入；Ｆ４因子特征值为０．７８２，解释变量方差的８．６９％，代表ＮＯ３－离子的输入。通过考察代表不同环境的各因子的因子得分值随冰心深度的变化趋势，研究了可溶杂质输入随时间的变化关系。
Based on the R-factor analysis of chemical analysis of 100 samples of ice core of Collins Ice Cap in Antarctica, the main environmental information was reduced to four factors, accounting for 99.17% of the total variance. The F1 factor eigenvalue is 3.775, accounting for 41.95% of the variance of the variables, which is the combination of K +, Mg2 +, Ca2 + and SO42-, which mainly represents the input of terrigenous impurities. The eigenvalue of F3 is 3.338, which explains the variance 37.09%, which is the combination of Na +, Cl- and Br-, representing the input of sea-source impurities. The F2 factor eigenvalue is 1.030, accounting for 11.44% of the variance of the variable, representing the input of NH4 + ions. The F4 factor eigenvalue Is 0.782, explaining the variance of the variable of 8.69%, representing the input of NO3- ions. By investigating the tendency of factor score values of various factors representing different environments with the ice core depth, the change of soluble impurity input with time was studied.