【摘要】 沉积地球科学中若干理论概念经过百余年的争论与探索，已经成为建立在地质现象有序性的基础上，以渐进演化和突变事件为指导思想，以活动论作为世界观，以模拟对比作为主要方法手段，以三维空间作为探索方向的成熟的地球科学分支学科。仅以崇敬的心情献上此文，庆祝业治铮教授八十年诞。更多还原

【Abstract】 or the chemical analysis results of ice core from small dome,Collins ice cap,King George Island,Antarctica,R factor analysis is performed.The main environmental information is summarized in four factors,representing 99 17% of the total variance.The first factor consists of K +,Mg 2+ ,Ca 2+ and SO 4 2- ,and the characteristic value is 3 775,representing 41 95% of the total variance and indicating the input of impurities from land.The third factor is composed of Na +,Cl - and Br -,and the characteristic value is 3 338,representing 37 09% of the total variance,indicating the input of impurities from sea.The second factor only contains NH 4 +,the characteristic value is 1 030,representing 11 44% of the total variance.NO 3 - forms the fourth factor,the characteristic value is 0 782,representing 8 69% of the total variance.We study the change of input impurities with years through examining the change of different factor score with the depth of ice core.更多还原