因子分析在地球化学分区中的应用及指示意义——以山东省莒县—五莲地区1:5万水系沉积物测量数据为例

卢文东, 孙斌, 李光杰, 魏伟, 夏小兴, 潘丙磊, 沙晴, 吕小红, 李元春, 乔娜

Application of factor analysis in geochemical zoning and its implications: A case study of 1:50,000 stream sediment survey in the Juxian-Wulian area, Shandong Province

LU Wen-Dong, SUN Bin, LI Guang-Jie, WEI Wei, XIA Xiao-Xing, PAN Bing-Lei, SHA Qing, LYU Xiao-Hong, LI Yuan-Chun, QIAO Na

表2 研究区因子分析特征值和累计方差贡献率

Table 2 Factor analysis eigenvalues and cumulative variance contribution rate of the study area

因子 旋转前 旋转后 总特 征值 方差贡献 率/% 累积贡献 率/% 总特 征值 方差贡献 率/% 累积贡献 率/% F1 4.322 24.010 24.010 3.019 16.773 16.773 F2 3.041 16.896 40.906 2.593 14.408 31.181 F3 1.527 8.481 49.386 1.902 10.565 41.746 F4 1.200 6.667 56.053 1.694 9.411 51.157 F5 1.044 5.800 61.853 1.503 8.347 59.504 F6 0.966 5.369 67.222 1.092 6.064 65.568 F7 0.897 4.982 72.204 1.008 5.601 71.169 F8 0.816 4.531 76.735 1.002 5.566 76.735