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应用统计分析方法对塔里木盆地西南缘达木斯剖面下石炭统５２块岩样的微量元素分析数据进行了定量研究，探讨了微量元素的岩石地球化学特征、分布规律及沉积环境意义。根据Ｒ型因子分析的结果，研究了下石炭统岩石微量元素的共生组合关系，找到了微量元素中的典型变量，进而对主因子的地质成因进行了解释。运用Ｑ型因子分析划分出了不同的岩石类型，为地层和沉积相的划分提供了解释依据。
The statistical analysis method was used to quantitatively study the trace elemental analysis data of 52 lithofacies of the Lower Carboniferous in the southwestern margin of the Tarim Basin. The geochemical characteristics and distribution of trace elements and the significance of sedimentary environment were discussed. According to the result of R type factor analysis, the symbiotic relationship between the trace elements in the Lower Carboniferous rocks was studied, and the typical variables in trace elements were found, and the geological origin of the main factor was explained. By using Q-factor analysis, different types of rocks are divided and provide an explanation basis for the division of sedimentary facies and sedimentary facies.