| 因子分析在地球化学数据处理中的应用 |
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| 引用本文： | 耿国帅.因子分析在地球化学数据处理中的应用[J].地质与勘探,2014,50(Z1):1365-1373. |
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| 作者姓名： | 耿国帅 |
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| 作者单位： | 中国地质大学地球科学与资源学院，北京； 中国武装警察部队黄金地质研究所物化探室，河北廊坊 |
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| 摘 要： | 因子分析是一种多元统计分析方法，以往地质研究中常用其解决复杂的地质成因及矿化叠加问题。本文利用R型因子分析对岷县寨上-马坞调查区的1:20万水系沉积物样品数据进行处理，计算因子得分，圈定因子得分异常图，并与区内的各种地质作用相联系，取得了一定的效果；利用R-Q型因子分析对寨上及附近的原生晕样品进行分析，通过对矿体及构造带样品的分析，可以划分矿化类型；通过对地层样品的分析，可以划分地层并得出各地层的特征组合元素。因此利用因子分析可以为地球化学数据解释提供重要信息。
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| 关 键 词： | 因子分析 R-Q型因子分析 地球化学勘查 数据解释 |
| 收稿时间： | 2014/3/28 0:00:00 |
| 修稿时间： | 9/6/2014 12:00:00 AM |
The Application of factor analysis to geochemical data processing |
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| Geng Guo-Shuai.The Application of factor analysis to geochemical data processing[J].Geology and Prospecting,2014,50(Z1):1365-1373. |
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| Authors: | Geng Guo-Shuai |
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| Institution: | School of Earth Sciences and Resources, Chiana University of geosciences, Beijing; Gold Geological Institute of CAPF, Langfang, Heibei |
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| Abstract: | Factor analysis is a multivariate statistical analysis method to solve problems of complex geologic genesis and superimposed mineralization. Using R-factor analysis, this work processes the data of 1:200000 stream sediment samples from the Zhaishang - Mawu survey area in Mingxian, Gansu Province. Then it calculates the factor scores, and delineates anomalies in combination with geological features of the survey area. Some results have been achieved. Furthermore, this work uses R-Q mode factor analysis to deal with the primary halo samples from Zhaishang and its vicinity. Based on such analyses on ore bodies and samples from structural zones, the mineralization is classified. Similar analysis on stratum samples allows us to divide formations and determine characteristic composite elements. It demonstrates that the factor analysis method can provide some significant information for geochemical explanation. |
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| Keywords: | factor analysis R-Q mode factor analysis geochemical exploration data interpretation |
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