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| 回归分析和判别分析及模糊聚类分析在陕北黄土高原第四纪岩性划分中的应用 | |
| 引用本文： | 陈曜岑,赵楠,石建胜.回归分析和判别分析及模糊聚类分析在陕北黄土高原第四纪岩性划分中的应用[J].物探与化探,1989,13(3):216-224. |
| 作者姓名： | 陈曜岑 赵楠 石建胜 |
| 作者单位： | 1. 中国地质大学 2. 陕西省地矿局第一水文队 |
| 摘 要： | 黄土、古土壤、亚砂土等是陕北黄土高原第四纪的主要岩性,由于其导电性及电化学活动性差异不大,故利用视电阻率测井曲线和自然电位测井曲线很难将以上几种岩性准确区分。本文将回归分析、判别分析及模糊聚类分析等数学方法应用到陕北黄土高原第四纪岩性的划分上,特别是模糊聚类分析在区分黄土、古土壤、亚砂土上取得较好的地质效果。 |
| 关 键 词： | 黄土高原 第四纪 岩性划分 分析法 |
THE APPLICATION OF REGRESSION ANALYSIS,DISCRIMINATORY ANALYSIS AND FUSSY CLUSTERANALYSIS TO THE LITHOLOGICAL DIVISION OFQUATERNARY SEDIMENTS IN LOESSIAL PLATEAUOF NORTHERN SHAANXI |
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| Institution: | 1. China University of Geosciences; 2. No.1 Hydrogeology and Engineering Geology Party, Bureau of Geology and Mineral Resources of Shaanxi Province |
| Abstract: | Loess, paleosol and sandy loam make up the major lithologic characters of Quaternary sediments in loessial plateau of northern Shaanxi. As they are not obviously different from each other in conductivity and electrochemical activity, it is quite difficult to distinguish them accurately by means of ap parent resistivity logging curves and spontaneous logging curves. This paper applies such mathematical methods as regression analysis, discriminatory ana lysis and fussy cluster analysis to the lithological division of Quaternary sedi ments in loessial plateau of Northern Shaanxi. The fussy cluster analysis, in particular, shows quite good geological effects in distinguishing loess, paleosol and sandy loam. |
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