The Nonlinear Methods Concerning Metallogenic Element Association for Seeking Geochemical Anomaly in Donggapu Mining Area , Tibet
详细信息
- 责任者：Liu Bingli (College of Geophysics ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Guo Ke
- 刊名：Earth Science Frontiers
- 出版年：2012
- 卷期：19(2)
- 关键词：非线性 ; non-linear ; 成矿预测 ; metallogenic prediction ; 矿化作用 ; mineralization ; 西藏 ; Tibet
- 页码：p.256-265
- 图表：11 illus., 2 tables, 22 refs.
- 分类号：1001
- 出版序号：20130240
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
Complicated geological processes and controlling factors always make the distribution of geochemical elements having nonlinear characteristics. Traditional linear model methods are limited due to the character of nonlinear element association. In this paper, the authors adopted aiNet to preprocess geochemical data in order to study the geochemical metallogenic element association. Fractal content-area method was used to determine the anomaly threshold of elements. Fractal content-gradient method was used to determine the zone of element concentration. Thus a series of nonlinear metallogenic element association method system to seek out geochemical anomaly was formed. The authors applied this nonlinear method for anomaly seeking of geochemical metallogenic element association to process 1∶10 000 soil geochemical survey data from Donggapu mining area of Tibet and achieved results.
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