Metallogenic prediction method based on hierarchical analysis method
An analytic hierarchy process and metallogenic technology, applied in optical exploration, instruments, character and pattern recognition, etc., can solve problems such as errors in prediction results, achieve the effects of small errors, comprehensive factors affecting mineralization, and avoid vague judgments
Inactive Publication Date: 2018-09-25
CHENGDU UNIVERSITY OF TECHNOLOGY
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Therefore, the two existing metallogenic prediction models both lead to large errors in the prediction results.
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[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. The following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
[0035] Considering that in the existing metallogenic prediction models, the factors affecting metallization consider...
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The invention provides a metallogenic prediction method based on a hierarchical analysis method. The method comprises steps of based on remote sensing image data, carrying out geologic feature interpretation; based on the remote sensing image data, carrying out alteration abnormal area delineation; based on exiting geologic data, through geochemistry stream sediment measurement, carrying out geochemistry abnormal area delineation in alteration zones; using a geologic feature interpretation result, an alteration abnormal area delineation result and a geochemistry abnormal area delineation result as metallogenic impact factors, and through the hierarchical analysis method, calculating the weight of each metallogenic impact factor; overlapping a geologic feature interpretation result graph, an alteration abnormal area delineation result graph and a geochemistry abnormal area delineation result graph, according to the weight of each metallogenic impact factor; and calculating a comprehensive weighting value of each pixel point in the overlapped graph, and according to the comprehensive weighting value, delineating a metallogenic prediction region. According to the invention, more comprehensive metallogenic impact factors are considered; the calculating of the weight of each metallogenic impact factor is quite precise; and errors of a metallogenic prediction result are quite small.
Description
technical field [0001] The invention relates to the field of mineral resource exploration, in particular to a metallogenic prediction method based on the analytic hierarchy process. Background technique [0002] With the rapid development of our country's economy, the consumption of mineral resources is increasing day by day, and the contradiction between economic development and the shortage of mineral resources that have been exploited is becoming more and more obvious. At present, the low-altitude and near-surface mineral resources are decreasing day by day, and the prospecting is gradually developing from shallow to deep, and the difficulty of prospecting is increasing, which brings great challenges to the prospecting work. [0003] At present, the reference factors used for metallogenic prediction mainly include remote sensing geological interpretation, remote sensing alteration anomaly extraction and geochemical anomaly extraction. Among the existing metallogenic pred...
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IPC IPC(8): G06K9/00G01V8/02
CPCG01V8/02G06V20/13
Inventor 李志军何珊欧俊郭奇奇尤孟赵润东何子轩韩泽伟
Owner CHENGDU UNIVERSITY OF TECHNOLOGY