A Comprehensive Prediction Method for the Prospective Area of ​​Granite Type Uranium Ore Field

Abstract

The invention belongs to the field of mineral exploration, and in particular relates to a comprehensive prediction method for a prospective area of a granite type uranium mine field, which aims at improving the space positioning accuracy and reliability of a metallogenic prediction area by virtue of remote sensing, geophysical, geological and geochemical methods. The method comprises the following steps: identifying and verifying structures, namely interpreting a remote sensing structure, and geophysically verifying and geologically analyzing a framework structure; screening metallogenic areas, namely screening the framework structure conditions, magmatic activity conditions, uranium source layer conditions and faulted red basin conditions of metallogenic parts; and predicting the prospective area of the mine field, namely grading key area structure conditions, evaluating remote sensing image texture characteristics, aero-radioactive characteristics and geochemical characteristics, and delimitating and grading the prospective area of the mine field. The method can be applied to evaluation and prediction of the metallogenic prospective area of the hydrothermal uranium mine field, especially the granite type uranium mine field.

Description

technical field [0001] The invention belongs to the field of mineral exploration, and in particular relates to a comprehensive prediction method for prospect areas of granite-type uranium ore fields, in particular to a comprehensive prediction method for prospect areas of ore formation in granite uranium ore fields. Background technique [0002] Regional metallogenic prospect prediction of granite-type uranium deposits is a very complex and difficult project. The current prediction method is mainly to use the method of geological analysis to predict the prospect of mineralization by studying and identifying the regional ore-geological conditions: such as regional geological structure, magmatic activity, uranium source, fault-depressed red basin and other favorable areas. However, how to reasonably arrange the order of investigation, adopt reasonable technical means and evaluate marks is an unresolved problem. The current forecasting methods have two deficiencies: one is tha...

AI Technical Summary

Problems solved by technology

The current prediction method is mainly to use the method of geological analysis to predict the prospect of mineralization by studying and identifying the regional ore-geological conditions: such as regional geological structure, magmatic activity, uranium source, fault-depressed red basin and other favorable areas. However, how to reasonably arrange the order of investigation, adopt reasonable technical means and evaluate marks is an unresolved problem

The current forecasting methods have two deficiencies: one is that the research and survey mainly adopt qualitative analysis methods, the conclusions and signs obtained are mainly qualitative text descriptions, and the forecasted prospect areas are relatively general; the other is that the forecasting technical means mainly rely on geological analysis , did not form an organic unity of geology, remote sensing, geophysics and geochemistry under the guidance of the theory

The current prediction is mainly based on the conclusions of regional geological research and survey, and geophysical, geochemical and remote sensing techniques are mainly used to verify the understanding of geological research and survey, without giving full play to the advantages of geophysical, geochemical and remote sensing technical means To study the performance characteristics of the ore-forming conditions of granite-type uranium deposits and establish corresponding evaluation marks, so as to directly participate in the metallogenic prediction

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