Method for predicting deep prospecting target area of alkali-omission type uranium mine

Abstract

The invention belongs to the technical field of uranium ore, and particularly relates to a deep prospecting target region prediction method for alkali-metrogenetic uranium ore, which comprises the following steps: step 1, constructing a metallogenic mode; 2, extracting regional metallogenic core elements, and constructing a geological prospecting model; step 3, positioning a uranium and thorium ore body in the sodium metasurface in a geophysical and geochemical exploration method combined mode; and 4, predicting and evaluating the deep mineralization potential. According to a multivariate information prediction evaluation model, the method comprises mineralization geological factor evaluation, ground geophysical and geochemical exploration anomaly evaluation and deep well energy spectrum uranium, thorium and potassium anomaly evaluation, so that the range of an exploration target area is narrowed, deep mineralization information is indicated, and the prospecting efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of uranium ore, and in particular relates to a method for predicting a deep ore prospecting target area of ​​an alkali metasomatization type uranium ore. Background technique [0002] Theoretical research on deep metallogenic prediction of uranium deposits is facing important challenges and development opportunities, especially for concealed uranium deposits. In the past, the ore deposit scale was predicted mainly based on research results such as the ore-forming depth of different types of uranium deposits, the vertical range of ore-forming, the main factors affecting the formation depth of ore deposits, the identification of ore-forming depth, the identification of ore-forming pressure, and the zoning of ore deposits. . In recent years, with the deepening of the scope of exploration and development of uranium deposits, significant progress has been made in the research on theories and technical methods re...

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Problems solved by technology

[0004] However, the existing deep metallogenic prediction and comprehensive evaluation methods of alkali metasomatized uranium deposits have obvious defects: ① the research content is limited to the systematic analysis of the "prospecting signs and metallogenic elements" of alkali metasomatized uranium deposits; ② reference for prediction and evaluation The model only relies on the geological prospecting model constructed solely; ③The basis for the prospecting target area delineated by this prediction and evaluation method is relatively single, and it cannot indicate the deep mineralization information, and it cannot improve the prospecting efficiency well in the process of mineral exploration

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