Comprehensive geophysical and geochemical exploration method for delineating sandstone type uranium ore deep three-dimensional uranium mineralization target area

Abstract

The invention belongs to the technical field of uranium ore exploration, and particularly relates to a comprehensive geophysical and chemical exploration method for delineating a sandstone type uranium ore deep three-dimensional uranium mineralization target area. The method comprises the following steps: step 1, delineating an abnormal range of uranium content in fine-grained soil; step 2, carrying out aviation transient electromagnetic measurement, and delineating a favorable sand body range of uranium mineralization; 3, delineating a uranium mineralization key exploration area; 4, carryingout soil radon gas measurement, and delineating the abnormal range of the soil radon gas concentration; 5, carrying out controllable source audio magnetotelluric sounding, and delineating a deep uranium mineralization favorable sand body range; step 6, delineating a deep uranium mineralization favorable section; step 7, delineating a geoelectrochemical uranium content abnormal range; step 8, delineating a deep three-dimensional uranium mineralization favorable sand body range; and step 9, delineating a deep three-dimensional uranium mineralization target area. The method can solve the problemthat in the prior art, it is difficult to accurately delineate the sandstone type uranium ore deep three-dimensional uranium mineralization target area.

Description

technical field [0001] The invention belongs to the technical field of uranium ore exploration, and in particular relates to a comprehensive geophysical and chemical exploration method for delineating a deep three-dimensional uranium ore-forming target area of ​​a sandstone-type uranium deposit. Background technique [0002] At present, in the field of uranium ore exploration, through radioactive measurement methods, shallower buried sandstone-type uranium deposits have been discovered, and the focus of sandstone-type uranium exploration has shifted to deep exploration, and the mineralization information of deep uranium ore bodies on the surface It is relatively weak, and it is necessary to obtain effective deep uranium mineralization information through suitable geophysical and geochemical prospecting methods and corresponding data processing techniques. [0003] In order to delineate the deep uranium ore-forming target area of ​​sandstone-type uranium deposits and lock the...

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Problems solved by technology

[0005] The invention provides a comprehensive physical and chemical prospecting method for delineating the deep three-dimensional uranium ore-forming target area of ​​a sandstone-type uranium deposit, which can solve the problem that it is difficult to accurately delineate the deep three-dimensional uranium ore-forming target area of ​​a sandstone-type uranium deposit in the prior art

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