Integrated geophysical and geochemical prospecting method for delineating deep three-dimensional uranium metallogenic targets of sandstone-type uranium deposits

Abstract

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. The invention comprises the following steps: step 1, delineating the abnormal range of uranium content in fine-grained soil; step 2, carrying out airborne transient electromagnetic measurement work, delineating the range of favorable sand bodies for uranium ore-forming; step 3, delineating key exploration areas for uranium ore-forming; Step 4. Carry out soil radon gas measurement and delineate the abnormal range of soil radon gas concentration; Step 5. Conduct controllable source audio frequency magnetotelluric sounding work to delineate the favorable sand body range for deep uranium mineralization; Step 6. Delineate deep uranium mineralization Favorable locations; step 7, delineating the abnormal range of geoelectrochemical uranium content; step 8, delineating the range of favorable sand bodies for deep three-dimensional uranium ore-forming; step 9, delineating the deep three-dimensional uranium ore-forming target area. The invention can solve the problem in the prior art that it is difficult to accurately delineate the deep three-dimensional uranium ore-forming target area of ​​the sandstone-type uranium deposit.

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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