Integrated geophysical and geochemical prospecting method for delineating deep three-dimensional uranium metallogenic targets of sandstone-type uranium deposits
A uranium metallogenic and sandstone type technology is applied in the field of comprehensive geophysical and geochemical prospecting to delineate the deep three-dimensional uranium metallogenic target area of sandstone type uranium deposits, and can solve the problems of difficult to delineate the deep three-dimensional uranium metallogenic target area of sandstone type uranium deposits. Guarantee technical feasibility, save manpower, and improve the effect of economy
Active Publication Date: 2022-04-19
BEIJING RES INST OF URANIUM GEOLOGY
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[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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[0122] A comprehensive geophysical and geochemical prospecting method for delineating deep three-dimensional uranium ore-forming target areas of sandstone-type uranium deposits according to the present invention will be described in detail below in conjunction with the accompanying drawings and specific examples.
[0123] Such as figure 1 As shown, a comprehensive geophysical and geochemical prospecting method for delineating the deep three-dimensional uranium ore-forming target area of a sandstone-type uranium deposit of the present invention comprises the following steps:
[0124] Step 1. Delineate the abnormal range of uranium content in fine-grained soil AS(U FS )
[0125] Step 1.1. Fine-grained soil geochemical data collection
[0126] In the S(U) area of uranium mineralization exploration, the fine-grained soil geochemical prospecting work with a measuring network of 1 km × 1 km was carried out. Shallow surface soil samples were collected, dried and sieved to -400 me...
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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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IPC IPC(8): G01V11/00G01N33/24G01N1/28
CPCG01V11/00G01N33/24G01N1/286
Inventor 赵丹蔡煜琦吴国东刘武生易超乔宝平张字龙
Owner BEIJING RES INST OF URANIUM GEOLOGY
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