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Hydrothermal type uranium ore deep detection method

A deep exploration and uranium ore technology, which is applied in the field of ore deposit exploration, can solve the problems of reducing the prospecting effect of the radioactive measurement method, and achieve the effects of good prospecting effect, improved accuracy and efficiency, and obvious technical advantages.

Inactive Publication Date: 2018-07-13
BEIJING RES INST OF URANIUM GEOLOGY
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  • Abstract
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Problems solved by technology

However, as the depth of prospecting increases, the prospecting effect of radiometric methods has decreased significantly

Method used

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  • Hydrothermal type uranium ore deep detection method
  • Hydrothermal type uranium ore deep detection method
  • Hydrothermal type uranium ore deep detection method

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Embodiment 1

[0034] The hydrothermal type uranium ore deep detection method of the present embodiment comprises the following steps:

[0035] Step 1 Delineation of metallogenic prospect areas

[0036] Combining with the metallogenic law of hydrothermal uranium deposits, the prospect area of ​​mineralization is delineated. The metallogenic rule includes factors such as alteration development, fault structure development, volcanic mechanism and dike development.

[0037] Step 2 Deep exploration of uranium ore

[0038] Step 2.1 Use electromagnetic sounding method to detect deep uranium deposits

[0039] Electromagnetic sounding using tensor or scalar measurements via audio magnetotellurics.

[0040] In this embodiment, the specific technical parameters are as follows:

[0041] Measuring point distance: 20m;

[0042] Measurement method: tensor (Tensor), when the terrain condition is not good, if the instrument function permits, scalar measurement method (Scalar) can be used;

[0043] Wor...

Embodiment 2

[0070] This embodiment describes the present invention in detail in combination with the application of the present invention in the uranium prospecting application of the Julong'an deposit in Xiangshan Uranium Ore Field in Jiangxi Province and the significant prospecting effect produced.

[0071] Xiangshan uranium ore field is the largest volcanic rock-type uranium ore base in my country. Julong'an ore deposit is located in the west of the ore field, from the northeast to the parallel Zoujiashan-Shidong and Xiaopi-Wutou faults and to the northwest parallel to the Shutang- In the diamond-shaped fault block cut by the Jihekou and Xiaopi-Shidong faults, such as figure 1 shown. The lithology in the deposit is relatively simple, mainly composed of Qingbaikou basement metasedimentary rocks and volcanic rocks of the Lower Cretaceous Daguding Formation and Ehuling Formation. The mineralization of the Julong'an uranium deposit is mainly controlled by the F7 fault structure and the int...

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Abstract

The invention belongs to the technical field of ore deposit exploration, and particularly relates to a hydrothermal type uranium ore deep detection method. The method comprises the following steps: according to the ore-forming rule of a hydrothermal type uranium ore, determining the ore-forming perspective area; carrying out electromagnetic sounding through an audio earth electromagnetic instrument in a tensor or scalar measurement mode; carrying out total magnetic field intensity measurement and gradient measurement in the section continuous measurement working mode by means of a high-precision magnetometer; carrying out radon measurement in the air-exhaust measuring mode by means of a radon measuring instrument; according to above measurement results, obtaining the ore-forming environment information and the direct ore-forming information in combination with known geological data; and predicting the beneficial part of the uranium ore-forming process. According to the invention, the geological structure information of the uranium ore forming environment can be obtained, and the indirect ore exploration can be realized. Meanwhile, the direct information of the uranium ore forming can be obtained, and the direct ore exploration can be achieved. Compared with a traditional radioactivity measurement and ore exploration method, the accuracy and the efficiency of ore exploration areremarkably improved. Especially, the method has a good ore exploration effect for deep ore exploration.

Description

technical field [0001] The invention belongs to the technical field of mineral deposit exploration, and in particular relates to a method for deep detection of hydrothermal uranium deposits. Background technique [0002] Hydrothermal uranium deposits in my country mainly occur in fault structures, fissure zones, fracture zones, and contact interfaces of different magmatic rock intrusions, interfaces of different volcanic rocks, basins or basement unconformities, structural rock mass interfaces, volcanic structures, and unconformities. in the face. The ore bodies of hydrothermal uranium deposits are mainly vein-shaped, group-vein-shaped, lenticular-shaped, plate-shaped and irregular complex shapes. Most of the individual ore bodies constitute a single deposit, but most of them appear in small-scale ore body groups. [0003] Hydrothermal uranium deposits can be divided into two types according to the surrounding rocks: volcanic rock type and granite type. Hydrothermal uranium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 李子颖程纪星林锦荣聂江涛
Owner BEIJING RES INST OF URANIUM GEOLOGY
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