Favorable metallogenic space positioning method and system for sandstone-type uranium mine in anticline development region
A technology for spatial positioning and development area, which is applied in the field of uranium ore geological exploration and can solve the problems of difficulty in obtaining exploration work, lack of metallogenic spatial positioning methods, and difficulty in determining the spatial location of metallogenic sand bodies.
Pending Publication Date: 2021-07-06
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology
However, the distribution of main ore-controlling factors has not been clarified at present, especially the spatial location of favorable ore-forming sand bodies near the anticline uplift area, and the lack of a systematic ore-forming spatial positioning method makes it difficult to achieve major breakthroughs in the exploration of this type of uranium deposits
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Embodiment 1
[0116] Taking the implementation in the Yuka area of the Qaidam Basin as an example, a method for locating the favorable ore-forming space of sandstone-type uranium deposits in the anticline development area provided by the present invention includes the following steps in sequence:
[0117] Step 1: Use high-precision magnetic surveying to quickly determine the formation fluctuations in the anticline development area, and divide the anticline uplift area and depression coverage area in the study area.
[0118] The step 1 includes the following steps:
[0119] Step 1.1 Determine the high-precision magnetic survey work network according to the geological characteristics, the line distance is 500 meters, the point distance is 50 meters, the direction is perpendicular to the geological body trend or the stratum boundary, and the measurement area includes different exposed strata as much as possible.
[0120] The high-precision magnetometer used in step 1.2 has stable performance...
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The invention relates to a favorable metallogenic space positioning method and system for a sandstone-type uranium mine in an anticline development region. The method comprises steps of determining the spatial distribution form of favorable metallogenic sand, the position of an oxidation-reduction transition zone of a depression coverage area and a favorable metallogenic area above an anticline upheaval area; determining a favorable metallogenic space of the depression coverage area according to the position of the redox transition zone of the depression coverage area and the spatial distribution form of the favorable metallogenic sand body; according to a favorable metallogenic area above the anticline upheaval area and the spatial distribution form of favorable metallogenic sand bodies, determining the favorable metallogenic space of the anticline upheaval area; and according to the favorable mineralization space of the depression coverage area and the favorable mineralization space of the anticline upheaval area, determining the favorable mineralization space of uranium mineralization in the anticline development area. According to the method, the spatial position of the favorable ore sand body near the anticline upheaval area can be accurately positioned.
Description
technical field [0001] The invention relates to the field of geological prospecting of uranium deposits, in particular to a method and system for locating favorable ore-forming space of sandstone-type uranium deposits in an anticline development area. Background technique [0002] With the rapid development of my country's nuclear power industry, the demand for uranium resources is increasing. Sandstone-type uranium deposits are one of the main types of ore prospecting in my country in recent years, and their formation process is affected by many aspects such as structure, stratum, hydrological environment, and alteration environment. Among them, the anticline structure plays a vital role in the formation, enrichment, preservation and even destruction of sandstone-type uranium deposits. With the gradual advancement of exploration of sandstone-type uranium deposits in China, many sandstone-type uranium deposits have been discovered in the fold-developed areas of a large numb...
Claims
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IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 陈聪赵兴齐汪硕赵丹周俊杰陈涛
Owner BEIJING RES INST OF URANIUM GEOLOGY