Method for delineating sandstone-type uranium mineralization target area based on multi-space scales

A sandstone-type, multi-space technology, applied in the directions of sound wave re-radiation, electric/magnetic exploration, measuring devices, etc., can solve the problems of weak geophysical and chemical prospecting anomaly information and the inability to accurately delineate ore-forming areas, and achieve good results in ore-forming predictions , Save the cost of prospecting work and reduce the workload

Active Publication Date: 2019-04-05
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

[0004] The purpose of the present invention is to propose a method for delineating the ore-forming target area of ​​sandstone-type uranium deposits based on multiple spatial scales, which solves the technical problem that the ore-forming area cannot be accurately delineated due to weak geophysical and geochemical information on the surface

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  • Method for delineating sandstone-type uranium mineralization target area based on multi-space scales

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with specific examples in the Ili Basin of Xinjiang.

[0023] A method for delineating ore-forming targets of sandstone-type uranium deposits based on multiple spatial scales, comprising the following steps:

[0024] Step 1: Preliminarily delineate the distribution range of the oxidation-reduction transition zone;

[0025] Step 2: Delineate the position of the front line of the oxidation band in the oxidation-reduction transition zone;

[0026] Step 3: Delineate the location of the prospecting target area.

[0027] Said step one, preliminarily delineating the distribution range of the oxidation-reduction transition zone;

[0028] The sandstone-type uranium deposits are produced in the oxidation-reduction transition zone, and the structural characteristics are the variation parts where the local structure changes from steep to gentle. The reflection of these parts on the aeromagnetic contour map is th...

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Abstract

The invention belongs to the technical field of geological exploration, and particularly relates to a method for delineating a sandstone-type uranium mineralization target area based on multi-space scales. The method comprises the steps that step one, the distribution range of an oxidation-reduction transition zone is delineated preliminarily; step two, the position of the front line of an oxidation zone is delineated in the oxidation-reduction transition zone; and step three, the position of the prospecting target area is delineated. According to the mineralization characteristics of a sandstone-type uranium ore, the corresponding method is selected from the space scales to gradually narrow the prospecting range, detailed field research is carried out in the uranium area in Yili basin ofXinjiang, the prediction effect on mineralization of the sandstone-type uranium ore is good, and reference significances is further brought for prospecting work in other areas.

Description

technical field [0001] The invention belongs to the technical field of geological exploration, and in particular relates to a method for delineating a sandstone-type uranium ore-forming target area based on multiple spatial scales. Background technique [0002] Sandstone-type uranium deposits are produced in sedimentary basins. When uranium-containing oxygen-containing water migrates from the erosion source area (i.e., the oxidation zone) at the edge of the basin and encounters a reducing environment, the hexavalent uranium in the water is reduced to tetravalent uranium, precipitates and eventually forms a mineral. The precipitated area is the oxidation-reduction transition zone, so determining the location of the oxidation-reduction transition zone is very important for the exploration of sandstone-type uranium deposits. In the oxidation-reduction transition zone, not all places are ore-forming, and a variety of indicator features are needed to further screen the ore-formin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/08G01V3/38
CPCG01V3/08G01V3/38
Inventor 赵宁博付锦秦凯张东辉张玉燕
Owner BEIJING RES INST OF URANIUM GEOLOGY
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