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Method for delineating favorable uranium metallogenic area based on radon-active uranium comprehensive index

A comprehensive index and uranium mineralization technology, applied in the field of uranium ore exploration, can solve the problems of high economic cost, low exploration efficiency, poor deep uranium ore exploration effect, etc., to reduce the cost of uranium ore exploration, improve the efficiency of uranium ore exploration, The effect of improving the efficiency of uranium ore exploration

Pending Publication Date: 2021-09-17
BEIJING RES INST OF URANIUM GEOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the deep buried type of uranium ore bodies, the information related to uranium mineralization produced on the surface is relatively weak, and it is difficult to accurately capture the occurrence location of uranium ore bodies by conventional radioactive or geochemical exploration methods. information, the delineated favorable area for uranium mineralization is low, which makes the effect of deep uranium exploration poor, the exploration efficiency is low, and the economic cost is high
In the case of limited investment in national uranium mine exploration funds, the amount of uranium resources identified through exploration work cannot meet the needs of the country

Method used

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  • Method for delineating favorable uranium metallogenic area based on radon-active uranium comprehensive index
  • Method for delineating favorable uranium metallogenic area based on radon-active uranium comprehensive index
  • Method for delineating favorable uranium metallogenic area based on radon-active uranium comprehensive index

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Embodiment 1

[0047] like figure 1 As shown, a kind of method that the present invention provides is based on radon-active uranium comprehensive index to delineate the method for uranium mineralization favorable area, comprises the following steps:

[0048] Step 1. Carry out soil radon gas measurement and soil metal activity dynamic measurement at the same scale and at the same point in the uranium exploration area; Step 2. Obtain the soil radon concentration value and active uranium content value at the measurement point; Step 3. According to the soil Radon concentration value and active uranium content value calculate radon-active uranium comprehensive exploration uranium ore-forming favorable index value; Step 4, carry out interpolation and low-pass filtering to uranium ore-forming favorable index; Step 5, according to the result after interpolation and filtering and The classification principle of favorable uranium mineralization areas is used to delineate different levels of favorable ...

Embodiment 2

[0050] The method for delineating a favorable area for uranium mineralization based on the radon-active uranium comprehensive index of the present invention comprises the following steps: first, carry out soil radon gas measurement and soil metal activity at the same scale and at the same point in the uranium prospecting area A (U). Dynamic measurement work, respectively obtain the original soil radon concentration value C at the measurement point Rn (O) and original soil metal activity dynamic uranium content value C U (O); then, for C Rn (O), C U(O) carry out normalization processing, obtain the normalized soil radon concentration value C respectively Rn (N) and the normalized soil metal activity dynamic uranium content value C U (N); then, calculate the comprehensive prospecting parameter P(O); then, carry out normalization processing to P(O), obtain the normalized comprehensive prospecting parameter P(N); then, the uranium prospecting area A( The values ​​of all measur...

Embodiment 3

[0052] The method for delineating favorable areas for uranium mineralization based on radon-active uranium comprehensive index of the present invention comprises the following steps:

[0053] Step 1. Determine the uranium exploration area A(U)

[0054] Step 2. Obtain the original soil radon concentration value C Rn (O)

[0055] In the uranium prospecting area A (U), the soil radon measurement work with a measuring network of 20m×20m was carried out, and the activated carbon adsorption radon measurement method was used to dig three holes in a circle with a radius of 2 meters centered on the measuring point. For a pit with a depth of 50 cm, the activated carbon sampler is buried in the pit, and the burying time is uniformly 7 days. The average radon concentration measured by the activated carbon sampler in the three pits is used as the final radon concentration value C of the measuring point. Rn (O).

[0056] Step 3. Obtain the original soil metal activity dynamic uranium con...

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Abstract

The invention belongs to the technical field of uranium exploration, and particularly relates to a method for delineating a favorable uranium metallogenic area based on a radon-active uranium comprehensive index. The method comprises the following steps: step 1, carrying out soil radon gas measurement and soil metal active state measurement work at the same scale and the same point location in a uranium exploration area; step 2, acquiring a soil radon concentration value and an active uranium content value at the measuring point; step 3, according to the soil radon concentration value and the active uranium content value, calculating a uranium mineralization favorable index value for comprehensive exploration of radon-active uranium; step 4, performing interpolation and low-pass filtering on the uranium mineralization favorable index; and step 5, delineating uranium metallogenic favorable areas of different grades according to results after interpolation and filtering and a uranium metallogenic favorable area grading principle. The invention provides an efficient and reliable geophysical exploration technical means for exploring hidden uranium mine in China.

Description

technical field [0001] The invention belongs to the technical field of uranium ore exploration, and in particular relates to a method for delineating favorable areas for uranium mineralization based on radon-active uranium comprehensive index. Background technique [0002] Uranium resources are national strategic resources for both military and civilian uses. The current proven uranium resources in my country cannot meet the needs of the country for both military and civilian uses, and most of them still rely on imports. In order to ensure the supply of uranium resources in our country, it is necessary to vigorously promote the exploration of domestic uranium resources. Since the superficial uranium deposits in our country have been explored, the current focus of uranium exploration has shifted to the deep concealed uranium deposits. Due to the deep buried type of uranium ore bodies, the information related to uranium mineralization produced on the surface is relatively wea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V5/00
CPCG01V5/281G01V5/26Y02E30/30
Inventor 赵丹李子颖黄志新修晓茜吴国东王勇吴儒杰
Owner BEIJING RES INST OF URANIUM GEOLOGY
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