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Method for defining favorable area of sandstone-type uranium mineralization under strong construction background

A sandstone-type, favorable area technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of insufficient attention to structural ore-controlling elements, lack of evaluation indicators, etc., to achieve accurate delineation results, improve accuracy, The effect of wide applicability

Active Publication Date: 2017-06-06
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

These methods are limited to the simple and general intersecting combination of various predictive variables, the most critical structural ore-controlling elements are not given enough attention, and there is a lack of specific evaluation indicators.

Method used

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  • Method for defining favorable area of sandstone-type uranium mineralization under strong construction background
  • Method for defining favorable area of sandstone-type uranium mineralization under strong construction background

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0019] The present invention provides a method for delineating favorable sandstone-type uranium ore-forming areas under a strong structural background, comprising the following steps:

[0020] Step 1. Select the target layer in the working area, select the 1:50,000-1:500,000 uranium ore geological map in the working area, and use the ore-hosting layers of the main sandstone-type uranium deposits in the working area as the target layer for evaluation;

[0021] Step 2. Calculate the uplift and denudation amount of the target layer. For the calculation of the uplift and denudation amount, first, collect the surface target layer Ro data tested in the work area, and the areas lacking the target layer Ro data need to sample the surface target layer samples, and use MPV-SP to display Microphotometer test the Ro value in the sample; then, use ln(Ro)=0...

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Abstract

The invention belongs to the technical field of sandstone-type uranium mineralization potential evaluation and collective geological prospecting in a basin, and specifically relates to a method for defining a favorable area of sandstone-type uranium mineralization under a strong construction background. The method comprises the following steps: 1, selecting a target layer in a work area; 2, calculating a lifting denudation quantity of the target layer; 3, constructing a preferable prediction theme; 4, predicting a weight assignment value of the theme; 5, calculating and predicting the unit ore-forming favorability; 6, defining and layering the favorable area of uranium mineralization. The method carries out the qualitative and quantitative evaluation of the most key construction parameters, highlights the contribution of a stratum denudation quantity caused by the construction effect to a uranium ore deposit, and preliminarily selects the evaluation region.

Description

technical field [0001] The invention belongs to the field of sandstone-type uranium ore-forming potential evaluation and comprehensive prospecting technology in basins, and specifically relates to a method for delineating favorable sandstone-type uranium ore-forming areas under strong structural background. Background technique [0002] my country's sandstone-type uranium deposits are usually produced in the basin-mountain junctions of Mesozoic and Cenozoic basins, such as the southern margin of the Yili Basin and the southwestern margin of the Turpan-Hami Basin. The structural deformation of the basin-mountain junction is strong and the structural style is complex. The formation, preservation and distribution of sandstone-type uranium deposits are mainly controlled by the intensity of tectonic activities. Because tectonic activities can not only directly control ore deposits, but also indirectly control the output and distribution of uranium deposits by affecting uranium so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V9/00G06F19/00
CPCG01V9/00G16Z99/00
Inventor 刘章月黄少华秦明宽周觅何中波郭强许强宋继叶
Owner BEIJING RES INST OF URANIUM GEOLOGY
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