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A comprehensive evaluation technology method for sandstone-type uranium deposits

A comprehensive evaluation and sandstone-type technology, which is applied in the field of uranium geology research, can solve problems such as high economic cost and unsuitable economic development physique, and achieve the effect of shortening the cycle and saving costs

Active Publication Date: 2019-09-17
BEIJING RES INST OF URANIUM GEOLOGY
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  • Description
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Problems solved by technology

The most direct and effective way to find this type of uranium ore body is to expose it by drilling, but the economic cost is too high and it does not meet the current economic development status of our country.

Method used

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  • A comprehensive evaluation technology method for sandstone-type uranium deposits
  • A comprehensive evaluation technology method for sandstone-type uranium deposits
  • A comprehensive evaluation technology method for sandstone-type uranium deposits

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Embodiment

[0074] Taking the Binxian-Changwu area on the southern edge of the Ordos Basin as an example, a kind of sandstone-type uranium deposit comprehensive evaluation technical method provided by the present invention is described in detail.

[0075] The tectonics of the Binxian-Changwu area are located at the transitional part of the secondary tectonic unit Yi-Shaan slope and Weibei uplift in the Ordos Basin. The exposed sedimentary cap rocks are developed from bottom to top with Upper Triassic, Middle Jurassic Yan'an Formation, Zhiluo Formation and Anding Formation, Lower Cretaceous, Neogene and Quaternary, and the Lower Jurassic Fuxian Formation, Upper Jurassic Jurassic Fenfanghe Formation, Upper Cretaceous and Paleogene. The lower member of the Zhiluo Formation is the main ore-bearing target layer, and the ore-bearing lithology is mainly gray feldspathic quartz sandstone rich in charcoal and pyrite, followed by gray-green sandstone. The bottom of the ore-bearing layer is thick g...

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Abstract

The invention belongs to the technical field of uranium ore geological research, and particularly discloses a sandstone uranium ore comprehensive evaluation technology method. The method comprises thefollowing steps of 1, determining a uranium ore-forming favorable geological background and an ore-forming environment; 2, determining depositional subfacies or microfacies and spatial distribution of an ore-finding target layer; 3, identifying and locating a uranium ore-forming favorable sand body; 4, comprehensively extracting ore-forming favorable information; and 5, delineating an ore-formingfavorable region, and comprehensively evaluating ore-forming potential. According to the method, the steps are irreversibly carried out in sequence, and the uranium ore-forming potential of a regioncan be efficiently, quickly and objectively; uranium geological background and ore-forming environment analysis is a principal factor, wherein uranium source condition analysis is a top priority, andif the region does not have a uranium source condition, uranium ore does not exist no matter how good other conditions are; and by analyzing the ore-forming geological background and the ore-forming environment, favorable ore-forming geological conditions are determined.

Description

technical field [0001] The invention belongs to the technical field of uranium ore geological research, and in particular relates to a technical method for comprehensive evaluation of sandstone-type uranium ore. Background technique [0002] Sandstone-type uranium deposits are basically blind mines deeply buried in sedimentary basins, and most of the exposed uranium ore bodies have been denuded and leached, making them useless. The most direct and effective way to find this type of uranium ore body is to expose it by drilling, but the economic cost is too high, which is not in line with the current economic development of our country. In order to search for sandstone-type uranium deposits accurately and efficiently, the more effective method at present is to make full use of the data (including geology, drilling, logging, seismic, geophysical, chemical, etc.) remote sensing), combined with the ground radioactive measurement, aerial release and aeromagnetic measurement data ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06
Inventor 李子颖秦明宽张字龙蔡煜琦贺锋
Owner BEIJING RES INST OF URANIUM GEOLOGY
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