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Rapid identification method for sandstone type uranium mine target layer rock geochemical environment

A technology of geochemistry and identification method, applied in the field of uranium ore exploration, can solve the problems of predicting the long period of redox transition zone, restricting the effect of uranium ore exploration, and high cost

Pending Publication Date: 2022-04-15
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

[0003] Traditional chemical analysis methods to identify the rock geochemical environment of the target layer and predict the redox transition zone have a long cycle, high cost, and poor timeliness. They cannot guide the deployment of drilling work in a timely manner, which restricts the effectiveness of uranium ore exploration.

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  • Rapid identification method for sandstone type uranium mine target layer rock geochemical environment
  • Rapid identification method for sandstone type uranium mine target layer rock geochemical environment
  • Rapid identification method for sandstone type uranium mine target layer rock geochemical environment

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Embodiment Construction

[0060] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0061] A method for quickly identifying the rock geochemical environment of a sandstone-type uranium ore target layer provided by the present invention specifically includes the following steps:

[0062] Step 1. Select the prospecting line profile

[0063] Select an exploration line profile in the area where sandstone-type uranium deposits are being explored, and the selection of the exploration line profile must meet the following conditions at the same time:

[0064] a. Contains at least 3 drill holes;

[0065] b. All boreholes developed the target layer.

[0066] Step 2. Classify sandstone types

[0067] The drilling core sandstone of the target layer is classified according to the color, and the division method is as follows:

[0068] Oxidation tone sandstone: the color of the drill core sandstone is red, yellow, brown, etc.;

[0069]...

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Abstract

The invention belongs to the technical field of uranium mine exploration, and particularly relates to a rapid identification method for a sandstone type uranium mine target layer rock geochemical environment, which comprises the following steps: step 1, selecting an exploration line profile; 2, sandstone types are divided; step 3, measuring Th and U contents of sandstone of a target layer; step 4, calculating Th and U content background values of the target layer sandstone; 5, correcting a target layer sandstone U content background value; and 6, judging the geochemical environment of the target layer rock. According to the method, the sandstone type uranium mine target layer rock geochemical environment is identified by using the Th / U value of the sandstone, the alteration zone is divided, and the method is rapid, convenient, low in cost, high in precision and high in applicability.

Description

technical field [0001] The invention belongs to the technical field of uranium ore exploration, in particular to a method for quickly identifying the rock geochemical environment of a sandstone-type uranium ore target layer. Background technique [0002] Sandstone-type uranium mineralization is mainly controlled by redox transition zones in space. Accurate and rapid identification of the rock geochemical environment of sandstone-type uranium deposit target rocks and division of alteration zones are of great significance for delineating redox transition zones and improving exploration efficiency. The traditional method to judge the geochemical environment of rocks is mainly through the analysis of Fe in rock samples. 2+ , Fe 3+ , S, C 有 , ΔEh and other geochemical indicators, and integrate various analysis indicators to achieve the purpose of zoning research on the alteration zone of the target layer. [0003] The traditional chemical analysis method to distinguish the roc...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/30
Inventor 李西得李子颖谢惠丽齐天骄
Owner BEIJING RES INST OF URANIUM GEOLOGY