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Lithogeochemical method for identifying sodium-metasomatic uranium deposit

A technology of geochemistry and uranium deposits, applied in the field of uranium ore exploration, can solve the problems of time-consuming and laborious identification of rocks and ore, and achieve the effects of good timeliness, strong applicability and high accuracy

Inactive Publication Date: 2018-01-26
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

At present, the identification of sodium metasomatized uranium deposits is mainly based on rock ore identification and geochemistry, and rock ore identification is time-consuming and laborious

Method used

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  • Lithogeochemical method for identifying sodium-metasomatic uranium deposit

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Embodiment 1

[0031] Take the Jiling uranium deposit as an example below to describe the method of the present invention in further detail:

[0032] Step 1, rock / ore sample collection;

[0033] Field investigations were conducted in the Jiling area, and 15 samples of relatively fresh rock (ore) were systematically collected. Metasomatite) 8 samples.

[0034] Step 2, performing geochemical analysis on the rock / ore sample;

[0035] The collected samples were crushed to 200 mesh, and the weight of each piece was more than 50g, and the main elements were determined by AB-104L and PW2404 X-ray fluorescence spectrometer for the powder; at the same time, the trace elements were determined by the ELEMENT plasma mass spectrometer for the sample powder ;

[0036] Determination of major elements include: Na 2 O, K 2 O, SiO 2 , CaO, Al 2 o 3 , MgO, P 2 o 5 , MnO, TiO 2 , Fe 2 o 3 , FeO;

[0037] Determination of trace elements include: Th, U, Li, Be, Sc, V, Cr, Co, Ni, Cu, Zn, Ga, Rb, Sr,...

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Abstract

The invention belongs to the technical field of uranium ore exploration, and concretely discloses a lithogeochemical method for identifying sodium-metasomatic uranium deposit. The method comprises thefollowing steps: 1, collecting at least five rock / ore samples with the size being 3 cm * 6 cm * 9 cm; 2, carrying out geochemical analysis on the rock / ore samples collected in step 1, wherein the collected rock / ore samples are crushed until the size is 200 meshes and the weight of every crushed rock / ore sample is more than 50 g; and 3, analyzing rock / ore geochemistry data obtained in step 2, anddetermining the rock / ore samples to be the sodium-metasomatic uranium deposit when the content of Na2O in the rock / ore samples is greater than 6% and a content ratio of Na2O to K2O is greater than 2.5in order to identify the sodium-metasomatic uranium deposit. The method is simple, quick and effective.

Description

technical field [0001] The invention belongs to the technical field of uranium ore exploration, and in particular relates to a rock geochemical method for identifying sodium metasomatized uranium deposits. Background technique [0002] Alkali metasomatized uranium deposits are one of the important types of uranium deposits in Northwest my country. The sodium metasomatized hydrothermal uranium deposit in the Longshoushan uranium metallogenic belt is the most typical alkali metasomatized hydrothermal uranium deposit in China, and it is the uranium deposit discovered in the early stage of uranium resource exploration in my country. Geological prospecting units and research institutes have teamed up many times to conduct exploration and research on sodium metasomatization-type deposits, and have obtained a large amount of actual data on sodium metasomatism-type uranium deposits. Therefore, the construction of the "rock geochemical identification method for sodium metasomatized ...

Claims

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Application Information

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IPC IPC(8): G01N23/223G01N27/62
Inventor 王生云范洪海高洪雷宋振涛陈聪
Owner BEIJING RES INST OF URANIUM GEOLOGY
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