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Method for predicting pegmatite type uranium and thorium resources related to alkaline magma

A technology for pegmatite and magma, applied in the field of prediction and evaluation of uranium and thorium minerals, can solve the problem of questionable accuracy, and achieve the effect of improving the rate of drilling ore penetration, simplifying the exploration process, and reliably estimating the amount of resources

Pending Publication Date: 2022-04-22
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

[0005] Previous prediction methods for alkaline pegmatite-type uranium-thorium deposits mainly focus on the mineralization outcropping on the surface as a single information basis for exploration, and the accuracy is questionable

Method used

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  • Method for predicting pegmatite type uranium and thorium resources related to alkaline magma
  • Method for predicting pegmatite type uranium and thorium resources related to alkaline magma
  • Method for predicting pegmatite type uranium and thorium resources related to alkaline magma

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Embodiment

[0045] Taking the prediction and comprehensive evaluation of uranium and thorium mineralization in a certain mining area in Jabal Sayid, Saudi Arabia as an example, the prediction method of the present invention is further described.

[0046] The deposit is a composite deposit of uranium-thorium-rare earth, exposed 1km on the surface 2 , the previous work only investigated the surface resources, and the distribution and mineralization of deep ore bodies were not clear. Through the implementation of the method of the invention, a deep model of an ore body shallower than 1000 meters is successfully established, and the ore volume is estimated to be more than 100 million tons.

[0047] Step (1): Carry out geological survey to clarify the characteristics of ore-controlling elements.

[0048] Systematic collection of geological, geophysical, geochemical, remote sensing and radioactive survey data of an alkaline pegmatite deposit and area in the Jabal Sayid area of ​​Saudi Arabia, in...

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Abstract

The invention belongs to the technical field of uranium and thorium mineral product prediction and evaluation, and particularly relates to a method for predicting pegmatite type uranium and thorium resources related to alkaline magma, which comprises the following steps: step (1), carrying out geological survey, and clarifying mineral control element characteristics; (2) carrying out surface energy spectrum measurement, and evaluating a surface mineralization distribution range; (3) soil radon gas measurement is carried out, and the deep mineralization abnormal range is evaluated; step (4), carrying out audio magnetotelluric profile measurement, and delineating an ore control structure range; and (5) multi-information superposition is carried out, and the deep uranium and thorium ore body is predicted and evaluated. According to the method, exploration is carried out on the basis of analysis of multivariate information such as geological ore control elements, the concealed ore body can be predicted more accurately, effectively and quickly, the prospecting efficiency is improved, and the exploration cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of prediction and evaluation of uranium and thorium minerals, and in particular relates to a method for predicting pegmatite-type uranium and thorium resources related to alkaline magma. Background technique [0002] Alkaline rock type uranium deposits refer to uranium deposits produced in alkaline rocks and closely related to the crystallization and differentiation of alkaline magma. as the main feature. The reason why alkaline magma is richer in uranium, thorium, rare earth and other elements than non-alkaline magma is that the increase of alkalinity or temperature in silicate melt can break the Si-Al tetrahedral chain, thereby enhancing the depolymerization of the melt effect, and enhance the solubility of large, highly charged ions (Kyser & Cuney, 2008). [0003] At present, due to the poor economical mineability of this type of uranium deposit, there are few researches on its exploration and predictio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 蔡煜琦李子颖虞航钟军朱斌
Owner BEIJING RES INST OF URANIUM GEOLOGY
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