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A method for determining the metallogenic age of sandstone-type uranium deposits

A determination method and sandstone type technology, which can be used in measurement devices, instruments, scientific instruments, etc., can solve the problems of difficulty in determining the age of uranium mineralization.

Active Publication Date: 2013-03-13
BEIJING RES INST OF URANIUM GEOLOGY
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  • Abstract
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Problems solved by technology

Correctly determining the age of uranium mineralization poses great difficulties

Method used

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  • A method for determining the metallogenic age of sandstone-type uranium deposits

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Embodiment Construction

[0030]

[0035] WU=WUm×Kp②

[0038]

[0039]

[0046]

[0050]

[0052]

[0055]

[0057]

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Abstract

The invention belongs to the technical field of isotope dating, and specifically discloses a method for determining the metallogenic age of sandstone-type uranium deposits, the steps of which include: determining the content of uranium, radium and lead and the composition of lead isotopes for a group of uranium ore samples formed simultaneously with the same origin , calculate the U-Ra balance coefficient, use the U-Ra balance coefficient to correct the U content, fit the U-Pb isochrone, and use the isochrone slope b to calculate the metallogenic age. The advantages of the present invention are: U-Ra balance coefficient correction is used to restore the uranium content in the sample to the content when no modern uranium has been moved out or brought in, and then the U-Pb isochrone is fitted, and the obtained age result is Unaffected by recent uranium migration or enrichment, a more realistic ore-forming age can be obtained.

Description

A method for determining the metallogenic age of sandstone-type uranium deposits Technical field [0001] The invention belongs to the technical field of isotope dating, in particular to a method for determining the metallogenic age of sandstone-type uranium deposits. Background technique Ore-forming chronological research is an important subject in the study of various ore deposit genetic mechanisms, especially for in-situ leaching sandstone types There are still different opinions on the mineralization and process of uranium deposits. Quite a few scholars believe that it is the uranium-bearing deposits in the erosion source area. Oxygenated water flows along the permeable sand body and deposits in the redox transition zone to form minerals, so the mineralization is a continuous process. according to With this view of continuous mineralization, it is impossible to determine its metallogenic age, and there is no need to study the sandstone-type uranium in sedimentary basi...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 夏毓亮
Owner BEIJING RES INST OF URANIUM GEOLOGY
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