Determining method for marginal myrmekite formation mechanism of marginal myrmekite in sandstone type uranium deposit

A technology of the cause mechanism and determination method, applied in the direction of aluminum silicate, silicate, material analysis using measurement of secondary emissions, etc., can solve the problems of insufficient cause and confusion, and achieve the effect of sufficient arguments

Active Publication Date: 2018-06-29
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

Using one hypothesis to explain the causes of all vermicular stones is obviously not comprehensive enough, and it is easy to cause unnecessary confusion, but it is not s

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  • Determining method for marginal myrmekite formation mechanism of marginal myrmekite in sandstone type uranium deposit
  • Determining method for marginal myrmekite formation mechanism of marginal myrmekite in sandstone type uranium deposit
  • Determining method for marginal myrmekite formation mechanism of marginal myrmekite in sandstone type uranium deposit

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Embodiment Construction

[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0047] The area of ​​Guidong rock body is a granite type uranium deposit. In the present embodiment, the area of ​​Guidong rock body is the research area, and the present invention will be described in further detail.

[0048] A method for determining the genetic mechanism of edge vermicularite in a granite-type uranium deposit provided by the present invention comprises the following steps:

[0049]Step 1. Determine the petrographic properties of the verticulite and albite reaction edges in the granite-type uranium deposit in the study area.

[0050] Step 1.1. Select fresh granite and altered granite, and grind 40 light slices.

[0051] Step 1.2, by observing under a polarizing microscope, determine the output state of the edge vermectite and albite reaction edge, circle 10 typical edge vermectite and 10 albite reaction edge positions with a...

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Abstract

The invention belongs to the technical field of geology and specifically discloses a determining method for a marginal myrmekite formation mechanism of marginal myrmekite in sandstone type uranium deposit. The method comprises the following steps: determining microphysiography characteristics properties of myrmekite and albite coronite in research area uranium ore deposit in a research area; determining chemical component characteristics of marginal myrmekite in a rock body and chemical component characteristics of central plagioclase, marginal myrmekite and marginal potassium feldspar adjacent to the marginal myrmekite in the rock body; determining chemical component characteristics of albite coronite in the rock body and chemical component characteristics of central plagioclase, marginalmyrmekite and marginal potassium feldspar adjacent to the albite coronite in the rock body; comparing the chemical component characteristics of the marginal myrmekite with the chemical component characteristics of the albite coronite and determining formation causes of the marginal myrmekite and the albite; determining a thickness proportion of an oligoclase layer to myrmekite; determining a molar ratio of myrmekite plagioclase to the myrmekite to the oligoclase; determining formation mechanisms of myrmekite and albite edge formation causes. The method disclosed by the invention establishes aset of marginal myrmekite formation mechanism methods to find out marginal myrmekite formation mechanisms and the relationship between the marginal myrmekite formation mechanisms and uranium mineralization.

Description

technical field [0001] The invention belongs to the technical field of geology, and in particular relates to a method for determining the genetic mechanism of edge vermicularite in a granite-type uranium deposit. Background technique [0002] Vermectite refers to the microscopic intergrowth aggregates between wormlike quartz and sodium plagioclase, which are produced in the form of intergranular, intragranular and isolated production, and can also be filled in the form of veins or fissures. There are different hypotheses about the origin of vermicular, such as crystallization theory, accountant theory, exsolution theory, recrystallization theory, tectonic strain theory, deep melting and co-synthesis theory, etc. [0003] At present, the method of determining the genetic mechanism of vermicularite is mainly based on the characteristics of vermicularite, the lithology of the rock where it is located, the formation age, and a certain theoretical basis to explain the origin of a...

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Application Information

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IPC IPC(8): G01N23/22C01B33/26
CPCC01B33/26C01P2004/01G01N23/22
Inventor 张玉燕李子颖黄志章李秀珍
Owner BEIJING RES INST OF URANIUM GEOLOGY
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