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

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...

AI Technical Summary

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 specific enough to replace it with a general theory

At present, there is no research method for the genetic mechanism of specific types of vermicularite in specific rocks.

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