Method for estimating ore-forming depths of granite type hydrothermal uranium ore deposits

Abstract

The invention belongs to the field of solid mineral exploration, and particularly discloses a method for estimating ore-forming depths of granite type hydrothermal uranium ore deposits on the basis ofmicroscopic temperature measurement on different types of fluid inclusion. The method particularly includes steps of 1, acquiring and treating samples from uranium ore deposits; 2, observing, treating and testing fluid inclusion sheets obtained at the step 1 so as to obtain morphological parameters and key phase change parameters of the different types of fluid inclusion; 3, computing parametersof the fluid inclusion according to the parameters, obtained at the step 2, of the fluid inclusion so as to obtain corresponding homogenous pressures of the inclusion; 4, estimating the ore-forming depths according to the homogenous pressures, obtained at the step 3, of the fluid inclusion. The method has the advantages that the ore-forming depths of the granite type hydrothermal uranium ore deposits can be scientifically estimated by the aid of the method, and ore prospecting spaces can be expanded for deep uranium resources of the granite type hydrothermal uranium ore deposits.

Description

technical field [0001] The invention belongs to the field of solid mineral exploration, and in particular relates to a method for estimating the ore-forming depth of a granite-type hydrothermal uranium deposit based on microthermometry of different types of fluid inclusions. Background technique [0002] It is very important to scientifically evaluate the mineralization depth of different types of deposits, and the estimated results have important guiding significance and practical value for deep mineral exploration. For example, shallow low-temperature hydrothermal gold deposits and porphyry copper-gold deposits generally have relatively shallow formation depths, and their exploration depths are often concentrated in the shallow crust. Orogenic gold deposits are formed at relatively deep depths, and industrial ore bodies can extend several kilometers or even tens of kilometers underground, and their exploration depths are often relatively deep. For example, the orogenic gol...

AI Technical Summary

Problems solved by technology

Such estimation results seriously restrict the exploration of deep resources of granite-type hydrothermal uranium deposits, and make people lack enough confidence in the deep prospecting work of such uranium deposits. As a result, most of the exploration of granite-type hydrothermal uranium deposits Limited to a few hundred meters, engineering evaluations of deeper uranium resources in granite-type hydrothermal uranium deposits are rarely performed

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