Geophysical exploration method for sodium-metasomatism uranium deposit

Abstract

The invention belongs to the technical field of geological prospecting, and particularly relates to a geophysical exploration method for a sodium-metasomatism uranium deposit. The geophysical exploration method comprises the following steps of: step 1, determining physical property parameters of electrical property and magnetism of rocks in a research area / region; step 2, constructing an ore prospecting geological model of the typical sodium-metasomatism uranium deposit through systematic comprehensive research; step 3, establishing a geophysical exploration prospecting model according to theestablished ore prospecting geological model of the typical sodium-metasomatism uranium deposit in combination with the physical property parameters of the rocks; step 4, and carrying out geophysicalmeasurement, launching geophysical exploration model response analysis, and delineating a favorable ore prospecting section of a deep uranium ore of the sodium-metasomatism uranium deposit through comprehensive analysis. The geophysical exploration method can accelerate the ore prospecting speed, greatly reduces the drilling workload, improves the ore prospecting hit rate, shortens the explorationperiod, and reduces the exploration cost.

Description

technical field [0001] The invention belongs to the technical field of geological exploration, and in particular relates to a method for geophysical exploration of sodium metasomatized uranium deposits. Background technique [0002] Sodium metasomatized uranium deposits are a very important type of hydrothermal uranium deposits, which are widely developed around the world. Such deposits are produced in Ukraine, Australia, Canada, Brazil, Cameroon, Madagascar, the United States, Guyana, and the Czech Republic. Although the average grade of uranium in the sodium metasomatized uranium deposits is mostly lower than that of other types of uranium deposits, the amount of U contained in them is comparable to that of the world-renowned unconformity uranium deposits, and it constitutes a large-scale uranium ore-forming belt with relatively Good prospecting prospect. The sodium metasomatized hydrothermal uranium deposit in the Longshoushan uranium metallogenic belt is the most typic...

AI Technical Summary

Problems solved by technology

However, due to the low grade of this type of uranium ore in my country, the small distribution range, the rapid change of ore-controlling fractures, and the multiple solutions and limitations of a single geophysical prospecting method, the uncertainty of the measurement results is greatly increased. It is difficult to accurately determine the sodium metasomatized uranium. It is a favorable location for ore formation, and it is difficult to break through the exploration results so far

Images