A comprehensive method of geophysical and geochemical prospecting for identifying hidden volcanic rock-type uranium mineralization information

Abstract

The invention belongs to the field of uranium resource prospecting and particularly relates to a geophysical and geochemical prospecting comprehensive method for recognizing hidden volcanite-type uranium mineralization information. The method includes the following steps that firstly, the geophysical and geochemical prospecting survey is conducted; secondly, the mean value and the mean square error are calculated; thirdly, the magnetic survey data first vertical derivative is calculated, and normalization processing is conducted; fourthly, the information contrast is calculated; fifthly, indicators for geochemical prospecting are calculated; sixthly, the ore prospecting potentiality is analyzed. The method can be used for accurately recognizing the geophysical and geochemical prospecting comprehensive abnormal information relevant to deep hidden volcanite-type uranium mineralization, and a basis is provided for building the hidden volcanite-type uranium mineralization prospecting index.

Description

technical field [0001] The invention belongs to the field of uranium resource exploration, and in particular relates to a comprehensive physical and chemical prospecting method for identifying hidden volcanic rock type uranium mineralization information. Background technique [0002] With the continuous deepening of uranium mine geological exploration in my country, most of the uranium deposits exposed on the surface and buried at a shallower depth have been discovered. Finding deep hidden uranium deposits has become an important issue for uranium mine geologists. Because hidden volcanic rock-type uranium deposits are buried deep, up to hundreds of meters or even thousands of meters, the geophysical and geochemical information related to uranium mineralization that can be detected on the surface is very weak or absent. The fault structure that plays an important role in the mineralization of volcanic rock-type uranium deposits is the main channel for the decay of uranium suc...

AI Technical Summary

Problems solved by technology

Traditional methods such as surface gamma-ray spectroscopy mainly reflect the radioactive characteristics of the shallow surface, which cannot meet the needs of deep uranium ore prospecting. Although the detection depth of radon and its daughters is greater than that of gamma-ray spectroscopy, However, because it is more easily affected by factors such as landform and climate, its practical application effect is also ambiguous.

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