Method for accurately delineating hidden volcano activity center in uranium deposit

Abstract

The invention discloses a method for accurately delineating a hidden volcano activity center in a uranium deposit, and the method comprises the steps: collecting or extracting the geological information of a volcano mechanism in a target region, and preliminarily delineating the volcano activity range; performing volcano structure interpretation based on the high-precision remote sensing image, and extracting remote sensing identification mark information of a volcano mechanism in the target area; fusing the acquired geological information and the extracted remote sensing identification mark information, and further delineating the volcano mechanism range; measuring or collecting large-scale gravity area data in a defined volcano mechanism range to obtain Bouge gravity abnormal parameters;performing gridding processing, vertical derivation and upward continuation for 500-1000 meters on the obtained Bouge gravity anomaly parameters, and performing graphical processing on a data contourline to generate a vertical guide number contour map; and selecting an annular negative value abnormal area in the generated vertical guide number contour map, and delineating a hidden volcano activity center by integrating geological information. According to the method, the hidden volcano activity center can be quickly and accurately delineated.

Description

technical field [0001] The invention belongs to the fields of uranium ore geological prospecting and basic geological survey, and in particular relates to a method for accurately delineating hidden volcanic activity centers in uranium deposits. Background technique [0002] Volcanic rock-type uranium deposits are one of the "four major types of uranium deposits" in my country. They were once the most important type of uranium resources in China and occupied an important position in uranium exploration. Volcanic institutions, especially volcanic activity centers, such as craters, volcanic necks, and sub-porphyry bodies, are important ore-controlling factors and prospecting signs for volcanic rock-type uranium deposits. Finding and locating volcanic activity centers is an important step in the exploration of volcanic rock-type uranium deposits. important component of the activity. [0003] Generally speaking, the location of volcanic institutions is mainly based on geological...

AI Technical Summary

Problems solved by technology

However, the positioning information obtained by this single method is often speculative or highly probable, and cannot be accurately positioned, so that many uranium deposits, such as Hongshanzi, Daguanchang, and Yangtian, etc. Uranium deposits have been discovered for decades, but the specific location of the volcanic center has not been determined

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