Method for delineating pegmatite lithium ore based on total amount of gamma and high-density electrical method

Abstract

The invention discloses a method for delineating a pegmatite lithium ore based on the total amount of gamma and a high-density electrical method. The method comprises the steps of: collecting a gammaexposure rate on each section and the apparent resistivity and the apparent polarizability at different depths on the section; marking abnormal measurement points in the apparent resistivity, the apparent polarizability and the gamma exposure rate; inputting the apparent resistivity and the apparent polarizability into inversion software to obtain an apparent resistivity cross-section diagram andan apparent polarizability cross-section diagram; generating a planar profile map for measuring the total amount of gamma by using the Mapgis software; inputting the apparent resistivity cross-sectiondiagram, the apparent polarizability cross-section diagram and the planar profile map after format conversion into the Mapgis software to generate a comprehensive profile map; respectively circling afirst occurrence area and a second occurrence area on the comprehensive profile map by using the abnormal measurement points; and marking the overlapped first occurrence area and the second occurrence area as a deposit area of the pegmatite lithium ore, and marking the remaining first occurrence area and the second occurrence area as a suspicious area of the pegmatite lithium ore.

Description

Technical field [0001] The invention relates to the technical field of mineral deposit surveying, in particular to a method for delineating pegmatite lithium ore based on gamma total and high-density electrical measurement. Background technique [0002] Lithium mines are important strategic minerals, including salt lake-type lithium mines associated with underground brine-type potassium salts and granite pegmatite-type hard rock lithium mines. At present, the salt lake-type lithium mines associated with brine-type potassium salts The development and utilization of technology has not yet achieved a good breakthrough, and the lithium resources used by the new energy lithium battery industry still use granite pegmatite-type hard rock lithium ore as the main material source. [0003] The traditional method of prospecting for pegmatite lithium deposits is to determine the target area by means of regional geological survey, special geological survey, and geochemical exploration, and then...

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Problems solved by technology

[0003] The traditional pegmatite lithium ore prospecting method is to determine the target area through regional geological survey, special geological survey, chemical exploration and other means, and then expose and verify through a large number of trenching work. There are several problems in the process: in Sichuan In many places, the mountains are high and the forests are dense, and the terrain is severely cut. The geological survey work requires a lot of manpower and material resources. A large amount of trenching work cannot be carried out by large-scale machinery. The trenching can only be excavated manually, which is inefficient and takes a long time. Add more costs; in addition, under the current situation, under the stricter requirements of environmental protection, the concept of green exploration is advocated, and the traditional geological prospecting through a large number of trenches to reveal ore will be more and more restricted

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