Method for delineating metallogenic prospective area in alpine mountainous area based on regional geochemistry

Abstract

A method for delineating metallogenic prospective areas in alpine mountainous areas based on regional geochemistry comprises: determining regional objects delineating the metallogenic prospective areas in advance, obtaining known mining areas in the regional objects, and conducting field water system sediment sampling on the known mining areas and the surroundings of the known mining areas; grading and screening the sampled sediments to obtain samples with different particle size grades; testing and analyzing the content of elements in the samples with different particle sizes; comparing, researching and judging element content data in samples with different particle size levels, and determining the optimal sampling particle size of the sediment; carrying out whole-region field water system sediment sampling in the regional object according to the optimal sampling granularity, and analyzing the element content of the sampled whole-region field water system sediment; and determining a metallogenic element combination according to the metallogenic elements and the metallogenic types in the regional object, and delineating geochemical anomalies and metallogenic prospective areas in the regional object by utilizing the metallogenic element combination. According to the method, the interference of aeolian sand in the alpine mountainous area on water system sediments is effectively avoided, and the metallogenic prospective area of main metallogenic elements is accurately delineated.

Description

technical field [0001] The invention relates to the technical field of regional geochemical measurement, in particular to a method for delineating mineralization prospect areas in alpine mountainous areas based on regional geochemistry. Background technique [0002] The regional geochemical method is a method for studying geochemical issues in a specific region. It mainly through the research of regional rock geochemical survey, regional structural geochemistry and ore deposit geochemistry, deepens the understanding of regional basic geology, metallogenic laws, and geological development history, and finally Conducive to regional mineral forecasting. As a basic geological survey, regional petrogeochemical survey can delineate metallogenic prospects and prospecting targets for regional mineral exploration. [0003] Prospect areas of mineralization are the key areas for further mineral surveys speculated and delineated on the basis of metallogenic predictions, regional geolog...

AI Technical Summary

Problems solved by technology

Due to the unique geographical and climatic conditions in alpine mountainous areas, windy sand is usually relatively large, and wind-blown sand will interfere with the measurement of river sediments, and the measurement results cannot reflect the local mineralization information

It is difficult to accurately delineate the ore-forming prospect areas of the main ore-forming elements

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