摘要
Abstract
Taking a certain limestone mining area as the research area,based on a clear understanding of the basic stratigraphic distribution and structure of the research area,and following the principle of maintaining approximately perpendicular lines with the main structural lines,222 survey lines(with a spacing of 100.0 m)and4 cutting lines(135 ° direction,with a spacing of 2.0 km)were planned within the survey area.After using the background field to correct the electromagnetic data drift caused by changes in flight time and temperature,the electromagnetic data of the study area was collected by flying along the preset measurement line direction with slight terrain undulations.After using linear interpolation method to correct the collected data,draw a contour map of electromagnetic measurement data outliers,and determine the specific distribution of non-metallic minerals based on the distribution of outliers,thus achieving high-quality geological exploration of non-metallic minerals.In the drilling verification results,the main distribution areas of quartz and feldspar were identified as S6,S7 and S8 regions;The main distribution areas of graphite are S1,S2,S3,S4 and S5 regions.This research result can provide important support for high-quality exploration of non-metallic mineral geology in this area.关键词
综合地质勘探法/非金属矿/背景场飞行/电磁数据漂移/线性插值/等值线平面图Key words
Comprehensive geological exploration method/Non-metallic minerals/Background field flight/Electromagnetic data drift/linear interpolation/Contour plan分类
天文与地球科学
