Extraction of lead,nickel polymetallic mineralization information in Baldau,Qinghai based on Landsat 8 and GF-1 data
This article mainly introduces that in Bardagu area of Qinghai,we extracted iron staining remote sensing anomalies and hydroxyl remote sensing anomalies alteration information by applying American landsat8(ETM+)and Gaofen-1 data,identified stratigraphy and lithology information of rock body and summarized remote sensing geological features and interpretation signs of main geological bodies,and at the same time,more than 40 linear tectonics and 4 annular tectonics are deciphered.Combined with the geological,physical and chemical exploration data in the area,using geological soil(rock)profiles,chemical samples and other means of work,the 8 remote sensing alteration anomalies circled preferably selected 2 for the verification of mineralization,and in the extracted alteration anomalies were found to have high grade lead-zinc ore and nickel ore,with high spatial coupling.This not only provides a basis for target area delineation and geological prospecting in the study area,but also indicates that remote sensing technology plays an indispensable role in mineral exploration.
万方数据
维普
