The application of power spectrum method in Yin-E basin Juyanhai depression magnetic anomaly interpretation
DUAN Rui-Feng1, LIU Jian-Li1,2, SHEN Chen1, YIN Hu1, LI Bing1
1. Geochemical Exploration Team of Shaanxi, Xi'an 710043, China;
2. The First Laboratory of Mineral Resources Exploration and Comprehensive Utilization Key Laboratory of Mineral Resources in Shaanxi Province, Xi'an 710043, China
In fine precision magnetic survey data processing and interpretation usually requires quantitative interpretation of the magnetic body depth information for the study of regional tectonic,magmatic rocks and ore analysis also has important significance.Power spectrum method is a common method for calculating the depth of the magnetic material but the program uses the sliding window method.And parameter selection subjectivity can cause a calculation error.The author through computer interaction 2.5D gravity and magnetic joint inversion fitting and drilling data comparative analysis,select the optimal parameter combination,uses the power spectrum method to calculate the depth information of magnetic substance in Yin-E basin Juyanhai depression.