Application of Boundary Identifying Technologies Rsing Gravity and Magnetic Maps in Three-Dimensional Geological Mapping of Western Junggar Area
Zhang Yi
Zhang Shuangxi
Liang Qing
Chen Chao
Abstract：In this paper,four edge-detection methods including normalized deviation (ND)method,a new one proposed by us, are studied for their applications in 3-D mapping.The ND method is featured with low sensitivity to the noise,high accuracy and detailed results.On the basis of the theoretical framework of these methods,we tested their accuracy with synthetic models and gained more information of the geological boundaries by the combination of different methods and edge detecting on multi-scale,which shows good performance.Then we used them in field data of the Karamay back mountain area to get the distribu-tion of faults and rock masses,strikes and depths.The spatial features of some major faults and rock masses are described, which delivers useful information for the 3-D geological mapping of the study area.
Keywords：gravity and magnetic anomaliesedge detectionwesternJunggar area3-D geological mappingfaultrock massgeophysics
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 431-440 )