%0 Journal Article
%T Lithological Characterization and Its Application Based on Three-Dimensional Structure-Coupled Joint Inversion of Gravity and Magnetic Data
%A Junjie Zhou
%A Xingdong Zhang
%A Chunxiao Xiu
%J International Journal of Geosciences
%P 230-237
%@ 2156-8367
%D 2015
%I Scientific Research Publishing
%R 10.4236/ijg.2015.63016
%X Incorporating
structural-coupling constraint, known as the cross-gradients criterion, helps
to improve the focussing trend in cross-plot of multiple physical properties.
Based on this feature, a</span><span class=\"apple-converted-space\" style=\"font-size:12px;font-family:Verdana;\">&nbsp;</span><span style=\"font-size:12px;font-family:Verdana;\">post-processing
technique is studied to characterize the lithological types of subsurface
geological materials after joint inversion. A simple domain transform, which
converts two kinds of participant physical properties into an artificial
complex array, is adopted to extract anomalies manually from homogenous host
rock. A synthetic example shows that structure-coupled joint inverted results
tend to concentrate on the feature trends in the cross-plot, and the main
geological targets are recovered well by a radius-azimuth plot. In a field data
example, the lithological characterization</span><span class=\"apple-converted-space\" style=\"font-size:12px;font-family:Verdana;\">&nbsp;</span><span style=\"font-size:12px;font-family:Verdana;\">reveals
that the main rock types interpreted in the study area agree with the
geological information, thus demonstrating the feasibility of this technique.
%K Lithological Characterization
%K Structure-Coupled Joint Inversion
%K Density Contrast
%K Magnetization
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=54631