Abstract
AbstractModern geophysical techniques provide great amount data of geophysical field that contain rich information about crustal structures, which can be extracted for geo‐mapping based on theory of mathematical physics. This paper shows that the high‐order spectral moments of regional gravity data include information of geometrical contour surface, which can be used for selection, positioning and classification of some types of geological structures. By using second‐order spectral moments of Bouguer gravity data, one can calculate their statistical unvaried quantities and the ridge‐like parameter, which characterizes the crustal deformation belts and can be used for mapping regional distribution of the deformation belts. The boundaries between areas of strong or weak ridge‐like parameters represent boundaries of different structural units. We can further compute the second‐order spectral moments of the statistical unvaried quantities to calculate the boundary parameter, which may be used for tracing and positioning the structural boundaries after some enhancement are added. This paper gives all the formula for computing the ridge and the boundary parameters, and testing results on crustal structural analysis in Tarim basin, Northwest China. As the results, deep High‐ and Low‐density belts within the Tarim basin are located precisely, providing important basic images for oil/gas exploration in the basin.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
