3D magnetization inversion using fuzzyc-means clustering with application to geology differentiation

• DOI: 10.1190/geo2015-0636.1
• Publication Date: 2016-07-11T08:39:48Z
• Authors: Yaoguo Li; Jiajia Sun
• Keywords: 01 natural sciences; 0105 earth and related environmental sciences

The presence of remanent magnetization has hindered the application generalized 3D magnetic inversion in exploration geophysics because unknown and variable directions. Although many authors have developed different approaches to deal with this difficulty, it remains a challenge. We new approach for inverting total-field anomaly recover distribution by using fuzzy c-means clustering technique. approximates variation directions small number possible orientations thereby achieves stability recovered improves spatial imaging magnitude. also found that inverted can yield more information than does standard susceptibility provide opportunity interpretation. magnitude helps define configuration structure causative bodies 3D, whereas help distinguish between assist efforts such as geology differentiation. Thus, enables complete use magnetization. used synthetic field data sets illustrate algorithm, demonstrate feasibility differentiation directions, develop means quantify confidence results.