{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T14:21:03Z","timestamp":1770042063262,"version":"3.49.0"},"reference-count":53,"publisher":"SAGE Publications","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IFS"],"published-print":{"date-parts":[[2021,8,11]]},"abstract":"<jats:p>How to more effectively perform anomaly detection of combination information has always been an important issue for the scholars in various fields. In order to identify and extract the geochemical anomaly information related to polymetallic mineralization in the Hunjiang area, this article uses the hybrid method that combines multivariate canonical harmonic trend analysis (MCHTA), singularity analysis with radius-areal metal amount and improved adaptive fuzzy self-organizing map (IAFSOM). First, multiple sets of combination feature information with multi-dimensional variables will be obtained through the MCHTA method, which information is considered as the initial information for the subsequent analysis. Next, the singularity analysis method is used to process the combination concentration value to calculate the singularity indexes. Finally, the singularity indexes are classified by the IAFSOM method, and nine groups of sample data are obtained. The analysis results found that the samples information in fourth group covered most of the low \u03b1-values. The main conclusions in this study are as follows: (1) The MCHTA method can effectively detect the combination information related to geochemical anomaly; (2) The application of singularity analysis method with radius-areal metal amount can reveal the significant characteristics of mineralization combination elements; (3) IAFSOM can be used as an effective tool for the classification and identification of geochemical anomaly with combination information; (4) the hybrid method that combines MCHTA method, singularity analysis and IAFSOM model has a good indication significance in the prospecting of geochemical anomalies, and could provide a good method for geochemical prospecting.<\/jats:p>","DOI":"10.3233\/jifs-210786","type":"journal-article","created":{"date-parts":[[2021,7,10]],"date-time":"2021-07-10T04:58:07Z","timestamp":1625893087000},"page":"2101-2110","source":"Crossref","is-referenced-by-count":0,"title":["Application of multivariate canonical harmonic trend analysis, singularity analysis with radius-areal metal amount and improved adaptive fuzzy self-organizing mapping to identify geochemical anomaly related to iron polymetallic mineralization in Hunjiang district, Northeastern China"],"prefix":"10.1177","volume":"41","author":[{"given":"Mengxue","family":"Cao","sequence":"first","affiliation":[{"name":"College of Mathematics and Physics, Chengdu University of Technology, Chengdu, China"},{"name":"Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Chengdu, China"}]},{"given":"Laijun","family":"Lu","sequence":"additional","affiliation":[{"name":"College of Mathematics and Physics, Chengdu University of Technology, Chengdu, China"},{"name":"Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Chengdu, China"}]},{"given":"Yu","family":"Zhong","sequence":"additional","affiliation":[{"name":"College of Mathematics and Physics, Chengdu University of Technology, Chengdu, 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