• 责任者：Zhang Lili (Key Laboratory of Petroleum Resources ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Hao Tianyao
• 刊名：Chinese Journal of Geophysics
• 出版年：2010
• 卷期：53(6)
• 关键词：磁异常 ; magnetic anomaly ; 微渗漏 ; microseepage ; 油气勘探 ; petroleum exploration ; 北黄海盆地 ; North Yellow Sea Basin
• 页码：p.1354-1365
• 图表：9 illus., 2 tables, 41 refs.
• 分类号：1600
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

The authors use the magnetic exploration method and propose a supervised-learning-based pattern recognition method for recognizing magnetic anomalies related to sea-floor hydrocarbon-seepage alteration zones. The authors apply the method to delineate alteration-induced aeromagnetic anomaly zones of the North Yellow Sea Basin. From the overlaying result of the anomalous zones with the distribution of Mesozoic strata and some geochemical anomalies the method is efficient in recognizing the magnetic anomalies related to alteration zones. The integrated analysis of regional structure, magnetic field, and geochemical anomalies of the study area shows that the seepage alteration-induced anomalous zones located in the eastern and northern part of the area may be promising hydrocarbon prospects in the North Yellow Sea Basin.