The potential of Edge recognition method on the basis of the improved hyperbolic tangent filter applied to potential field data: A case study from Madagascar
文献类型：期刊论文
| 作者 | Li, Wen2; Wang, Wanyin1,2,3; Li, Zhongsheng2 |
| 刊名 | JOURNAL OF AFRICAN EARTH SCIENCES
 |
| 出版日期 | 2025-11-01 |
| 卷号 | 231页码:18 |
| 关键词 | Edge recognition method Hyperbolic tangent function Gravity anomalies Magnetic anomalies Madagascar island |
| ISSN号 | 1464-343X |
| DOI | 10.1016/j.jafrearsci.2025.105779 |
| 通讯作者 | Wang, Wanyin(wwy7902@chd.edu.cn) |
| 英文摘要 | Edge recognition methods based on gravity and magnetic field data have been widely used, particularly in identifying faults and rock mass boundaries, due to the unique advantages of these methods. The prevailing edge recognition methods often have difficulty in effectively balancing the anomaly amplitudes generated by geological bodies located at different burial depths, resulting in edge recognition results with diminished resolutions. To overcome these problems, we propose a novel edge recognition method (IHRHG) based on the hyperbolic tangent function with regulatory factor alpha and the regularization derivative of horizontal gradient (RHG) of potential field data. Through synthetic gravity and magnetic model testing, we find that the proposed filter has better performance compared with other commonly used methods, which can balance anomalous signals and avoid the generation of spurious boundaries. Finally, we successfully use the method to study the characteristics of major fault distributions on Madagascar Island and adjacent areas. The effectiveness and practicality of IHRHG filter are demonstrated by evaluating a synthetic example and a real example from Madagascar Island. The main advantage of IHRHG filter is that the method can outline boundaries located at different depths simultaneously, and its detection result is clear and with high resolution and accuracy, while avoiding the generation of false signals. |
| WOS关键词 | TECTONIC EVOLUTION ; MORONDAVA BASIN ; LOGISTIC FUNCTION ; ANALYTIC SIGNAL ; MAGNETIC DATA ; SHEAR ZONES ; GRAVITY ; ENHANCEMENT ; MARGIN ; TILT |
| 资助项目 | Research on the control mechanism of hydrocarbon basins and depressions in offshore China by stratigraphic structure and regional structure[CCL2022RCPS0794RQN] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001543153600001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/202764]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 通讯作者 | Wang, Wanyin |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Changan Univ, Sch Geol Engn & Geomat, Xian 710054, Peoples R China 3.Natl Engn Res Ctr Offshore Oil & Gas Explorat, Beijing 100028, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Wen,Wang, Wanyin,Li, Zhongsheng. The potential of Edge recognition method on the basis of the improved hyperbolic tangent filter applied to potential field data: A case study from Madagascar[J]. JOURNAL OF AFRICAN EARTH SCIENCES,2025,231:18. |
| APA | Li, Wen,Wang, Wanyin,&Li, Zhongsheng.(2025).The potential of Edge recognition method on the basis of the improved hyperbolic tangent filter applied to potential field data: A case study from Madagascar.JOURNAL OF AFRICAN EARTH SCIENCES,231,18. |
| MLA | Li, Wen,et al."The potential of Edge recognition method on the basis of the improved hyperbolic tangent filter applied to potential field data: A case study from Madagascar".JOURNAL OF AFRICAN EARTH SCIENCES 231(2025):18. |
入库方式： OAI收割
来源：海洋研究所
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