Spreading Magnetic Anomalies Separation of the South China Sea Based on the Nested Elliptical Directional Filters
Spreading magnetic anomalies recorded the paleo-geomagnetic field variation that has great significance in the investigation of the extension process of ocean basins. Interpreting spreading magnetic anomalies under complex geological environments is challenging, especially for marginal sea basins. W...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/11/3/521 |
| _version_ | 1797610918096404480 |
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| author | Mingming Wang Song Chen Herong Gui |
| author_facet | Mingming Wang Song Chen Herong Gui |
| author_sort | Mingming Wang |
| collection | DOAJ |
| description | Spreading magnetic anomalies recorded the paleo-geomagnetic field variation that has great significance in the investigation of the extension process of ocean basins. Interpreting spreading magnetic anomalies under complex geological environments is challenging, especially for marginal sea basins. We proposed nested elliptical directional filters to separate the spreading magnetic anomalies of the South China Sea (SCS). The results show that the spreading magnetic anomalies separated by the nested elliptical directional filters depict the expansion process of the oceanic crust, and the interference magnetic anomalies are effectively suppressed. The separated spreading magnetic anomalies indicate that the expansion process of the SCS is affected by the interactions between the surrounding plates. The spreading magnetic anomalies of the SCS are warped, interrupted, and not strictly parallel. The pattern of the spreading magnetic anomalies reflects multiple ridge jumps during the expansion process and the post-spreading magmatic disturbances. The long-wavelength magnetic anomalies indicate lithospheric fractures and Curie surface variations in the SCS, which are affected by the post-spreading magmatic rejuvenation. The magnetic anomalies of the SCS resulted from the superposition of magnetic anomalies in the ocean crust and the uppermost mantle. |
| first_indexed | 2024-03-11T06:21:40Z |
| format | Article |
| id | doaj.art-f406b41d3f1946849f48a6c93820d7c8 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-11T06:21:40Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-f406b41d3f1946849f48a6c93820d7c82023-11-17T11:56:48ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-02-0111352110.3390/jmse11030521Spreading Magnetic Anomalies Separation of the South China Sea Based on the Nested Elliptical Directional FiltersMingming Wang0Song Chen1Herong Gui2School of Resources and Civil Engineering, Suzhou University, Suzhou 234000, ChinaSchool of Resources and Civil Engineering, Suzhou University, Suzhou 234000, ChinaSchool of Resources and Civil Engineering, Suzhou University, Suzhou 234000, ChinaSpreading magnetic anomalies recorded the paleo-geomagnetic field variation that has great significance in the investigation of the extension process of ocean basins. Interpreting spreading magnetic anomalies under complex geological environments is challenging, especially for marginal sea basins. We proposed nested elliptical directional filters to separate the spreading magnetic anomalies of the South China Sea (SCS). The results show that the spreading magnetic anomalies separated by the nested elliptical directional filters depict the expansion process of the oceanic crust, and the interference magnetic anomalies are effectively suppressed. The separated spreading magnetic anomalies indicate that the expansion process of the SCS is affected by the interactions between the surrounding plates. The spreading magnetic anomalies of the SCS are warped, interrupted, and not strictly parallel. The pattern of the spreading magnetic anomalies reflects multiple ridge jumps during the expansion process and the post-spreading magmatic disturbances. The long-wavelength magnetic anomalies indicate lithospheric fractures and Curie surface variations in the SCS, which are affected by the post-spreading magmatic rejuvenation. The magnetic anomalies of the SCS resulted from the superposition of magnetic anomalies in the ocean crust and the uppermost mantle.https://www.mdpi.com/2077-1312/11/3/521spreading magnetic anomaliesnested elliptical directional filterSouth China Seaexpansion processinteractions of platespost-spreading magmatic rejuvenation |
| spellingShingle | Mingming Wang Song Chen Herong Gui Spreading Magnetic Anomalies Separation of the South China Sea Based on the Nested Elliptical Directional Filters Journal of Marine Science and Engineering spreading magnetic anomalies nested elliptical directional filter South China Sea expansion process interactions of plates post-spreading magmatic rejuvenation |
| title | Spreading Magnetic Anomalies Separation of the South China Sea Based on the Nested Elliptical Directional Filters |
| title_full | Spreading Magnetic Anomalies Separation of the South China Sea Based on the Nested Elliptical Directional Filters |
| title_fullStr | Spreading Magnetic Anomalies Separation of the South China Sea Based on the Nested Elliptical Directional Filters |
| title_full_unstemmed | Spreading Magnetic Anomalies Separation of the South China Sea Based on the Nested Elliptical Directional Filters |
| title_short | Spreading Magnetic Anomalies Separation of the South China Sea Based on the Nested Elliptical Directional Filters |
| title_sort | spreading magnetic anomalies separation of the south china sea based on the nested elliptical directional filters |
| topic | spreading magnetic anomalies nested elliptical directional filter South China Sea expansion process interactions of plates post-spreading magmatic rejuvenation |
| url | https://www.mdpi.com/2077-1312/11/3/521 |
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