Application of High-Resolution Aeromagnetic and Gamma-ray Spectrometry Surveys for Litho-Structural Mapping in Southwest China
Airborne geophysical surveys serve as an effective tool for litho-structural mapping, providing extensive and high-resolution underground information. They offer vital data support for the interpretation and analysis of lithologies and structures, complementing surface geological mapping. In the stu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/13/11/1424 |
| _version_ | 1797458230366961664 |
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| author | Guixiang Liao Yongbo Li Yongzai Xi Ning Lu Shan Wu |
| author_facet | Guixiang Liao Yongbo Li Yongzai Xi Ning Lu Shan Wu |
| author_sort | Guixiang Liao |
| collection | DOAJ |
| description | Airborne geophysical surveys serve as an effective tool for litho-structural mapping, providing extensive and high-resolution underground information. They offer vital data support for the interpretation and analysis of lithologies and structures, complementing surface geological mapping. In the study area of the Nanpanjiang-Youjiang metallogenic belt in southeast China, we obtained high-resolution aeromagnetic and gamma-ray spectrometry data covering an area of approximately 27,000 km<sup>2</sup>, which facilitated the conduct of litho-structural mapping. The total magnetic intensity, reduction to the pole, and directional derivative maps generated from the aeromagnetic data, efficiently identified concealed rocks and faults. Additionally, the total count, potassium, thorium to potassium ratio, and ternary maps generated from the airborne gamma-ray spectrometry data demonstrated advantages in distinguishing carbonate rocks from clastic rocks. They also provided more comprehensive geological information, refining the structural strike and location interpreted by the aeromagnetic data. The litho-structural map produced in this study significantly contributes to our understanding of the structures in the Nanpanjiang area and offers valuable guidance for successful mineral exploration endeavors. |
| first_indexed | 2024-03-09T16:35:02Z |
| format | Article |
| id | doaj.art-3a0bcf5d852044d2bd60aaf4753f2c9e |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-09T16:35:02Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-3a0bcf5d852044d2bd60aaf4753f2c9e2023-11-24T14:57:38ZengMDPI AGMinerals2075-163X2023-11-011311142410.3390/min13111424Application of High-Resolution Aeromagnetic and Gamma-ray Spectrometry Surveys for Litho-Structural Mapping in Southwest ChinaGuixiang Liao0Yongbo Li1Yongzai Xi2Ning Lu3Shan Wu4Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, ChinaInstitute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, ChinaInstitute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, ChinaInstitute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, ChinaInstitute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, ChinaAirborne geophysical surveys serve as an effective tool for litho-structural mapping, providing extensive and high-resolution underground information. They offer vital data support for the interpretation and analysis of lithologies and structures, complementing surface geological mapping. In the study area of the Nanpanjiang-Youjiang metallogenic belt in southeast China, we obtained high-resolution aeromagnetic and gamma-ray spectrometry data covering an area of approximately 27,000 km<sup>2</sup>, which facilitated the conduct of litho-structural mapping. The total magnetic intensity, reduction to the pole, and directional derivative maps generated from the aeromagnetic data, efficiently identified concealed rocks and faults. Additionally, the total count, potassium, thorium to potassium ratio, and ternary maps generated from the airborne gamma-ray spectrometry data demonstrated advantages in distinguishing carbonate rocks from clastic rocks. They also provided more comprehensive geological information, refining the structural strike and location interpreted by the aeromagnetic data. The litho-structural map produced in this study significantly contributes to our understanding of the structures in the Nanpanjiang area and offers valuable guidance for successful mineral exploration endeavors.https://www.mdpi.com/2075-163X/13/11/1424airborne geophysical surveyaeromagnetic interpretationgamma-ray spectrometry interpretationlithologies and structuresNanpanjiang area |
| spellingShingle | Guixiang Liao Yongbo Li Yongzai Xi Ning Lu Shan Wu Application of High-Resolution Aeromagnetic and Gamma-ray Spectrometry Surveys for Litho-Structural Mapping in Southwest China Minerals airborne geophysical survey aeromagnetic interpretation gamma-ray spectrometry interpretation lithologies and structures Nanpanjiang area |
| title | Application of High-Resolution Aeromagnetic and Gamma-ray Spectrometry Surveys for Litho-Structural Mapping in Southwest China |
| title_full | Application of High-Resolution Aeromagnetic and Gamma-ray Spectrometry Surveys for Litho-Structural Mapping in Southwest China |
| title_fullStr | Application of High-Resolution Aeromagnetic and Gamma-ray Spectrometry Surveys for Litho-Structural Mapping in Southwest China |
| title_full_unstemmed | Application of High-Resolution Aeromagnetic and Gamma-ray Spectrometry Surveys for Litho-Structural Mapping in Southwest China |
| title_short | Application of High-Resolution Aeromagnetic and Gamma-ray Spectrometry Surveys for Litho-Structural Mapping in Southwest China |
| title_sort | application of high resolution aeromagnetic and gamma ray spectrometry surveys for litho structural mapping in southwest china |
| topic | airborne geophysical survey aeromagnetic interpretation gamma-ray spectrometry interpretation lithologies and structures Nanpanjiang area |
| url | https://www.mdpi.com/2075-163X/13/11/1424 |
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