Geochemical characteristics and provenance of the detrital sediments in the junction area of Yinggehai and Qiongdongnan basins, South China Sea
Abstract Together, the Yinggehai and Qiongdongnan basins have received a large amount of terrigenous sediments, but the provenance evolution of Cenozoic sediments in the two basins remains disputable. Combined with previous studies in the Yinggehai and Qiongdongnan basins, the elemental geochemistry...
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| Format: | Article |
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Nature Portfolio
2023-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-28778-8 |
| _version_ | 1811171756212224000 |
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| author | Fulin Meng Huajun Gan Hua Wang Si Chen Yin Gong Qiyang Zhang |
| author_facet | Fulin Meng Huajun Gan Hua Wang Si Chen Yin Gong Qiyang Zhang |
| author_sort | Fulin Meng |
| collection | DOAJ |
| description | Abstract Together, the Yinggehai and Qiongdongnan basins have received a large amount of terrigenous sediments, but the provenance evolution of Cenozoic sediments in the two basins remains disputable. Combined with previous studies in the Yinggehai and Qiongdongnan basins, the elemental geochemistry of Oligocene to Pliocene sediment samples in the junction area of the two basins were analyzed to explore the tectonic implications, parent rock characteristics, and provenance evolution of the two basins during the Cenozoic. The results reveal that all the sediment samples were derived from continental island arc to passive continental margin settings. The light REE enrichment and stable content of heavy REE with large negative Eu anomalies indicate that they were probably derived from Hainan Island. The reconstructed provenance evolution model showed that the Red River Source (RRS) provided sedimentary materials for the Central Depression of Yinggehai Basin from the Oligocene to the Pliocene, and Hainan Island Source (HIS) was also one of the sources for sediments deposited in the Central Depression of Yinggehai Basin during the Miocene. However, most of the sediments preserved in the Yingdong Slope and Qiongdongnan Basin were derived from the HIS from the Oligocene to the Pliocene, and sediments deposited in the Yingdong Slope were also derived from the RRS during the Miocene. Furthermore, the junction area of the two basins had a mixed source of the RRS and HIS during the Cenozoic. |
| first_indexed | 2024-04-10T17:20:27Z |
| format | Article |
| id | doaj.art-55a5cc62c3464b86913bca07669f7d4a |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-10T17:20:27Z |
| publishDate | 2023-01-01 |
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| series | Scientific Reports |
| spelling | doaj.art-55a5cc62c3464b86913bca07669f7d4a2023-02-05T12:09:02ZengNature PortfolioScientific Reports2045-23222023-01-0113111510.1038/s41598-023-28778-8Geochemical characteristics and provenance of the detrital sediments in the junction area of Yinggehai and Qiongdongnan basins, South China SeaFulin Meng0Huajun Gan1Hua Wang2Si Chen3Yin Gong4Qiyang Zhang5Key Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of EducationKey Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of EducationKey Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of EducationKey Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of EducationSchool of Earth Resources, China University of GeosciencesKey Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of EducationAbstract Together, the Yinggehai and Qiongdongnan basins have received a large amount of terrigenous sediments, but the provenance evolution of Cenozoic sediments in the two basins remains disputable. Combined with previous studies in the Yinggehai and Qiongdongnan basins, the elemental geochemistry of Oligocene to Pliocene sediment samples in the junction area of the two basins were analyzed to explore the tectonic implications, parent rock characteristics, and provenance evolution of the two basins during the Cenozoic. The results reveal that all the sediment samples were derived from continental island arc to passive continental margin settings. The light REE enrichment and stable content of heavy REE with large negative Eu anomalies indicate that they were probably derived from Hainan Island. The reconstructed provenance evolution model showed that the Red River Source (RRS) provided sedimentary materials for the Central Depression of Yinggehai Basin from the Oligocene to the Pliocene, and Hainan Island Source (HIS) was also one of the sources for sediments deposited in the Central Depression of Yinggehai Basin during the Miocene. However, most of the sediments preserved in the Yingdong Slope and Qiongdongnan Basin were derived from the HIS from the Oligocene to the Pliocene, and sediments deposited in the Yingdong Slope were also derived from the RRS during the Miocene. Furthermore, the junction area of the two basins had a mixed source of the RRS and HIS during the Cenozoic.https://doi.org/10.1038/s41598-023-28778-8 |
| spellingShingle | Fulin Meng Huajun Gan Hua Wang Si Chen Yin Gong Qiyang Zhang Geochemical characteristics and provenance of the detrital sediments in the junction area of Yinggehai and Qiongdongnan basins, South China Sea Scientific Reports |
| title | Geochemical characteristics and provenance of the detrital sediments in the junction area of Yinggehai and Qiongdongnan basins, South China Sea |
| title_full | Geochemical characteristics and provenance of the detrital sediments in the junction area of Yinggehai and Qiongdongnan basins, South China Sea |
| title_fullStr | Geochemical characteristics and provenance of the detrital sediments in the junction area of Yinggehai and Qiongdongnan basins, South China Sea |
| title_full_unstemmed | Geochemical characteristics and provenance of the detrital sediments in the junction area of Yinggehai and Qiongdongnan basins, South China Sea |
| title_short | Geochemical characteristics and provenance of the detrital sediments in the junction area of Yinggehai and Qiongdongnan basins, South China Sea |
| title_sort | geochemical characteristics and provenance of the detrital sediments in the junction area of yinggehai and qiongdongnan basins south china sea |
| url | https://doi.org/10.1038/s41598-023-28778-8 |
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