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| DOI | 10.3390/jmse12040615 |
| The Sediments in the Beibu Gulf Reveal Dramatic Paleoenvironmental Changes and Climate Events over the Past ∼20,000 Years | |
| 发表日期 | 2024 |
| EISSN | 2077-1312 |
| 起始页码 | 12 |
| 结束页码 | 4 |
| 卷号 | 12期号:4 |
| 英文摘要 | The geochemical characteristics of a 2.1 m BBW25 core, collected from the Beibu Gulf, have been investigated in terms of the major and trace elements, organic matter, and CaCO3 and AMS C-14 dating by XRF, ICP-OES, ICP-MS, and more. We have found through previous research that there are issues with unclear delineation of sedimentary evolution environments and inexact responses between chemical weathering intensity and major paleoclimate events in the Beibu Gulf. The AMS C-14 dating results indicate that the sedimentary age at the bottom was 19.24 ky b.p. CaCO3, delta C-13, C/N, and Sr/Ba indexes show a sedimentary environment change from terrestrial to marine environments and a jump of similar to 4000 years in continent-ocean changes. The evolution of the sedimentary environment of Beibu Gulf was divided into three environments and five sub-environments. The changes in chemical weathering intensity indicators recorded by the CIX and the Fe/Al ratio respond well to the East Asian monsoon cycle, the meltwater events, and the alternation of cold and warm events. This study explains the chemical weathering intensity and sedimentary environment in the BBW25 core by geochemical characteristics and further reveals the paleoenvironmental characteristics and possible driving mechanisms over the past similar to 20,000 years. |
| 英文关键词 | Beibu Gulf; core sediment; geochemical characteristics; sedimentary environment; climate change |
| 语种 | 英语 |
| WOS研究方向 | Engineering ; Oceanography |
| WOS类目 | Engineering, Marine ; Engineering, Ocean ; Oceanography |
| WOS记录号 | WOS:001211074000001 |
| 来源期刊 | JOURNAL OF MARINE SCIENCE AND ENGINEERING
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/298144 |
| 作者单位 | Guangxi University; China Geological Survey; Nanjing Center, China Geological Survey; Guangxi Academy of Sciences |
| 推荐引用方式 GB/T 7714 | . The Sediments in the Beibu Gulf Reveal Dramatic Paleoenvironmental Changes and Climate Events over the Past ∼20,000 Years[J],2024,12(4). |
| APA | (2024).The Sediments in the Beibu Gulf Reveal Dramatic Paleoenvironmental Changes and Climate Events over the Past ∼20,000 Years.JOURNAL OF MARINE SCIENCE AND ENGINEERING,12(4). |
| MLA | "The Sediments in the Beibu Gulf Reveal Dramatic Paleoenvironmental Changes and Climate Events over the Past ∼20,000 Years".JOURNAL OF MARINE SCIENCE AND ENGINEERING 12.4(2024). |
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