| Geological records of marine environmental changes in the southern Okinawa Trough | |
| Xiang, R; Li, TA; Yang, ZS; Li, AC; Jiang, FQ; Yan, J; Cao, QY | |
| 2003 | |
| 发表期刊 | CHINESE SCIENCE BULLETIN
 |
| ISSN | 1001-6538 |
| 卷号 | 48期号:2页码:194-199 |
| 文章类型 | Article |
| 摘要 | Indexes of sediment grain size, sedimentation rates, geochemical composition, heavy minerals, benthic foraminiferal fauna, indicator species of the Kuroshio Current, paleo-SST and carbonate dissolution of core E017 conformably suggest a great marine environmental change occurring at about 10.1-9.2 cal. kaBP in the southern Okinawa Trough, which may correspond to the strengthening of the Kuroshio Warm Current and re-entering the Okinawa Trough through the sea area off northeast Taiwan. The invasion of Kuroshio current has experienced a process of gradual strengthening and then weakening, and its intensity became more fluctuation during the last 5000 years. Compared to the transition of sediment grain size, geochemical composition and heavy minerals, the foraminiferal faunas show a 900-year lag, which may indicate that the invasion of Kuroshio Current and the consequent sea surface and deep-water environmental changes is a gradual process, and fauna has an obvious lag compared to environment altering. The carbonate dissolution of the Okinawa Trough has had an apparent strengthening since 9.2 cal. kaBP, and reached a maximum in the late 3000 years, which may be caused by the deep-water environmental changes due to the invasion of Kuroshio Current.; Indexes of sediment grain size, sedimentation rates, geochemical composition, heavy minerals, benthic foraminiferal fauna, indicator species of the Kuroshio Current, paleo-SST and carbonate dissolution of core E017 conformably suggest a great marine environmental change occurring at about 10.1-9.2 cal. kaBP in the southern Okinawa Trough, which may correspond to the strengthening of the Kuroshio Warm Current and re-entering the Okinawa Trough through the sea area off northeast Taiwan. The invasion of Kuroshio current has experienced a process of gradual strengthening and then weakening, and its intensity became more fluctuation during the last 5000 years. Compared to the transition of sediment grain size, geochemical composition and heavy minerals, the foraminiferal faunas show a 900-year lag, which may indicate that the invasion of Kuroshio Current and the consequent sea surface and deep-water environmental changes is a gradual process, and fauna has an obvious lag compared to environment altering. The carbonate dissolution of the Okinawa Trough has had an apparent strengthening since 9.2 cal. kaBP, and reached a maximum in the late 3000 years, which may be caused by the deep-water environmental changes due to the invasion of Kuroshio Current. |
| 关键词 | Southern Okinawa Rough Foraminifera Sedimentation Rate Kuroshio Current Carbonate Dissolution |
| 学科领域 | Multidisciplinary Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000181243500020 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/3798 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Ocean Univ Qingdao, Coll Geosci, Qingdao 266003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiang, R,Li, TA,Yang, ZS,et al. Geological records of marine environmental changes in the southern Okinawa Trough[J]. CHINESE SCIENCE BULLETIN,2003,48(2):194-199. |
| APA | Xiang, R.,Li, TA.,Yang, ZS.,Li, AC.,Jiang, FQ.,...&Cao, QY.(2003).Geological records of marine environmental changes in the southern Okinawa Trough.CHINESE SCIENCE BULLETIN,48(2),194-199. |
| MLA | Xiang, R,et al."Geological records of marine environmental changes in the southern Okinawa Trough".CHINESE SCIENCE BULLETIN 48.2(2003):194-199. |
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