查詢結果分析
相關文獻
- 沖繩海槽沉積物岩心MD012404顯示之近十萬年古海洋
- 黑潮對綠島早期涉外關係的影響
- Distribution of Coccolithophorids and Coccoliths in Surface Ocean off Northeastern Taiwan
- 「黑潮與東海陸棚交換過程研究(KEEP-Ⅲ)」總結報告
- 臺灣四周之海底地形
- 黑潮與東海陸棚交換過程
- Exploring Quaternary Variability of the East Asia Monsoon, Kuroshio Current, and Western Pacific Warm Pool Systems: High-Resolution Investigations of Paleoceanography from the IMAGES Ⅲ (MD106)-IPHIS Cruise
- Distribution of Summer Diatom Assemblages in and Around a Local Upwelling in the East China Sea Northeast of Taiwan
- Daily Growth and Length Distribution of Larval Japanese Anchovy (Engraulis Japonica) in the Neritic Waters Off Northeastern Taiwan
- Light Effects on Phytoplankton Photosynthetic Performance in the Southern East China Sea North of Taiwan
頁籤選單縮合
題 名 | 沖繩海槽沉積物岩心MD012404顯示之近十萬年古海洋=The Last 100,000 Years Paleoceanographic Records of Core MD012404 from the Okinawa Trough |
---|---|
作 者 | 張詠斌; 翁海馨; 陳明德; | 書刊名 | 經濟部中央地質調查所彙刊 |
卷 期 | 22 2009.12[民98.12] |
頁 次 | 頁125-168 |
分類號 | 351.9 |
關鍵詞 | 東海; 沖繩海槽; 黑潮; 東亞季風; East China sea; Okinawa trough; Kuroshio; East Asian monsoon; |
語 文 | 中文(Chinese) |
英文摘要 | Several high-resolution proxy indexes are established for indicating the paleoclimatic and paleoenvironmental variations of the East China Sea (ECS) from sediment samples of core MD012404 drilled in the Okinawa Trough (OT). Records of microfossil assemblages from foraminifera and diatoms inferred that influences of the Kuroshio in the OT might start at approximately 50-60 thousand years ago. Accompanied with a tectonic event of the Yonaguni Depression formed in this period, a passage might have been opened and facilitated Kuroshio drainage to enter the OT. In the period of the last glacial maximum, a lowering of the global sea level and/or global cooling would reduce the flow volume or restrict the Kuroshio’s drainage into the OT. The Kusoshio was intruded into the OT at least at ~16 thousand years ago which was encouraged by a gradual rising of the global sea level. Total organic components (TOC) of sediments from the OT might indicate the surface productivity of the ECS. Co-varied patterns of the TOC data and precipitation records on land revealed that the increased production of the ECS might indicate an enhanced East Asian summer monsoon. Warm and humid climatic conditions on land would increase the fresh water output to the ECS and then encourage the export and/or upwelling of nutrients to rise to the surface production. Results of this research point out that environmental changes in the ECS are effected by global changes, and the OT is a good study region to monitor the variations in the earth’s climate system. |
本系統中英文摘要資訊取自各篇刊載內容。