查詢結果分析
相關文獻
- The Distributions of Calcareous Nannofossils and Grain Size in the Surface Sediments of the East China Sea and Their Relationship to the Current Pattern
- Variations of Calcium Carbonate, Organic Carbon and Their Isotopic Compositions in Surface Sediments of the East China Sea
- Structural Control of the Taitung Canyon in the Huatung Basin East of Taiwan
- 東海岸漁業轉型--賞鯨休閒漁業創新局
- The Role of the Taiwan Strait in an Ecological Model in the East China Sea
- 斯地降臨!﹖:東海神話暨其早期建築設計論述(1950年代末至1960年代中)
- 地景對森林鳥類群聚組成影響初探
- 黑潮對綠島早期涉外關係的影響
- 淺談漁船東海遭罰與因應
- 東海大學勞作教育制度
頁籤選單縮合
題名 | The Distributions of Calcareous Nannofossils and Grain Size in the Surface Sediments of the East China Sea and Their Relationship to the Current Pattern=東海表層沈積物中的鈣質超微化石和顆粒分佈與洋流型態之關係 |
---|---|
作者姓名(中文) | 陳民本; 黃兆愷; | 書刊名 | Terrestrial, Atmospheric and Oceanic Sciences |
卷期 | 6:1 1995.03[民84.03] |
頁次 | 頁129-150 |
分類號 | 351.983 |
關鍵詞 | 東海; 表層沈積物; 鈣質超微化石; 顆粒分佈; 洋流型態; East China sea; Surface sediment; Nannofossil; Grain size; Current path; |
語文 | 英文(English) |
英文摘要 | Nannofossil assemblages, carbonate content and grain size distributions were analyzed in 46 samples of surface sediments collected in the middle and outer shelf of the East China Sea. Thirty three indigenous taxa were identified. Emiliania huxleyi and Gephyrocapsa oceanica were the two dominant calcareous nannoplankton species. The former was derived from both the China Coastal Current and the Kuroshio Current. The latter originated mainly from the Japan longshore current. Sediments containing high carbonate content (>30%) were deposited along the shelf break of the East China Sea. About 80% of the total carbonate material was composed of shell fragments and foraminiferal tests. Nannofossils were found mainly in the south of the loop current off the Chagjiang River, the western tip of the Japan longshore current and in the western flank of the Okinawa Trough. The grain size distribution pattern can be divided into four types: a unimodal pattern in the fine grain material (about 10 μ m ) which is composed mainly of loess; a unimodal pattern occurrring in the coarse grain size (about 200-300 μ m) which is composed mainly of foraminifera and shell fragments; a bimodal pattern with a higher concentration of fine sediment, and a bimodal pattern with less fine-grained sediment. The bimodal sediments are distributed between the two single modes. The finer carbonatefree sediment with bimodal size distribution is derived mainly from the Changjiang River. The coarse fractions are composed of terrigenous materials derived from either mainland China or from Taiwan. From the factor analysis of ten selected nannofossil species and groups, the sediment transportation path of each current can be deduced from the factor loading contours. In the middle and outer shelf of the East China Sea, seven current tracks, including the main Kuroshio Current, a branch of the Kuroshio Current, the Taiwan Current, the loop current from Changjian, the China Coastal Current, the Tsushima Current and the longshore current from Japan are recognized. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。