| 晚上新世以来南海北部深部水团演化 |
| |
| 引用本文： | 黄宝琦,翦知湣,赵泉鸿,汪品先.晚上新世以来南海北部深部水团演化[J].地球科学,2005,30(5):529-533. |
| |
| 作者姓名： | 黄宝琦 翦知湣 赵泉鸿 汪品先 |
| |
| 作者单位： | 1.北京大学地球与空间科学学院，北京 100871 |
| |
| 基金项目： | 国家自然科学基金;国家重点实验室基金 |
| |
| 摘 要： | 对南海北部大洋钻探184航次1146站晚上新世以来底栖有孔虫属种组合的Q型因子分析, 发现底栖有孔虫组合以2.1Ma, 1.5Ma和0.7Ma为界, 分为Stilostomella-Globocassidulina subglobosa-Nodogenerina, Bulimina alazanensis, Uvigerina perigrina和Melonis barleeanus-Globobulimina affinis-Bulimina aculeata4个组合.结合底层水溶解氧含量和浮游、底栖有孔虫碳同位素分析, 认为底栖有孔虫组合的变化是南海底层水影响所致, 以及南海北部表层和底层海水营养盐含量变化的共同结果.
|
| 关 键 词： | 晚上新世 南海北部 深部水团 底栖有孔虫组合 |
| 文章编号： | 1000-2383（2005）05-0529-05 |
| 收稿时间： | 06 29 2005 12:00AM |
| 修稿时间： | 2005-06-29 |
Variations in Deep-Water Masses from the Northern South China Sea since the Late Pliocene |
| |
| HUANG Bao-qi,JIAN Zhi-min,ZHAO Quan-hong,WANG Pin-Xian.Variations in Deep-Water Masses from the Northern South China Sea since the Late Pliocene[J].Earth Science-Journal of China University of Geosciences,2005,30(5):529-533. |
| |
| Authors: | HUANG Bao-qi JIAN Zhi-min ZHAO Quan-hong WANG Pin-Xian |
| |
| Abstract: | Through the Q-mode factor analysis of benthic foraminifera from ODP Site 1146 in the northern South China Sea since 4 Ma, we identified four assemblages of benthic foraminifera. These are the Stilostomella-Globocassidulina subglobosa-Nodogenerina assemblage, the Bulimina alazanensis assemblage, the Uvigerina perigrina assemblage, and the Melonis barleeanus-Globobulimina affinis-Bulimina aculeata assemblage, divided respectively at 2.1 Ma, 1.5 Ma and 0.7 Ma. Combined with the results of the benthic foraminiferal oxygen index (BFOI) and carbon isotopes of planktonic and benthic foraminifera, we consider that the variations in the benthic foraminiferal assemblages in the area were mainly controlled by nutrient changes in surface and bottom waters. |
| |
| Keywords: | Late Pliocene~ northern South China Sea~ deep water mass assemblages of benthic foraminifera |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地球科学》浏览原始摘要信息 |
| 点击此处可从《地球科学》下载免费的PDF全文 |
|
