| 南海北部陆坡晚更新世末期硅藻及其古环境意义 |
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| 引用本文： | 黄玥, 冉莉华, 蒋辉. 南海北部陆坡晚更新世末期硅藻及其古环境意义[J]. 海洋地质与第四纪地质, 2006, 26(4): 7-13. |
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| 作者姓名： | 黄玥 冉莉华 蒋辉 |
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| 作者单位： | 华东师范大学 地理系, 上海 200062 |
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| 基金项目： | 国家自然科学基金项目(40276013) |
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| 摘 要： | 对南海北部陆坡17940孔晚更新世末期沉积物硅藻的研究表明,该时期硅藻组合以亚热带浮游性种类为主。硅藻组合中优势种和特征种含量的变化,指示了晚更新世末期南海海洋环境较现代封闭、海平面较现代为低的古地理环境。同时,根据硅藻组合中特征种的变化,也可以清楚地界定出波令-阿勒罗德期和新仙女木事件,但是全新世的底界并不明显。
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| 关 键 词： | 硅藻 古地理环境 晚更新世末期 南海 |
| 文章编号： | 0256-1492(2006)04-0007-07 |
| 收稿时间： | 2005-12-02 |
| 修稿时间： | 2005-12-02 |
DIATOM FROM THE SOUTH CHINA SEA DURING THE LATEST PLEISTOCENE AND THEIR PALEOENVIRONMENTAL SIGNIFICANCE |
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| HUANG Yue, RAN Li-hua, JIANG Hui. DIATOM FROM THE SOUTH CHINA SEA DURING THE LATEST PLEISTOCENE AND THEIR PALEOENVIRONMENTAL SIGNIFICANCE[J]. Marine Geology & Quaternary Geology, 2006, 26(4): 7-13. |
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| Authors: | HUANG Yue RAN Li-hua JIANG Hui |
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| Affiliation: | Department of Geography, East China Normal University, Shanghai 200062, China |
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| Abstract: | Diatom study on core 17940 from the northern slope of the South China Sea (SCS) reveals that subtropical planktonic species are the most important components in the diatom assemblages during the latest Pleistocene. The changes in the diatom assemblages indicate that the SCS at that time was more closed and the sea level was lower than at present. Meanwhile, the Bølling-Allerød wet phase and the cold and dry Younger Dryas event were recorded based on changes in some characteristic species. However, the boundary between Younger Dryas and Holocene in diatom record is not clear. |
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| Keywords: | diatom paleoenvironment the late Pleistocene the South China Sea |
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