Clay minerals in surface sediments of the Pearl River drainage basin and their contribution to the South China Sea
文献类型：期刊论文
| 作者 | Liu, ZF ; Colin, C ; Huang, W ; Chen, Z ; Trentesaux, A ; Chen, JF |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2007 |
| 卷号 | 52期号:8页码:1101-1111 |
| 关键词 | clay minerals surface sediments provenance East Asian monsoon Pearl River drainage basin |
| ISSN号 | 1001-6538 |
| 通讯作者 | lzhifei@mail.tongji.edu.cn |
| 中文摘要 | Clay minerals have played a significant role in the study of the East Asian monsoon evolution in the South China Sea by being able to track oceanic current variations and to reveal contemporaneous paleoclimatic changes prevailing in continental source areas. As one of the most important rivers inputting terrigenous matters to the northern South China Sea, the Pearl River was not previously paid attention to from the viewpoint of clay mineralogy. This paper presents a detailed study on clay minerals in surface sediments collected from the Pearl River drainage basin (including all three main channels, various branches, and the Lingdingyang in the estuary) by using the X-ray diffraction (XRD) method. The results indicate that the clay mineral assemblage consists dominantly of kaolinite (35%-65%), lesser abundance of chlorite (20%-35%) and illite (12%-42%), and very scare smectite occurrences (generally <5%). -1 heir respective distribution does not present any obvious difference throughout the Pearl River drainage basin. However, downstream the Pearl River to the northern South China Sea, the clay mineral assemblage varies significantly: kaolinite decreases gradually, smectite and illite increase gradually. Additionally, illite chemistry index steps down and illite crystallinity steps up. These variations indicate the contribution of major kaolinite, lesser illite and chlorite, and very scarce smectite to the northern South China Sea from the Pearl River drainage basin. The maximum contribution of clay minerals from the Pearl River is 72% to the northern margin and only 15% to the northern slope of the South China Sea. In both glacials and interglacials, kaolinite indicates that the ability of mechanical erosion occurred in the Pearl River drainage basin. |
| 学科主题 | Multidisciplinary Sciences |
| 收录类别 | SCI |
| 原文出处 | SCIENCE CHINA PRESS |
| WOS记录号 | WOS:000247163200013 |
| 公开日期 | 2011-07-03 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/4486]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, ZF,Colin, C,Huang, W,et al. Clay minerals in surface sediments of the Pearl River drainage basin and their contribution to the South China Sea[J]. CHINESE SCIENCE BULLETIN,2007,52(8):1101-1111. |
| APA | Liu, ZF,Colin, C,Huang, W,Chen, Z,Trentesaux, A,&Chen, JF.(2007).Clay minerals in surface sediments of the Pearl River drainage basin and their contribution to the South China Sea.CHINESE SCIENCE BULLETIN,52(8),1101-1111. |
| MLA | Liu, ZF,et al."Clay minerals in surface sediments of the Pearl River drainage basin and their contribution to the South China Sea".CHINESE SCIENCE BULLETIN 52.8(2007):1101-1111. |
入库方式： OAI收割
来源：南海海洋研究所
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