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| 南海南部陆坡晚第四纪沉积物稀土元素及环境意义 | |
| 引用本文： | 付淑清,朱照宇,欧阳婷萍,邱燕.南海南部陆坡晚第四纪沉积物稀土元素及环境意义[J].热带地理,2010,30(1). |
| 作者姓名： | 付淑清 朱照宇 欧阳婷萍 邱燕 |
| 作者单位： | 1. 中国科学院广州地球化学研究所,边缘海地质重点实验室,广州,510640;广州地理研究所环境地质中心,广州,510070 2. 中国科学院广州地球化学研究所,边缘海地质重点实验室,广州,510640 3. 广州海洋地质调查局,广州,510760 |
| 基金项目： | 中科院边缘海地质重点实验室开放基金(MSGL08-07);;国家自然科学基金(40901013,40272077);;广东省科学院青年基金(qnjj200912) |
| 摘 要： | 采用电感耦合等离子质谱(ICP-MS)法,对南海南部86GC柱状沉积物样品的稀土元素(REE)含量进行测量,并对其地球化学特征进行系统分析。结果表明,自大约31kaBP以来,该海域的沉积物具有基本相同的物质来源,物源区的气候环境变化可能是影响沉积物中REE指标纵向变化的主要因素。各指标的综合分析显示,末次冰期南海南部海域的沉积物源区具有较强的化学风化作用,冰后期则相对减弱,这就意味着南海南部及周边地区末次冰期期间依然盛行热带气候,冰后期的气候环境则可能较为多变。另外,在柱状样深度分别为17cm和100cm处均记录了指标的突变,前者可能是8k事件在南海南部的记录,后者代表的事件还有待进一步研究。 |
| 关 键 词： | 南海南部 稀土元素 古环境 晚第四纪 |
Sedimentary Records of Rare Earth Elements from Southern South China Sea Continental Slope and Its Paleoclimatic Implications during Late Quaternary |
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| FU Shuqing,ZHU Zhaoyu,OUYANG Tingping,QIU Yan.Sedimentary Records of Rare Earth Elements from Southern South China Sea Continental Slope and Its Paleoclimatic Implications during Late Quaternary[J].Tropical Geography,2010,30(1). | |
| Authors: | FU Shuqing ZHU Zhaoyu OUYANG Tingping QIU Yan |
| Institution: | 1.Key Laboratory of Marginal Sea Geology;Guangzhou Institute of Geochemistry;Chinese Academy of Sciences;Guangzhou 510640;China;2.Guangzhou Institute of Geography;Guangzhou 510070;3.Guangzhou Marine Geological Survey;Guangzhou 510760;China |
| Abstract: | Rare earth elements (REEs) in 86GC core sediments from the southern South China Sea (SCS) were measured on an inductively coupled plasma mass spectrometry (ICP-MS). Results from this systematic investigation of the REES chemical characteristics show that the sediments around our studied area had the same main provenience during the Last 31 ka, and the climatic environment variations should be the main factor causing the vertical variations of REE indexes. Synthetically analysis potentially denote stronger c... |
| Keywords: | Southern South China Sea earth element paleoenvironment Late Quaternary |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |