ISSN 1006-3021 CN11-3474/P
Published bimonthly started in 1979
东海外陆架晚第四纪沉积物的稀土元素组成及物源示踪
  
关键词:rare earth elements  Late Quaternary  source tracing  outer shelf of the East China Sea
基金项目:国家自然科学基金项目(编号: 41206053);国土资源大调查项目(编号: 1212010611301)
作者单位E-mail
蓝先洪 国土资源部海洋油气资源与环境地质重点实验室
青岛海洋地质研究所 
lanxh@qingdaonews.com 
张志珣 国土资源部海洋油气资源与环境地质重点实验室
青岛海洋地质研究所 
 
王中波 国土资源部海洋油气资源与环境地质重点实验室
青岛海洋地质研究所 
 
陈晓辉 国土资源部海洋油气资源与环境地质重点实验室
青岛海洋地质研究所 
 
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摘要:
Distribution of Rare Earth Elements in Late Quaternary Sediments on the Outer Shelf of the East China Sea and Their Source Tracing
      The sediment samples collected from Core SFK-1 in the depression area of Xihu on the outer shelf of the East China Sea were measured for rare earth elements (REE) by using ICP-MS with the purpose of studying the indicator significance of REE geochemical information for the stratigraphic division and provenance analysis of the outer shelf sediments in the East China Sea. According to the variation of REE content and ratio, the sediments from Core SFK-1 can be divided into eight geochemical layers, suggesting that geochemical characteristics of REE have good indicator significance for stratigraphic division. The results show that the sediments in Core SFK-1 were mainly derived from the Yangtze River and the Yellow River. The sediments above the depth of 28.00 m in upper Core SFK-I mainly belong to the Yangtze River source; the sediments between 28.00~47.20 m in middle Core SFK-1 was mainly derived from the Yellow River, and the sediments between 47.20 and 82.90 m at the bottom of Core SFK-1 was mainly derived from the Yangtze River. It is concluded that the Yangtze River has been playing a main role in the continental shelf of East China Sea since early Late Pleistocene and the Yellow River started to influence the continental shelf sedimentation of the East China Sea at the late stage of Late Pleistocene.
LAN Xian-hong,ZHANG Zhi-xun,WANG Zhong-bo,CHEN Xiao-hui.2014.Distribution of Rare Earth Elements in Late Quaternary Sediments on the Outer Shelf of the East China Sea and Their Source Tracing[J].Acta Geoscientica Sinica,35(3):305-313.
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