Experimental study on the fractionation of yttrium from holmium during the coprecipitation with calcium carbonates in seawater solutions

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	Experimental study on the fractionation of yttrium from holmium during the coprecipitation with calcium carbonates in seawater solutions
	Qu, Chengli1,2,3 ; Liu, Gang 1,3; Zhao, Yongfang 1,3
发表期刊	GEOCHEMICAL JOURNAL
	2009
卷号	43 期号:6 页码:403-414
关键词	Partitioning Fractionation Calcium Carbonates Seawater Y/ho Ratios Covalency
英文摘要	The partitioning of Y and Ho between CaCO3 (calcite and aragonite respectively) and seawater was experimentally investigated at 25 degrees C and I atm. Both Y and Ho were observed to be strongly partitioned into the overgrowths of calcite or aragonite. Their partition coefficients, D-Y and D-Ho, were determined to be similar to 520-1400 and similar to 700-1900 in calcite, similar to 1200-2400 and similar to 2400-4300 in aragonite, respectively. Y fractionates from Ho during the coprecipitation with either calcite or aragonite. Within our experimental conditions, the fractionation factor, k = D-Y/D-Ho, was determined to be similar to 0.62-0.77 in calcite and similar to 0.50-0.57 in aragonite, respectively. The aqueous complexation of Y and Ho, which is a function of solution chemistry, probably plays an important role in both the partitioning and the fractionation. Further analyses suggest that the difference in covalency between Y and Ho associated with changes in their coordination environments is the determinant factor to the Y-Ho fractionation in the H2CO3-CaCO3 System.
文章类型	Article
收录类别	SCI
语种	英语
关键词[WOS]	RARE-EARTH-ELEMENTS ; TRACE-ELEMENTS ; AQUEOUS-SOLUTION ; MODERN CORAL ; GEOCHEMISTRY ; REE ; LIMESTONES ; ARAGONITE ; BEHAVIOR ; OCEAN
研究领域[WOS]	Geochemistry & Geophysics
WOS记录号	WOS:000273869600002
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/9224
专题	支撑部门
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Yantai Inst Costal Zone Res Sustainable Dev, Yantai 264003, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100041, Peoples R China
推荐引用方式 GB/T 7714	Qu, Chengli,Liu, Gang,Zhao, Yongfang. Experimental study on the fractionation of yttrium from holmium during the coprecipitation with calcium carbonates in seawater solutions[J]. GEOCHEMICAL JOURNAL,2009,43(6):403-414.
APA	Qu, Chengli,Liu, Gang,&Zhao, Yongfang.(2009).Experimental study on the fractionation of yttrium from holmium during the coprecipitation with calcium carbonates in seawater solutions.GEOCHEMICAL JOURNAL,43(6),403-414.
MLA	Qu, Chengli,et al."Experimental study on the fractionation of yttrium from holmium during the coprecipitation with calcium carbonates in seawater solutions".GEOCHEMICAL JOURNAL 43.6(2009):403-414.