IEECAS OpenIR  > 加速器质谱中心
Boron isotope fractionation during brucite deposition from artificial seawater
Xiao, J (Xiao, J.)[1]; Xiao, YK (Xiao, Y. K.)[2,3]; Liu, CQ (Liu, C. Q.)[3]; Jin, ZD (Jin, Z. D.)[1]
2011
Source PublicationCLIMATE OF THE PAST
Volume7Issue:3Pages:693-706
Subtype期刊论文
Abstract

Experiments involving boron incorporation into brucite (Mg(OH)(2)) from magnesium-free artificial seawater with pH values ranging from 9.5 to 13.0 were carried out to better understand the incorporation behavior of boron into brucite and the influence of it on Mg/Ca-SST proxy and delta(11)B-pH proxy. The results show that both the concentration of boron in deposited brucite ([B](d)) and its boron partition coefficient (K(d)) between deposited brucite and final seawater are controlled by the pH of the solution. The incorporation capacity of boron into brucite is almost the same as that into corals, but much stronger than that into oxides and clay minerals. The isotopic compositions of boron in deposited brucite (delta(11)B(d)) are higher than those in the associated artificial seawater (delta(11)B(isw)) with fractionation factors ranging between 1.0177 and 1.0569, resulting from the preferential incorporation of B(OH)(3) into brucite. Both boron adsorptions onto brucite and the precipitation reaction of H(3)BO(3) with brucite exist during deposition of brucite from artificial seawater. The simultaneous occurrence of both processes determines the boron concentration and isotopic fractionation of brucite. The isotopic fractionation behaviors and mechanisms of boron incorporated into brucite are different from those into corals. The existence of brucite in corals can affect the delta(11)B and Mg/Ca in corals and influences the Mg/Ca-SST proxy and delta(11)B-pH proxy negatively. The relationship between delta(11)B and Mg/Ca in corals can be used to judge the existence of brucite in corals, which should provide a reliable method for better use of delta(11)B and Mg/Ca in corals to reconstruct paleo-marine environment.

DOI10.5194/cp-7-693-2011
Indexed BySCI
Language英语
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10319
Collection加速器质谱中心
Corresponding AuthorXiao, YK (Xiao, Y. K.)[2,3]
Affiliation1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences,Xi’an, 710075, China;
2.Qinghai Institute of Salk Lakes, Chinese Academy of Sciences, Xining, Qinghai, 810008, China;
3.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences,Guiyang, 550002, China
Recommended Citation
GB/T 7714
Xiao, J ,Xiao, YK ,Liu, CQ ,et al. Boron isotope fractionation during brucite deposition from artificial seawater[J]. CLIMATE OF THE PAST,2011,7(3):693-706.
APA Xiao, J ,Xiao, YK ,Liu, CQ ,&Jin, ZD .(2011).Boron isotope fractionation during brucite deposition from artificial seawater.CLIMATE OF THE PAST,7(3),693-706.
MLA Xiao, J ,et al."Boron isotope fractionation during brucite deposition from artificial seawater".CLIMATE OF THE PAST 7.3(2011):693-706.
Files in This Item:
File Name/Size DocType Version Access License
Boron isotope fracti(1317KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xiao, J (Xiao, J.)[1]]'s Articles
[Xiao, YK (Xiao, Y. K.)[2,3]]'s Articles
[Liu, CQ (Liu, C. Q.)[3]]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xiao, J (Xiao, J.)[1]]'s Articles
[Xiao, YK (Xiao, Y. K.)[2,3]]'s Articles
[Liu, CQ (Liu, C. Q.)[3]]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xiao, J (Xiao, J.)[1]]'s Articles
[Xiao, YK (Xiao, Y. K.)[2,3]]'s Articles
[Liu, CQ (Liu, C. Q.)[3]]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.