ISL OpenIR  > 青海盐湖研究所知识仓储
Boron isotopic fractionation in laboratory inorganic carbonate precipitation: evidence for the incorporation of B(OH)(3) into carbonate
Xiao YingKai1,2; Li HuaLing1,3; Liu WeiGuo4; Wang XiuFang1; Jiang ShaoYong5
2008-12-01
Source PublicationSCIENCE IN CHINA SERIES D-EARTH SCIENCES
Volume51Issue:12Pages:1776-1785
SubtypeArticle
AbstractA laboratory inorganic carbonate precipitation experiment at high pH of 8.96 to 9.34 was conducted, and the boron isotopic fractionations of the precipitated carbonate were measured. The data show that boron isotopic fractionation factors (alpha(carb-3)) between carbonate and B(OH)(3) in seawater range 0.937 and 0.965, with an average value of 0.953. Our results together with those reported by Sanyal and collaborators show that the alpha(carb-3) values between carbonate and B(OH)(3) in solution are not constant but are negatively correlated with the pH of seawater. The measured boron isotopic compositions of carbonate precipitation (delta 11B(carb)) do not exactly lie on the best-fit theoretical delta 11B(4)-pH curves and neither do they exactly parallel any theoretical delta 11B(4)-pH curves. Therefore, it is reasonable to argue that a changeable proportion of B(OH)(3) with pH of seawater should also be incorporated into carbonate except for the dominant incorporation of B(OH)(4) - in carbonate. Hence, in the reconstruction of the paleo-pH of seawater from boron isotopes in marine biogenic carbonates, the use of theoretical boron isotopic fractionation factor (alpha(4-3)) between B(OH)(4-) and B(OH)(3) is not suitable. Instead, an empirical equation should be established.
KeywordBoron Isotopic Fractionation Biogenic Carbonate b(Oh)(3) Incorporation
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordSYNTHETIC CALCIUM-CARBONATE ; PARTITION-FUNCTION RATIOS ; MOLECULAR-ORBITAL THEORY ; BORIC ACIDS ; PH CONTROL ; OCEAN PH ; SEAWATER ; EXCHANGE ; FORAMINIFERA ; PROXY
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000261176800012
Citation statistics
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/5847
Collection青海盐湖研究所知识仓储
Affiliation1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
2.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China
3.Nanjing Inst Geol & Mineral Resources, Nanjing 210016, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China
5.Nanjing Univ, Dept Earth Sci, State Key Lab Mineral Deposits Res, Nanjing 210093, Peoples R China
Recommended Citation
GB/T 7714
Xiao YingKai,Li HuaLing,Liu WeiGuo,et al. Boron isotopic fractionation in laboratory inorganic carbonate precipitation: evidence for the incorporation of B(OH)(3) into carbonate[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2008,51(12):1776-1785.
APA Xiao YingKai,Li HuaLing,Liu WeiGuo,Wang XiuFang,&Jiang ShaoYong.(2008).Boron isotopic fractionation in laboratory inorganic carbonate precipitation: evidence for the incorporation of B(OH)(3) into carbonate.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,51(12),1776-1785.
MLA Xiao YingKai,et al."Boron isotopic fractionation in laboratory inorganic carbonate precipitation: evidence for the incorporation of B(OH)(3) into carbonate".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 51.12(2008):1776-1785.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xiao YingKai]'s Articles
[Li HuaLing]'s Articles
[Liu WeiGuo]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xiao YingKai]'s Articles
[Li HuaLing]'s Articles
[Liu WeiGuo]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xiao YingKai]'s Articles
[Li HuaLing]'s Articles
[Liu WeiGuo]'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.