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Geochemical study of boron isotopes in the process of loess weathering
Zhao, ZQ; Liu, CQ; Xiao, YK; Lang, YC
2003-02-01
Source PublicationSCIENCE IN CHINA SERIES D-EARTH SCIENCES
ISSN1006-9313
Volume46Issue:2Pages:106-116
SubtypeArticle
AbstractIn this paper the boron contents and boron isotopic composition of acid-soluble phases in loess and paleosol samples are determined for the first time. The boron contents of acid-soluble phases in the Luochuan loess section (S-0-S-2) vary within the range of (0.8-2.7)x10(-6) and their delta(11)B values vary from -1.8parts per thousand. to +18.6parts per thousand, mostly within the range of 0-+10parts per thousand. The boron contents and delta(11)B values of paleosol layers are higher than those of loess layers, especially in the loess layer S-1. Varying chemical weathering intensity and loess adsorption capability are the main factors leading to the variations of boron contents and delta(11)B values of acid-soluble phases in the loess section. The variation of chemical weathering intensity in response to the variation of climatic conditions seems to be the main factor leading to the variations of boron contents and delta(11)B values of acid-soluble phases in the loess section.
KeywordLoess-paleosol Boron Isotopic Composition Chemical Weathering Adsorption Paleo-climate
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordCARBON-DIOXIDE CONCENTRATIONS ; IONIZATION MASS-SPECTROMETRY ; PAST OCEAN PH ; NORTH-ATLANTIC ; CHINA ; FRACTIONATION ; SYSTEMATICS ; SEDIMENTS ; SEQUENCE ; EXCHANGE
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000181268700002
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/2355
Collection青海盐湖研究所知识仓储
Affiliation1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
Recommended Citation
GB/T 7714
Zhao, ZQ,Liu, CQ,Xiao, YK,et al. Geochemical study of boron isotopes in the process of loess weathering[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2003,46(2):106-116.
APA Zhao, ZQ,Liu, CQ,Xiao, YK,&Lang, YC.(2003).Geochemical study of boron isotopes in the process of loess weathering.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,46(2),106-116.
MLA Zhao, ZQ,et al."Geochemical study of boron isotopes in the process of loess weathering".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 46.2(2003):106-116.
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