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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
发表期刊SCIENCE IN CHINA SERIES D-EARTH SCIENCES
ISSN1006-9313
卷号46期号:2页码:106-116
文章类型Article
摘要In 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.
关键词Loess-paleosol Boron Isotopic Composition Chemical Weathering Adsorption Paleo-climate
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]CARBON-DIOXIDE CONCENTRATIONS ; IONIZATION MASS-SPECTROMETRY ; PAST OCEAN PH ; NORTH-ATLANTIC ; CHINA ; FRACTIONATION ; SYSTEMATICS ; SEDIMENTS ; SEQUENCE ; EXCHANGE
收录类别SCI
语种英语
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000181268700002
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/2355
专题青海盐湖研究所知识仓储
作者单位1.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
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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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