中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Analysis of carbon isotopes in airborne carbonate and implications for aeolian sources

文献类型:期刊论文

作者Cao, JJ; Wang, YQ; Zhang, XY; Lee, SC; Ho, KF; Cao, YN; Li, Y
刊名CHINESE SCIENCE BULLETIN
出版日期2004-08
卷号49期号:15页码:1637-1641
关键词aerosol carbonate carbon isotopes dust provenance
DOI10.1360/03wd0375
文献子类Article
英文摘要Methods were developed to determine the mass ratios of carbon isotopes in trace amounts of aerosol carbonate. A Finnigan MAT 252 mass spectrometer fitted with an on-line Kiel device was to determine the C-13/C-12 ratio in CO2 produced from the carbonate. A study using these methods was conducted to characterize the carbonate carbon isotopes in aerosol samples collected in Xi'an on dusty and normal days during March and April 2002. Results of the study demonstrate that insights into the origin of the dust can be deduced from its isotopic composition. That is, the delta(13)C of carbonate for dust storm samples ranged from -1.4parts per thousand to -4.2parts per thousand, and this is consistent with sandy materials in dust source regions upwind. In contrast, for non-dusty days delta(13)C ranged from -7.5% to -9.3parts per thousand, which is more similar to fine particles emitted from local surface soils. Comparisons of dust storm aerosols with surface soils from source regions and with aerosol samples collected downwind indicate that the delta(13)C values did not change appreciably during long-range transport. Therefore, carbon isotopes have the potential for distinguishing among source materials, and this approach provides a powerful new tool for identifying dust provenance.
学科主题Science & Technology - Other Topics
WOS关键词AEROSOL ; CHINA
WOS研究方向Multidisciplinary Sciences
语种英语
WOS记录号WOS:000224314400015
出版者SCIENCE PRESS
源URL[http://ir.ieecas.cn/handle/361006/12046]  
专题黄土与第四纪地质国家重点实验室(1985-2004)
推荐引用方式
GB/T 7714
Cao, JJ,Wang, YQ,Zhang, XY,et al. Analysis of carbon isotopes in airborne carbonate and implications for aeolian sources[J]. CHINESE SCIENCE BULLETIN,2004,49(15):1637-1641.
APA Cao, JJ.,Wang, YQ.,Zhang, XY.,Lee, SC.,Ho, KF.,...&Li, Y.(2004).Analysis of carbon isotopes in airborne carbonate and implications for aeolian sources.CHINESE SCIENCE BULLETIN,49(15),1637-1641.
MLA Cao, JJ,et al."Analysis of carbon isotopes in airborne carbonate and implications for aeolian sources".CHINESE SCIENCE BULLETIN 49.15(2004):1637-1641.

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来源:地球环境研究所

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