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CHEMICAL-SPECIES OF IRIDIUM AND OTHER TRACE-ELEMENTS AT K-T BOUNDARY CLAY LAYER, STEVNS KLINT, DENMARK, AND ITS IMPLICATION
Chai ZF(柴之芳); Kong P(孔屏); Mao XY(毛雪瑛); Ma SL(马淑兰); Zhou YQ(周瑶琪); Ma JG(马建国); CHAI, ZF; KONG, P; MAO, XY; MA, SL; ZHOU, YQ; MA, JG
1991
发表期刊SCIENCE IN CHINA SERIES B-CHEMISTRY
卷号34期号:12页码:1492-1500
文章类型Article
摘要The chemical species of anomalous Ir in the Fish Clay K-T boundary at Stevns Klint, Denmark, was studied by using a newly-developed chemical stepwise dissolution procedure and neutron activation analysis. The experimental results indicate that the anomalous Ir mostly exists in the acid-insoluble residue phase. The Ir pattern of the K-T boundary resembles that of the Ningqiang carbonaceous chondrite, while remarkably different from those of the ultrabasic rock and volcanic lava. Thus, we deduce that the Ir anomaly at K-T boundary is mainly extraterrestrial, instead of volcanogenic or geochemical enrichment origin. The patterns of other trace elements in various phases also confirm the above conclusion.
关键词K-T BOUNDARY IR ANOMALY CHEMICAL SPECIES EVENT STRATIGRAPHY
学科领域Chemistry
研究领域[WOS]Chemistry ; Chemistry
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语种英语
研究领域[WOS]Chemistry ; Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:A1991GY89400011
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239385
专题院士
作者单位中国科学院高能物理研究所
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GB/T 7714
Chai ZF,Kong P,Mao XY,et al. CHEMICAL-SPECIES OF IRIDIUM AND OTHER TRACE-ELEMENTS AT K-T BOUNDARY CLAY LAYER, STEVNS KLINT, DENMARK, AND ITS IMPLICATION[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,1991,34(12):1492-1500.
APA 柴之芳.,孔屏.,毛雪瑛.,马淑兰.,周瑶琪.,...&MA, JG.(1991).CHEMICAL-SPECIES OF IRIDIUM AND OTHER TRACE-ELEMENTS AT K-T BOUNDARY CLAY LAYER, STEVNS KLINT, DENMARK, AND ITS IMPLICATION.SCIENCE IN CHINA SERIES B-CHEMISTRY,34(12),1492-1500.
MLA 柴之芳,et al."CHEMICAL-SPECIES OF IRIDIUM AND OTHER TRACE-ELEMENTS AT K-T BOUNDARY CLAY LAYER, STEVNS KLINT, DENMARK, AND ITS IMPLICATION".SCIENCE IN CHINA SERIES B-CHEMISTRY 34.12(1991):1492-1500.
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