Discovery and significance of microspherules at Lower-Middle Devonian boundary of Guangxi, South China

	Discovery and significance of microspherules at Lower-Middle Devonian boundary of Guangxi, South China
	Bai, ZQ
	2000-06-01
发表期刊	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
ISSN	1006-9313
卷号	43 期号:3 页码:302-307
摘要	Microspherules are found in different facies at the Lower-Middle Devonian boundary, Guangxi, South China. There are more than 20 grains per kilogram rock sample. Composition and form of the microspherules are very similar to those of the microtektites from modern deposits of South Pacific Ocean and F-F boundary (Devonian). This may indicate that the microspherules from Guangxi are most likely the products of an extraterrestrial impact event that occurred at the end of Early Devonian Epoch. The event may be responsible for the biomass reduction and extinction of benthic organisms at the end of Early Devonian. The impact products (ejecta) can be used as a potential tool for stratigraphic correlation.
关键词	microspherules Devonian South China
语种	英语
关键词[WOS]	EXTINCTION
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000088248700009
出版者	SCIENCE PRESS
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/834
专题	中国科学院南京地质古生物研究所
通讯作者	Bai, ZQ
作者单位	1.Peking Univ, Dept Geol, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Bai, ZQ. Discovery and significance of microspherules at Lower-Middle Devonian boundary of Guangxi, South China[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2000,43(3):302-307.
APA	Bai, ZQ.(2000).Discovery and significance of microspherules at Lower-Middle Devonian boundary of Guangxi, South China.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,43(3),302-307.
MLA	Bai, ZQ."Discovery and significance of microspherules at Lower-Middle Devonian boundary of Guangxi, South China".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 43.3(2000):302-307.