Identification and origins of iron sulfides in Czech loess

	Identification and origins of iron sulfides in Czech loess
	Shi, CD ; Zhu, RX ; Suchy, V ; Zeman, A ; Guo, B ; Pan, YX
刊名	GEOPHYSICAL RESEARCH LETTERS
	2001-10-15
卷号	28 期号:20 页码:3903-3906
ISSN号	0094-8276
文献子类	Article
英文摘要	Multiple rock-magnetic and non-magnetic techniques were employed to identify iron sulfides in late Pleistocene Czech loess deposits. The results indicate that iron sulfides in the loess at Znojmo section are mainly pyrrhotite and pyrite, with stoichiometry ranging from Fe10S11 to FeS2. Although early pedogenic origin of fine sulfide fraction can not be ruled out, scanning electron microscopy (SEM) of individual grains and microscopic observations of magnetic extracts show that iron sulfide grains are probably of detrital origin. Potential sources of these sulfides may have been eluvium loams above hypothetical ore deposits in the vicinity of the section or glacifluvial sediments from nearby glacial margins. Framboidal pyrite forms, now completely replaced by iron oxides, suggest that some particles of biogenic sulfides may have also been transported into loess from presumably fluvial sediments.
WOS关键词	MAGNETIC-PROPERTIES ; GREIGITE FE3S4 ; MINERALS ; TEMPERATURE ; PYRRHOTITE ; SEDIMENTS ; ROCK
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000171588000020
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/76959]
专题	中国科学院地质与地球物理研究所
通讯作者	Shi, CD
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100101, Peoples R China 2.Acad Sci Czech Republ, Inst Geol, Prague, Czech Republic
推荐引用方式 GB/T 7714	Shi, CD,Zhu, RX,Suchy, V,et al. Identification and origins of iron sulfides in Czech loess[J]. GEOPHYSICAL RESEARCH LETTERS,2001,28(20):3903-3906.
APA	Shi, CD,Zhu, RX,Suchy, V,Zeman, A,Guo, B,&Pan, YX.(2001).Identification and origins of iron sulfides in Czech loess.GEOPHYSICAL RESEARCH LETTERS,28(20),3903-3906.
MLA	Shi, CD,et al."Identification and origins of iron sulfides in Czech loess".GEOPHYSICAL RESEARCH LETTERS 28.20(2001):3903-3906.