Identification and origins of iron sulfides in Czech loess

0145251 - GLU-S 20013205 RIV US eng J - Journal Article
Shi, C. D. - Zhu, R. X. - Suchý, Václav - Zeman, Antonín - Guo, B. - Pan, Y. X.
Identification and origins of iron sulfides in Czech loess.
Geophysical Research Letters. Roč. 28, č. 20 (2001), s. 3903-3906. ISSN 0094-8276. E-ISSN 1944-8007
Institutional research plan: CEZ:AV0Z3013912
Keywords : iron sulfides
Subject RIV: DB - Geology ; Mineralogy
Impact factor: 2.516, year: 2001

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.
Permanent Link: http://hdl.handle.net/11104/0042864