Record details

Title
    Greigit v sedimentech mostecké pánve
Statement of responsibility
    Jiří Jansa, František Novák, Martin Šťastný
Other titles
    Greigite from the sediments in the Most Basin (Czech Republic)
Author
    Jansa, Jiří
    Novák, František
    Šťastný, Martin
Language
    anglicky
Source title - serial
    Věstník Českého geologického ústavu (Bulletin of the Czech Geological Survey)
Vol./nr.
    Vol. 73, no. 1
Pages
    p. 85-88
Year
    1998
Notes
    2 obr., 1 fot., 1 tab., 9 bibl.
    Anglické resumé
    Zkr. název ser.: Věst. Čes. geol. Úst. (Bull. Czech geol. Surv.)
Subject group
    greigit (smythit)
    jílovec
    lokalita mineralogická
    minerály koexistující
    miocén
    parametr
    severočeská pánev
    sulfidy
    uhlí hnědé
    vlastnosti chemické
    vlastnosti fyzikální
Geographical name
    ČR-Čechy
    Dolní Jiřetín (Most)
    Libkovice (Most)
    Lom (Most)
    Louka u Litvínova (Most)
    Mariánské Radčice (Most)
    Záluží (Most)
Keyword
    Greigit
    Mostecké
    Pánve
    Sedimentech
Abstract (in english)
   Greigite occurs in the Miocene claystones of the upper part of the Most Formation in the Most Basin. It is present locally in two intervals of 0.5-2 m in thickness, which are represented by irregularly distributed thin layers and minute lenticular accumulations. Greigite is accompanied frequently by siderite and rarely by bisulphides of Fe. The separated greigite is greyish black, soot-like and strongly magnetic. Its accumulations are prevailingly formed of fine-grained aggregates having different shades of greyish yellow in colour and lower reflectance in polished sections. The parameter of its cubic lattice is a= 0.9873 (2) nm. All microanalyses show a distinct excess of Fe as a result of its partial oxidation. The contents of minor elements substituing Fe in the structure of this sulphide are (in ppm): Co 428, Cu 202, Ni 2007 and Zn 585. It is an authigenic mineral formed in the stage of early diagenesis of the claystones
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    5. 8. 2008
Import date
    8. 8. 2012