Record details

Title
    Optical anisotropy of coal from the Ruda syncline area in the upper Silesian Coal Basin (USCB) and its relation to tectonic setting
Statement of responsibility
    Rafal Morga, Krystian Probierz
Author
    Morga, Rafal
    Probierz, Krystian
Language
    anglicky
Source title - serial
    Věstník Českého geologického ústavu (Bulletin of the Czech Geological Survey)
Vol./nr.
    Vol. 74, no. 2
Pages
    p. 159-162
Year
    1999
Notes
    3 obr., 2 tab., 22 bibl.
    České resumé
    Zkr. název ser.: Věst. Čes. geol. Úst. (Bull. Czech geol. Surv.)
Subject group
    anizotropie
    hornoslezská pánev
    kontrola strukturní
    odrazivost
    prouhelnění
    uhlí bituminózní
    vitrinit
Geographical name
    Polsko - jihozápad
    Ruda (Polsko-jihozápadní)
Keyword
    Anisotropy
    Area
    Basin
    Coal
    Optical
    Relation
    Ruda
    Setting
    Silesian
    Syncline
    Tectonic
    Upper
    USCB
Abstract (in english)
   Oriented blocks and non-oriented samples were examined. True reflectance values determined on the oriented blocks are Rmax. 0.94-1.02%, Rint=0.88=0.95% and Rmin=0.81-0.86% whereas on the non-oriented samples: Rbmax=0.96-1.03%, Rbint=0.090-0.96% and Rbmin=0.93-0.88%. Bireflectance amounts analogically: Rbi=0.12-0.17% and Rbbi=0.13-0.15%. Vitrinite in all the cases reveals biaxial negative optical character. Direction of Rmax axis (azimuth 18°-38°) is concordant with the syncline axis. Deviation of Rmin axis from the vertical is usually 10-15° with SE plunge and its reorientation from perpendicular to bedding reaches 8-20°. Coalification in the study area occurred simultaneously with the formation of the Ruda syncline. Vitrinite indicatrix was formed by stress connected mostly with occurrence of the overburden or movements of the crystalline basement blocks but also due to the East-Sudetic compression
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    11. 2. 2008
Import date
    8. 8. 2012