Record details

Title
    Využití chemismu detritických granátů pro určení provenience a litostratigrafii kulmu Drahanské vrchoviny
Statement of responsibility
    Renata Čopjaková, Petr Sulovský, Jiří Otava
Other titles
    Šlichová prospekcia a akcesorické minerály. Príspevky z konferencie, Banský Studenec, 14.-16. novembra 2001 (Variant.)
    Use of detrital garnet chemistry for determination of provenance and lithostratigraphy of the Drahany Upland Culm
Author
    Čopjaková, Renata
    Otava, Jiří, 1950-
    Sulovský, Petr, 1952-
Language
    česky
Source title - serial
    Mineralia Slovaca
Vol./nr.
    Roč. 33, č. 5
Pages
    s. 509-511
Year
    2001
Notes
    2 obr., 1 diagr.
    Anglické resumé
    il.
    Obsahuje bibliografické odkazy
    Zkr. název ser.: Miner. slov.
Classfication no.
    54
    55(1)
    552
Conspectus category
    549
    55
    552
Subject group
    flyš
    geologie regionální
    granáty
    karbon-spodní
    kulm
    moravskoslezské prevariské paleozoikum
    oblast snosová
    sedimentace detritická
    složení chemické
Geographical name
    ČR-Morava
    Drahanská vrchovina
Keyword
    Chemismu
    Detritických
    Drahanské
    Granátů
    Kulmu
    Litostratigrafii
    Provenience
    Určení
    Vrchoviny
    Využití
Abstract (in english)
   The Drahany Upland belongs to the Rhenohercynian belt of the Central European Variscides. In this study heavy-mineral assemblage from graywackes, particularly garnets were studied to assess the provenance and correlate flysch formations. The value of heavy-mineral analysis in the study of provenance is restricted by diagenetic processes, which cause dissolution of minerals. The heavy-mineral assemblages of Drahany Upland are not remarkably altered and the stage of alteration decrease from north to south. Within the garnet group, preferential dissolution of more calcium rich garnets was not observed. In addition, the chemistry of garnets was studied. the statistical evaluation and comparison of detrial garnets of graywackes with garnets from supposed source units was preformed. The garnet populations from drahany Culm fall into three different assemblages - older polymict (Pe - Go ), younger transient (Go) and the youngest oligomict (Go - Go).
   The changes in detrial garnet assemblage reflect the provenance evolution
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    25. 3. 2008
Import date
    8. 8. 2012