MEČKOV, ROKYTNÁ CONGLOMERATE IN BOSKOVICE BASIN, PERMIAN
2019
Rokytna conglomerates and breccias are grey to red, coarse- to
very coarse-grained, clast-supported sediments (locally, the
matrix-supported varieties may occur). They are poorly sorted
with rounded to subangular pebbles, max. size of clast is about
50 cm (along the a axis). Conglomerates and breccias (Fig. 5-1)
are facially monotonous, the material was derived from easterly
situated geological units. Culmian rocks (greywackes, shales,
conglomerates) dominate here (89–99 %), Devonian to Lower
Carboniferous limestones (Spacek et al. 2002) are locally
common (up to 6 %). Quartz, quartzite and magmatic rock clasts
derived likely from the Brunovistulian units are variably
distributed. They are exceptional at Meckov, but could be
relatively common (up 3 %) in other exposures of the Rokytna
Conglomerate.
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