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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
The new finding of a K- bentonite ( tuffite ) seam 22b ( 080.2 OKD " tuffite Ivan " ) in Petřkovice Mbr Ostrava Formation ( Namur A) in the Czech part of the Upper Silesian Basin
 Martinec, Petr ; Hoch, I. ; Ščučka, Jiří
New finding of a K-bentonite (tuffite) horizon comes from a mine borehole Staric II 938/13 (depth of 7,6 - 7,62 m). It belongs to the Petrkovice Mbr (Namurian A, Pendleian) in the Ostrava Fm. It occurs 2,3 m in overburden of coal seam 22b (080.2 numeration after Ostrava Mine District). The horizon is located 58 m above the coal tonstein of the coal seam 21d (077 OKD). This K-bentonite horizon is of local importance and will be used for correlation of coal seams in mine field Staric in the Czech part of the Upper Silesian coal basin.
Fulltext: content.csg - Download fulltextDOC
Plný tet: UGN_0398227 - Download fulltextDOC
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Horizont No.23a underlying of the coal seam in the Staříč Mine coal field
 Martinec, Petr ; Filák, P. ; Welser, P. ; Uher, A.
New volcanogenous horizont 23a underlying of the coal seam in the Paskov-Staříč mine. Composition, occurrence and importance for local correlation of coal seam 23a.
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