Home > Search Results: "Mezinárodní konference využívání zdrojů nerostných surovin"
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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Unique colour Cetraceous sandstone from quarry Javorka in Lázně Bělohrad
 Vavro, M. ; Žoček, F. ; Vavro, Leona ; Petrů, J. ; Martinec, Petr ; Ščučka, Jiří
Presented contribution gives a summary of geologocal conditions, mineragical and petrographic compositions and physical-mechanical durability properties of one, in colour and texture unusual sandstone of Czech Cetraceous Period. This stone is slightly pink and violet sandstone, nowadays exploited in qarry Javorka in Horní Nová Ves by Lázně Bělohrad and therefore sometimes also called Bělohrad sandstone.
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Water jet in process of mineral raw material using
 Vašek, Jaroslav
Water jet progressive technology for material disintegration. Parameters and possibilities of WJT using. Application of WJT during rocks blocks exploitation. Safety and hygiene conditions.
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