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Influence of composition and fabric of volcanic rocks on their technological properties
Krutilová, Kateřina
Because of a very variable geological composition of the Czech Republic, there is a various scale of all genetic types of rocks that are used for the production of crushed stone. The most often used group of rocks are effusive magmatic rocks, which represent about 34 % of crushed stone marketed (Starý et al. 2010). These rocks are used for all kinds of construction purposes including roads. The experimental material of crushed stone used in this thesis was sampled from 40 active quarries in the Czech Republic. The studied volcanic rocks originated from Neoproterozoic and Paleozoic complexes of Barrandien, Carboniferous and Permian of Krkonose Piedmont Basin, Carboniferous and Permian of Intrasudetic basin, area of ordovician Železné Hory, from the main volcanic center of Bohemian Massif in the north-west Bohemia (České středohoří Mts. and Doupov Mts.), Neovolcanic area of Czech Cretaceous basin and area of Neovolcanic East and West Sudeten. Petrographic study was carried out in a form of standard petrographic analysis of thin sections and chemical analysis, which helped inclusion of rocks to a classified systems. The whole suite of volcanic rocks was separated to five petrographic-technologic subgroups defined as: (1) rhyolites / porphyres, (2) phonolites, (3) basalts s.l., (4) spilites and (5)...
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Influence of composition and fabric of volcanic rocks on their technological properties
Krutilová, Kateřina
Because of a very variable geological composition of the Czech Republic, there is a various scale of all genetic types of rocks that are used for the production of crushed stone. The most often used group of rocks are effusive magmatic rocks, which represent about 34 % of crushed stone marketed (Starý et al. 2010). These rocks are used for all kinds of construction purposes including roads. The experimental material of crushed stone used in this thesis was sampled from 40 active quarries in the Czech Republic. The studied volcanic rocks originated from Neoproterozoic and Paleozoic complexes of Barrandien, Carboniferous and Permian of Krkonose Piedmont Basin, Carboniferous and Permian of Intrasudetic basin, area of ordovician Železné Hory, from the main volcanic center of Bohemian Massif in the north-west Bohemia (České středohoří Mts. and Doupov Mts.), Neovolcanic area of Czech Cretaceous basin and area of Neovolcanic East and West Sudeten. Petrographic study was carried out in a form of standard petrographic analysis of thin sections and chemical analysis, which helped inclusion of rocks to a classified systems. The whole suite of volcanic rocks was separated to five petrographic-technologic subgroups defined as: (1) rhyolites / porphyres, (2) phonolites, (3) basalts s.l., (4) spilites and (5)...
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Influence of composition and fabric of volcanic rocks on their technological properties
Krutilová, Kateřina ; Přikryl, Richard (advisor) ; Vavro, Martin (referee) ; Holzer, Rudolf (referee)
Because of a very variable geological composition of the Czech Republic, there is a various scale of all genetic types of rocks that are used for the production of crushed stone. The most often used group of rocks are effusive magmatic rocks, which represent about 34 % of crushed stone marketed (Starý et al. 2010). These rocks are used for all kinds of construction purposes including roads. The experimental material of crushed stone used in this thesis was sampled from 40 active quarries in the Czech Republic. The studied volcanic rocks originated from Neoproterozoic and Paleozoic complexes of Barrandien, Carboniferous and Permian of Krkonose Piedmont Basin, Carboniferous and Permian of Intrasudetic basin, area of ordovician Železné Hory, from the main volcanic center of Bohemian Massif in the north-west Bohemia (České středohoří Mts. and Doupov Mts.), Neovolcanic area of Czech Cretaceous basin and area of Neovolcanic East and West Sudeten. Petrographic study was carried out in a form of standard petrographic analysis of thin sections and chemical analysis, which helped inclusion of rocks to a classified systems. The whole suite of volcanic rocks was separated to five petrographic-technologic subgroups defined as: (1) rhyolites / porphyres, (2) phonolites, (3) basalts s.l., (4) spilites and (5)...
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Summer Olympic Games in the Cold War (Moscow 1980 and Los Angeles 1984)
Matoušek, Martin ; Kovář, Martin (advisor) ; Soukup, Jaromír (referee)
The work deals with the history of the Olympic Games, which were held in Moscow in 1980 and four years later in Los Angeles. These two major sporting events have been very affected by the political situation. The Soviet military intervention in Afghanistan in the end of 1979 led to the boycott of the Olympic Games from the US and a number of other States. I t was the largest boycott of the history of the games.Also indirectly led to the boycott of the games in Los Angeles, the Soviet Union and its satellites four years later. It is therefore both Olympics history analyzed in political context internationally. In this respect are the most important relations between the Soviet Union and the United States, mentioned are the other important events of international politics in the 1970s. years, including the Soviet-Afghan relations. In the case of two Olympiads are mentioned important facts concerning the Organization of the games facilities, sports venues, results and more. Mention also the impact of the boycott to cast individual and team competitions both Olympics. Part of the work is devoted to the Czechoslovak looking at the whole issue. The history of the Olympics, both the international situation and the way they were presented and accepted at the time in Czechoslovakia are the result of a...
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