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Wyszukujesz frazę "Jirásek, J." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Coal-bearing capacity of the Petřkovice Member (Ostrava Formation, Serpukhovian, Mississippian) of the Upper Silesian Basin (Czech Republic and Poland)
Autorzy:
Hýlová, L.
Jirásek, J.
Sivek, M.
Jureczka, J.
Powiązania:
https://bibliotekanauki.pl/articles/2059953.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Upper Silesian Basin
Serpukhovian
Mississippian
Carboniferous
coal-bearing capacity
Opis:
The Petřkovice Member is the basal unit of the paralic succession of the Ostrava Formation of the Upper Silesian Basin. This member is a valuable source of information about the transition from a marine basin filled with siliciclastic sediments into a paralic basin with the beginning of coal-bearing sedimentation. Models of: (1) the number of coal seams, (2) their total thickness, and (3) the coal content with respect to the total thickness of the succession were created to describe and assess the coal-bearing capacity of the Petřkovice Member. The authors present models for coal seam thicknesses exceeding either 10 or 40 cm. The coal-bearing capacity of the Petřkovice Member is very low. The average share of coal seams thicker than 0.1 m is 3%. The share of coal seams with a thickness that exceeds 0.4 m is only 1.66%. Moreover, in large areas of the basin, in the N and NE parts, the coal-bearing capacity is close to zero, because coal seams of greater thickness were detected only locally there. Based on these models and on other geological data, it is obvious that the onset of coal sedimentation was gradual and limited to particular sites showing the greatest subsidence of the basin floor. In places where minor subsidence took place, there were likely unfavorable conditions for accumulation of organic matter.
Źródło:
Geological Quarterly; 2016, 60, 3; 637--649
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zawartość części lotnych w węglach kamiennych : parametr nie tylko chemiczno-technologiczny
Volatile matter content of the bituminous coal : not only chemical-technological parameter
Autorzy:
Sivek, M.
Jirásek, J.
Hýlová, L.
Mirkowski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/2075846.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
substancja lotna
koksowość
Prawo Hilt'a
węgiel kamienny
gospodarka
zarządzanie kopalniami węgla
polityka energetyczna
volatile matter
cokeability
Hilt's Law
bituminous coal
economy and management of coal mines
energy policy
Opis:
The volatile matter content is one of the most common chemical-technological parameters that have been determined for the vast majority of samples taken from the bituminous coal seams for more than 100 years. Its meaning is essentially triple. The oldest and also most well-known is its use for the determination of the degree of coalification (rank) of coal, but also of certain chemical-technological properties of coal (especially cokeability). With the development of coal geology and sedimentology, as well as the increasing importance of energy raw materials in the nation's economy, new ways ofusing the values of the volatile matter content have emerged. One of them was the study of the history of geological development of sedimentary, especially coal basins, the management of the mining industry economy, as well as the assessment andformulation of raw materials policy of the state. From a test originally designed to assess the suitability ofcoalfor coking, it has become a parameter used in the field of geology, economy and raw materials policy of the state.
Źródło:
Przegląd Geologiczny; 2018, 66, 8; 477--480
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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