globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00531-012-0853-5
论文题名:
The Main Ostrava Whetstone: Composition, sedimentary processes, palaeogeography and geochronology of a major Mississippian volcaniclastic unit of the Upper Silesian Basin (Poland and Czech Republic)
作者: Jirásek J.; Hýlová L.; Sivek M.; Jureczka J.; Martínek K.; Sýkorová I.; Schmitz M.
刊名: International Journal of Earth Sciences
出版年: 2013
卷: 102, 期:4
起始页码: 989
结束页码: 1006
语种: 英语
英文关键词: Carboniferous ; Chronostratigraphy ; Sedimentology ; Serpukhovian ; Upper Silesian Basin ; Volcaniclastic sediment
Scopus关键词: argillaceous deposit ; Carboniferous ; chronostratigraphy ; foreland basin ; geochronology ; lithostratigraphy ; Mississippian ; paleogeography ; plagioclase ; sedimentation ; sedimentology ; siltstone ; synsedimentary tectonics ; volcanic eruption ; volcaniclastic deposit ; volcanogenic deposit ; Czech Republic ; Poland ; Upper Silesian Coal Basin
英文摘要: The Main Ostrava Whetstone (MOW) is an important lithostratigraphic horizon of the Late Carboniferous sedimentary fill of the late Palaeozoic foreland Upper Silesian Basin. It is the largest and best-identified volcanogenic horizon in the basin, reaching thicknesses of 15.3 m and occupying an area of ca 2,973 km2 and a volume after lithification of 9.24 km3. It consists of volcanic materials transported to the basin probably by an aeolian process. Just after sedimentation, these materials were redeposited a short distance away in a shallow water environment. Granularity corresponds to a range from argillaceous siltstones to fine-grained sandstones. The components are dominated by glass shards replaced by clay minerals (mixed illite-smectite structures) in addition to quartz of volcanogenic and terrigenous origins. Sanidine and a plagioclase close to albite are also present. The sedimentary structures, micro-structures and composition of the MOW indicate variable and dynamic hydrodynamic conditions. The MOW represents a series of flooding events, which could be connected with unusual rainfall. Such major flooding events were most likely induced by volcanic eruptions. The available drill-core log data were used to construct a digital model of the whetstone, which showed an east-west zonality in the thicknesses, with the majority being synsedimentary. CA-TIMS U-Pb dating the volcanogenic zircons yields an age of 327.35 ± 0.15 Ma. The source location of the volcanogenic material is not clear; however, it is presumed to have been located in the west of the Upper Silesian Basin. © 2013 Springer-Verlag Berlin Heidelberg.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878108365&doi=10.1007%2fs00531-012-0853-5&partnerID=40&md5=e91bdd600bb9b9b20c6980c088aba007
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70562
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Faculty of Mining and Geology, VŠB - Technical University of Ostrava, 17. Listopadu 15/2172, 708 33 Ostrava, Poruba, Czech Republic; Faculty of Science, Palacký University, 17. Listopadu 12, 771 46 Olomouc, Czech Republic; Upper Silesian Branch, Polish Geological Institute, Królowej Jadwigi 1, 41-200 Sosnowiec, Poland; Faculty of Science, Charles University in Prague, Albertov 6, 128 43 Praha 2, Czech Republic; Academy of Sciences of the Czech Republic, Institute of Rock Structure and Mechanics, V Holešovičkách 41, 182 09 Praha 8, Czech Republic; Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID, United States

Recommended Citation:
Jirásek J.,Hýlová L.,Sivek M.,et al. The Main Ostrava Whetstone: Composition, sedimentary processes, palaeogeography and geochronology of a major Mississippian volcaniclastic unit of the Upper Silesian Basin (Poland and Czech Republic)[J]. International Journal of Earth Sciences,2013-01-01,102(4)
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