Počet záznamů: 1
Lacustrine couplet-lamination: evidence for Late Pennsylvanian seasonality in central equatorial Pangaea (Stephanian B, Mšec Member, Central and Western Bohemian basins)
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SYSNO ASEP 0357348 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Lacustrine couplet-lamination: evidence for Late Pennsylvanian seasonality in central equatorial Pangaea (Stephanian B, Mšec Member, Central and Western Bohemian basins) Tvůrce(i) Lojka, R. (CZ)
Sýkorová, Ivana (USMH-B) RID, ORCID
Laurin, Jiří (GFU-E) ORCID, RID
Matysová, Petra (USMH-B)
Matys Grygar, Tomáš (UACH-T) RID, SAI, ORCIDZdroj.dok. Bulletin of Geosciences. - : Česká geografická společnost - ISSN 1214-1119
Roč. 85, č. 4 (2010), s. 709-734Poč.str. 26 s. Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova lamination ; cyclicity ; freshwater lake ; dispersed organic matter ; siderite ; palaeoclimate Vědní obor RIV DB - Geologie a mineralogie CEP KJB307020601 GA AV ČR - Akademie věd IAA300460804 GA AV ČR - Akademie věd CEZ AV0Z30120515 - GFU-E (2005-2011) AV0Z30460519 - USMH-B (2005-2011) AV0Z40320502 - UACH-T (2005-2011) UT WOS 000285651000014 DOI 10.3140/bull.geosci.1210 Anotace A large freshwater lake formed during the Stephanian B period of the late Pennsylvanian in the central east equatorial Pangaea and covered a substantial part of the continental Late Palaeozoic basins in the central Bohemian Massif. Lacustrine mudstones of the Mšec Member were acquired from two shallow boreholes 80 km apart and were analysed for lamination structure and periodicity, mineral composition and dispersed organic matter, in order to obtain more detailed information on the palaeoenvironmental change with a near annual resolution. Two hydrological states of the lake were identified, including high lake-level periods with dysoxic conditions on the lake floor, under a permanently thermally stratified hypolimnion favouring organic matter production and storage during periods of condensed sedimentation producing an irregular lamination pattern. Pracoviště Geofyzikální ústav Kontakt Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Rok sběru 2011
Počet záznamů: 1