Lacustrine couplet-lamination: evidence for Late Pennsylvanian seasonality in central equatorial Pangaea (Stephanian B, Mšec Member, Central and Western Bohemian basins)

Lojka, R.; Sýkorová, Ivana; Laurin, Jiří; Matysová, Petra; Matys Grygar, Tomáš

doi:https://dx.doi.org/10.3140/bull.geosci.1210

Number of the records: 1

Lacustrine couplet-lamination: evidence for Late Pennsylvanian seasonality in central equatorial Pangaea (Stephanian B, Mšec Member, Central and Western Bohemian basins)

1.

SYSNO ASEP	0357348
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Lacustrine couplet-lamination: evidence for Late Pennsylvanian seasonality in central equatorial Pangaea (Stephanian B, Mšec Member, Central and Western Bohemian basins)
Author(s)	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, ORCID}
Source Title	Bulletin of Geosciences. - : Česká geografická společnost - ISSN 1214-1119 Roč. 85, č. 4 (2010), s. 709-734
Number of pages	26 s.
Language	eng - English
Country	CZ - Czech Republic
Keywords	lamination ; cyclicity ; freshwater lake ; dispersed organic matter ; siderite ; palaeoclimate
Subject RIV	DB - Geology ; Mineralogy
R&D Projects	KJB307020601 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	IAA300460804 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
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
Annotation	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.
Workplace	Geophysical Institute
Contact	Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028
Year of Publishing	2011

Number of the records: 1