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  • A synthesis of the upper Moscovian sedimentotogical and palaeontological record of terrestrial habitats across the Variscan foreland and adjacent intramontane basins (area which is referred to here as Variscan Euramerica) suggests a contraction and progressive westward shift of the coal swamps. These changes can be correlated with pulses of tectonic activity (tectonic phases) resulting from the northwards migration of the Variscan Front. This tectonic activity caused disruption to the landscapes and drainage patterns where the coat swamps were growing, which became less suitable to growth of the dominant plants of the swamps, the arborescent lycopsids. They were progressively replaced by vegetation dominated by marattialean ferns, which through a combination of slower growth and larger canopies resulted in less evapo-transpiration. This in turn caused localised reductions in rainfall, which further affected the ability of the lycopsids to dominate the swamp vegetation. These changes were initially localised and where the coat swamps were able to survive the lycopsids and pteridosperms show little change in either species diversity or biogeography, indicating that at this time there was minimal regional-scale climate change taking place. By Asturian times, however, the process had accelerated and the swamps in Variscan Euramerica became progressively replaced by predominantly conifer and cordaite vegetation that favoured much drier substrates. Except in localised pockets in intramontane basins of the Variscan Mountains, the last development of coat swamps in Variscan Euramerica was of early Cantabrian age. Further west, lycopsid-dominated coal swamps persisted for a little longer. The last remnants of the lycopsid-dominated coal swamps in the Illinois Basin disappeared probably by middle-late Cantabrian times, as the cycle of contracting wetlands and regional reductions in rainfall generated its own momentum, and no longer needed the impetus of tectonic instability.
  • A synthesis of the upper Moscovian sedimentotogical and palaeontological record of terrestrial habitats across the Variscan foreland and adjacent intramontane basins (area which is referred to here as Variscan Euramerica) suggests a contraction and progressive westward shift of the coal swamps. These changes can be correlated with pulses of tectonic activity (tectonic phases) resulting from the northwards migration of the Variscan Front. This tectonic activity caused disruption to the landscapes and drainage patterns where the coat swamps were growing, which became less suitable to growth of the dominant plants of the swamps, the arborescent lycopsids. They were progressively replaced by vegetation dominated by marattialean ferns, which through a combination of slower growth and larger canopies resulted in less evapo-transpiration. This in turn caused localised reductions in rainfall, which further affected the ability of the lycopsids to dominate the swamp vegetation. These changes were initially localised and where the coat swamps were able to survive the lycopsids and pteridosperms show little change in either species diversity or biogeography, indicating that at this time there was minimal regional-scale climate change taking place. By Asturian times, however, the process had accelerated and the swamps in Variscan Euramerica became progressively replaced by predominantly conifer and cordaite vegetation that favoured much drier substrates. Except in localised pockets in intramontane basins of the Variscan Mountains, the last development of coat swamps in Variscan Euramerica was of early Cantabrian age. Further west, lycopsid-dominated coal swamps persisted for a little longer. The last remnants of the lycopsid-dominated coal swamps in the Illinois Basin disappeared probably by middle-late Cantabrian times, as the cycle of contracting wetlands and regional reductions in rainfall generated its own momentum, and no longer needed the impetus of tectonic instability. (en)
Title
  • Late Moscovian terrestrial biotas and palaeoenvironments of Variscan Euramerica
  • Late Moscovian terrestrial biotas and palaeoenvironments of Variscan Euramerica (en)
skos:prefLabel
  • Late Moscovian terrestrial biotas and palaeoenvironments of Variscan Euramerica
  • Late Moscovian terrestrial biotas and palaeoenvironments of Variscan Euramerica (en)
skos:notation
  • RIV/00216208:11310/09:10118647!RIV12-MSM-11310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA205/05/2034), V, Z(AV0Z30130516), Z(MSM0021620855), Z(MZP0002579801)
http://linked.open...iv/cisloPeriodika
  • 4
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 323290
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11310/09:10118647
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • sedimentology; faunas; vegetation; climates; Pennsylvanian subsystem (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [EAB67660304D]
http://linked.open...i/riv/nazevZdroje
  • Geologie en Mijnbouw/Netherlands Journal of Geosciences
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 88
http://linked.open...iv/tvurceVysledku
  • Šimůnek, Zbyněk
  • Bek, Jiří
  • Pšenička, Josef
  • Opluštil, Stanislav
  • Uhl, D.
  • Zodrow, E. L.
  • Libertín, Milan
  • Drabková, Jana
  • Schultka, S.
  • Thomas, B. A.
  • Dimitrova, T.
  • Abbink, O. A.
  • B. A., C. J.
  • Hartkopf-Froeder, Ch.
  • Jarzembowski, E.
  • Jasper, K.
  • Kedzior, A.
  • McLean, D.
  • Oliwkiewicz-Miklasinska, M.
  • Ptak, B.
  • Schneider, J. W.
  • Tenchov, Y.
  • Waksmundzka, M. I.
  • van Hoof, T.
  • van Waveren, I.
http://linked.open...ain/vavai/riv/wos
  • 000280716000001
http://linked.open...n/vavai/riv/zamer
issn
  • 0016-7746
number of pages
http://localhost/t...ganizacniJednotka
  • 11310
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