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001-es BibID:BIBFORM083217
Első szerző:Barbacka Mária
Cím:Palaeotopography related plant succession stages in a coal forming deltaic succession in early Jurassic in Hungary / Maria Barbacka, Zoltán Püspöki, Emese Bodor, Zoltán Forgács, Mária Hámor-Vidó, Grzegorz Pacyna, Richard William McIntosh
Dátum:2015
ISSN:0031-0182
Megjegyzések:An integrated palaeoecological study was performed regarding the Early Jurassic coal bearing succession (Mecsek Coal Formation) of the Mecsek Basin (S Hungary) focusing on boreholes from Máza-South and Rücker areas representing the periphery and the central part of the coastal plain of a delta respectively. Comparative investigations were based on a previous palaeobotanical ecogroup model and on the integrated interpretation of sedimentological and palaeobotanical data from Máza-South. Sedimentary isopach and coal seam ash content data were applied to reconstruct palaeotopography and coal seam thickness data to detect plant growing intensity at Máza-South (10 km2). Plant fossils identified from the corresponding strata were used as sources for the identification of four topography-related plant succession stages determined by sequential facies changes. Channel banks and small islands are characterised by underdeveloped associations composed of colonist elements. Exposed slopes or levees, or local elevations in overbank conditions are covered with assemblages of small herbaceous plants. Crevasse splay complexes are characterised by more developed plant cover and swamps in floodplain depressions are characterised by typical swampy successions. Based on these succession stages, plant remains from Rücker were also interpreted, however, mainly swampy and elevated overbank habitats alternated at Rücker reflecting continuous floods. According to the results, Máza-South was a small area located very close to the bayline between the alluvial plain and the coastal plain of a delta, less favourable for intensive plant growing where dry land was restricted to levees and crevasse splays. This resulted in more dynamic plant changes, typical for deltaic peripheral territories. In contrast, Rücker represents the central part of the delta plain environment dominated by woody forms of large growth. In the uppermost sequence plant composition at Máza-South became similar to that of Rücker indicating that, with transgression, the central delta plain environment, permanent at Rücker, advanced towards the peripheral zone represented by Máza-South.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Palaeoecology
Macroflora
Coal geology
Ash content
Palaeotopography
Hungary
Megjelenés:Palaeogeography Palaeoclimatology Palaeoecology. - 440 (2015), p. 579-593. -
További szerzők:Püspöki Zoltán (1972-) (geológus) Bodor Emese (Budapest) Forgács Zoltán Hámorné Vidó Mária Pacyna, Grzegorz McIntosh, Richard William (1978-) (geológus)
Pályázati támogatás:OTKA K100658
OTKA
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2.

001-es BibID:BIBFORM081913
Első szerző:Barbacka Mária
Cím:A quantitative approach for identifying plant ecogroups in the Romanian Early Jurassic terrestrial vegetation / Mária Barbacka, Mihai Emilian Popa, Józef Mitka, Emese Bodor, Zoltán Püspöki, Richard William McIntosh
Dátum:2016
ISSN:0031-0182
Megjegyzések:Community level ecology is considered to support significantly the recognition of the ecological status of planttaxa and the identification of plant ecogroups, thus it generally provides extended data sets on the spatial andtemporal changes of ecological factors. Since research based exclusively on plant structure and their supposedadaptation to the environment is now considered inadequate, statistical methods can be used. Assuming thatco-occurrence of plant fossils on a single hand specimen in the case of autochthonous or parautochthonousflorasis the result of their growth in the same phytocenosis, quantitative ecological analysis on Mesozoic materialswould yield significant insights. In this paper, statistical and multivariate quantitative analyses of Early Jurassicplant fossil records from the Steierdorf Formation in Anina (South Carpathians, Romania) are presented. Fourpalaeoecological groups of taxa were distinguished by principal component analysis (PCA) and interpreted asplant assemblages of various palaeobiotopes associated with the sedimentary facies of the enclosing formation.A group of samples was analysed using the principal coordinate (PCO) method and the statistical significance(p{less than or equal to} 0.05) (p<=0.05) of individual binary responses of taxa along thefirst two PCO ordinationaxes was tested by general linear model (GLM). They revealed putative palaeoecological gradients: axis 1?disturbance caused by water levelfluctuations, axis 2-temperature, corresponding with the already assumedenvironmental and climatic change at the Hettangian/Sinemurian boundary. Multivariate analyses enabled theidentification of palaeoecological groups and thus inferring palaeogeographical conditions based on Mesozoicmaterials.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Palaeoecology
Plant ecogroups
Principle component analysis
Multivariate analysis
Jurassic
Romania
Megjelenés:Palaeogeography Palaeoclimatology Palaeoecology. - 446 (2016), p. 44-54. -
További szerzők:Popa, Mihai Emilian Mitka, Józef Bodor Emese (Budapest) Püspöki Zoltán (1972-) (geológus) McIntosh, Richard William (1978-) (geológus)
Pályázati támogatás:OTKA 100658
OTKA
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM046484
Első szerző:Willis, K. J.
Cím:The Late Quaternary environmental history of Bátorliget, N.E. Hungary / K. J. Willis, P. Sümegi, M. Braun, A. Tóth.
Dátum:1995
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Palaeogeography, Palaeoclimatology, Palaeoecology. - 118 : 1-2 (1995), p. 25-47. -
További szerzők:Sümegi Pál (1960-) (geológus, régész) Braun Mihály (1966-) (vegyész, analitikus) Tóth A. (vegyész)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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