Relations of petrographical and geochemical parameters in the middle Miocene Lavanttal lignite (Austria)

Bechtel, Achim; Reischenbacher, Doris; Sachsenhofer, Reinhard F.; Gratzer, Reinhard; Lücke, Andreas; Püttmann, Wilhelm

doi:10.1016/j.coal.2006.07.002

Cited by 52 publications

(23 citation statements)

References 63 publications

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“…The investigated SXCs have generally similar values of Pr/Ph ratio (1.03 -1.39; Table 2), which are in the range reported for Middle and Upper Miocene lignites in Austria (Bechtel et al 2007), Bulgaria (Zdravkov et al 2011), Poland (Fabiańska & Kurkiewicz 2013) and Turkey .…”

Section: Sxcsupporting

confidence: 54%

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Petrographic and biomarker analysis of xylite-rich coal from the Kolubara and Kostolac lignite basins (Pannonian Basin, Serbia)

Đoković¹,

Mitrović²,

Životić³

et al. 2018

Geologica Carpathica

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Abstract:The maceral and biomarker characteristics of 4 sublithotypes of xylite-rich coal (SXCs), pale yellow, dark yellow, brown and black, originating from the Kolubara and Kostolac lignite basins were determined. Based on these results, differences in sources and changes of organic matter (OM) resulting in formation of 4 SXCs were established. Conifers (particularly Cupressaceae, Taxodiaceae and Pinacea) had a significant impact on the precursor OM of all SXCs. The contribution of gymnosperm vs. angiosperm vegetation decreased in order pale yellow SXC > dark yellow SXC > brown SXC > black SXC. The distribution of non-hopanoid triterpenoids indicates that change of SXC colour from yellow to black is associated with reduced input of angiosperm plants from the Betulacea family. Differences in hopane distribution, bitumen content, proportion of short-chain n-alkanes and degree of aromatization of di-and triterpenoids of pale yellow SXC are controlled by microbial communities which took part in the diagenetic alteration of OM. The content of total huminites increased from black to pale yellow SXC, whereas contents of total liptinite and inertinite macerals showed the opposite trend. SXCs differ according to textinite/ulminite ratio, which sharply decreased from pale yellow to black SXC, reflecting increase in gelification of woody tissue. Regarding the composition of liptinite macerals, the SXCs mostly differ according to resinite/liptodetrinite and resinite/suberinite ratios, which are higher in yellow than in brown and black SXC. This result along with values of TOC/N ratio and Carbon Preference Index indicate that the contribution of well preserved woody material, including lignin tissue vs. the impact of epicuticular waxes decreased from yellow to black SXC.

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Section: Sxcsupporting

confidence: 54%

“…The values of the CPI (Carbon Preference Index; Bray & Evans 1961), ranging from 1.26 to 4.62 (Table 2), are in accordance with terrestrial immature OM (Bechtel et al 2002(Bechtel et al , 2007Zdravkov et al 2011Zdravkov et al , 2015. The lowest CPI in both basins is observed for pale yellow SXC (Table 2).…”

Section: Sxcmentioning

confidence: 67%

Petrographic and biomarker analysis of xylite-rich coal from the Kolubara and Kostolac lignite basins (Pannonian Basin, Serbia)

Đoković¹,

Mitrović²,

Životić³

et al. 2018

Geologica Carpathica

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“…Several studies have reported that the sulfur origin of coals containing medium to high sulfur content could be derived from sulfate-and sulfide-rich source rocks via uplift and erosion and later transported to the mire through surface-and groundwater during peat growth in continental basins [85][86][87]. In addition, a high total sulfur content and an abundance of syngenetic pyrite crystals were also reported in coal seams within continental basins where palaeomires were fed by sulfate-rich groundwater [18,20,57,[87][88][89][90]. Furthermore, leached waters from tuff layers and volcanic rocks in adjacent areas, and S-rich epigenetic hydrothermal solutions into coal seams, could elevate the sulfur contents of coals [19,91,92].…”

Section: Interpretation Of Sulfur Enrichmentmentioning

confidence: 99%

Peat-Forming Environments and Evolution of Thick Coal Seam in Shengli Coalfield, China: Evidence from Geochemistry, Coal Petrology, and Palynology

et al. 2018

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Due to the importance of the wide occurrence of thick coal seams for Chinese coal resources, the origins of these seams have received considerable attention. Using the Early Cretaceous No. 5 coal seam with a thickness of 16.8 m in Inner Mongolia as a case study, this paper presents a systematic investigation of the coal petrology, geochemistry, and palynology of 19 coal samples to explain the origin and evolution of peat accumulation. The results indicate that the No. 5 coal seam is generally characterized by low rank (lignite), dominant huminite (average = 82.3%), intermediate ash yield (average = 16.03%), and sulfur content (average = 1.12%). The proportion of spores generally increases from the bottom to the top of the coal seam, whereas the proportion of pollen decreases. The vegetation in the coal seam is dominated by gymnosperms at the bottom and by ferns at the top. The paleographic precursor peat was most likely accumulated in the lakeshore where herbaceous and bushy helophytes were dominant. The total sulfur content was positively related to the huminite content. The sulfur content was possibly derived from bacterial action with sulfur brought in via marine incursions. Three overall declining-increasing values of carbon isotopes within the No. 5 coal seam possibly indicated three general cooling trends during peat accumulation. The environment of peat accumulation included three cycles, including one drying-wetting-drying in the bottom part and two drying-upwards cycles in the upper part. These cycles of the peat-accumulation environment could likely be ascribed to climate change because of their good agreement with humidity signals from plant types at that stage.

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“…1 and 2), initially by BeckMannagetta (1952), and later by Bassir (1964), Bechtel et al (2007), and Reischenbacher et al (2007), and most recently by Reischenbacher and Sachsenhofer (2013). The Lavanttal Basin is situated in the southern part of the Eastern Alps and, palaeogeographically, at the northwestern margin of the Central Paratethys.…”

Section: Geological Background Of Study Areamentioning

confidence: 99%

“…12.7-11.6 Ma) and early Pannonian (e.g. Beck-Mannagetta, 1952;Bechtel et al, 2007;Reischenbacher et al, 2007;Reischenbacher and Sachsenhofer, 2013).…”

Section: Geological Background Of Study Areamentioning

confidence: 99%

Middle Miocene macrofloral elements from the Lavanttal Basin, Austria, Part I. Ginkgo adiantoides (Unger) Heer

Meller¹,

Zetter²,

Hassler³

et al. 2015

AJES

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A new locality, at Schaßbach (Carinthia, Austria), within the Neogene Lavanttal Basin has yielded numerous well preserved early Badenian (Langhian) plant macrofossils. This paper, which is the first in a series of papers that describe the macrofossil remains from Schaßbach, provides a geological and chronostratigraphic framework of the study area and summarizes previous research on plant macrofossils from the Lavanttal Basin. Here, Cenozoic leaf fossils of Ginkgo with preserved cuticles showing epidermal features are described for the first time from Austria, and from the pre-Pliocene of the Central Paratethys region. The Ginkgo foliage remains are currently one of the oldest Cenozoic fossils representing this genus in Central Europe. The fossils are considered to reflect trees growing outside lowland wetland areas and originated from the riparian vegetation. Based on the current habitat and fossil occurrence of Cenozoic ginkgos, the early Badenian flora in the Lavanttal area likely endured a warm temperate and humid climate.Aus der neuen Lokalität Schaßbach (unteres Badenium, unteres Langhium) im neogenen Lavanttal Becken wurden zahlreiche gut erhaltene Pflanzenfossilien gesammelt, die derzeit untersucht werden. In der vorliegenden Arbeit wird ein geologischer Über-blick gegeben, frühere paläobotanische Arbeiten werden zusammenfassend dargestellt und das erste systematisch untersuchte Makroflorenelement aus Schaßbach wird beschrieben: Ginkgoaceae. Känozoische Blattfossilien von Ginkgo adiantoides (Unger) Heer mit gut erhaltenen Kutikularstrukturen sind hier zum ersten Mal aus Österreich und dem prä-Pliozän der Zentralen Paratethys Region beschrieben. Die Ginkgo-Blätter aus Schaßbach repräsentieren derzeit eines der ältesten Vorkommen der Gattung im Känozoikum Mitteleuropas. Die Bäume wuchsen vermutlich außerhalb der niedrig gelegenen Feuchtgebiete als Teil der orographisch höher gelegenen Umgebungsvegetation. Anhand der heutigen und fossilen Vorkommen lässt sich vermuten, dass die mittelmiozäne (Unter-Badenium) Flora des Lavanttals unter warm gemäßigtem und humidem Klima wuchs._____________________

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Relations of petrographical and geochemical parameters in the middle Miocene Lavanttal lignite (Austria)

Cited by 52 publications

References 63 publications

Petrographic and biomarker analysis of xylite-rich coal from the Kolubara and Kostolac lignite basins (Pannonian Basin, Serbia)

Petrographic and biomarker analysis of xylite-rich coal from the Kolubara and Kostolac lignite basins (Pannonian Basin, Serbia)

Peat-Forming Environments and Evolution of Thick Coal Seam in Shengli Coalfield, China: Evidence from Geochemistry, Coal Petrology, and Palynology

Middle Miocene macrofloral elements from the Lavanttal Basin, Austria, Part I. Ginkgo adiantoides (Unger) Heer

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