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  • PANGAEA  (4)
  • London : The Geological Society  (1)
Publikationsart
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  • 1
    Buch
    Buch
    Conservation palaeobiology of marine ecosystems (2023)
    London : The Geological Society
    Details Verfügbarkeit
    Schlagwort(e): Aufsatzsammlung ; Fossile Meerestiere ; Paläobiogeografie ; Artenreichtum ; Paläontologie ; Aufschluss ; Fundstätte ; Fossil ; Meeressediment ; Historische Geologie ; Geobiologie ; Palökologie ; Biodiversität ; Meeresökosystem ; Geologische Stätte ; Paläobiologie ; Umweltveränderung ; Auswirkung ; Historische Umweltforschung
    Materialart: Buch
    Seiten: vi, 402 Seiten , Illustrationen, Karten, Diagramme
    ISBN: 9781786205773
    Serie: Geological Society special publication no. 529
    Sprache: Englisch
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
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    Miocene microflora and palaeoclimatic estimates of the Stetten section (Austria) (2011)
    PANGAEA
    In:  Supplement to: Kern, Andrea; Harzhauser, Mathias; Mandic, Oleg; Roetzel, Reinhard; Coric, Stjepan; Bruch, Angela A; Zuschin, Martin (2011): Millennial-scale vegetation dynamics in an estuary at the onset of the Miocene Climate Optimum. Palaeogeography, Palaeoclimatology, Palaeoecology, 304(3-4), 247-261, https://doi.org/10.1016/j.palaeo.2010.07.014
    Details
    Publikationsdatum: 2023-01-13
    Beschreibung: Pollen analyses have been proven to possess the possibility to decipher rapid vegetational and climate shifts in Neogene sedimentary records. Herein, a c. 21-kyr-long transgression-regression cycle from the Lower Austrian locality Stetten is analysed in detail to evaluate climatic benchmarks for the early phase of the Middle Miocene Climate Optimum and to estimate the pace of environmental change. Based on the Coexistence Approach, a very clear signal of seasonality can be reconstructed. A warm and wet summer season with c. 204-236 mm precipitation during the wettest month was opposed by a rather dry winter season with precipitation of c. 9-24 mm during the driest month. The mean annual temperature ranged between 15.7 and 20.8 °C, with about 9.6-13.3 °C during the cold season and 24.7-27.9 °C during the warmest month. In contrast, today's climate of this area, with an annual temperature of 9.8 °C and 660 mm rainfall, is characterized by the winter season (mean temperature: -1.4 °C, mean precipitation: 39 mm) and a summer mean temperature of 19.9 °C (mean precipitation: 84 mm). Different modes of environmental shifts shaped the composition of the vegetation. Within few millennia, marshes and salt marshes with abundant Cyperaceae rapidly graded into Taxodiaceae swamps. This quick but gradual process was interrupted by swift marine ingressions which took place on a decadal to centennial scale. The transgression is accompanied by blooms of dinoflagellates and of the green alga Prasinophyta and an increase in Abies and Picea. Afterwards, the retreat of the sea and the progradation of estuarine and wetland settings were a gradual progress again. Despite a clear sedimentological cyclicity, which is related to the 21-kyr precessional forcing, the climate data show little variation. This missing pattern might be due to the buffering of the precessional-related climate signal by the subtropical vegetation. Another explanation could be the method-inherent broad range of climate-parameter estimates that could cover small scale climatic changes.
    Schlagwort(e): Austria; NECLIME; Neogene Climate Evolution in Eurasia; Paleontological sampling; PALSAMP; SPK-C; Stetten_section
    Materialart: Dataset
    Format: application/zip, 2 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 3
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    (Appendix A) Miocene palaeoclimatic estimates based on palynomorphs from Stetten section (Austria) (2011)
    PANGAEA
    Details
    Publikationsdatum: 2023-01-13
    Schlagwort(e): Austria; Coexistence Approach (Mosbrugger, V & Utescher, T, 1997); NECLIME; Neogene Climate Evolution in Eurasia; Paleontological sampling; PALSAMP; Precipitation, annual mean, maximum; Precipitation, annual mean, minimum; Precipitation, warmest month, maximum; Precipitation, warmest month, minimum; Precipitation of the driest month maximum; Precipitation of the driest month minimum; Precipitation of the wettest month maximum; Precipitation of the wettest month minimum; Sample code/label; SPK-C; Stetten_section; Taxa analyzed; Temperature, annual mean, maximum; Temperature, annual mean, minimum; Temperature, coldest month, maximum; Temperature, coldest month, minimum; Temperature, warmest month, maximum; Temperature, warmest month, minimum
    Materialart: Dataset
    Format: text/tab-separated-values, 400 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 4
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    Stable isotope ratios of a oyster Hyotissa hyotis from the northern Red Sea (2016)
    PANGAEA
    In:  Supplement to: Titschack, Jürgen; Zuschin, Martin; Spötl, Christoph; Baal, C (2010): The giant oyster Hyotissa hyotis from the northern Red Sea as a decadal-scale archive for seasonal environmental fluctuations in coral reef habitats. Coral Reefs, 29(4), 1061-1075, https://doi.org/10.1007/s00338-010-0665-7
    Details
    Publikationsdatum: 2023-02-12
    Beschreibung: This study explores the giant oyster Hyotissa hyotis as a novel environmental archive in tropical reef environments of the Indo-Pacific. The species is a typical accessory component in coral reefs, can reach sizes of tens of centimetres, and dates back to the Late Pleistocene. Here, a 70.2-mm-long oxygen and carbon isotope transect through the shell of a specimen collected at Safaga Bay, northern Red Sea, in May 1996, is presented. The transect runs perpendicularly to the foliate and vesicular layers of the inner ostracum near the ligament area of the oyster. The measured d18O and d13C records show sinusoidal fluctuations, which are independent of shell microstructure. The d13C fluctuations exhibit the same wavelength as the d18O fluctuations but are phase shifted. The d18O record reflects the sea surface temperature variations from 1957 until 1996, possibly additionally influenced by the local evaporation. Due to locally enhanced evaporation in the semi-enclosed Safaga Bay, the d18Oseawater value is estimated at 2.17 per mil, i.e., 0.3-0.8 per mil higher than published open surface water d18O values (1.36-1.85 per mil) from the region. The mean water temperature deviates by only 0.4°C from the expected value, and the minimum and maximum values are 0.5°C lower and 2.9°C higher, respectively. When comparing the mean monthly values, however, the sea surface temperature discrepancy between reconstructed and global grid datasets is always 〈1.0°C. The d13C signal is weakly negatively correlated with regional chlorophyll a concentration and with the sunshine duration, which may reflect changes in the bivalve's respiration. The study emphasises the palaeogeographic context in isotope studies based on fossils, because coastal embayments might not reflect open-water oceanographic conditions.
    Schlagwort(e): Age; AGE; Bay of Safaga; DISTANCE; Hyotissa_hyotis; Hyotissa hyotis, δ13C; Hyotissa hyotis, δ18O; Mass spectrometer DeltaPlusXL coupled to a Gasbench II; Number
    Materialart: Dataset
    Format: text/tab-separated-values, 1032 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 5
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    (Table 1) Spores and pollen abundances of the Miocene Stetten section (Austria) (2011)
    PANGAEA
    Details
    Publikationsdatum: 2023-07-10
    Schlagwort(e): Abies; Algae; Alnus; Amaranthaceae; Apiaceae; Araliaceae; Arecaceae; Artemisia; Asteraceae; Austria; Betula; Carpinus; Carya; Castanea; Cathaya; Celtis; Chenopodiaceae; Counting, palynology; Cyperaceae; Dinoflagellates; Elaeagnaceae; Engelhardtia; Ephedra; Ericaceae; Euphorbiaceae; Fagaceae; Fagus; Fraxinus; Ilex; Liquidambar; Lonicera; Loranthaceae; Lythraceae; Mastixiaceae; Myrica; NECLIME; Neogene Climate Evolution in Eurasia; Number of taxa; Nyssa; Oleaceae; Paleontological sampling; PALSAMP; Picea; Pinus; Platycarya; Poaceae; Pollen, angiosperms; Pollen, gymnosperms; Pterocarya; Quercus; Rubiaceae; Rutaceae; Salix; Sample code/label; Sapotaceae; Sciadopitys; Sparganium; SPK-C; Spores; Stetten_section; Symplocos; Taxodiaceae; Tiliaceae; Tricolporopollenites; Typha; Ulmus; Vitaceae; Zelkova
    Materialart: Dataset
    Format: text/tab-separated-values, 1440 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
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