| ROETZEL, Reinhard, Arjan DE LEEUW, Oleg MANDIC, Emo MÁRTON, Slavomír NEHYBA, Klaudia F. KUIPER, Robert SCHOLGER a Ingeborg WIMMER-FREY. Lower Miocene (upper Burdigalian, Karpatian) volcanic ashfall at the south-eastern margin of the Bohemian Massif in Austria – New evidence from Ar/ Ar-dating, palaeomagnetic, geochemical and mineralogical investigations. Austrian Journal of Earth Sciences. Wien: Osterreichische Geologische Geselschaft, 2014, roč. 107, č. 2, s. 2-22. ISSN 0251-7493. |
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@article{1214572,
author = {Roetzel, Reinhard and de Leeuw, Arjan and Mandic, Oleg and Márton, Emo and Nehyba, Slavomír and Kuiper, Klaudia F. and Scholger, Robert and WimmerandFrey, Ingeborg},
article_location = {Wien},
article_number = {2},
keywords = {40 39 Ar/ Ar - geochronology-magnetostratigraphy-zircon studies-geochemistry-Burdigalian Karpatian Straning},
language = {eng},
issn = {0251-7493},
journal = {Austrian Journal of Earth Sciences},
title = {Lower Miocene (upper Burdigalian, Karpatian) volcanic ashfall at the south-eastern margin of the Bohemian Massif in Austria – New evidence from Ar/ Ar-dating, palaeomagnetic, geochemical and mineralogical investigations},
volume = {107},
year = {2014}
}
TY - JOUR
ID - 1214572
AU - Roetzel, Reinhard - de Leeuw, Arjan - Mandic, Oleg - Márton, Emo - Nehyba, Slavomír - Kuiper, Klaudia F. - Scholger, Robert - Wimmer-Frey, Ingeborg
PY - 2014
TI - Lower Miocene (upper Burdigalian, Karpatian) volcanic ashfall at the south-eastern margin of the Bohemian Massif in Austria – New evidence from Ar/ Ar-dating, palaeomagnetic, geochemical and mineralogical investigations
JF - Austrian Journal of Earth Sciences
VL - 107
IS - 2
SP - 2-22
EP - 2-22
PB - Osterreichische Geologische Geselschaft
SN - 02517493
KW - 40 39 Ar/ Ar - geochronology-magnetostratigraphy-zircon studies-geochemistry-Burdigalian Karpatian Straning
N2 - An Early Miocene acidic tuff that accumulated in a small tectonic graben at the south-eastern margin of the Bohemian Massif in 40 39 north-eastern Austria was dated by means of Ar/ Ar dating. Feldspar crystals from the tuff have an inverse isochron age of 17.23 ± 0.18 Ma, which is interpreted to reflect its crystallisation age. The tuff shows a reversed palaeomagnetic polarity and can be correlard ted with chron C5Cr of the late Burdigalian (early Karpatian) and with the lowstand systems tract (LST) of the Bur 4 global 3 order sea level cycle. The tephra originates from acid (rhyodacitic to dacitic) calc-alkaline arc volcanism. Our study demonstrates that the investigated volcaniclastics are significantly different from other Burdigalian (Eggenburgian, Ottnangian) and Langhian (early Badenian) tephra from the area with regard to their volcanic zircon and Rare Earth element (REE) composition. The volcanic source of the Straning tuffs might be traced back to the western Inner Carpathian volcanic arc. The tuffs are most likely genetically related to the Middle Rhyolite Tuff (late Burdigalian, Karpatian) of northern Hungary and southern Slovakia.
ER -
ROETZEL, Reinhard, Arjan DE LEEUW, Oleg MANDIC, Emo MÁRTON, Slavomír NEHYBA, Klaudia F. KUIPER, Robert SCHOLGER a Ingeborg WIMMER-FREY. Lower Miocene (upper Burdigalian, Karpatian) volcanic ashfall at the south-eastern margin of the Bohemian Massif in Austria – New evidence from Ar/ Ar-dating, palaeomagnetic, geochemical and mineralogical investigations. \textit{Austrian Journal of Earth Sciences}. Wien: Osterreichische Geologische Geselschaft, 2014, roč.~107, č.~2, s.~2-22. ISSN~0251-7493.
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