期刊
GEOLOGICA CARPATHICA
卷 70, 期 5, 页码 386-+出版社
SLOVAK ACAD SCIENCES GEOLOGICAL INST
DOI: 10.2478/geoca-2019-0022
关键词
40Ar/39Ar dating; fission track; Vienna Basin; middle Miocene
资金
- Slovak Research and Development Agency [APVV-16-0121, APVV-15-0575, APVV-0315-12]
- Netherlands Geosciences Foundation (ALW)
- Netherlands Organization for Scientific Research (NWO) by VICI grant [865.10.011]
- [UK/70/2019]
- [UK/211/2019]
The Kuchyna tuff is found on the Eastern margin of the Vienna Basin and was formed by felsic volcanism. The ArAr single grain sanidine method was applied and resulted in an age of 15.23 +/- 0.04 Ma, which can be interpreted as the age of the eruption. The obtained numerical age is in accordance with the subtropical climate inferred by the presence of fossil leaves that originated in an evergreen broadleaved forest. Furthermore, the described volcanism was connected with the syn-rift stage of the back-arc Pannonian Basin system. The sedimentological data from the underlying sandy mudstones indicate alluvial environment what confirms terrestrial conditions during deposition. Moreover, the tuff deposition probably occurred shortly before the Badenian transgression of the Central Paratethys Sea.
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