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dc.contributor.authorDanišík, Martin
dc.contributor.authorFodor, L.
dc.contributor.authorDunkl, I.
dc.contributor.authorGerdes, A.
dc.contributor.authorCsizmeg, J.
dc.contributor.authorHámor-Vidó, M.
dc.contributor.authorEvans, Noreen
dc.date.accessioned2017-01-30T13:38:35Z
dc.date.available2017-01-30T13:38:35Z
dc.date.created2015-10-29T04:09:13Z
dc.date.issued2015
dc.identifier.citationDanišík, M. and Fodor, L. and Dunkl, I. and Gerdes, A. and Csizmeg, J. and Hámor-Vidó, M. and Evans, N. 2015. A multi-system geochronology in the Ad-3 borehole, Pannonian Basin (Hungary) with implications for dating volcanic rocks by low-temperature thermochronology and for interpretation of (U-Th)/He data. Terra Nova. 27 (4): pp. 258-269.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/33672
dc.identifier.doi10.1111/ter.12155
dc.description.abstract

Independent geochronological and thermal modelling approaches are applied to a biostratigraphically exceptionally well-controlled borehole, Alcsútdoboz-3 (Ad-3), in order to constrain the age of Cenozoic geodynamic events in the western Pannonian Basin and to test the efficacy of the methods for dating volcanic rocks. Apatite fission track and zircon U-Pb data show two volcanic phases of Middle Eocene (43.4-39.0 Ma) and Early Oligocene (32.72 ± 0.15 Ma) age respectively. Apatite (U-Th)/He ages (23.8-14.8 Ma) and independent thermal and subsidence history models reveal a brief period of heating to 55-70 °C at ~17 Ma caused by an increased heat-flow related to crustal thinning and mantle upwelling. Our results demonstrate that, contrary to common perception, the apatite (U-Th)/He method is likely to record 'apparent' or 'mixed' ages resulting from subsequent thermal events rather than 'cooling' or 'eruption' ages directly related to distinct geological events. It follows that a direct conversion of 'apparent' or 'mixed' (U-Th)/He ages into cooling, exhumation or erosion rates is incorrect.

dc.publisherBlackwell Publishing Ltd
dc.titleA multi-system geochronology in the Ad-3 borehole, Pannonian Basin (Hungary) with implications for dating volcanic rocks by low-temperature thermochronology and for interpretation of (U-Th)/He data
dc.typeJournal Article
dcterms.source.volume27
dcterms.source.number4
dcterms.source.startPage258
dcterms.source.endPage269
dcterms.source.issn0954-4879
dcterms.source.titleTerra Nova
curtin.departmentDepartment of Applied Geology
curtin.accessStatusFulltext not available


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