Show simple item record

dc.contributor.authorMazur, Stanislaw
dc.contributor.authorSzczepanski, Jacek
dc.contributor.authorTurniak, Krzysztof
dc.contributor.authorMcNaughton, Neal
dc.date.accessioned2017-01-30T11:20:58Z
dc.date.available2017-01-30T11:20:58Z
dc.date.created2013-03-04T20:00:55Z
dc.date.issued2012
dc.identifier.citationMazur, Stanislaw and Szczepanski, Jacek and Turniak, Krzysztof and McNaughton, Neal. 2012. Location of the Rheic suture in the eastern Bohemian Massif: evidence from detrital zircon data. Terra Nova 24 (3): pp. 199-206.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/10785
dc.identifier.doi10.1111/j.1365-3121.2011.01053.x
dc.description.abstract

Three detrital zircon concentrates from the metasediments of the Orlica-Snieznik dome, Bohemian Massif, have been dated using Sensitive High Resolution Ion Microprobe. They yielded Precambrian age spectra similar to those that are characteristic of the Cadomian terranes: (1) Archaean and Palaeoproterozoic zircons scattered between 3380 and 1860 Ma, and (2) abundant Neoproterozoic zircons dated at 770–560 Ma. Two of the analysed samples also contain Early Cambrian and Early-Late Cambrian zircons. The estimated maximum sedimentation ages are: 563 ± 6 Ma for the Mlynowiec paragneisses, 532 ± 6 Ma for the Stronie schist and 490 ± 9 Ma for the Goszów quartzite that are interpreted as three distinct metasedimentary successions. They represent a Neoproterozoic back-arc basin, Early Cambrian incipient rift basin and a Lower Ordovician post-rift succession respectively. These successions are the deformed and metamorphosed, allochthonous equivalent to the passive Saxo-Thuringian margin. They were subducted during a Variscan collision and then exhumed in front of the rigid buttress of Brunia/East Avalonia.hree detrital zircon concentrates from the metasediments of the Orlica-Śnieżnik dome, Bohemian Massif, have been dated using Sensitive High Resolution Ion Microprobe. They yielded Precambrian age spectra similar to those that are characteristic of the Cadomian terranes: (1) Archaean and Palaeoproterozoic zircons scattered between 3380 and 1860 Ma, and (2) abundant Neoproterozoic zircons dated at 770–560 Ma. Two of the analysed samples also contain Early Cambrian and Early-Late Cambrian zircons. The estimated maximum sedimentation ages are: 563 ± 6 Ma for the Młynowiec paragneisses, 532 ± 6 Ma for the Stronie schist and 490 ± 9 Ma for the Goszów quartzite that are interpreted as three distinct metasedimentary successions. They represent a Neoproterozoic back-arc basin, Early Cambrian incipient rift basin and a Lower Ordovician post-rift succession respectively. These successions are the deformed and metamorphosed, allochthonous equivalent to the passive Saxo-Thuringian margin. They were subducted during a Variscan collision and then exhumed in front of the rigid buttress of Brunia/East Avalonia.

dc.publisherBlackwell Publishing Ltd
dc.titleLocation of the Rheic suture in the eastern Bohemian Massif: evidence from detrital zircon data
dc.typeJournal Article
dcterms.source.volume24
dcterms.source.startPage199
dcterms.source.endPage206
dcterms.source.issn0954-4879
dcterms.source.titleTerra Nova
curtin.department
curtin.accessStatusFulltext not available


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record