The origin of zircon and the significance of U?Pb ages in high-grade metamorphic rocks: a case study from the Variscan orogenic root (Vosges Mountains, NE France)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F12%3A00000586" target="_blank" >RIV/00025798:_____/12:00000586 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s00410-012-0781-1" target="_blank" >http://dx.doi.org/10.1007/s00410-012-0781-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00410-012-0781-1" target="_blank" >10.1007/s00410-012-0781-1</a>
Alternative languages
Result language
angličtina
Original language name
The origin of zircon and the significance of U?Pb ages in high-grade metamorphic rocks: a case study from the Variscan orogenic root (Vosges Mountains, NE France)
Original language description
U?Pb zircon dating is combined with petrology, Zr-in-rutile thermometry and mineral equilibria modelling to discuss zircon petrogenesis and the age of metamorphism in three units of the Variscan Vosges Mountains (NE France). The monotonous gneiss unit shows results at 700?500 Ma, but no Variscan ages. The varied gneiss unit preserves ages between 600 and 460 Ma and a Variscan group at 340?335 Ma. Zircon analyses from the felsic granulite unit define a continuous array of ages between 500 and 340 Ma. Invaried gneiss samples, zoned garnet includes kyanite and rutile and is surrounded by matrix sillimanite and cordierite. In a pseudosection, it points to peak conditions of *16 kbar/850 C followed by isothermal decompression to 8?10 kbar/820?860 C. In felsic granulite samples, the assemblage K-feldspar? garnet?kyanite?Zr-rich rutile is replaced by sillimanite and Zr-poor rutile. Modelling these assemblages supports minimum conditions of *13 kbar/925 C, and a subsequent P?T decrease to 6.5
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DB - Geology and mineralogy
OECD FORD branch
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Result continuities
Project
<a href="/en/project/LK11202" target="_blank" >LK11202: The role of Paleozoic accretionary and collisanal orogens on the formation and growth of continental crust</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Contributions to Mineralogy and Petrology
ISSN
0010-7999
e-ISSN
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Volume of the periodical
164
Issue of the periodical within the volume
6
Country of publishing house
DE - GERMANY
Number of pages
23
Pages from-to
935-957
UT code for WoS article
000310999100002
EID of the result in the Scopus database
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