Time-scale of deformation and intertectonic phases revealed by P?T?D?t relationships in the orogenic middle crust of the Orlica-Snieznik Dome, Polish/Czech Central Sudetes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F14%3A00000080" target="_blank" >RIV/00025798:_____/14:00000080 - isvavai.cz</a>
Result on the web
<a href="http://onlinelibrary.wiley.com/doi/10.1111/jmg.12103/abstract" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/jmg.12103/abstract</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/jmg.12103" target="_blank" >10.1111/jmg.12103</a>

Result language
angličtina
Original language name
Time-scale of deformation and intertectonic phases revealed by P?T?D?t relationships in the orogenic middle crust of the Orlica-Snieznik Dome, Polish/Czech Central Sudetes
Original language description
A section of the orogenic middle crust (Orlica-Snieznik Dome) was examined to constrain the duration and significance of deformation (D) and intertectonic (I) phases. Three deformation events produced an initial subhorizontal foliation S1, a subverticalfoliation S2 and a late subhorizontal cleavage S3 (D3). The synform was intruded by pre-, syn- and post-D2 granitoid sheets. The P?T path, obtained by modelling the stability of parageneses and garnet zoning, shows near-isobaric heating from ~4 kbar/485°C to ~4.75 kbar/575 °C during I1?2. This was followed by a progression to 4?5 kbar/580?625 °C and a pressure decrease to 3?4 kbar during D2. Pressure decrease below 3 kbar is ascribed to I2?3, whereas cooling below ~500 °C occurred during D3. In the dated mica schist sample, garnet rims show strong Lu enrichment, oscillatory Lu zoning and a slight Ca increase, related to allanite breakdown coeval with staurolite appearance. As Lu-rich garnet rims dominate the Lu?Hf budget, the 344+/-3 M
Czech name
—
Czech description
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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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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)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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