First finding of microdiamond, coesite and other UHP phases in felsic granulites in the Moldanubian Zone: Implications for deep subduction and a revised geodynamic model for Variscan Orogeny in the Bohemian Massif

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F14%3A10282198" target="_blank" >RIV/00216208:11310/14:10282198 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.lithos.2014.05.025" target="_blank" >http://dx.doi.org/10.1016/j.lithos.2014.05.025</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.lithos.2014.05.025" target="_blank" >10.1016/j.lithos.2014.05.025</a>

Result language
angličtina
Original language name
First finding of microdiamond, coesite and other UHP phases in felsic granulites in the Moldanubian Zone: Implications for deep subduction and a revised geodynamic model for Variscan Orogeny in the Bohemian Massif
Original language description
Heavy mineral fractions and polished thin sections from felsic granulites from the Moldanubian Zone of the Bohemian Massif were thoroughly studied by means of Raman microspectroscopy combined with optical microscopy and scanning electron microscopy. Thefollowing phases were identified, among others, as inclusions in robust minerals such as garnet and zircon: Diamond, characterized by an intense narrow peak at 1332 cm(-1), was found in two inclusions in zircon. They have a size of similar to 5 mu m. Coesite, identified by its very characteristic peak at similar to 520 cm(-1), was found in an inclusion in garnet together with quartz. Coesite has been almost completely transformed into quartz; only minor coesite nano-domains remain. Kumdykolite, the orthorhombic polymorph of NaAlSi3O8, characterized by strong peaks at 220,456 and 492 cm(-1), occurs either as single crystals or as a part of multiphase inclusions in garnet and in zircon along with other mineral phases such as K-feldspar, p
Czech name
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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/GA13-06958S" target="_blank" >GA13-06958S: Mineral and textural signatures recording pre-exhumation and pre-collision history of the HP/UHPM rocks in orogenic zone</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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