Původ relaminantu v Českém masivu během variské orogeneze

Název projektu anglicky
Origin of the relaminant in the Bohemian Massif during the Variscan orogeny
Anotace anglicky
The granulite-gneiss extrusions in the Bohemian Massif are interpreted as parts of the lower plate, subducted, relaminated below the upper plate and exhumed as kilometre-scale trans-lithospheric diapirs through upper plate. Because dominated by metagranites, it is repeatedly stated that they originated from continent subduction. Many studies were dedicated to their tectono-metamorphic Variscan evolution. Almost missing are studies trying to understand their paleo-environment that allowed such unprecedented travel of rocks through mantle. We aim to question the paradigm of their continent origin, by testing also other hypothesis that include subduction of magma-poor or magma-rich passive margin, and continental or oceanic magmatic arc. For decisions about the paleo-environment type, we will correlate the age and isotopic pattern in protolith and inherited zircon in metamorphosed magmatic rocks and in detrital zircon in metasediments, and whole rock geochemical and isotopic fingerprints, with units recently identified as magmatic arcs and possibly as magma-rich passive margin.

Kategorie VaV
ZV - Základní výzkum
OECD FORD - hlavní obor
10505 - Geology
OECD FORD - vedlejší obor
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OECD FORD - další vedlejší obor
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CEP - odpovídající obory <br>(dle <a href="http://www.vyzkum.cz/storage/att/E6EF7938F0E854BAE520AC119FB22E8D/Prevodnik_oboru_Frascati.pdf">převodníku</a>)
DB - Geologie a mineralogie

Důvěrnost údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Systémové označení dodávky dat
CEP24-GA0-GA-R
Datum dodání záznamu
19. 2. 2024

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