Trans-lithospheric diapirism explains the presence of ultra-high pressure rocks in the European Variscides

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F21%3A00000011" target="_blank" >RIV/00025798:_____/21:00000011 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/21:10429339
Result on the web
<a href="https://www.nature.com/articles/s43247-021-00122-w" target="_blank" >https://www.nature.com/articles/s43247-021-00122-w</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s43247-021-00122-w" target="_blank" >10.1038/s43247-021-00122-w</a>

Result language
angličtina
Original language name
Trans-lithospheric diapirism explains the presence of ultra-high pressure rocks in the European Variscides
Original language description
The classical concept of collisional orogens suggests that mountain belts form as a crustal wedge between the downgoing and overriding plates. However, this orogenic style is not compatible with the presence of (ultra-)high pressure crustal and mantle rocks far from the plate interface in the Bohemian Massif of Central Europe. Here we use a comparison between geological observations and thermo-mechanical numerical models to explain their formation. We suggest that continental crust was first deeply subducted, then flowed laterally underneath the lithosphere and eventually rose in the form of large partially molten translithospheric diapirs. We further show that trans-lithospheric diapirism produces a specific rock association of (ultra-)high pressure crustal and mantle rocks and ultra-potassic magmas that alternates with the less metamorphosed rocks of the upper plate. Similar rock associationshave been described in other convergent zones, both modern and ancient. Wespeculate that trans-lithospheric diapirism could be a common process.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10505 - Geology

Project
<a href="/en/project/GA19-25035S" target="_blank" >GA19-25035S: Granulite–migmatite domes - insights to Devonian and Carboniferous evolution in the Variscan belt</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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