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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/00216208:11310/21:10429339

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

<a href="/cs/project/GA19-25035S" target="_blank" >GA19-25035S: Granulito–migmatitové dómy - náhled do devonského a karbonského vývoje Variského orogenního pásma</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Communications Earth & Environment

ISSN

2662-4435

e-ISSN

—

Svazek periodika

2

Číslo periodika v rámci svazku

1 : 56

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

nestránkováno

Kód UT WoS článku

000665767200001

EID výsledku v databázi Scopus

2-s2.0-85108614671