Eclogite facies rocks of the Monotonous unit, clue to Variscan suture in the Moldanubian Zone (Bohemian Massif)
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F13%3A10360232" target="_blank" >RIV/00216208:11310/13:10360232 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1016/j.lithos.2013.07.015" target="_blank" >http://dx.doi.org/10.1016/j.lithos.2013.07.015</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.lithos.2013.07.015" target="_blank" >10.1016/j.lithos.2013.07.015</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Eclogite facies rocks of the Monotonous unit, clue to Variscan suture in the Moldanubian Zone (Bohemian Massif)
Popis výsledku v původním jazyce
The formation and exhumation of Variscan high- to ultrahigh-pressure metamorphic rocks from the Moldanubian Zone in the Bohemian Massif are the subject of controversy regarding their unclear relationship to possible subduction zones. In this paper we present the results of a petrological study of eclogites that occur together with serpentinites within amphibolite facies gneisses in the Moldanubian Zone, east of the Tepla-Barrandian Block. More than 100 bodies of retrogressed eclogite and serpentinite follow an approximately 250 km long SW-NE trending zone in the central part of the Bohemian Massif. Together with surrounding gneisses, the eclogites share a medium to low-pressure amphibolite facies metamorphism. P-T conditions estimated for the eclogite facies stage indicate a relatively low-temperature geothermal gradient similar to those observed in the Saxothuringian Zone, which occurs north and northwest of the Tepla-Barrandian Block. The presence and distribution of eclogites and comparison of their P-T and age data with HP-UHPM rocks in other units in the Bohemian Massif allow us to constrain the Variscan suture, which straddles the SE of the Tepla-Barrandian Block. The existence of this suture in relation to available geotectonic models and its possible continuation through other allochthonous units along the European Variscan Belt are discussed. (C) 2013 Elsevier B.V. All rights reserved.
Název v anglickém jazyce
Eclogite facies rocks of the Monotonous unit, clue to Variscan suture in the Moldanubian Zone (Bohemian Massif)
Popis výsledku anglicky
The formation and exhumation of Variscan high- to ultrahigh-pressure metamorphic rocks from the Moldanubian Zone in the Bohemian Massif are the subject of controversy regarding their unclear relationship to possible subduction zones. In this paper we present the results of a petrological study of eclogites that occur together with serpentinites within amphibolite facies gneisses in the Moldanubian Zone, east of the Tepla-Barrandian Block. More than 100 bodies of retrogressed eclogite and serpentinite follow an approximately 250 km long SW-NE trending zone in the central part of the Bohemian Massif. Together with surrounding gneisses, the eclogites share a medium to low-pressure amphibolite facies metamorphism. P-T conditions estimated for the eclogite facies stage indicate a relatively low-temperature geothermal gradient similar to those observed in the Saxothuringian Zone, which occurs north and northwest of the Tepla-Barrandian Block. The presence and distribution of eclogites and comparison of their P-T and age data with HP-UHPM rocks in other units in the Bohemian Massif allow us to constrain the Variscan suture, which straddles the SE of the Tepla-Barrandian Block. The existence of this suture in relation to available geotectonic models and its possible continuation through other allochthonous units along the European Variscan Belt are discussed. (C) 2013 Elsevier B.V. All rights reserved.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10505 - Geology
Návaznosti výsledku
Projekt
<a href="/cs/project/GA13-06958S" target="_blank" >GA13-06958S: Záznam minerálních a texturních znaků před exhumačního a před kolizního vývoje HP/UHP hornin v orogenní zóně</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2013
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Lithos
ISSN
0024-4937
e-ISSN
—
Svazek periodika
179
Číslo periodika v rámci svazku
October 2013
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
11
Strana od-do
353-363
Kód UT WoS článku
000328592900022
EID výsledku v databázi Scopus
—