Ordovician (Cenerian) metamorphism in the Western Carpathians: Evidence from EMP monazite dating of polymetamorphosed granitoids in the Veporic unit, Slovakia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F24%3A00138995" target="_blank" >RIV/00216224:14310/24:00138995 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0024493724001129?via%3Dihub#ac0005" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0024493724001129?via%3Dihub#ac0005</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.lithos.2024.107600" target="_blank" >10.1016/j.lithos.2024.107600</a>
Alternative languages
Result language
angličtina
Original language name
Ordovician (Cenerian) metamorphism in the Western Carpathians: Evidence from EMP monazite dating of polymetamorphosed granitoids in the Veporic unit, Slovakia
Original language description
Late Ediacaran to Cambrian metagranitoids from the northern Veporic unit of the Western Carpathians show imprints of three metamorphic events, which can be assigned to the Cenerian, Variscan, and Alpine orogenies based on electron microprobe dating of monazite. Metamorphic monazites in the metagranitoids are mostly of the Lower to Middle Ordovician age (480 - 460 Ma). The Ordovician monazite formed in equilibrium with the metamorphic assemblage garnet, biotite, kyanite, ilmenite and quartz at P -T conditions of 6 - 7 kbar and 550 - 570 degrees C, thus providing clear evidence for Cenerian metamorphism in the Western Carpathians. Variscan metamorphism caused minor monazite growth/recrystallization at 364 +/- 13 Ma and produced a new mineral assemblage garnet, kyanite, rutile and phengite at P -T conditions of 20 - 22 kbar and 670 - 690 degrees C. The low-grade Alpine metamorphism is recorded by monazite of Cretaceous age (96 +/- 23 Ma), but only in orthogneiss of extremely low-Ca composition. The Veporic metagranitoids show incomplete transformation from magmatic stage, still preserving remnants of plagioclase, K-feldspar and high-Ti biotite. This indicates that the metagranitoids remained relatively dry and failed to complete metamorphic reactions due to kinetic factors at fluid-deficient conditions. Nevertheless, the metagranitoids likely underwent significant geochemical changes during their metamorphic evolution including a severe loss of CaO and Na 2 O.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10504 - Mineralogy
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Lithos
ISSN
0024-4937
e-ISSN
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Volume of the periodical
476
Issue of the periodical within the volume
July
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
21
Pages from-to
1-21
UT code for WoS article
001218566300001
EID of the result in the Scopus database
2-s2.0-85190835558