Geochronological evidence for the Alpine tectono-thermal evolution of the Veporic Unit (Western Carpathians, Slovakia)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10324658" target="_blank" >RIV/00216208:11310/16:10324658 - isvavai.cz</a>

Alternative codes found

RIV/61988987:17310/16:A210287X

Result on the web

<a href="http://www.sciencedirect.com/science/article/pii/S0040195115005636" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0040195115005636</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tecto.2015.10.014" target="_blank" >10.1016/j.tecto.2015.10.014</a>

Result language

angličtina

Original language name

Geochronological evidence for the Alpine tectono-thermal evolution of the Veporic Unit (Western Carpathians, Slovakia)

Original language description

Tectono-thermal evolution of the Veporic Unit was revealed by multiple geochronological methods, including 87Rb/ 86Sr on muscovite and biotite, zircon and apatite fission-track, and apatite (U-Th)/He analysis. Based on the new data, the following Alpine tectono-thermal stages can be distinguished: The Eo-Alpine Cretaceous nappe stacking (~ 135-95 Ma) resulted in burial of the Veporic Unit beneath the northward overthrusting Gemeric Unit and overlying Jurassic Meliata accretionary wedge. During this process the Veporic Unit reached metamorphic peak of greenschist- to amphibolite facies accompanied by orogen-parallel flow in its lower and middle crust. The subsequent evolution of this crust is associated with two distinct exhumation mechanisms related to collision with the northerly Tatric-Fatric basement. The first mechanism (~90-80 Ma) is associated with internal subhorizontal shortening of the Veporic Unit reflected by large-scale upright folding and heteroge- neous exhumation of the Veporic lower crust in the cores of crustal-scale antiforms. This led to juxtaposition of the higher and lower grade parts of basement, all cooled down to ~350 oC by ~80 Ma. The second mechanism is associated with the overthrusting of the Veporic Unit over the attenuated Fatric crust. This led to a passive en-block exhumation of the Veporic crust from ~350 oC to 60 oC between ~80 and 55 Ma followed by erosion (~55-35 Ma). The erosion processes resulted in formation of planation surface before the Late Eocene transgres- sion. After erosion and planation, a new sedimentary cycle of the Central Carpathian Palaeogene Basin was depos- ited with the sedimentary strata thickness of ~ 1.5-2.0 km (~ 21-17 Ma). The early to middle Miocene is characterised by destruction tectonic disintegration and erosion of this basin (~20-13 Ma) and formation of the Neogene Vepor Stratovolcano (~13 Ma).

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DB - Geology and mineralogy

OECD FORD branch

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Project

<a href="/en/project/GA205%2F09%2F1041" target="_blank" >GA205/09/1041: Superstructure-infrastructure through time - a role of transient rheology on dynamics of continental tectonics in the West Carpathians</a><br>

Continuities

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

Publication year

2016

Confidentiality

C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

Name of the periodical

Tectonophysics

ISSN

0040-1951

e-ISSN

—

Volume of the periodical

2016

Issue of the periodical within the volume

666

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

18

Pages from-to

48-65

UT code for WoS article

000375731600005

EID of the result in the Scopus database

2-s2.0-84957435763