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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/61988987:17310/16:A210287X

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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).

Název v anglickém jazyce

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

Popis výsledku anglicky

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).

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA205%2F09%2F1041" target="_blank" >GA205/09/1041: Vývoj suprastruktury-infrastruktury v čase - role tranzientní reologie na dynamiku kontinentální tektoniky v Západních Karpatech</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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.

Název periodika

Tectonophysics

ISSN

0040-1951

e-ISSN

—

Svazek periodika

2016

Číslo periodika v rámci svazku

666

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

18

Strana od-do

48-65

Kód UT WoS článku

000375731600005

EID výsledku v databázi Scopus

2-s2.0-84957435763