Geochronology and petrology of pyroxen?garnet skatns (eastern Bohemian Massif): implications for the source and evolution of the Variscan continental crust

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F14%3A00000310" target="_blank" >RIV/00025798:_____/14:00000310 - isvavai.cz</a>

Result on the web

<a href="http://www.jgeosci.org" target="_blank" >http://www.jgeosci.org</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3190/jgeosci.181" target="_blank" >10.3190/jgeosci.181</a>

Result language

angličtina

Original language name

Geochronology and petrology of pyroxen?garnet skatns (eastern Bohemian Massif): implications for the source and evolution of the Variscan continental crust

Original language description

Zircon ages (U?Pb, LA-ICPMS) obtained from skarns in the Kutná Hora and Svratka units and in the Moldanubian Zone (Bohemian Massif) show significant variations between the lithotectonic units as well as among samples from individual localities. The agesfall between 310 Ma and 3.1 Ga. We suggest that such large spread is a result of both different zircon clastic grain sources and subsequent metamorphic histories. The oldest Neoarchaean to Neoproterozoic ages are interpreted as detrital zircon grains from pre-Cadomian basement. Pronounced age maxima between 600 and 520 Ma (late Neoproterozoic to early Cambrian) were found in skarn samples from the Moldanubian Zone, Svratka and Kutná Hora units. We interpret these as maximum ages of skarn precursor deposition. Apparent Cambrian?Ordovician?Silurian to early Devonian zircon ages were obtained from non-mineralized samples of the Moldanubian Zone and also in the Kutná Hora Unit. This wide temporal interval could reflect maximum ages of skarn

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

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Name of the periodical

Journal of Geosciences

ISSN

1802-6222

e-ISSN

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Volume of the periodical

59

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

22

Pages from-to

367-388

UT code for WoS article

000346149500006

EID of the result in the Scopus database

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