Long-lasting Cadomian magmatic activity along an active northern Gondwana margin: U-Pb zircon and Sr-Nd isotopic evidence from the Brunovistulian Domain, eastern Bohemian Massif
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F17%3A00478000" target="_blank" >RIV/67985530:_____/17:00478000 - isvavai.cz</a>
Alternative codes found
RIV/67985831:_____/17:00478000 RIV/00025798:_____/17:00000030 RIV/00216208:11310/17:10363940
Result on the web
<a href="http://dx.doi.org/10.1007/s00531-016-1416-y" target="_blank" >http://dx.doi.org/10.1007/s00531-016-1416-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00531-016-1416-y" target="_blank" >10.1007/s00531-016-1416-y</a>
Alternative languages
Result language
angličtina
Original language name
Long-lasting Cadomian magmatic activity along an active northern Gondwana margin: U-Pb zircon and Sr-Nd isotopic evidence from the Brunovistulian Domain, eastern Bohemian Massif
Original language description
Cadomian magmatic complexes of the Brunovistulian Domain crop out at the eastern termination of the Bohemian Massif. However, the age, nature and geotectonic affinity of some of pre-Variscan (meta-)igneous rock complexes from this domain are still unknown. Geochronological and geochemical study of the granitic rocks across the Brunovistulian Domain reveals new information about the timing and nature of this magmatic activity originally situated along the northern margin of Gondwana. Zircon U-Pb data (601 +/- 3 Ma, Brno Massif, 634 +/- 6 Ma, paraautochtonous core of the Svratka Dome, 568 +/- 3 Ma, Bites orthogneiss) from the allochtonous Moravicum indicate the prolonged magmatic activity within the Brunovistulian Domain during the Ediacaran. The major- and trace-element and Sr-Nd isotopic signatures show heterogeneous geochemical characteristics of the granitic rocks and suggest a magmatic-arc geotectonic setting. The two-stage Depleted Mantle Nd model ages (c. 1.3-2.0 Ga) indicate derivation of the granitic rocks from a relatively primitive crustal source, as well as from an ancient and evolved continental crust of the Brunovistulian Domain. These results constrain the magmatic-arc activity to c. 635-570 Ma and provide a further evidence for a long-lived (at least c. 65 Myr) and likely episodic subduction-related magmatism at the northern margin of Gondwana. The presence of granitic intrusions derived from variously mature crustal sources at different times suggests heterogeneous crustal segments to having been involved in the magmatic-arc system during its multistage evolution.
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
10507 - Volcanology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Earth Sciences
ISSN
1437-3254
e-ISSN
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Volume of the periodical
106
Issue of the periodical within the volume
6
Country of publishing house
DE - GERMANY
Number of pages
21
Pages from-to
2109-2129
UT code for WoS article
000407925800015
EID of the result in the Scopus database
2-s2.0-84994310348