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Detail publikačního výsledku
KRMÍČEK, L.; TIMMERMAN, M. J.; ZIEMANN, M. A.; SUDO, M.; ULRYCH, J.
Originální název
(40)A/Ar-39 step-heating dating of phlogopite and kaersutite megacrysts from the Zelezna hurka (Eisenbuhl) Pleistocene scoria cone, Czech Republic
Anglický název
Druh
Článek WoS
Originální abstrakt
(40)A/Ar-39 step-heating of mica and amphibole megacrysts from hauyne-bearing olivine melilitite scoria/tephra from the Zelezna hurka yielded a 435 +/- 108 ka isotope correlation age for phlogopite and a more imprecise 1.55 Ma total gas age of the kaersutite megacryst. The amphibole megacrysts may constitute the first, and the younger phlogopite megacrysts the later phase of mafic, hydrous melilitic magma crystallization. It cannot be ruled out that the amphibole megacrysts are petrogenetically unrelated to tephra and phlogopite megacrysts and were derived from mantle xenoliths or disaggregated older, deep crustal pegmatites. This is in line both with the rarity of amphibole at Zelezna hurka and with the observed signs of magmatic resorption at the edges of amphibole crystals.
Anglický abstrakt
Klíčová slova
Bohemian Massif; Železná hůrka; Eisenbühl; argon dating; mica; amphibole; melilitite
Klíčová slova v angličtině
Autoři
Rok RIV
2021
Vydáno
15.08.2020
Nakladatel
Earth Science Institute, Slovak Academy of Sciences
Místo
Bratislava
ISSN
1335-0552
Periodikum
GEOLOGICA CARPATHICA
Svazek
71
Číslo
4
Stát
Slovenská republika
Strany od
382
Strany do
387
Strany počet
8
URL
http://www.geologicacarpathica.com/browse-journal/volumes/71-4/article-954/
Plný text v Digitální knihovně
http://hdl.handle.net/11012/195623
BibTex
@article{BUT165866, author="Lukáš {Krmíček} and Martin J. {Timmerman} and Martin A. {Ziemann} and Masafumi {Sudo} and Jaromír {Ulrych}", title="(40)A/Ar-39 step-heating dating of phlogopite and kaersutite megacrysts from the Zelezna hurka (Eisenbuhl) Pleistocene scoria cone, Czech Republic", journal="GEOLOGICA CARPATHICA", year="2020", volume="71", number="4", pages="382--387", doi="10.31577/GeolCarp.71.4.6", issn="1335-0552", url="http://www.geologicacarpathica.com/browse-journal/volumes/71-4/article-954/" }
Dokumenty
Krmíček et al. 2020 Geolgica Carpathica 71_4