40Ar/39Ar step-heating dating of phlogopite and kaersutite megacrysts from the Železná hůrka (Eisenbühl) Pleistocene scoria cone, Czech Republic
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F20%3A00534170" target="_blank" >RIV/67985831:_____/20:00534170 - isvavai.cz</a>
Result on the web
<a href="http://www.geologicacarpathica.com/browse-journal/volumes/71-4/article-954/" target="_blank" >http://www.geologicacarpathica.com/browse-journal/volumes/71-4/article-954/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.31577/GeolCarp.71.4.6" target="_blank" >10.31577/GeolCarp.71.4.6</a>
Alternative languages
Result language
angličtina
Original language name
40Ar/39Ar step-heating dating of phlogopite and kaersutite megacrysts from the Železná hůrka (Eisenbühl) Pleistocene scoria cone, Czech Republic
Original language description
40Ar/39Ar step-heating of mica and amphibole megacrysts from hauyne-bearing olivine melilitite scoria/tephra from the Železná hůrka 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 Železná hůrka and with the observed signs of magmatic resorption at the edges of amphibole crystals.
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
10505 - Geology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geologica Carpathica
ISSN
1335-0552
e-ISSN
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Volume of the periodical
71
Issue of the periodical within the volume
4
Country of publishing house
SK - SLOVAKIA
Number of pages
8
Pages from-to
382-387
UT code for WoS article
000565769300006
EID of the result in the Scopus database
2-s2.0-85098249980