| ŽÁČEK, Vladimír, Radek ŠKODA a Petr SULOVSKY. U-Th-rich zircon, thorite and allanite-(Ce) as a main carriers of radioactivity in the highly radioactive ultrapotassic melasyenite porphyry from the Šumava Mts., Moldanubian Zone, Czech Republic. Journal of Geosciences. 2009, roč. 54, č. 4, s. 343-354. ISSN 1802-6222. |
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@article{879321,
author = {Žáček, Vladimír and Škoda, Radek and Sulovsky, Petr},
article_number = {4},
keywords = {melasyenite porphyry; radioactivity; zircon; thorite; allanite-(Ce); Moldanubicum; Bohemian Massif},
language = {eng},
issn = {1802-6222},
journal = {Journal of Geosciences},
title = {U-Th-rich zircon, thorite and allanite-(Ce) as a main carriers of radioactivity in the highly radioactive ultrapotassic melasyenite porphyry from the Šumava Mts., Moldanubian Zone, Czech Republic},
volume = {54},
year = {2009}
}
TY - JOUR
ID - 879321
AU - Žáček, Vladimír - Škoda, Radek - Sulovsky, Petr
PY - 2009
TI - U-Th-rich zircon, thorite and allanite-(Ce) as a main carriers of radioactivity in the highly radioactive ultrapotassic melasyenite porphyry from the Šumava Mts., Moldanubian Zone, Czech Republic
JF - Journal of Geosciences
VL - 54
IS - 4
SP - 343-354
EP - 343-354
SN - 18026222
KW - melasyenite porphyry
KW - radioactivity
KW - zircon
KW - thorite
KW - allanite-(Ce)
KW - Moldanubicum
KW - Bohemian Massif
N2 - A melasyenite porphyry from the vicinity of Kašperské Hory (the Šumava Mts., Moldanubian Zone) shows a high natural radioactivity (K = 4.4-6.1 wt. %, eU = 15-24 ppm, eTh = 38-49 ppm). The most important carriers of U and Th are zircon, thorite, allanite-(Ce) and scarce monazite. Most of the zircon and thorite grains are altered by post-magmatic processes of due to which especially the zircon shows a large degree of chemical variability.
ER -
ŽÁČEK, Vladimír, Radek ŠKODA a Petr SULOVSKY. U-Th-rich zircon, thorite and allanite-(Ce) as a main carriers of radioactivity in the highly radioactive ultrapotassic melasyenite porphyry from the Šumava Mts., Moldanubian Zone, Czech Republic. \textit{Journal of Geosciences}. 2009, roč.~54, č.~4, s.~343-354. ISSN~1802-6222.
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