Detailed Information on Publication Record
2009
Hydrothermal uranium-base metal mineralization of the Jánská vein, Březové Hory, Příbram, Czech Republic: lead isotopes and chemical dating of uraninite
ŠKÁCHA, Pavel, Viktor GOLIÁŠ, Jiří SEJKORA, Jakub PLÁŠIL, Ladislav STRNAD et. al.Basic information
Original name
Hydrothermal uranium-base metal mineralization of the Jánská vein, Březové Hory, Příbram, Czech Republic: lead isotopes and chemical dating of uraninite
Authors
ŠKÁCHA, Pavel (203 Czech Republic), Viktor GOLIÁŠ (203 Czech Republic), Jiří SEJKORA (203 Czech Republic), Jakub PLÁŠIL (203 Czech Republic), Ladislav STRNAD (203 Czech Republic), Radek ŠKODA (203 Czech Republic, guarantor, belonging to the institution) and Josef JEŽEK (203 Czech Republic)
Edition
Journal of Geosciences, Praha, Česká geologická společnost, 2009, 1802-6222
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10500 1.5. Earth and related environmental sciences
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
RIV identification code
RIV/00216224:14310/09:00036880
Organization unit
Faculty of Science
UT WoS
000207802700001
Keywords in English
uranium; Příbram Březové Hory;Jánskávein; lead isotopes
Tags
International impact, Reviewed
Změněno: 18/6/2020 14:38, Mgr. Marie Šípková, DiS.
Abstract
V originále
The Jánská vein is one of the important veins of Březové Hory mining district (central Bohemia, Czech Republic). Base metals were mined here since 14th century and uranium ore during late 1950s. Uranium mineralization is younger than most of the base metal mineralization according to macroscopic and microscopic study. Most specimens of uraninite, obtained from archive, contain more or less abundant galena inclusions. Galena of this type is non-radiogenic as indicated by its Pb isotopic composition (ICP-MS). Its origin can be explained by remobilisation of the older base-metal mineralization during the younger, uranium-bearing mineralization event. The amount of radiogenic Pb in uraninite fluctuates from 48 up to 89.8 %. The age of theoretical end member of uraninite, calculated statistically from all measured data (for intersection 208Pb/206Pb = 0), is 269.8 err 20.3 Ma. The only uraninite grain without galena inclusions yielded an age of 263.2 err 8.9 Ma by chemical dating using electron microprobe. The calculated age of the uranium mineralization is in agreement with published data for other uranium deposits genetically associated with the Central Bohemian Plutonic Complex.