. . "P(IAA300460602), Z(MZP0002579801)" . "RIV/00025798:_____/09:00000147" . . "Sk\u00E1celov\u00E1, Zuzana" . . "0377-0273" . . . . "trachyte, gamma-ray survey, Doupovsk\u00E9 hory Mts., Eger Graben, Bohemian Massif"@en . "187" . . . . . . "7"^^ . "Rapprich, Vladislav" . "Effect of small potassium-rich dykes on regional gamma-spectrometry image of a potassium-poor volcanic complex: A case from the Doupovsk\u00E9 hory Volcanic Complex, NW Czech Republic" . . . "1-2" . "Effect of small potassium-rich dykes on regional gamma-spectrometry image of a potassium-poor volcanic complex: A case from the Doupovsk\u00E9 hory Volcanic Complex, NW Czech Republic" . "The K-anomaly exceeding 2 atomic wt.% over an area of 2x6 km was defined by airborne gamma-spectrometry above the central part of the DHVC. The detailed field study, supported by field and laboratory gamma-spectrometry and geochemical analyses resulted in discovery of a K-rich trachytic dyke-swarm. The existence of differentiated rocks in the DHVC was unknown till present. These dykes are commonly less than 1 m wide, but their K content varies 4-8 atomic wt.%. Owing to this high-K composition and relative abundance of dykes, the dykes significantly modify the regional pattern of gamma-spectrometry data. The K-anomaly cannot be explained by the presence of Flurb\u00FChl intrusion dominated by ijolites and essexites, as all these rocks are poor in K, typically not exceeding 1.5 wt.%. On the other hand, much more extensive trachybasaltic lavas with K content varying within the range 1.8\u20133 wt.% cause only minor or undetectable anomalies."@en . "312258" . . . "The K-anomaly exceeding 2 atomic wt.% over an area of 2x6 km was defined by airborne gamma-spectrometry above the central part of the DHVC. The detailed field study, supported by field and laboratory gamma-spectrometry and geochemical analyses resulted in discovery of a K-rich trachytic dyke-swarm. The existence of differentiated rocks in the DHVC was unknown till present. These dykes are commonly less than 1 m wide, but their K content varies 4-8 atomic wt.%. Owing to this high-K composition and relative abundance of dykes, the dykes significantly modify the regional pattern of gamma-spectrometry data. The K-anomaly cannot be explained by the presence of Flurb\u00FChl intrusion dominated by ijolites and essexites, as all these rocks are poor in K, typically not exceeding 1.5 wt.%. On the other hand, much more extensive trachybasaltic lavas with K content varying within the range 1.8\u20133 wt.% cause only minor or undetectable anomalies." . . . . "Effect of small potassium-rich dykes on regional gamma-spectrometry image of a potassium-poor volcanic complex: A case from the Doupovsk\u00E9 hory Volcanic Complex, NW Czech Republic"@en . "[46A9E6467F4F]" . "3"^^ . "Ml\u010Doch, Bed\u0159ich" . . "000271540400003" . "RIV/00025798:_____/09:00000147!RIV10-MZP-00025798" . . "Effect of small potassium-rich dykes on regional gamma-spectrometry image of a potassium-poor volcanic complex: A case from the Doupovsk\u00E9 hory Volcanic Complex, NW Czech Republic"@en . "NL - Nizozemsko" . "Journal of Volcanology and Geothermal Research" . "3"^^ .