About: Effect of small potassium-rich dykes on regional gamma-spectrometry image of a potassium-poor volcanic complex: A case from the Doupovské hory Volcanic Complex, NW Czech Republic

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About: Effect of small potassium-rich dykes on regional gamma-spectrometry image of a potassium-poor volcanic complex: A case from the Doupovské hory Volcanic Complex, NW Czech Republic Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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 Flurbühl 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 1.8–3 wt.% cause only minor or undetectable anomalies. 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 Flurbühl 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 1.8–3 wt.% cause only minor or undetectable anomalies. (en)
Title	Effect of small potassium-rich dykes on regional gamma-spectrometry image of a potassium-poor volcanic complex: A case from the Doupovské hory Volcanic Complex, NW Czech Republic Effect of small potassium-rich dykes on regional gamma-spectrometry image of a potassium-poor volcanic complex: A case from the Doupovské hory Volcanic Complex, NW Czech Republic (en)
skos:prefLabel	Effect of small potassium-rich dykes on regional gamma-spectrometry image of a potassium-poor volcanic complex: A case from the Doupovské hory Volcanic Complex, NW Czech Republic Effect of small potassium-rich dykes on regional gamma-spectrometry image of a potassium-poor volcanic complex: A case from the Doupovské hory Volcanic Complex, NW Czech Republic (en)
skos:notation	RIV/00025798:_____/09:00000147!RIV10-MZP-00025798
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA300460602), Z(MZP0002579801)
http://linked.open...iv/cisloPeriodika	1-2
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Rapprich, Vladislav Mlčoch, Bedřich Skácelová, Zuzana
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Česká geologická služba
http://linked.open...dnocenehoVysledku	312258
http://linked.open...ai/riv/idVysledku	RIV/00025798:_____/09:00000147
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	trachyte, gamma-ray survey, Doupovské hory Mts., Eger Graben, Bohemian Massif (en)
http://linked.open.../riv/klicoveSlovo	trachyte Doupovské hory Mts. Bohemian Massif Eger Graben gamma-ray survey
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[46A9E6467F4F]
http://linked.open...i/riv/nazevZdroje	Journal of Volcanology and Geothermal Research
http://linked.open...in/vavai/riv/obor	DB
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Upper-crustal model of the Ohře Rift and its vicinity.
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	187
http://linked.open...iv/tvurceVysledku	Mlčoch, Bedřich Rapprich, Vladislav Skácelová, Zuzana
http://linked.open...ain/vavai/riv/wos	000271540400003
http://linked.open...n/vavai/riv/zamer	Geosciences for the Society of the 21st Century: from regional research to geological hazards and global changes.
issn	0377-0273
number of pages	7 (xsd:int)

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