About: Uranium–niobium-rich alteration products after “písekite”, an intimate mixture of Y, REE, Nb, Ta, Ti-oxide minerals from the Obrázek I pegmatite, Písek, Czech Republic

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About: Uranium–niobium-rich alteration products after “písekite”, an intimate mixture of Y, REE, Nb, Ta, Ti-oxide minerals from the Obrázek I pegmatite, Písek, Czech Republic Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	An improperly described association, further called %22pisekite%22 aggregate, of fine-grained, mostly metamict U, Th-enriched Y, REE, Nb, Ta, Ti-oxide minerals from Obrazek I pegmatite, Pisek, forms an intimate mixture of polycrase-(Y), samarskite-(Y) and fergusonite-(Y). It underwent a low-temperature hydrothermal alteration the products of which are depleted in Y and REE>U and significantly enriched in Si, As and P. Two distinct assemblages of secondary phases were recognized to be associated with %22pisekite%22 aggregate, namely (i) that developed within the central parts of the aggregate and (ii) pocket assemblage in albite adjacent to it. Both assemblages are dominated by Fe-rich smectite. %22Pisekite%22 aggregate is intensively replaced by U, Nb, Ti, Fe, As, P-rich phases of variable chemical composition: phase A (Nb>Ti>Fe>U>As) from the first assemblage, as well as phases B (U similar to Nb>Ti>As>P>Fe) and C (U>Nb>As>Fe>Ti) from the second assemblage. An improperly described association, further called %22pisekite%22 aggregate, of fine-grained, mostly metamict U, Th-enriched Y, REE, Nb, Ta, Ti-oxide minerals from Obrazek I pegmatite, Pisek, forms an intimate mixture of polycrase-(Y), samarskite-(Y) and fergusonite-(Y). It underwent a low-temperature hydrothermal alteration the products of which are depleted in Y and REE>U and significantly enriched in Si, As and P. Two distinct assemblages of secondary phases were recognized to be associated with %22pisekite%22 aggregate, namely (i) that developed within the central parts of the aggregate and (ii) pocket assemblage in albite adjacent to it. Both assemblages are dominated by Fe-rich smectite. %22Pisekite%22 aggregate is intensively replaced by U, Nb, Ti, Fe, As, P-rich phases of variable chemical composition: phase A (Nb>Ti>Fe>U>As) from the first assemblage, as well as phases B (U similar to Nb>Ti>As>P>Fe) and C (U>Nb>As>Fe>Ti) from the second assemblage. (en)
Title	Uranium–niobium-rich alteration products after “písekite”, an intimate mixture of Y, REE, Nb, Ta, Ti-oxide minerals from the Obrázek I pegmatite, Písek, Czech Republic Uranium–niobium-rich alteration products after “písekite”, an intimate mixture of Y, REE, Nb, Ta, Ti-oxide minerals from the Obrázek I pegmatite, Písek, Czech Republic (en)
skos:prefLabel	Uranium–niobium-rich alteration products after “písekite”, an intimate mixture of Y, REE, Nb, Ta, Ti-oxide minerals from the Obrázek I pegmatite, Písek, Czech Republic Uranium–niobium-rich alteration products after “písekite”, an intimate mixture of Y, REE, Nb, Ta, Ti-oxide minerals from the Obrázek I pegmatite, Písek, Czech Republic (en)
skos:notation	RIV/00216224:14310/11:00049545!RIV12-AV0-14310___
http://linked.open...avai/predkladatel	Přírodovědecká fakulta
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KJB301630801), Z(MSM0021622412)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Škoda, Radek Novák, Milan
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	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	237013
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/11:00049545
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	uranium; polycrase-(Y); samarskite-(Y); fergusonite-(Y); kahlerite; smectite (en)
http://linked.open.../riv/klicoveSlovo	fergusonite-(Y) kahlerite polycrase-(Y) samarskite-(Y) uranium smectite
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[6A4DF74573E2]
http://linked.open...i/riv/nazevZdroje	Journal of Geosciences
http://linked.open...in/vavai/riv/obor	DB
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	The interaction of metamict minerals and hydrothermal fluids and its significance in the geological environment
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	56
http://linked.open...iv/tvurceVysledku	Novák, Milan Škoda, Radek Cicha, Jaroslav
http://linked.open...n/vavai/riv/zamer	Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)
issn	1802-6222
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	14310
is http://linked.open...avai/riv/vysledek of	Uranium–niobium-rich alteration products after “písekite”, an intimate mixture of Y, REE, Nb, Ta, Ti-oxide minerals from the Obrázek I pegmatite, Písek, Czech Republic Uranium–niobium-rich alteration products after “písekite”, an intimate mixture of Y, REE, Nb, Ta, Ti-oxide minerals from the Obrázek I pegmatite, Písek, Czech Republic

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