Geochemistry of Y+REE in stratiform tourmalinites and their tourmalines: implications for their genesis

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Geochemistry of Y+REE in stratiform tourmalinites and their tourmalines: implications for their genesis

Popis výsledku v původním jazyce

Yttrium+REE contents in stratiform tourmalinites and their tourmaline from two different geological units, Svratka Unit and Krkonoše-Jizera Unit (Bohemian Massif, Czech Republic) are reported to reveal tourmalinite genesis and tourmaline growth history.Premetamorphic tourmaline grains rimmed by younger metamorphic schorl-dravite were distinguished in both regions. The wing-shaped Y+REE patterns with minimum close to Eu in premetamorphic oxy-dravite from the Krkonoše-Jizera Unit, and the Y+REE whole rock signature indicate important contribution of seawater in the oxy-dravite forming fluids. On the contrary, Y+REE patterns in premetamorphic schorl cores from the Svratka Unit correspond well to presumable exhalative origin of B-bearing fluids. Metamorphic rims of schorl-dravite at both regions show typically LREE-enriched patterns with pronounced positive Eu anomalies reflecting composition of metamorphic fluids.

Název v anglickém jazyce

Geochemistry of Y+REE in stratiform tourmalinites and their tourmalines: implications for their genesis

Popis výsledku anglicky

Yttrium+REE contents in stratiform tourmalinites and their tourmaline from two different geological units, Svratka Unit and Krkonoše-Jizera Unit (Bohemian Massif, Czech Republic) are reported to reveal tourmalinite genesis and tourmaline growth history.Premetamorphic tourmaline grains rimmed by younger metamorphic schorl-dravite were distinguished in both regions. The wing-shaped Y+REE patterns with minimum close to Eu in premetamorphic oxy-dravite from the Krkonoše-Jizera Unit, and the Y+REE whole rock signature indicate important contribution of seawater in the oxy-dravite forming fluids. On the contrary, Y+REE patterns in premetamorphic schorl cores from the Svratka Unit correspond well to presumable exhalative origin of B-bearing fluids. Metamorphic rims of schorl-dravite at both regions show typically LREE-enriched patterns with pronounced positive Eu anomalies reflecting composition of metamorphic fluids.

Druh

D - Stať ve sborníku

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 12th Biennial SGA Meeting

ISBN

9789174032079

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

1705-1708

Název nakladatele

Mineral deposit research for a high-tech world. Proceedings of the 12th Biennial SGA Meeting

Místo vydání

Sweden

Místo konání akce

Uppsala, Sweden

Datum konání akce

12. 8. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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