Fluorocarbonates from biotite granodiorite, Slavkovský les Mts., Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F23%3A10136161" target="_blank" >RIV/00023272:_____/23:10136161 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.intechopen.com/chapters/87900" target="_blank" >https://www.intechopen.com/chapters/87900</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5772/intechopen.112634" target="_blank" >10.5772/intechopen.112634</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fluorocarbonates from biotite granodiorite, Slavkovský les Mts., Czech Republic

Popis výsledku v původním jazyce

Biotite granodiorites belonging to the redwitzite suite of western part of the Bohemian Massif occur as small bodies in metasediments of the Horní Slavkov crystalline unit and/or as inclusions in biotite granites of the Krušné Hory/Erzgebirge Mts. batholith. Biotite granodiorites contain plagioclase, K-feldspar, biotite, quartz, and accessory minerals (apatite, zircon). Some of these granodiorites were hydrothermally altered and during breakdown of biotite originated chlorite, titanite, ilmenite, and REE-fluorocarbonates. The anhedral grains and irregular aggregates of REE-fluorocarbonates appear homogenous in composition in back-scattered electron images. However, the detailed microprobe analyses of individual REE-fluorocarbonate grains show relatively high compositional variability on thin section scale, particularly with respect to their contents of Ca and Y. The REE-fluorocarbonates are represented by parisite, bastnäsite and relatively rare synchysite. REE-fluorocarbonates are more widespread in the Variscan granites of the Krušné Hory/Erzgebirge Mts. and Slavkovský les Mts. than previously considered. The occurrence of these REE-fluorocarbonates demonstrates that during later post-magmatic alterations, primary accessory minerals (allanite, monazite, xenotime, zircon) became unstable with remobilization of REE, Th, and U into newly formed secondary minerals (REE-fluorocarbonates and coffinite).

Název v anglickém jazyce

Fluorocarbonates from biotite granodiorite, Slavkovský les Mts., Czech Republic

Popis výsledku anglicky

Biotite granodiorites belonging to the redwitzite suite of western part of the Bohemian Massif occur as small bodies in metasediments of the Horní Slavkov crystalline unit and/or as inclusions in biotite granites of the Krušné Hory/Erzgebirge Mts. batholith. Biotite granodiorites contain plagioclase, K-feldspar, biotite, quartz, and accessory minerals (apatite, zircon). Some of these granodiorites were hydrothermally altered and during breakdown of biotite originated chlorite, titanite, ilmenite, and REE-fluorocarbonates. The anhedral grains and irregular aggregates of REE-fluorocarbonates appear homogenous in composition in back-scattered electron images. However, the detailed microprobe analyses of individual REE-fluorocarbonate grains show relatively high compositional variability on thin section scale, particularly with respect to their contents of Ca and Y. The REE-fluorocarbonates are represented by parisite, bastnäsite and relatively rare synchysite. REE-fluorocarbonates are more widespread in the Variscan granites of the Krušné Hory/Erzgebirge Mts. and Slavkovský les Mts. than previously considered. The occurrence of these REE-fluorocarbonates demonstrates that during later post-magmatic alterations, primary accessory minerals (allanite, monazite, xenotime, zircon) became unstable with remobilization of REE, Th, and U into newly formed secondary minerals (REE-fluorocarbonates and coffinite).

Druh

C - Kapitola v odborné knize

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Recent Advances in Mineralogy

ISBN

978-1-83768-980-4

Počet stran výsledku

16

Strana od-do

31-46

Počet stran knihy

153

Název nakladatele

IntechOpen Ltd.

Místo vydání

London

Kód UT WoS kapitoly

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