Microlite-group minerals: tracers of complex post-magmatic
evolution in beryl–columbite granitic pegmatites, Maršíkov
District, Bohemian Massif, Czech Republic

J 2021

Microlite-group minerals: tracers of complex post-magmatic evolution in beryl–columbite granitic pegmatites, Maršíkov District, Bohemian Massif, Czech Republic

CHLÁDEK, Štěpán, Pavel UHER, Milan NOVÁK, Peter BAČÍK, Tomáš OPLETAL et. al.

Základní údaje

Originální název

Microlite-group minerals: tracers of complex post-magmatic evolution in beryl–columbite granitic pegmatites, Maršíkov District, Bohemian Massif, Czech Republic

Autoři

CHLÁDEK, Štěpán (garant), Pavel UHER, Milan NOVÁK (203 Česká republika, domácí), Peter BAČÍK a Tomáš OPLETAL

Vydání

Mineralogical Magazine, Mineralogical Society, 2021, 0026-461X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10504 Mineralogy

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 2.131

Kód RIV

RIV/00216224:14310/21:00119444

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1180/mgm.2021.58

UT WoS

000723015700009

Klíčová slova anglicky

granitic pegmatites; beryl-columbite subtype; Nb-Ta minerals; microlite; columbite; tantalite; fersmite; crystal chemistry; hydrothermal alteration; recrystallisation

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 20. 12. 2021 09:22, Mgr. Marie Šípková, DiS.

Anotace

V originále

Microlite-group minerals occur as common replacement products after primary and secondary columbite-group minerals (CGM) in albitised blocky K-feldspar and in coarse-grained, muscovite-rich units of the Schinderhubel I, Scheibengraben and Bienergraben beryl-columbite pegmatites in the Marikov District (Silesian Unit, Bohemian Massif, Czech Republic). Textural and compositional variations of microlite-group minerals were examined using electron probe micro-analyses and microRaman spectroscopy (mu RS). A complex post-magmatic evolution of the pegmatites and the following microlite populations (Mic) and related processes were found: (1) precipitation of U, Na-rich and F-poor Mic I on cracks in CGM; (2) alteration of Mic I to U-rich together with Na- and F-poor Mic II; and (3) partial replacement of Mic I and II by Mic III with a distinct Na, U and Ti loss and Ca and F gain. Stage (2) includes an extensive leaching of Na, without U loss. The final stage (3) produced euhedral-to-subhedral oscillatory zoned Ca and F enriched Mic III with distinctly different composition to the previous F-poor and A-site vacant Mic II. Aggregates of fersmite are associated commonly with Mic III. Distal Mic IIId occurs locally on cracks in K-feldspar or quartz, with compositions analogous to Mic III. Compositional variations and textural features of microlite-group minerals during dissolution-reprecipitation processes serve as sensitive tracers of post-magmatic evolution in granitic pegmatites recording complex interactions between magmatic pegmatite units and externally derived, hydrothermal metamorphic fluids.

Návaznosti

GA19-05198S, projekt VaV

Název: Greisenizace a albitizace - geologické procesy s potenciálem koncentrovat některé kritické suroviny pro moderní technologie (Akronym: GREISEN)

Investor: Grantová agentura ČR, Greisenizace a albitizace - geologické procesy s potenciálem koncentrovat některé kritické suroviny pro moderní technologie

Citovat

CHLÁDEK, Štěpán, Pavel UHER, Milan NOVÁK, Peter BAČÍK a Tomáš OPLETAL. Microlite-group minerals: tracers of complex post-magmatic evolution in beryl–columbite granitic pegmatites, Maršíkov District, Bohemian Massif, Czech Republic. Mineralogical Magazine. Mineralogical Society, 2021, roč. 85, č. 5, s. 725-743. ISSN 0026-461X. Dostupné z: https://dx.doi.org/10.1180/mgm.2021.58.

@article{1812460,
   author = {Chládek, Štěpán and Uher, Pavel and Novák, Milan and Bačík, Peter and Opletal, Tomáš},
   article_number = {5},
   doi = {http://dx.doi.org/10.1180/mgm.2021.58},
   keywords = {granitic pegmatites; beryl-columbite subtype; Nb-Ta minerals; microlite; columbite; tantalite; fersmite; crystal chemistry; hydrothermal alteration; recrystallisation},
   language = {eng},
   issn = {0026-461X},
   journal = {Mineralogical Magazine},
   title = {Microlite-group minerals: tracers of complex post-magmatic evolution in beryl–columbite granitic pegmatites, Maršíkov District, Bohemian Massif, Czech Republic},
   url = {https://www.cambridge.org/core/journals/mineralogical-magazine/article/microlitegroup-minerals-tracers-of-complex-postmagmatic-evolution-in-berylcolumbite-granitic-pegmatites-marsikov-district-bohemian-massif-czech-republic/B2D8DBE1935150ABEAD88BE8EF2442},
   volume = {85},
   year = {2021}
}

TY  - JOUR
ID  - 1812460
AU  - Chládek, Štěpán - Uher, Pavel - Novák, Milan - Bačík, Peter - Opletal, Tomáš
PY  - 2021
TI  - Microlite-group minerals: tracers of complex post-magmatic evolution in beryl–columbite granitic pegmatites, Maršíkov District, Bohemian Massif, Czech Republic
JF  - Mineralogical Magazine
VL  - 85
IS  - 5
SP  - 725-743
EP  - 725-743
PB  - Mineralogical Society
SN  - 0026461X
KW  - granitic pegmatites
KW  - beryl-columbite subtype
KW  - Nb-Ta minerals
KW  - microlite
KW  - columbite
KW  - tantalite
KW  - fersmite
KW  - crystal chemistry
KW  - hydrothermal alteration
KW  - recrystallisation
UR  - https://www.cambridge.org/core/journals/mineralogical-magazine/article/microlitegroup-minerals-tracers-of-complex-postmagmatic-evolution-in-berylcolumbite-granitic-pegmatites-marsikov-district-bohemian-massif-czech-republic/B2D8DBE1935150ABEAD88BE8EF2442
N2  - Microlite-group minerals occur as common replacement products after primary and secondary columbite-group minerals (CGM) in albitised blocky K-feldspar and in coarse-grained, muscovite-rich units of the Schinderhubel I, Scheibengraben and Bienergraben beryl-columbite pegmatites in the Marikov District (Silesian Unit, Bohemian Massif, Czech Republic). Textural and compositional variations of microlite-group minerals were examined using electron probe micro-analyses and microRaman spectroscopy (mu RS). A complex post-magmatic evolution of the pegmatites and the following microlite populations (Mic) and related processes were found: (1) precipitation of U, Na-rich and F-poor Mic I on cracks in CGM; (2) alteration of Mic I to U-rich together with Na- and F-poor Mic II; and (3) partial replacement of Mic I and II by Mic III with a distinct Na, U and Ti loss and Ca and F gain. Stage (2) includes an extensive leaching of Na, without U loss. The final stage (3) produced euhedral-to-subhedral oscillatory zoned Ca and F enriched Mic III with distinctly different composition to the previous F-poor and A-site vacant Mic II. Aggregates of fersmite are associated commonly with Mic III. Distal Mic IIId occurs locally on cracks in K-feldspar or quartz, with compositions analogous to Mic III. Compositional variations and textural features of microlite-group minerals during dissolution-reprecipitation processes serve as sensitive tracers of post-magmatic evolution in granitic pegmatites recording complex interactions between magmatic pegmatite units and externally derived, hydrothermal metamorphic fluids.
ER  -

CHLÁDEK, Štěpán, Pavel UHER, Milan NOVÁK, Peter BAČÍK a Tomáš OPLETAL. Microlite-group minerals: tracers of complex post-magmatic evolution in beryl–columbite granitic pegmatites, Maršíkov District, Bohemian Massif, Czech Republic. \textit{Mineralogical Magazine}. Mineralogical Society, 2021, roč.~85, č.~5, s.~725-743. ISSN~0026-461X. Dostupné z: https://dx.doi.org/10.1180/mgm.2021.58.

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