Sc- and REE-rich tourmaline replaced by Sc-rich REE-bearing
epidote-group mineral from the mixed (NYF plus LCT) Kracovice
pegmatite (Moldanubian Zone, Czech Republic)

J 2015

Sc- and REE-rich tourmaline replaced by Sc-rich REE-bearing epidote-group mineral from the mixed (NYF plus LCT) Kracovice pegmatite (Moldanubian Zone, Czech Republic)

ČOPJAKOVÁ, Renata, Radek ŠKODA, Michaela VAŠINOVÁ GALIOVÁ, Milan NOVÁK, Jan CEMPÍREK et. al.

Základní údaje

Originální název

Sc- and REE-rich tourmaline replaced by Sc-rich REE-bearing epidote-group mineral from the mixed (NYF plus LCT) Kracovice pegmatite (Moldanubian Zone, Czech Republic)

Autoři

ČOPJAKOVÁ, Renata (203 Česká republika, garant, domácí), Radek ŠKODA (203 Česká republika, domácí), Michaela VAŠINOVÁ GALIOVÁ (203 Česká republika, domácí), Milan NOVÁK (203 Česká republika, domácí) a Jan CEMPÍREK (203 Česká republika, domácí)

Vydání

American Mineralogist, CHANTILLY, Mineralogical Society of America, 2015, 0003-004X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 1.918

Kód RIV

RIV/00216224:14310/15:00081194

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000357431700011

Klíčová slova anglicky

Schorl; fluor-elbaite; tourmaline replacement; Sc-rich REE-bearing epidote-group mineral; granitic pegmatite; Bohemian Massif

Štítky

AKR, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 8. 4. 2016 14:05, Ing. Andrea Mikešková

Anotace

V originále

Primary black thick-prismatic Al-rich schorl to rare fluor-schorl (TurP1), locally overgrown by brownish-green Li-rich fluor-schorl to fluor-elbaite (TurP2) from the Kracovice pegmatite (mixed NYF+LCT signature), was partly replaced by secondary Li-rich fluor-schorl to fluor-elbaite (TurS) plus the assemblage REE-bearing epidote-group mineral + chamosite. Primary Al-rich schorl (TurP1) shows high and variable contents of Sc (33-364 ppm) and Y+REE (40-458 ppm) with steep, LREE-enriched REE pattern. Overgrowing (TurP2) and replacing (TurS) Li-rich fluor-schorl to fluor-elbaite is typically depleted in Sc (21-60 ppm) and Y+REE (3-47 ppm) with well-developed tetrad effect in the first (La-Nd) and the second (Sm-Gd) tetrads. Scandium- and REE-rich black tourmaline (TurP1) crystallized earlier from the melt, whereas crystallization of primary Li-rich fluor-schorl to fluor-elbaite (TurP2) most likely took place during late magmatic to early hydrothermal conditions. Both the secondary Li-rich fluor-schorl to fluor-elbaite (TurS) and the unusual assemblage of REE-bearing epidote-group mineral + chamosite are likely coeval products of subsolidus reactions of the magmatic Al-rich schorl (TurP1) with evolved REE-poor, Li,F-rich, alkaline pegmatite-derived fluids. Well-crystalline REE-bearing epidote-group mineral (Y+REE = 0.42-0.60 apfu) confirmed by Raman spectroscopy has a steep, LREE-rich chondrite-normalized REE pattern with significant negative Eu anomaly and shows variable and high contents of Sc (<= 3.3 wt% Sc2O3) and Sn (<= 1.0 wt% SnO2). Substitution ScAl-1, and minor vacancy in the octahedral sites are suggested in the REE-bearing epidote-group mineral.

Návaznosti

ED1.1.00/02.0068, projekt VaV

Název: CEITEC - central european institute of technology

GAP210/10/0743, projekt VaV

Název: Chemické složení a stupeň strukturního uspořádání přírodních turmalínů - geochemické versus strukturní faktory

Investor: Grantová agentura ČR, Chemické složení a stupeň strukturního uspořádání přírodních turmalínů - geochemické versus strukturní faktory

GA14-13347S, projekt VaV

Název: Variabilita lehkých prvků (Li, Be, B) ve vybraných horninotvorných a akcesorických minerálech z felsických magmatických a metamorfovaných hornin

Investor: Grantová agentura ČR, Variabilita lehkých prvků (Li, Be, B) ve vybraných horninotvorných a akcesorických minerálech z felsických magmatických a metamorfovaných hornin

Citovat

ČOPJAKOVÁ, Renata, Radek ŠKODA, Michaela VAŠINOVÁ GALIOVÁ, Milan NOVÁK a Jan CEMPÍREK. Sc- and REE-rich tourmaline replaced by Sc-rich REE-bearing epidote-group mineral from the mixed (NYF plus LCT) Kracovice pegmatite (Moldanubian Zone, Czech Republic). American Mineralogist. CHANTILLY: Mineralogical Society of America, 2015, roč. 100, č. 7, s. 1434-1451. ISSN 0003-004X.

@article{1317027,
   author = {Čopjaková, Renata and Škoda, Radek and Vašinová Galiová, Michaela and Novák, Milan and Cempírek, Jan},
   article_location = {CHANTILLY},
   article_number = {7},
   keywords = {Schorl; fluor-elbaite; tourmaline replacement; Sc-rich REE-bearing epidote-group mineral; granitic pegmatite; Bohemian Massif},
   language = {eng},
   issn = {0003-004X},
   journal = {American Mineralogist},
   title = {Sc- and REE-rich tourmaline replaced by Sc-rich REE-bearing epidote-group mineral from the mixed (NYF plus LCT) Kracovice pegmatite (Moldanubian Zone, Czech Republic)},
   volume = {100},
   year = {2015}
}

TY  - JOUR
ID  - 1317027
AU  - Čopjaková, Renata - Škoda, Radek - Vašinová Galiová, Michaela - Novák, Milan - Cempírek, Jan
PY  - 2015
TI  - Sc- and REE-rich tourmaline replaced by Sc-rich REE-bearing epidote-group mineral from the mixed (NYF plus LCT) Kracovice pegmatite (Moldanubian Zone, Czech Republic)
JF  - American Mineralogist
VL  - 100
IS  - 7
SP  - 1434-1451
EP  - 1434-1451
PB  - Mineralogical Society of America
SN  - 0003004X
KW  - Schorl
KW  - fluor-elbaite
KW  - tourmaline replacement
KW  - Sc-rich REE-bearing epidote-group mineral
KW  - granitic pegmatite
KW  - Bohemian Massif
N2  - Primary black thick-prismatic Al-rich schorl to rare fluor-schorl (TurP1), locally overgrown by brownish-green Li-rich fluor-schorl to fluor-elbaite (TurP2) from the Kracovice pegmatite (mixed NYF+LCT signature), was partly replaced by secondary Li-rich fluor-schorl to fluor-elbaite (TurS) plus the assemblage REE-bearing epidote-group mineral + chamosite. Primary Al-rich schorl (TurP1) shows high and variable contents of Sc (33-364 ppm) and Y+REE (40-458 ppm) with steep, LREE-enriched REE pattern. Overgrowing (TurP2) and replacing (TurS) Li-rich fluor-schorl to fluor-elbaite is typically depleted in Sc (21-60 ppm) and Y+REE (3-47 ppm) with well-developed tetrad effect in the first (La-Nd) and the second (Sm-Gd) tetrads. Scandium- and REE-rich black tourmaline (TurP1) crystallized earlier from the melt, whereas crystallization of primary Li-rich fluor-schorl to fluor-elbaite (TurP2) most likely took place during late magmatic to early hydrothermal conditions. Both the secondary Li-rich fluor-schorl to fluor-elbaite (TurS) and the unusual assemblage of REE-bearing epidote-group mineral + chamosite are likely coeval products of subsolidus reactions of the magmatic Al-rich schorl (TurP1) with evolved REE-poor, Li,F-rich, alkaline pegmatite-derived fluids. Well-crystalline REE-bearing epidote-group mineral (Y+REE = 0.42-0.60 apfu) confirmed by Raman spectroscopy has a steep, LREE-rich chondrite-normalized REE pattern with significant negative Eu anomaly and shows variable and high contents of Sc (<= 3.3 wt% Sc2O3) and Sn (<= 1.0 wt% SnO2). Substitution ScAl-1, and minor vacancy in the octahedral sites are suggested in the REE-bearing epidote-group mineral.
ER  -

ČOPJAKOVÁ, Renata, Radek ŠKODA, Michaela VAŠINOVÁ GALIOVÁ, Milan NOVÁK a Jan CEMPÍREK. Sc- and REE-rich tourmaline replaced by Sc-rich REE-bearing epidote-group mineral from the mixed (NYF plus LCT) Kracovice pegmatite (Moldanubian Zone, Czech Republic). \textit{American Mineralogist}. CHANTILLY: Mineralogical Society of America, 2015, roč.~100, č.~7, s.~1434-1451. ISSN~0003-004X.

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