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; Radek ŠKODA; Michaela VAŠINOVÁ GALIOVÁ; Milan NOVÁK a Jan CEMPÍREK

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

Označené pro přenos do RIV

Ano

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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