Rare-earth crystal chemistry of thalenite-(Y) from different
environments

J 2018

Rare-earth crystal chemistry of thalenite-(Y) from different environments

RASCHKE, MB; EJD ANDERSON; J. VAN FOSSON; JM ALLAZ; JR SMYTH et al.

Základní údaje

Originální název

Rare-earth crystal chemistry of thalenite-(Y) from different environments

Autoři

RASCHKE, MB; EJD ANDERSON; J. VAN FOSSON; JM ALLAZ; JR SMYTH; Radek ŠKODA; PM PERSSON a R. BECKER

Vydání

Mineralogical Magazine, Middlesex, Mineralogical Society, 2018, 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: 2.210

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/18:00106693

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

thalenite-(Y); Golden Horn batholith; North Cascades; White Cloud pegmatite; South Platte pegmatite district; Pikes Peak batholith; X-ray structure refinement; electron microprobe analysis; Raman spectroscopy

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 23. 4. 2024 14:42, Mgr. Michal Petr

Anotace

V originále

Thalenite-(Y), ideally Y3Si3O10F, is a heavy-rare-earth-rich silicate phase occurring in granite pegmatites that may help to illustrate rare-earth element (REE) chemistry and behaviour in natural systems. The crystal structure and mineral chemistry of thalenite-(Y) were analysed by electron microprobe analysis, X-ray diffraction and micro-Raman spectroscopy from a new locality in the peralkaline granite of the Golden Horn batholith, Okanogan County, Washington State, USA, in comparison with new analyses from the White Cloud pegmatite in the Pikes Peak batholith, Colorado, USA. The Golden Horn thalenite-(Y) occurs as late-stage sub-millimetre euhedral bladed transparent crystals in small miarolitic cavities in an arfvedsonite- bearing biotite granite. It exhibits growth zoning with distinct heavy-rare-earth element (HREE) vs. light-rare-earth element (LREE) enriched zones. The White Cloud thalenite-(Y) occurs in two distinct anhedral and botryoidal crystal habits of mostly homogenous composition. In addition, minor secondary thalenite-(Y) is recognized by its distinct Yb-rich composition (up to 0.8 atoms per formula unit (apfu) Yb). Single-crystal X-ray diffraction analysis and structure refinement reveals Y-site ordering with preferential HREE occupation of Y2 vs. Y1 and Y3 REE sites. Chondrite normalization shows continuous enrichment of HREE in White Cloud thalenite-(Y), in contrast to Golden Horn thalenite-(Y) with a slight depletion of the heaviest REE (Tm, Yb and Lu). The results suggest a hydrothermal origin of the Golden Horn miarolitic thalenite-(Y), compared to a combination of both primary magmatic followed by hydrothermal processes responsible for the multiple generations over a range of spatial scales in White Cloud thalenite-(Y).

Citovat

RASCHKE, MB; EJD ANDERSON; J. VAN FOSSON; JM ALLAZ; JR SMYTH; Radek ŠKODA; PM PERSSON a R. BECKER. Rare-earth crystal chemistry of thalenite-(Y) from different environments. Mineralogical Magazine. Middlesex: Mineralogical Society, 2018, roč. 82, č. 2, s. 313-327. ISSN 0026-461X. Dostupné z: https://doi.org/10.1180/minmag.2017.081.044.

@article{1509416,
   author = {Raschke, MB and Anderson, EJD and Van Fosson, J. and Allaz, JM and Smyth, JR and Škoda, Radek and Persson, PM and Becker, R.},
   article_location = {Middlesex},
   article_number = {2},
   doi = {https://doi.org/10.1180/minmag.2017.081.044},
   keywords = {thalenite-(Y); Golden Horn batholith; North Cascades; White Cloud pegmatite; South Platte pegmatite district; Pikes Peak batholith; X-ray structure refinement; electron microprobe analysis; Raman spectroscopy},
   language = {eng},
   issn = {0026-461X},
   journal = {Mineralogical Magazine},
   title = {Rare-earth crystal chemistry of thalenite-(Y) from different environments},
   url = {http://dx.doi.org/10.1180/minmag.2017.081.044},
   volume = {82},
   year = {2018}
}

TY  - JOUR
ID  - 1509416
AU  - Raschke, MB - Anderson, EJD - Van Fosson, J. - Allaz, JM - Smyth, JR - Škoda, Radek - Persson, PM - Becker, R.
PY  - 2018
TI  - Rare-earth crystal chemistry of thalenite-(Y) from different environments
JF  - Mineralogical Magazine
VL  - 82
IS  - 2
SP  - 313-327
EP  - 313-327
PB  - Mineralogical Society
SN  - 0026461X
KW  - thalenite-(Y)
KW  - Golden Horn batholith
KW  - North Cascades
KW  - White Cloud pegmatite
KW  - South Platte pegmatite district
KW  - Pikes Peak batholith
KW  - X-ray structure refinement
KW  - electron microprobe analysis
KW  - Raman spectroscopy
UR  - http://dx.doi.org/10.1180/minmag.2017.081.044
N2  - Thalenite-(Y), ideally Y3Si3O10F, is a heavy-rare-earth-rich silicate phase occurring in granite pegmatites that may help to illustrate rare-earth element (REE) chemistry and behaviour in natural systems. The crystal structure and mineral chemistry of thalenite-(Y) were analysed by electron microprobe analysis, X-ray diffraction and micro-Raman spectroscopy from a new locality in the peralkaline granite of the Golden Horn batholith, Okanogan County, Washington State, USA, in comparison with new analyses from the White Cloud pegmatite in the Pikes Peak batholith, Colorado, USA. The Golden Horn thalenite-(Y) occurs as late-stage sub-millimetre euhedral bladed transparent crystals in small miarolitic cavities in an arfvedsonite- bearing biotite granite. It exhibits growth zoning with distinct heavy-rare-earth element (HREE) vs. light-rare-earth element (LREE) enriched zones. The White Cloud thalenite-(Y) occurs in two distinct anhedral and botryoidal crystal habits of mostly homogenous composition. In addition, minor secondary thalenite-(Y) is recognized by its distinct Yb-rich composition (up to 0.8 atoms per formula unit (apfu) Yb). Single-crystal X-ray diffraction analysis and structure refinement reveals Y-site ordering with preferential HREE occupation of Y2 vs. Y1 and Y3 REE sites. Chondrite normalization shows continuous enrichment of HREE in White Cloud thalenite-(Y), in contrast to Golden Horn thalenite-(Y) with a slight depletion of the heaviest REE (Tm, Yb and Lu). The results suggest a hydrothermal origin of the Golden Horn miarolitic thalenite-(Y), compared to a combination of both primary magmatic followed by hydrothermal processes responsible for the multiple generations over a range of spatial scales in White Cloud thalenite-(Y).
ER  -

RASCHKE, MB; EJD ANDERSON; J. VAN FOSSON; JM ALLAZ; JR SMYTH; Radek ŠKODA; PM PERSSON a R. BECKER. Rare-earth crystal chemistry of thalenite-(Y) from different environments. \textit{Mineralogical Magazine}. Middlesex: Mineralogical Society, 2018, roč.~82, č.~2, s.~313-327. ISSN~0026-461X. Dostupné z: https://doi.org/10.1180/minmag.2017.081.044.

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