Phosphate minerals from the hydrothermal quartz veins in
specialized S-type granites, Gemerska Poloma (Western
Carpathians, Slovakia)

J 2015

Phosphate minerals from the hydrothermal quartz veins in specialized S-type granites, Gemerska Poloma (Western Carpathians, Slovakia)

ŠTEVKO, Martin; Pavel UHER; Jiří SEJKORA; Radana MALÍKOVÁ; Radek ŠKODA et al.

Základní údaje

Originální název

Phosphate minerals from the hydrothermal quartz veins in specialized S-type granites, Gemerska Poloma (Western Carpathians, Slovakia)

Autoři

ŠTEVKO, Martin; Pavel UHER; Jiří SEJKORA; Radana MALÍKOVÁ; Radek ŠKODA a Tomáš VACULOVIČ

Vydání

Journal of Geosciences, Praha, Česká geologická společnost, 2015, 1802-6222

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 1.326

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/15:00087130

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

hydrothermal phosphates; triplite; arrojadite group; chemical composition; S-type granite; Slovak Republic

Štítky

AKR, rivok

Změněno: 8. 4. 2016 09:28, Ing. Andrea Mikešková

Anotace

V originále

An interesting association of phosphate minerals (fluorapatite, triplite, arrojadite-group minerals and viitaniemiite) was studied from intra-granitic hydrothermal quartz veins with minor amounts of albite, orthoclase, muscovite, fluorite, rhodochrosite, arsenopyrite, pyrite, bismuthinite and kobellite. The veins occur in highly evolved, Permian topaz-zinnwaldite leucogranite at the Elisabeth adit near Gemerska Poloma, Gemeric Unit, Western Carpathians (eastern Slovakia). Fluorapatite is enriched in Mn (similar to 4 wt. % MnO, 0.3 apfu Mn) and frequently replaced by triplite, representing the first known triplite occurrence in Western Carpathians. This mineral forms irregular aggregates (<= 7 cm across), Mn/(Mn + Fe) atomic ratio of which attains 0.68 to 0.78 and F/(F + OH) = 0.89-0.92. "Fluorarrojadite-(BaNa)" to its Mn-dominant analogue "fluordickinsonite-(BaNa)" (both minerals still not approved by IMA-CNMNC) occurs as aggregates up to 2 cm across, showing Sr-rich (similar to 1.7 wt. % SrO, similar to 0.36 apfu Sr) and Sr-poor (<= 0.6 wt. % SrO, <= 0.13 apfu Sr) compositions with W site F/(F + OH) = 0.74-0.80 and M site Mn/(Mn + Fe) = 0.39-0.52. Rare viitaniemiite is Mn-rich (10 to 11 wt. % MnO, 0.34-0.38 apfu Mn). The phosphate mineralization in quartz represents a high-temperature hydrothermal assemblage. The F-rich Mn, Fe, Ca-bearing phosphates, fluorite, and muscovite precipitated most likely in presence of alkali-and fluorine-bearing post-magmatic fluids which altered primary magmatic minerals (especially Li-rich micas and alkali feldspars) and liberated some elements (Fe, Mn, Al, Ba, Sr, Na, K) from the adjacent granite.

Citovat

ŠTEVKO, Martin; Pavel UHER; Jiří SEJKORA; Radana MALÍKOVÁ; Radek ŠKODA a Tomáš VACULOVIČ. Phosphate minerals from the hydrothermal quartz veins in specialized S-type granites, Gemerska Poloma (Western Carpathians, Slovakia). Journal of Geosciences. Praha: Česká geologická společnost, 2015, roč. 60, č. 4, s. 237-249. ISSN 1802-6222. Dostupné z: https://doi.org/10.3190/jgeosci.202.

@article{1340748,
   author = {Števko, Martin and Uher, Pavel and Sejkora, Jiří and Malíková, Radana and Škoda, Radek and Vaculovič, Tomáš},
   article_location = {Praha},
   article_number = {4},
   doi = {https://doi.org/10.3190/jgeosci.202},
   keywords = {hydrothermal phosphates; triplite; arrojadite group; chemical composition; S-type granite; Slovak Republic},
   language = {eng},
   issn = {1802-6222},
   journal = {Journal of Geosciences},
   title = {Phosphate minerals from the hydrothermal quartz veins in specialized S-type granites, Gemerska Poloma (Western Carpathians, Slovakia)},
   volume = {60},
   year = {2015}
}

TY  - JOUR
ID  - 1340748
AU  - Števko, Martin - Uher, Pavel - Sejkora, Jiří - Malíková, Radana - Škoda, Radek - Vaculovič, Tomáš
PY  - 2015
TI  - Phosphate minerals from the hydrothermal quartz veins in specialized S-type granites, Gemerska Poloma (Western Carpathians, Slovakia)
JF  - Journal of Geosciences
VL  - 60
IS  - 4
SP  - 237-249
EP  - 237-249
PB  - Česká geologická společnost
SN  - 18026222
KW  - hydrothermal phosphates
KW  - triplite
KW  - arrojadite group
KW  - chemical composition
KW  - S-type granite
KW  - Slovak Republic
N2  - An interesting association of phosphate minerals (fluorapatite, triplite, arrojadite-group minerals and viitaniemiite) was studied from intra-granitic hydrothermal quartz veins with minor amounts of albite, orthoclase, muscovite, fluorite, rhodochrosite, arsenopyrite, pyrite, bismuthinite and kobellite. The veins occur in highly evolved, Permian topaz-zinnwaldite leucogranite at the Elisabeth adit near Gemerska Poloma, Gemeric Unit, Western Carpathians (eastern Slovakia). Fluorapatite is enriched in Mn (similar to 4 wt. % MnO, 0.3 apfu Mn) and frequently replaced by triplite, representing the first known triplite occurrence in Western Carpathians. This mineral forms irregular aggregates (<= 7 cm across), Mn/(Mn + Fe) atomic ratio of which attains 0.68 to 0.78 and F/(F + OH) = 0.89-0.92. "Fluorarrojadite-(BaNa)" to its Mn-dominant analogue "fluordickinsonite-(BaNa)" (both minerals still not approved by IMA-CNMNC) occurs as aggregates up to 2 cm across, showing Sr-rich (similar to 1.7 wt. % SrO, similar to 0.36 apfu Sr) and Sr-poor (<= 0.6 wt. % SrO, <= 0.13 apfu Sr) compositions with W site F/(F + OH) = 0.74-0.80 and M site Mn/(Mn + Fe) = 0.39-0.52. Rare viitaniemiite is Mn-rich (10 to 11 wt. % MnO, 0.34-0.38 apfu Mn). The phosphate mineralization in quartz represents a high-temperature hydrothermal assemblage. The F-rich Mn, Fe, Ca-bearing phosphates, fluorite, and muscovite precipitated most likely in presence of alkali-and fluorine-bearing post-magmatic fluids which altered primary magmatic minerals (especially Li-rich micas and alkali feldspars) and liberated some elements (Fe, Mn, Al, Ba, Sr, Na, K) from the adjacent granite.
ER  -

ŠTEVKO, Martin; Pavel UHER; Jiří SEJKORA; Radana MALÍKOVÁ; Radek ŠKODA a Tomáš VACULOVIČ. Phosphate minerals from the hydrothermal quartz veins in specialized S-type granites, Gemerska Poloma (Western Carpathians, Slovakia). \textit{Journal of Geosciences}. Praha: Česká geologická společnost, 2015, roč.~60, č.~4, s.~237-249. ISSN~1802-6222. Dostupné z: https://doi.org/10.3190/jgeosci.202.

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