Rare-earth element mineralization in altered pegmatites from
the Djurkovo Pb-Zn deposit, Central Rhodopes

D 2023

Rare-earth element mineralization in altered pegmatites from the Djurkovo Pb-Zn deposit, Central Rhodopes

GEORGIEVA, Sylvina; Rossitsa D VASSILEVA; Georgi MILENKOV; Jan CEMPÍREK; Radek ŠKODA et. al.

Základní údaje

Originální název

Rare-earth element mineralization in altered pegmatites from the Djurkovo Pb-Zn deposit, Central Rhodopes

Autoři

GEORGIEVA, Sylvina; Rossitsa D VASSILEVA; Georgi MILENKOV; Jan CEMPÍREK a Radek ŠKODA

Vydání

Geneva, 17th Biennial SGA Meeting - Proceedings Volume 1, od s. 238-241, 4 s. 2023

Nakladatel

Society for Geology Applied to Mineral Deposits

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10505 Geology

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Forma vydání

tištěná verze "print"

Odkazy

URL

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-2-8399-4044-3

UT WoS

001238045900063

Klíčová slova anglicky

Djurkovo deposit; polymetallic vein; pegmatite dykes; high-grade metamorphic complex; Central Rhodopes; gneisses

Štítky

14315010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 22. 9. 2025 10:45, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The Djurkovo polymetallic vein deposit is formed by veins filling open space in various gneisses that compose the high-grade metamorphic complex in the Central Rhodopes. Abundant deformed concordant or crosscutting pegmatites of varying thickness are common in the metamorphic sequence. The studied pegmatite dykes consist mainly of plagioclase, K-feldspar, quartz, and minor micas. The main accessory minerals are allanite- (Ce), titanite, apatite and zircon. Late hydrothermal overprint and alteration of pegmatites led to formation of epidote-group minerals, adularia, albite, sericite, chlorite, carbonate, quartz and leucoxene. The secondary minerals also include rare earth element (REE+Y) and Th, U fluorcarbonate - phosphate - oxide assemblages. This mineral association typically occurs as very fine-grained (. 20 mu m) anhedral disseminations, observed along fractures and dissolved zones in allanite and titanite that evidently are the main source for the REEs. This indicates remobilization of REEs followed by formation of new phases during the late-stage hydrothermal activity. Limited mobility of REEs is illustrated by precipitation of the newly-formed minerals within the grains of the altered accessory minerals. The studied pegmatites retain a significant amount of accessory minerals rich in incompatible elements and despite being hydrothermally altered they could be considered as their potential source.

Citovat

GEORGIEVA, Sylvina; Rossitsa D VASSILEVA; Georgi MILENKOV; Jan CEMPÍREK a Radek ŠKODA. Rare-earth element mineralization in altered pegmatites from the Djurkovo Pb-Zn deposit, Central Rhodopes. In Chelle-Michou Cyril, Saintilan Nicolas. 17th Biennial SGA Meeting - Proceedings Volume 1. Geneva: Society for Geology Applied to Mineral Deposits, 2023, s. 238-241. ISBN 978-2-8399-4044-3.

@inproceedings{2520377,
   author = {Georgieva, Sylvina and Vassileva, Rossitsa D and Milenkov, Georgi and Cempírek, Jan and Škoda, Radek},
   address = {Geneva},
   booktitle = {17th Biennial SGA Meeting - Proceedings Volume 1},
   editor = {Chelle-Michou Cyril, Saintilan Nicolas},
   keywords = {Djurkovo deposit; polymetallic vein; pegmatite dykes; high-grade metamorphic complex; Central Rhodopes; gneisses},
   howpublished = {tištěná verze "print"},
   language = {eng},
   location = {Geneva},
   isbn = {978-2-8399-4044-3},
   pages = {238-241},
   publisher = {Society for Geology Applied to Mineral Deposits},
   title = {Rare-earth element mineralization in altered pegmatites from the Djurkovo Pb-Zn deposit, Central Rhodopes},
   url = {https://www.e-sga.org/fileadmin/PDF/Conference_proceedings/Zuerich/SGA_2023_Zurich_Volume_1.pdf},
   year = {2023}
}

TY  - CONF
ID  - 2520377
AU  - Georgieva, Sylvina - Vassileva, Rossitsa D - Milenkov, Georgi - Cempírek, Jan - Škoda, Radek
PY  - 2023
TI  - Rare-earth element mineralization in altered pegmatites from the Djurkovo Pb-Zn deposit, Central Rhodopes
PB  - Society for Geology Applied to Mineral Deposits
CY  - Geneva
SN  - 9782839940443
KW  - Djurkovo deposit
KW  - polymetallic vein
KW  - pegmatite dykes
KW  - high-grade metamorphic complex
KW  - Central Rhodopes
KW  - gneisses
UR  - https://www.e-sga.org/fileadmin/PDF/Conference_proceedings/Zuerich/SGA_2023_Zurich_Volume_1.pdf
N2  - The Djurkovo polymetallic vein deposit is formed by veins filling open space in various gneisses that compose the high-grade metamorphic complex in the Central Rhodopes. Abundant deformed concordant or crosscutting pegmatites of varying thickness are common in the metamorphic sequence. The studied pegmatite dykes consist mainly of plagioclase, K-feldspar, quartz, and minor micas. The main accessory minerals are allanite- (Ce), titanite, apatite and zircon. Late hydrothermal overprint and alteration of pegmatites led to formation of epidote-group minerals, adularia, albite, sericite, chlorite, carbonate, quartz and leucoxene. The secondary minerals also include rare earth element (REE+Y) and Th, U fluorcarbonate - phosphate - oxide assemblages. This mineral association typically occurs as very fine-grained (. 20 mu m) anhedral disseminations, observed along fractures and dissolved zones in allanite and titanite that evidently are the main source for the REEs. This indicates remobilization of REEs followed by formation of new phases during the late-stage hydrothermal activity. Limited mobility of REEs is illustrated by precipitation of the newly-formed minerals within the grains of the altered accessory minerals. The studied pegmatites retain a significant amount of accessory minerals rich in incompatible elements and despite being hydrothermally altered they could be considered as their potential source.
ER  -

GEORGIEVA, Sylvina; Rossitsa D VASSILEVA; Georgi MILENKOV; Jan CEMPÍREK a Radek ŠKODA. Rare-earth element mineralization in altered pegmatites from the Djurkovo Pb-Zn deposit, Central Rhodopes. In Chelle-Michou Cyril, Saintilan Nicolas. \textit{17th Biennial SGA Meeting - Proceedings Volume 1}. Geneva: Society for Geology Applied to Mineral Deposits, 2023, s.~238-241. ISBN~978-2-8399-4044-3.

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