Metamorphic manganese mineralization bound to the metacarbonate lenses at the Smolník – Malá Hekerová deposit in the Spišsko-gemerské rudohorie Mts., Western Carpathians (Slovakia)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F25%3A10136960" target="_blank" >RIV/00023272:_____/25:10136960 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s00710-025-00922-4" target="_blank" >https://link.springer.com/article/10.1007/s00710-025-00922-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00710-025-00922-4" target="_blank" >10.1007/s00710-025-00922-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Metamorphic manganese mineralization bound to the metacarbonate lenses at the Smolník – Malá Hekerová deposit in the Spišsko-gemerské rudohorie Mts., Western Carpathians (Slovakia)

Popis výsledku v původním jazyce

Metamorphic manganese mineralisation recently studied at the Smolník - Malá Hekerová deposit is situated within the Early Paleozoic metamorphic volcano-sedimentary sequences of the Bystrý; potok Formation (Gelnica Group, Gemericum), Spišssko-gemerské rudohorie Mountains, Slovakia. The manganese mineralisation is associated with metacarbonate bodies, within which Mn-rich calcite, spessartine, titanite, stilpnomelane, fluorapatite and pyrite have been identified. Stilpnomelane is enriched in Mn (up to 2.32 apfu) and Mg (up to 1.68 apfu), while being depleted in Ca, K, Ba and Na. It is considered a retrograde phase formed by the partial dissolution of spessartine. The carbonate-silicate bodies hosting the manganese mineralisation consist of rhodochrosite, kutnohorite, calcite, rhodonite group minerals, spessartine, tephroite, pyrosmalite-(Mn), magnetite, pyrophanite, clino-suenoite, clino-ferro-suenoite, actinolite, clinochlore, chamosite, caryopilite, greenalite, quartz, alabandite, pyrite, pyrrhotite, galena, sphalerite and chalcopyrite. This manganese assemblage is the result of multistage metamorphism during the Variscan and Alpine tectono-metamorphic evolution, which led to distinct mineral associations influenced by the release or incorporation of Fe-rich fluids, silicate alterations and recrystallisation. The multi-stage development is most evident in spessartine crystals, which exhibit chemically strongly distinguishable zones. The presence of significantly Fe-rich tephroite (with up to 31 mol% fayalite), pyrosmalite-(Mn) (with up to 2.39 apfu Fe), magnetite, pyrophanite, rhodochrosite and quartz inclusions in spessartine preserves the primary chemical composition of the later developing manganese ore. This suggests it formed concurrently with nearby magnetite lenses, as observed in the other Western Carpathian occurrences. Post-Variscan hydrothermal activity led to a greater accumulation of sulfides at the studied occurrence.

Název v anglickém jazyce

Metamorphic manganese mineralization bound to the metacarbonate lenses at the Smolník – Malá Hekerová deposit in the Spišsko-gemerské rudohorie Mts., Western Carpathians (Slovakia)

Popis výsledku anglicky

Metamorphic manganese mineralisation recently studied at the Smolník - Malá Hekerová deposit is situated within the Early Paleozoic metamorphic volcano-sedimentary sequences of the Bystrý; potok Formation (Gelnica Group, Gemericum), Spišssko-gemerské rudohorie Mountains, Slovakia. The manganese mineralisation is associated with metacarbonate bodies, within which Mn-rich calcite, spessartine, titanite, stilpnomelane, fluorapatite and pyrite have been identified. Stilpnomelane is enriched in Mn (up to 2.32 apfu) and Mg (up to 1.68 apfu), while being depleted in Ca, K, Ba and Na. It is considered a retrograde phase formed by the partial dissolution of spessartine. The carbonate-silicate bodies hosting the manganese mineralisation consist of rhodochrosite, kutnohorite, calcite, rhodonite group minerals, spessartine, tephroite, pyrosmalite-(Mn), magnetite, pyrophanite, clino-suenoite, clino-ferro-suenoite, actinolite, clinochlore, chamosite, caryopilite, greenalite, quartz, alabandite, pyrite, pyrrhotite, galena, sphalerite and chalcopyrite. This manganese assemblage is the result of multistage metamorphism during the Variscan and Alpine tectono-metamorphic evolution, which led to distinct mineral associations influenced by the release or incorporation of Fe-rich fluids, silicate alterations and recrystallisation. The multi-stage development is most evident in spessartine crystals, which exhibit chemically strongly distinguishable zones. The presence of significantly Fe-rich tephroite (with up to 31 mol% fayalite), pyrosmalite-(Mn) (with up to 2.39 apfu Fe), magnetite, pyrophanite, rhodochrosite and quartz inclusions in spessartine preserves the primary chemical composition of the later developing manganese ore. This suggests it formed concurrently with nearby magnetite lenses, as observed in the other Western Carpathian occurrences. Post-Variscan hydrothermal activity led to a greater accumulation of sulfides at the studied occurrence.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10504 - Mineralogy

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Mineralogy and Petrology

ISSN

0930-0708

e-ISSN

—

Svazek periodika

119

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

16

Strana od-do

243-258

Kód UT WoS článku

001501013500001

EID výsledku v databázi Scopus

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