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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10504 - Mineralogy

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Mineralogy and Petrology

ISSN

0930-0708

e-ISSN

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Volume of the periodical

119

Issue of the periodical within the volume

2

Country of publishing house

AT - AUSTRIA

Number of pages

16

Pages from-to

243-258

UT code for WoS article

001501013500001

EID of the result in the Scopus database

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