Fluid inclusion characteristics and paleothermal structure of the adularia-sericite type epithermal deposit at Telkibanya, Tokaj Mts., northeast Hungary

F. Molnar, T. Zelenka

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Fluid inclusion data for quartz, adularia, calcite and sphalerite related to mineralization hosted by Neogene volcanic rocks at Telkibanya indicate that the temperature varied between 270°C and 130°C during hydrothermal activity. Intensive boiling of fluids took place at about 230°C, and the apparent salinity of the hydrothermal solution was ≤5 NaCl equiv. wt.%. As a consequence of boiling, a vapour-rich, nearly isothermal system developed in the vuggy-brecciated zones of host rocks around ore veins. Euhedral quartz that precipitated in these zones is morphologically different from the vein-filling quartz aggregates. The paleotemperature distribution was reconstructed on the basis of the spatial distribution of average homogenization temperatures of quartz vein samples, and taking into account the level differences of sampling. -from Authors

Original languageEnglish
Pages (from-to)205-215
Number of pages11
JournalGeologica Carpathica
Issue number4
Publication statusPublished - Jan 1 1995


ASJC Scopus subject areas

  • Geology

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