ABSTRACT
The Topla zinc-lead deposit is hosted in Anisian dolostones of the Northern Karavanke Mts., Slovenia. Combined inorganic and organic geochemical data from the host carbonates help gain a better understanding of the genesis and alteration of this deposit. The similar δ13C values of the organic extracts and associated kerogens suggest indigenity of the hydrocarbons staining the host dolostones. The small variability of the δ13C of the individual n-alkanes and isoprenoids, combined to the uniform and similar REE-patterns of the barren and mineralized samples point to a syngenetic nature of the studied orebody. These results best support a sedimentary exhalative (SEDEX) origin of Topla deposit.
