The chalcopyrite deposit Teichgraben is situated 15 km W of Leoben in Austria. There is evidence for first exploitation activity during bronze-age, systematic mining started in the 15th century. The investigated orebody occurs in the Greywacke Zone of the Upper Austro-Alpine nappe. The mineralisations are bound to weekly metamorphic greenschists in the tectonically highest segment of the Greywacke Zone, the Noric Nappe.<br>Only few information is available on the extension of the mineralised zone to deeper layers. We investigated the extension of this mineralised zone in an integrated geophysical approach ranging from magnetic, electromagnetic, electric, self potential to spectral gamma ray measurements. <br>The interpretation was done using an electrofacies approach. The lithologies could be specified using the geological mapping and documentations available from the mining activity. A thrust fault between nappes of the greywacke zone intersects the area. The mineralised zone itself is interrupted by small faults. All mentioned features can be recognized on the measured geophysical data and the extension of the mineralised zone has been interpreted based on the integration of all results. The depth extend of the mineralised zone is limited to a maximum depth of about 50 m below the ancient base gallery.<br>


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