February 04, 2010
Harz Minerals GmbH is prospecting for a SEDEX deposit
near the World class Rammelsberg mine in the Harz Mountains,
northern Germany.
Presently, the first phase of its drilling programme in the
Gosetal area has been completed. This first phase was aimed at a
relative shallow target, formed by a folded conductor at 100-300 m
depth.
Three out of the ten originally planned drill holes have now
been drilled successfully. The first phase of the drilling included
evaluation of the drill core, and down-hole and ground
electromagnetic surveys. The results confirmed the modeled fold
geometry of the shales in the underground. The near-surface
conductor, that was predicted based on modeling of the 2008
airborne TEM data, could not be confirmed. But down-hole EM
soundings indicated the presence of a conductor at ca. 500 m depth.
A relatively deep conductor is also predicted by the low frequency
component of the EM data from the 2008 airborne TEM survey. This
deep location places the conductor at stratigraphic level that is
similar to that of the close-by Rammelsberg mine. Further
geophysical surveys will be carried out within the coming weeks to
try and obtain a better definition of the deep conductor.
After evaluation and modeling of these new geophysical data,
drilling will continue to try and hit this deeper target.
Last updated: May 11, 2012