Dein Suchergebnis zum Thema: have

Faults have lowered the originally up to 70 m thick A 2 or Hauptanhydrite to the

historical copper shale mine excavations on the south-eastern flank of Harz Mountains have

Threats and chances Unfortunately, parts of this landscape have already been destroyed

Additional mapping on a large scale and old drillholes in potash near Duderstadt have

rock cover in Middle Europe -, a unique variety and density of karst phenomena have

However, during the last fifty years, most of these mines have been closed and are

In this context, we have to keep in mind that initially no mineral fertilizers and

Germany, fknolle@t-online.de    Since the 17th century, the copper shale miners have

They have a low water-holding capacity.

Which possibilities geophysics have to indicate cavities? 18 RÖSLER, H.