Helicopter-borne Electromagnetics (HEM) Area 175 Schleiz

BGR conducted an airborne survey in the region of Schleiz and Greiz (Thuringia) as part of the BMBF project DESMEX. This is a reconaissance survey with the BGR geophysical standard measuring system. The survey area is located between Gera and Plauen on the edge of the Thuringian Slate mountains on the border to and partly in Saxony. The size of the area is about 445 km². The area was surveyed with 10 flights totalling to 1591 line-km (374.072 survey points). The nominal separation of the 124 NW-SE lines and 8 NE-SW tie lines was 300 m and 2000 m, respectively. The maps display the geophysical parameters apparent resistivity and centroid depth derived from the HEM data at the six frequencies of the HEM system (0.4 - 130 kHz). Furthermore, horizontal and vertical slices were derived from layered-earth models (resistivities and thicknesses of six or twenty model layers).