f Seismic reflections in crystalline rocks

In 1989 comprehensive seismic studies were carried out at the German deep drilling location (KTB) in the Oberpfalz (NE-Bavaria) by the DEKORP group. The survey is known as Integrated Seismics Oberpfalz 1989 (IS089). The aims were to predict events ahead of the drill bit, to investigate the structures and to connect the more or les small-scale results from the KTB-drillhole with the large-scale geological/tectonical environment, to investigate parameters as seismic velocities and anisotropy and to learn about the nature of seismic-reflections in crystalline area.