Science – Society – Technology
a) Core data (E GrSk 3/90 only; coring in Gt GrSk 4/05 was planned but could not be realized). The E GrSk 3/90 borehole was cored in the depth range of ca. 4040–4270 m (230 m). Due to disposal of core material in the late 1990s, only the lowermost 63 m of this section are still available in the repository | ||
Density and porosity | In total 344 measured samples: 287 legacy samples (Hamann et al. 1991), 29 samples (Trautwein 2005), 17 samples (Lotz 2004), 11 samples (this study) | |
Gas permeability | In total 137 measured samples: 109 legacy samples (Hamann et al. 1991), 28 samples (Trautwein 2005) plus 3 measured under in-situ conditions (Trautwein 2005) | |
Thermal conductivity | ||
Thermal diffusivity | Norden et al. (2022) | |
b) Well logging | ||
Stratigraphy | E GrSk 3/90 | Gt GrSk 4/05 |
Post-Rotliegend | Gamma-ray (GR) | GR |
Prae-Zechstein | GR Temperature log Sonic/velocity log Bulk density log Neutron porosity log Pulsed neutron log Electrical image log | GR, Spectral GR logging tools used for correlation only due to inconsistent quality (mineral detection, dual laterolog, monopole acoustic) |