- 1GFZ German Research Centre for Geosciences, Fluid Systems Modelling, Potsdam, Germany (maribo@gfz.de)
- 2University of Potsdam, Institute of Geosciences, Potsdam, Germany
- 3BRGM, Orléans Cedex 2, France
- 4Hydroisotop, Schweitenkirchen, Germany
- 5CIEMAT, Departamento de Medio Ambiente, Madrid, Spain
- 6British Geological Survey (BGS), Nottingham, United Kingdom
- 7Naturhistorisches Museum Bern (NMBE), Bern, Switzerland
- 8Federal Office of Topography swisstopo, Wabern, Switzerland
- 9Nuclear Waste Services (NWS), Calderbridge, United Kingdom
- 10Federal Institute for Geosciences and Natural Resources (BGR), Hannover, Germany
- *A full list of authors appears at the end of the abstract
Opalinus Clay is chosen as host rock for the deep geological disposal of nuclear waste in Switzerland and is also being considered in Germany. The underlying Staffelegg Formation comprises potentially water-bearing layers. To investigate the hydrogeological setting of these two formations at the Swiss Rock Laboratory in Mont Terri two bore holes have been drilled in the framework of the HS-Experiment (Hydrogeological Survey). The 58 m long BHS-1 starts in the Lower Shaly facies of the Opalinus Clay, crossects the entire Staffelegg formation and ends in the Triassic Klettgau formation. The shorter BHS-2 provides additional data from the carbonate-rich sandy facies and Lower Shaly facies of the Opalinus Clay. The presented data publication provides geochemical, mineralogical and petrophysical parameters of rocks, pore water and (dissolved) gases from these two drillings [1].
[1] Bonitz, Marie et al. (2024): Hydrogeological characterisation of a Lower Jurassic rock unit at the Mont Terri - I: Data of the Opalinus Clay and the Staffelegg Formation. GFZ Data Services. https://doi.org/10.5880/GFZ.3.4.2024.001
Bonitz, Marie (1,2); Blessing, Michaela (3); Eichinger, Florian (4); Fernández, Ana María (5); Flehoc, Christine (3) ; Harrington, Jon (6); Hostettler, Bernhard (7); Jaeggi, David (8); Kampman, Niko (9); Kemp, Simon (6); Kühn, Michael (1,2); Lahfid, Abdeltif (3); León, Francisco J. (5); Lerouge, Catherine (3); Maubec, Nicolas (3); Niedermann, Samuel (1); Nieto, Paula (5); Ostertag-Henning, Christian (10); Regard, Vincent (8); Schleicher, Anja M. (1,2); Stammeier, Jessica A. (1); Strauch, Bettina (1); Valley, Benoit (11); Wille, Guillaume (3); Wiseall, Andrew (9); Zimmer, Martin (1); Zwahlen, Carmen (12) (11) University of Neuchâtel, Centre for Hydrogeology and Geothermics (CHYN), Neuchâtel, Switzerland (12) University of Bern, Institute of Geological Sciences, Bern, Switzerland
How to cite: Bonitz, M., Blessing, M., Eichinger, F., Fernández, A. M., Flehoc, C., Harrington, J., Hostettler, B., Jaeggi, D., Kampman, N., Kemp, S., Kühn, M., Lahfid, A., León, F. J., Lerouge, C., Maubec, N., Niedermann, S., Nieto, P., Ostertag-Henning, C., Regard, V., and Schleicher, A. M. and the HS-A Team: Hydrogeological characterisation of a Lower Jurassic rock unit at the Mont Terri – a new petrophysical, mineralogical and geochemical data set of the Opalinus Clay and the Staffelegg Formation, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-9163, https://doi.org/10.5194/egusphere-egu25-9163, 2025.
