Interrogating a metre-scale fault zone in clay-rich caprock: A cross-hole study with DAS and geophones - Katinka Tuinstra; Antonio Pio Rinaldi; Federica Lanza; Pascal Edme; Matthijs Nuus; Prescelli Annan; Alba Zappone; Senecio Schefer; Hansruedi Maurer; Stefan Wiemer (Journal of Applied Geophysics, 2026)