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Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

From: Fault weakening caused by smectite swelling

Fig. 1

Location, lithological units, porosity and mineralogical profiles of the JFAST drill site. a Location of the JFAST drill site (Site C0019; modified from Kimura et al. 2012). b Lithological units at the JFAST drill site, porosity profile deduced from logging data and core sample analysis (MAD), and variations in the bulk-rock smectite content. The solid and dotted lines along the porosity profile represent 1σ and 2σ, respectively. Note that the fault zone (Unit 4) is strongly enriched in smectite

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