Table 3 Pore number and radius of red-bed soft rock in different water–rock interaction cycles.

Sample no.

Images no.

Average radius \(\stackrel{-}{r} (\mathrm{\mu m})\)

Mean \(\stackrel{-}{R} (\mathrm{\mu m})\)

Maximum radius \({\mathrm{R}}_{max}(\mathrm{\mu m})\)

Mean \(\overline{{{\mathrm{R}}_{max}}}(\mathrm{\mu m})\)

Pore number

Mean