Fig. 5
From: Potential geological risks from mud diatremes in the orogen regime of Southwestern Taiwan

Downcore distributions of particle grain size and fractional porosity for boreholes. (a) Core AT1, (b) Core BH3. The numbers represent the C-14 dating ages, indicated as “before present” (BP). (c) The fractional porosity represents the mean value measured in the core Sect. (1 m) with a resolution of 1 mm, while the error bars depict the 1σ range of data distributions.