From: Quantitative measurement of bubble textures in pumice clasts using a digital stereo microscope with low-angled ring illumination
Unit
Mean \(\overline{R} \) (mm)
Std \(\overline{R} \) (mm)
Mean \(\overline{D}\)
Std \(\overline{D}\)
Mean vesicularitya (%)
2
0.303
0.075
0.369
0.074
78.6
5a
0.388
0.139
0.392
78.8
6
0.452
0.477
0.097
88.2