Figure F18. Close-up photograph of macrofacies of the sucrosic dolostone ("snowstone") typical of Subunit IIIB (interval 194-1196A-44R-1, 85-91 cm). Homogenous lithology and the presence of rare fenestrae suggest that this rock could be derived from tidal flat muds.

Figure F18. Close-up photograph of macrofacies of the sucrosic dolostone ("snowstone") typical of Subunit IIIB (interval 194-1196A-44R-1, 85-91 cm). Homogenous lithology and the presence of rare fenestrae suggest that this rock could be derived from tidal flat muds.