Cryo-BIB-SEM of oil-brine filled Lixhe limestone

Oven dried limestone (grey) was saturated with oil (red) and sodium-chlorine brine (blue). The fluid-filled sample was slush-frozen in LN2 and a 2 mm2 large cross-section was prepared using Broad-Ion-Beam-milling under cryogenic conditions. Subsequently the sample was analyzed in a cryo-SEM using secondary electrons (SE), backscattered electrons (BSE), and chemical analysis using EDS (insets).
See Schmatz et al. (2016) for further information.

Cryo-BIB-SEM of oil-brine filled Lixhe limestone