C14 Radiocarbon Dating - Sample - SUERC-2431

A charred barley grain (Sample 26651) taken from an accumulation of shell and charred plant remains/peat 3180, sealed by red ash midden 3182 at the side of the broch wall (structure 9). The accumulation is probably a general dump of refuse/hearth rake-out. It overlies the broch foundations and shillet construction layer 3198.

Canmore ID 556

Map Number HU31SE

Site type Broch (Iron Age), Settlement (Period Unassigned)

Site number 21

NGR 438980 1110650

Council 360

County 29

Parish DUNROSSNESS

Lab Analysis ID SUERC-2431

Material Dated Charred grain (hordeum spp)

Researcher Nicholson, R

Sponsor Historic Scotland

Uncalibrated date bp +/- error 1710 bp +/-40

Uncalibrated date ad/bc +/- error ad 240 +/-40

Delta -22.8

Completed by Scottish Universities Environmental Research Centre

Calibration program used OxCal 3.10