C14 Radiocarbon Dating - Sample - SUERC-2425

A charred barley grain (Sample 30857) from a middeny occupation surface 3108 in the north of Structure 11, an Iron Age wheelhouse. The context is sealed by a middeny layer 3058 with charcoal patches. The middeny occupation surface 3108 seals an early pier 1440 and an aisled pier 3369. The cereal grain was probably accidentally charred and included in the floor surface as a constituent of ash raked out from the central hearth.

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-2425

Material Dated Charred grain (hordeum spp)

Researcher Nicholson, R

Sponsor Historic Scotland

Uncalibrated date bp +/- error 1270 bp +/-35

Uncalibrated date ad/bc +/- error ad 680 +/-35

Delta -24.2

Completed by Scottish Universities Environmental Research Centre

Calibration program used OxCal 3.10