C14 Radiocarbon Dating - Sample - GU-3403

Charcoal from a small patch of burnt material interpreted as the product of in situ burning, overlain by building collapse rubble. Appears to be a single fire using driftwood when the blockhouse was intact but not in everyday use. See also GU-3401 (1290+/-70 BP) and GU-3402 (1200+/-60 BP).

Canmore ID 518

Map Number HU30NE

Site type Fort (Period Unassigned)

Site number 5

NGR 438890 1108790

Council 360

County 29

Parish DUNROSSNESS

Lab Analysis ID GU-3403

Material Dated charcoal (Null)

Researcher Carter et al 1995, 429, 439, 444

Sponsor Historic Scotland

Uncalibrated date bp +/- error 1310 bp +/-90

Uncalibrated date ad/bc +/- error ad 640 +/-90

Delta -26.6

Completed by Scottish Universities Environmental Research Centre

Calibration program used OxCal 3.10