C14 Radiocarbon Dating - Sample - GU-1786

Charcoal from a Phase 7 layer of burnt barley, straw and charred wood, overlying the second workshop floor.

Canmore ID 1731

Map Number HY21SE

Site type Broch (Iron Age), Chambered Cairn (Neolithic), Souterrain (Prehistoric)

Site number 41

NGR 327590 1010920

Council 330

County 22

Parish STROMNESS

Lab Analysis ID GU-1786

Material Dated charcoal (n.i.)

Sponsor HS

Uncalibrated date bp +/- error 1975 bp +/-55

Uncalibrated date ad/bc +/- error 25 bc +/-55

Delta -25.8

Calibration program used No

Calibration curve used No