C14 Radiocarbon Dating - Sample - AA-22910

Barley seeds from a peat layer (818) thought to have formed in a freshwater loch, prior to a sequence of extra mural deposits outside the broch. The deposit is sandwiched by clean sand. The peat layers accumulated in a freshwater loch, incorporating this seed and twig (burnt) which may have blown in from human occupation on the islet. The seed was probably incorporated 'fresh' whilst it was still on the surface.

Canmore ID 9825

Map Number NF72NW

Site type Broch (Iron Age), Midden (Iron Age) - (Pictish), Settlement (Pictish)

Site number 1

NGR 71407 829815

Council 410

County 14

Parish SOUTH UIST

Lab Analysis ID AA-22910

Material Dated charred grain (hordeum spp)

Researcher Parker-Pearson and Sharples 1999

Sponsor Historic Scotland

Uncalibrated date bp +/- error 2075 bp +/-45

Uncalibrated date ad/bc +/- error 125 bc +/-45

Completed by National Science Foundation Radiocarbon Facility University of Arizona, USA

Calibration program used OxCal 3.10