C14 Radiocarbon Dating - Sample - AA-24956

A single piece of Pomoideae sp. charcoal from an ard mark cut into green clay; seemingly a clay early in the sequence, although it overlies at least one OGS. Appears to have dropped into an ard mark, rather than having been ploughed up from below; but it was abraded and this cannot be proved.

Canmore ID 4156

Map Number NB23SW

Site type Avenue (Neolithic), Chambered Cairn (Neolithic), Stone Circle (Neolithic) - (Bronze Age), Stone Row(S) (Neolithic) - (Bronze Age)

Site number 1

NGR 121300 933017

Council 410

County 26

Parish UIG

Lab Analysis ID AA-24956

Material Dated charcoal

Researcher Ashmore 1997

Sponsor Historic Scotland

Uncalibrated date bp +/- error 3580 bp +/-45

Uncalibrated date ad/bc +/- error 1630 bc +/-45

Delta -26.6

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

Calibration program used OxCal 3.10