C14 Radiocarbon Dating - Sample - AA-53152

Peat humin (CAERL EIGHT) from a naturally-accumulating peat that developed in a narrow (150m x 50m) east-west elongated basin at Shearington, 1 km east of Caerlaverock , at around 9m OD. The cliff was cut by the highest Holocene sea-level at the culmination of the postglacial marine transgression, the event that created the substrate to the New and Old Castles at Caerlaverock.

Canmore ID 66101

Map Number NY06NW

Site type Castle (Medieval), Earthwork(S) (Period Unassigned)

Site number 7

NGR 302706 565451

Council 170

County 10

Parish CAERLAVEROCK

Lab Analysis ID AA-53152

Material Dated Peat (n.i.)

Sponsor HS

Uncalibrated date bp +/- error 6105 bp +/-45

Uncalibrated date ad/bc +/- error 4155 bc +/-45

Delta -28.9

Calibration program used No

Calibration curve used No