C14 Radiocarbon Dating - Index - Brough Of Birsay
| Lab Analysis ID | Material Dated | Uncalibrated date bp | Uncalibrated date bc/ad | Calibrated date |
|---|---|---|---|---|
| GU-1390 | charcoal () |
1115 bp +/-60 | ad 835 +/-60 | cal AD 680 to 1160 |
| GU-1570 | charcoal (n.i.) |
1075 bp +/-60 | ad 875 +/-60 | cal AD 650 to 1250 |
| GU-1571 | charcoal () |
1045 bp +/-80 | ad 905 +/-80 | cal AD 720 to 1220 |
| GU-1572 | charcoal (n.i.) |
1050 bp +/-60 | ad 900 +/-60 | cal AD 720 to 1220 |
| GU-1573 | charcoal (n.i.) |
995 bp +/-60 | ad 955 +/-60 | cal AD 780 to 1260 |
| GU-1597 | charcoal () |
1195 bp +/-60 | ad 755 +/-60 | cal AD 640 to 1030 |
| GU-1598 | charcoal () |
1250 bp +/-90 | ad 700 +/-90 | cal AD 540 to 1030 |
| GU-1599 | charcoal () |
1280 bp +/-60 | ad 670 +/-60 | cal AD 560 to 990 |
| GU-1612 | charcoal (n.i.) |
1170 bp +/-80 | ad 780 +/-80 | cal AD 680 to 1020 |
| GU-1613 | charcoal (n.i.) |
980 bp +/-60 | ad 970 +/-60 | cal AD 900 to 1220 |
| GU-1614 | charcoal (n.i.) |
1074 bp +/-55 | ad 876 +/-55 | cal AD 780 to 1040 |
| GU-1615 | charcoal (n.i.) |
1275 bp +/-60 | ad 675 +/-60 | cal AD 650 to 890 |
| GU-1616 | charcoal (n.i.) |
1240 bp +/-60 | ad 710 +/-60 | cal AD 660 to 950 |
| GU-1668 | charcoal (n.i.) |
1395 bp +/-85 | ad 555 +/-85 | cal AD 430 to 810 |
| GU-1671 | charcoal (n.i.) |
2325 bp +/-75 | 375 bc +/-75 | 800 to 150 cal BC |
| HAR-2078 | charcoal () |
1040 bp +/-70 | ad 910 +/-70 | cal AD 700 to 1250 |
| HAR-2079 | charcoal () |
1020 bp +/-70 | ad 930 +/-70 | cal AD 770 to 1250 |
| HAR-2083 | charcoal () |
1000 bp +/-70 | ad 950 +/-70 | cal AD 780 to 1260 |
| HAR-2742 | charcoal () |
1150 bp +/-70 | ad 800 +/-70 | cal AD 660 to 1160 |
| HAR-2743 | charcoal () |
1140 bp +/-70 | ad 810 +/-70 | cal AD 660 to 1160 |
| HAR-2744 | charcoal () |
1020 bp +/-70 | ad 930 +/-70 | cal AD 770 to 1250 |
| HAR-2751 | charcoal () |
1350 bp +/-60 | ad 600 +/-60 | cal AD 400 to 1000 |
| HAR-2755 | charcoal () |
1150 bp +/-80 | ad 800 +/-80 | cal AD 660 to 1160 |
| GU-1254 | charcoal (n.i.) |
1275 bp +/-50 | ad 675 +/-50 | cal AD 560 to 1000 |
| GU-1255 | charcoal (n.i.) |
1170 bp +/-80 | ad 780 +/-80 | cal AD 650 to 1040 |
| GU-1392 | charcoal () |
1040 bp +/-65 | ad 910 +/-65 | cal AD 700 to 1250 |
| GU-1394 | charcoal () |
975 bp +/-60 | ad 975 +/-60 | cal AD 860 to 1280 |
| GU-1251 | charcoal (n.i.) |
1380 bp +/-55 | ad 570 +/-55 | cal AD 430 to 890 |
| GU-1252 | charcoal (n.i.) |
1280 bp +/-50 | ad 670 +/-50 | cal AD 560 to 990 |
| GU-1253 | charcoal (n.i.) |
1260 bp +/-50 | ad 690 +/-50 | cal AD 600 to 1000 |
| GU-1391 | charcoal () |
915 bp +/-95 | ad 1035 +/-95 | cal AD 750 to 1400 |
| GU-1192 | charcoal (n.i.) |
1135 bp +/-55 | ad 815 +/-55 | cal AD 660 to 1160 |
| GU-1193 | charcoal (n.i.) |
985 bp +/-60 | ad 965 +/-60 | cal AD 810 to 1280 |
| GU-1194 | charcoal (n.i.) |
1205 bp +/-85 | ad 745 +/-85 | cal AD 600 to 1150 |
| GU-1195 | charcoal (n.i.) |
1130 bp +/-55 | ad 820 +/-55 | cal AD 660 to 1160 |
| GU-1229 | charcoal (n.i.) |
1305 bp +/-55 | ad 645 +/-55 | cal AD 540 to 980 |
| GU-1230 | charred grain (n.i.) |
1060 bp +/-60 | ad 890 +/-60 | cal AD 650 to 1250 |
| GU-1318 | charcoal (n.i.) |
1260 bp +/-50 | ad 690 +/-50 | cal AD 600 to 1000 |
| GU-1319 | charcoal (n.i.) |
1155 bp +/-55 | ad 795 +/-55 | cal AD 650 to 1120 |
