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| Laboratory Code: | AA-51419 (GU-10384) |
| Submitter: | Andrew Copp Field Archaeology Specialists Ltd, University of York, King's Manor, York, YO1 7EP |
| Site reference: | Nosterfield sand and gravel quarry, North Yorkshire |
| Sample reference: | F216 C1482 G |
| Material: | Sediment: Acid wash only |
| Delta 13C rel. PDB: | -26.0%0 |
| Radiocarbon Age: | BP 6625 ± 60 |
N.B.
1. The above C14 age is quoted in conventional years BP (before 1950AD). The
error, which is expressed at the one sigma level of confidence, includes components
from the counting statistics on the sample, modern reference standard and
blank and the random machine error.
2. The calibrated age ranges are determined from the University of Oxford Radiocarbon Accelerator Unit calibration programme (OxCal3)
3. Samples with an AA coding are measured at the University of Arizona AMS facility and should be quoted as such in any reports within the scientific literature. Any questions directed to SURRC should also quote the GU coding that is given in parentheses after the AA code.
Conventional age and calibration age ranges calculated by: R.Anderson Date: 26-11-02
Checked and signed off by: P.Naysmith Date: 26-11-02