Jord, til flotering

Om genstanden

Materiale udtaget til ams-datering.

AMS-datering modtaget 19. marts 2009 med følgende oplysninger:
AAR-11988.
Type: Plant charred (brødhvede)
Indsamlingsoplysninger: Rynkeby Mølle 09.01.08 sb. 159, Ringe sogn, Svendborg Amt.
Korn af brødhvede. Vedbestemt af Eva Grøndahl (1 stk.). Prøven er udtaget ved flotering og efterfølgende kursorisk gennemsyn. Prøven stammer fra huskonstruktion i et hus, der antages dateret til 1000-tallet. Lokaliteten er beliggende i den sydlige udkant af det nuværende Rynkeby ved Ringe, og må som sådan udgøre dele af de ældste byfaser af denne adelby.
Depth: 0.4 m (bl s)
Latitude: 6123560 (UTM)
Longitude: 593510 (UTM)
Expected age: 1000-1500 e.Kr.

C14 Alder (BP): 1148 ± 32

Kalibreret alder:
68.2% probability
828AD ( 5.2%) 839AD
865AD (25.3%) 903AD
915AD (37.7%) 969AD
95.4% probability
780AD ( 4.2%) 792AD
804AD (91.2%) 975AD

d13C (dual-inlet): -23.92 ± 0.05
Submitter ID: OBM3146X407
Submitter: Jesper Hansen

14C ages are reported in conventional radiocarbon years BP (before present = 1950) in accordance with international convention (M. Stuiver & H.A. Polach: Discussion of reporting 14C data. Radiocarbon 19(3) (1977) p. 355).
Thus, all calculated 14C ages have been corrected for fractionation so as to refer the result to be equivalent with the standard d13C value of -25‰ (wood). Reported d13C and d15N values have been measured by high-precision stable-isotope mass spectrometry. The values represent the isotopic composition of the original sample and is therefore useful for interpretation regarding association with the terrestrial/marine/freshwater food chains as well as trophic levels.
Calibrated ages in calendar years have been obtained from the calibration curves in Reimer et al. 2004 Radiocarbon vol. 46(3) pp 1029-1058 by means of the Oxcal v4.0 calibration programme (Bronk Ramsey C., 2001, Radiocarbon, 43 (2A) 355-363) using the terrestrial calibration curve, IntCal04 (for marine samples, see below). The probability method has been used to calculate the calibrated age ranges corresponding to 68.2% probability (1 sigma) and 95.4% probability (2 sigma) with the probability of each range given in brackets (indicating the probability that the true date belongs to the interval in question).

Specifikt fundsted: LUW

Fase: K53