University of Pennsylvania Radiocarbon Dates IX

Abstract

This date list includes those series of samples completed in this laboratory as of November, 1965. The B.P. ages are based upon A.D. 1950, and are calculated with a half-life value of 5568 yr. Errors quoted are those derived from measurements of sample, background, and modern-age calibration, and do not include any half-life error. All samples were pretreated with 3N HCl, and some, where noted, received additional pretreatment with 2% NaOH for the removal of possible humic contaminants.

Radiocarbon Dating in Eastern Arctic Archaeology: A Flexible Approach

“…Harp's work at Port-aux-Choix 2 in Newfoundland is probably the best published example, although other efforts at cross-dating Eastern Arctic materials are in the process of analysis. Dates on wood and charred seal fat taken from contemporary association show a statistically significant mean difference of 376 ± 34 years (Stuckenrath et al 1966). If we consider the fractionation correction for seal fat, we obtain a reservoir effect value of 341 ± 49 years for Port-aux-Choix 2.…”

“…' 1 -3 5 ± 3 5 -3 5 ± 3 5 -3 5 ± 3 5 -3 5 ± 3 5 -3 5 ± 3 5 -3 5 ± 3 5 145 ±35 -3 5 ± 3 5 -4 5 ± 6 0 ( 1965,1966Dyke and Fyles 1964;Gilot 1971;Hubbs and Bien 1967;Kigoshi et al 1969;Kigoshi et al 1973;Lowdon et al 1969Lowdon et al , 1972McGhee and Tuck 1976;Ralph and Ackerman 1961;Rutherford et al 1973Rutherford et al , 1975Stuckenrath et al 1966;Stuckenrath and Mielke 1973;Tauber 1960Tauber , 1966Tauber , 1968Tauber , 1973Taylor 1958;Wilmeth 1978. Key to Table 6.…”

University of Pennsylvania Radiocarbon Dates XIII

“…?l900-?l350 B.C.). This chronology is based on earlier radiocarbon dates from Hasanlu and studies of relative chronology (Dyson, 1965;Ralph, 1959;Stuckenrath, 1963; Stuckenrath et al, 1966).…”

Tikal timbers and temples: ancient Maya agroforestry and the end of time

“…Our working hypothesis is that the agroforestry practices of the ancient Maya at Tikal would have changed through time as wood resources became scarce and a decline in the wood supply would be reflected in the selection and quality of timbers incorporated into the polity's major structures throughout the Late Classic period. The chronological assessments of structures follow glyph translations and Gregorian date conversions (Harrison, 1999;Martin and Grube, 2008) coupled with radiocarbon dates taken from the lintels and beams themselves (e.g., Satterthwaite and Ralph, 1960;Ralph, 1965;Stuckenrath et al, 1966). Because dates inscribed onto lintels are often commemorative and somewhat variable (Coe et al, 1986), dedicatory dates are taken as the latest date inscribed on the structure or its accompanying stela.…”