Results 31 to 40 of about 378,683 (273)

Tartu Radiocarbon Dates IV [PDF]

open access: yesRadiocarbon, 1966
The following list includes C14 dates and deals with the results of the methodological investigations carried out at the Geobiochemical Laboratory of the Institute of Zoology and Botany of the Academy of Sciences of the Estonian SSR in 1967–1968.
J. M. Punning, E. Ilves, A. Liiva
openaire   +4 more sources

UCLA Radiocarbon Dates VIII [PDF]

open access: yesRadiocarbon, 1966
The measurements reported were made during the 2nd half of 1967 in the Isotope Lab. of the Inst. of Geophysics and Planetary Physics as a continuation of the UCLA date lists I through VII. Samples were analyzed as CO2-gas at close to one atm in a 7.5 L proportional counter with 3 energy channels described earlier.
Rainer Berger, W. F. Libby
openaire   +4 more sources

Groningen Radiocarbon Dates IV [PDF]

open access: yesRadiocarbon, 1963
An attempt has been made to assemble the large number of C14 dates measured in Groningen since the last date list was published in 1958. We have not succeeded in preparing all the measurements done in this time; the present list contains a more or less random selection. It is hoped the rest will be included in next year's list.
J. C. Vogel, H. T. Waterbolk
openaire   +3 more sources

A Review of Archaeological and Paleoecological Radiocarbon Dating in Bolivia

open access: yesOpen Quaternary, 2023
Radiocarbon dating is one of the most useful and widely used chronometric techniques available for archaeologists and other paleo-scientists. Although generally used for answering specific research questions, radiocarbon dates from archaeological sites ...
José M. Capriles
doaj   +1 more source

Bern Radiocarbon Dates V [PDF]

open access: yesRadiocarbon, 1965
This list includes about half of the samples measured during the last year. Many studies need further investigation and the results will be published later when additional information will make better interpretations possible.The equipment and the technique is essentially the same as described earlier (Bern IV).Reliable results on CO2 samples extracted
H. Oeschger, T. Riesen
openaire   +3 more sources

Use of three isotopes to calibrate human bone radiocarbon determinations from Kainapirina (SAC), Watom Island, Papua New Guinea [PDF]

open access: yes, 2005
In archaeological dating, the greatest confidence is usually placed upon radiocarbon results of material that can be directly related to a defined archaeological event.
Green, Roger, Petchey, Fiona
core   +1 more source

A Database of Radiocarbon Dates for Palaeoenvironmental Research in Eastern Africa

open access: yesOpen Quaternary, 2016
Radiocarbon dating is one of the most widely available and applied techniques to develop Late Quaternary chronologies of many ecosystems and is, thus, utilized in Quaternary studies, archaeology, hydrology, geomorphology, palaeoanthropology ...
Colin Courtney Mustaphi, Rob Marchant
doaj   +1 more source

Copenhagen Radiocarbon Dates VI [PDF]

open access: yesRadiocarbon, 1960
The following list comprises a selected number of measurements made up to November 1963. Age calculations are based on a contemporary value equal to 95% of the activity of the NBS oxalic-acid standard, and on a half life for C14of 5570 ± 30 yr.Results are expressed in years before 1950 and in the b.c.-a.d. scales.
openaire   +5 more sources

Łódź Radiocarbon Dates III [PDF]

open access: yesRadiocarbon, 1984
The results presented in this list were obtained from 1986 to 1989. Equipment, measurement and treatment of samples are as reported previously (Kanwiszer & Trzeciak 1984: 111). Age calculations are based on a contemporary value equal to 95% of the activity of NBS oxalic acid standard and on the conventional half-life for 14C of 5568 ± 30 years ...
Andrzej Kanwiszer, Paweł Trzeciak
openaire   +3 more sources

UCLA Radiocarbon Dates I [PDF]

open access: yesRadiocarbon, 1962
The measurements reported in this list have been made since the Radiocarbon Dating Laboratory at the Institute of Geophysics, UCLA became operational in August 1961. CO2proportional counting was used for all measurements in an 7 · 5-L counter at 1 atm pressure.
G. J. Fergusson, W. F. Libby
openaire   +3 more sources

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