Results 21 to 30 of about 6,811 (221)
UCLA Radiocarbon Dates I [PDF]
Radiocarbon, 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
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Copenhagen Radiocarbon Dates VI [PDF]
Radiocarbon, 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.
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Groningen Radiocarbon Dates IV [PDF]
Radiocarbon, 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
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Scientific Reports, 2021 Plants have difficulty absorbing phosphorus from volcanic ash soils owing to the adsorption of phosphorus by aluminum and iron in the soils. Thus, on volcanic ash soils, the phosphorus source for natural vegetation is expected to be organic matter ...
Sae Katayama +2 more
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Bern Radiocarbon Dates V [PDF]
Radiocarbon, 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
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RADIOCARBON DATING: PAST, PRESENT-DAY AND FUTURE - DEVELOPMENT OF I.P. GERASIMOV IDEAS
Бюллетень Почвенного института им. В.В. Докучаева, 2015 The ideas of I.P. Gerasimov on the radiocarbon soil age are outlined; the notions of absolute and relative soil age introduced by him are defined. Current trends in organic matter dating are discussed.
O. A. Chichagova, E. P. Zazovskaya
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Radiocarbon Dating of Bone [PDF]
Nature, 1967 SELLSTEDT et al.1 have described a method for the removal of inorganic carbonates from bone so that the residual collagen can be used as a source material for radiocarbon dating, and they conclude that this “offers the archaeologist an elegant and versatile tool which is likely to find wide application”.
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Radiocarbon Dating of Holocene Archaeological Sites in the Far Northeast of Europe
Documenta Praehistorica, 2021 The paper is devoted to the critical analysis of the radiocarbon dating results of Mesolithic, Neolithic and Chalcolithic complexes of the northeastern part of the East European Plain (Republic of Komi, Arkhangelsk and Vologda Regions and the Nenets ...
Victor N. Karmanov +1 more
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Florence Radiocarbon Dates I [PDF]
Radiocarbon, 1973 The Florence Radiocarbon Dating Laboratory was built in 1970 under the direction of Consiglio Nazionale delle Ricerche at the Istituto di Antropologia, Università di Firenze.
C. M. Azzi, L. Bigliocca, E. Piovan
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Tallinn Radiocarbon Dates I [PDF]
Radiocarbon, 1973 Preparations for determining absolute age by the radiocarbon method were started at the Institute of Geology, Academy of Sciences of the Estonian SSR in 1971. Dating of samples has been carried out since 1972.
J M Punning, T Kakum, R Rajamäe
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