Results 181 to 190 of about 6,811 (221)
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Annals of Internal Medicine, 1963
Abstract The cosmic ray production of new atoms in m atter is the basis of radiocarbon dating. In this case the atom is carbon of mass fourteen made from the most abundant atom in air—nitrogen of mass fourteen. Radiocarbon— carbon-14, 14C—lasts 8300 years on the average (see note on radioactive decay on p.
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Abstract The cosmic ray production of new atoms in m atter is the basis of radiocarbon dating. In this case the atom is carbon of mass fourteen made from the most abundant atom in air—nitrogen of mass fourteen. Radiocarbon— carbon-14, 14C—lasts 8300 years on the average (see note on radioactive decay on p.
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Nature, 1970
CONFLICTING reports have been published in recent years on the reliability of radiocarbon dating of mortars. Delibrias and Labeyrie1 found accurate dating to be possible, but Stuiver and Smith2 found incorrect age assessments. The observed discrepancies were attributed to the dilution of 14C activity by ancient carbon which may have been a residue of ...
M S, Baxter, A, Walton
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CONFLICTING reports have been published in recent years on the reliability of radiocarbon dating of mortars. Delibrias and Labeyrie1 found accurate dating to be possible, but Stuiver and Smith2 found incorrect age assessments. The observed discrepancies were attributed to the dilution of 14C activity by ancient carbon which may have been a residue of ...
M S, Baxter, A, Walton
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RADIOCARBON DATING | Conventional Method
2007Radiometric analysis of carbon-14 (14C) by liquid scintillation counting (LSC) and gas proportional counting (GPC) is reviewed. Typical sample size requirements are discussed, together with the conversion of sample carbon to an appropriate product for the measurement of the β-particles emitted during 14C decay; in the case of LSC, it is benzene (C6H6 ...
Cook, C.T, van der Plicht, J.
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Science, 1954
These cover the period Sept. 1, 1952 -- Sept. 1, 1953; Mesopotamia and Western Asia-6, United States-23, Central America-1, other areas-2.
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These cover the period Sept. 1, 1952 -- Sept. 1, 1953; Mesopotamia and Western Asia-6, United States-23, Central America-1, other areas-2.
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A field guide to mortar sampling for radiocarbon dating*
Archaeometry, 2021Rubina Raja +2 more
exaly
Radiocarbon dating of small snail shells in a loess-palaeosol sequence at Mangshan, central China
Catena, 2023Huayu Lu, Irka Hajdas, Yao Gu
exaly