University of Texas at Austin Radiocarbon Dates VII

Autor:	S. Valastro, E. Mott Davis
Rok vydání:	1970
Předmět:	010506 paleontology Archeology 060102 archaeology General Earth and Planetary Sciences 0601 history and archaeology 06 humanities and the arts 01 natural sciences 0105 earth and related environmental sciences
Zdroj:	Radiocarbon. 12:249-280
ISSN:	1945-5755 0033-8222
Popis:	This list reports C14measurements made in dating projects completed in the year ending December, 1968, and some measurements for projects still in progress. Age calculations are based on C14half-life of 5568 yr and a modern standard of 95% of NBS oxalic acid. Deviations reported are based on counting statistics of sample, background, and modern, and are ±1σ except that when sample count approaches either modern or background, 2σ limits are reported. The laboratory uses liquid scintillation counting of benzene, with Li2C2and vanadium activated catalyst in preparation, as described in Texas IV (Radiocarbon, 1966, v. 8, p. 453–466) and earlier lists. Chemical yields average 85%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::290e72131b28180a7ed6d049ca69c2ea https://doi.org/10.1017/s0033822200036316 Zobrazit plný text záznamu