Washington State University Natural Radiocarbon Measurements II

1 January 1976

journal article
research article
Published by Cambridge University Press (CUP) in Radiocarbon

Vol. 18 (1) , 140-149
https://doi.org/10.1017/s0033822200002435

Abstract

This list of radiocarbon age measurements is for the period 1972–1974. Most of the samples are of archaeologic interest. The pretreatments of samples used are basically those described by Ralph and Michael (1971). All samples were converted to methane using the method developed by Fairhall, Schell, and Takashima (1961) and counted in .5L counting tubes at 2 to 4atm of pressure. The WSU Radiocarbon Laboratory has been relocated to the basement of Dana Hall (three stories) and additional shielding has been added. The backgrounds of the counting tubes are .90 counts/min and have an atmospheric pressure dependence of –.035 counts/min/cm Hg.

Keywords

This publication has 3 references indexed in Scilit:

Mineralogy, Correlation, and Grain-Size Distributions of Mazama Tephra and Other Postglacial Pyroclastic Layers, Pacific Northwest
GSA Bulletin, 1973
Apparatus for Methane Synthesis for Radiocarbon Dating
Review of Scientific Instruments, 1961
THE NATURAL C ¹⁴ CONTENTS OF MATERIALS FROM HARD-WATER LAKES
Proceedings of the National Academy of Sciences, 1954