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Radiocarbon Dating with the University of Washington Accelerator Mass Spectrometry System

Published online by Cambridge University Press:  18 July 2016

Pieter M Grootes ,
Minze Stuiver ,
George W Farwell ,
Donald D Leach  and
Fred H Schmidt
Pieter M Grootes
Affiliation:
Quaternary Isotope Laboratory and Department of Geological Sciences
Minze Stuiver
Affiliation:
Quaternary Isotope Laboratory and Department of Geological Sciences
George W Farwell
Affiliation:
Quaternary Isotope Laboratory and Department of Geological Sciences
Donald D Leach
Affiliation:
Quaternary Isotope Laboratory and Department of Geological Sciences
Fred H Schmidt
Affiliation:
Quaternary Isotope Laboratory and Department of Geological Sciences
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Abstract

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The University of Washington FN tandem accelerator mass spectrometry (AMS) system has been used in a series of 14C studies. 1) The 14C concentrations in annual growth rings for 1962, 1963, and 1964 of a Sitka spruce, each divided into ten sequential segments, were measured; a full and rapid response of tree-ring cellulose to atmospheric changes in 14CO2 is indicated, with a delay, if any, of not more than three weeks. 2) The C concentrations in two chemical fractions of dissolved organic carbon and in two fractions (by size) of particulate organic carbon were measured for Amazon River samples from several locations. All contain bomb carbon, but the amounts differ significantly. 3) Algae samples from lakes in the dry valleys of Antarctica were dated in order to assist in the reconstruction of the climatic history of Antarctica. 4) Background studies indicate that the contribution of the AMS system itself to the observed 14C concentrations is equivalent to an age of ca 60,000 14C yr BP; for a prepared sample of 5mg of carbon the background corresponds to ca 50,000 years.

Type
I. AMS Techniques
Information
Radiocarbon , Volume 28 , Issue 2A , 1986 , pp. 237 - 245
Copyright
Copyright © The American Journal of Science 

References

Ertel, J R, Hedges, J I, Devol, A H, Richey, J E, and Ribeiro, N, in press Dissolved humic substances of the Amazon River system: Limnol Oceanog. Google Scholar
Farwell, G W, Grootes, P M, Leach, D D, and Schmidt, F H, 1984, The accelerator mass spectrometry facility at the University of Washington: current status and an application to the 14C profile of a tree ring: Nuclear Instruments & Methods, v 233[B5], no. 2, p 144–149.CrossRefGoogle Scholar
Farwell, G W, Grootes, P M, Leach, D D, Schmidt, F H, and Stuiver, M (ms) Rapid response of tree cellulose radiocarbon content to changes in atmospheric 14CO2 concentration.Google Scholar
Griffith, B G, 1968, Phenology, growth and flower and cone production of 154 Douglas fir trees on the University Research Forest as influenced by climate and fertilizer, 1957–1967: Univ British Columbia Forestry Fac, Forestry Bull, v 6, 70 p.Google Scholar
Hedges, J I, Ertel, J R, Quay, P D, Grootes, P M, Richey, J E, Devol, A H, Farwell, G W, Schmidt, F H and Salati, E, in press a, Carbon-14 composition of organic matter in the Amazon River system: Science.Google Scholar
Hedges, J I, Clark, W C, Quay, P D, Richey, J E, Devol, A H and dos Santos, U, in press b, Compositions and fluxes of particulate organic material in the Amazon River: Limnol Oceanog.Google Scholar
Levin, I, Kromer, B, Schoch-Fischer, H, Bruns, M, Münnich, M, Berdau, D, Vogel, J C and Münnich, K O, 1985, 25 years of tropospheric 14C observations in Central Europe: Radiocarbon, v 27, no. 1, p 1–19.CrossRefGoogle Scholar
Likens, G E, Mackenzie, F T, Richey, J E, Sedell, J R and Turekian, K K, 1981, Flux of organic carbon by rivers to the ocean: Washington, DC, U S Dept Energy, NRC-CONF-8009140, 397 p.Google Scholar
Mackenzie, F T, 1981, The global carbon cycle: minor sinks for carbon dioxide, in Flux of organic carbon by rivers to the ocean: Washington, DC, U S Dept of Energy, NRC-CONF-8009140, p 360–384.Google Scholar
Nydal, R and Lövseth, K, 1983, Tracing bomb 14C in the atmosphere 1962–1980: Jour Geophys Research, v 88, p 3621–3642.CrossRefGoogle Scholar
Richey, J E, Meade, R H, Devol, A H, Nordin, C F, Salati, E and dos Santos, U, in press, Water discharge and suspended sediment in the Amazon River: a sampling procedure and distributions: Water Resources Research. Google Scholar
Stuiver, M, Denton, G H, Hughes, T J, and Fastook, J L, 1981, History of the marine ice sheet in West Antarctica during the Last Glaciation: a working hypothesis, in Denton, G H and Hughes, T J, eds, The last great ice sheets: New York, John Wiley & Sons, p 319–436.Google Scholar
Stuiver, M and Polach, H A, 1977, Discussion: Reporting of 14C data: Radiocarbon, v 19, p 355–363.CrossRefGoogle Scholar
Thurman, E M and Malcolm, R L, 1981, Preparative isolation of aquatic humic substances: Environmental Sci Tech, v 15, p 463–466.CrossRefGoogle Scholar
Vogel, J S, Southon, J R, Nelson, D E, and Brown, T A, 1984, Performance of catalytically condensed carbon for use in accelerator mass spectrometry: Nuclear Instruments & Methods, v 233[B5], no. 2, p 289–293.CrossRefGoogle Scholar