An in situ gas extraction system for radiocarbon dating glacier ice
By: by H. Oeschger, C.C. Langway, Jr. and B. Alder
Contributors: Cold Regions Research and Engineering Laboratory (U.S.); Langway, Chester C., 1929-; Alder, B.; Langway, Chester C., 1929- author; Alder, Berni J., 1925- author
Series: Research report -- 236; Research report (Cold Regions Research and Engineering Laboratory (U.S.)) -- 236
Publisher: U.S. Army Materiel Command, Cold Regions Research & Engineering Laboratory
Published: 1967
Place of publication: Hanover, N.H
Language: eng
Subjects: Radioactive dating; Gas extraction; Glaciers; Radiocarbon dating
Description: In March 1966 at the Tuto ice tunnel, Greenland, a team from USA CRREL and the University of Bern tested a new down-borehole device which would allow gas to be extracted from within shallow or deep boreholes. The tunnel ice was unfractured and its temperature was constant at -10C. A location where, in 1964, C-14 age dates had been obtained was used as a check point for the down-borehole tests. Comparative samples show good agreement and indicate a mean value of 5120 years B.P. for the age of ice at this location. The simplicity of the down-borehole gas extraction system enables application of the carbon dating method to any natural, undisturbed glacier ice mass which can be sampled by boring. The gas extraction apparatus and field experiments are described. (Author).
Notes: "October 1967."

"DA task 1VO14501B52A02."

Includes bibliographical references (p. 4).