14659
Author
Henning, W.; Bell, W.A.; Billquist, P.J.; Glagola, B.G.; Kutschera, W.; Liu, Z.; Lucas, H.F.; Paul, M.; Rehm, K.E.; Yntema, J.L.
Author Affiliation
Argonne Natl. Lab. Argonne. IL. 60439. USA
Title Of Article Chaper
Calcium-41 concentration in terrestrial materials: prospects for dating of Pleistocene samples
Title Of Journal Book
Science (Washington, D. C., 1883-)
Volume
236
Issue
4802
Pages
725-727
ISSN
0036-8075
Language Of Text
English
Literature Type
Serial
Literature Level
Analytic
Abstract
Calcium-41 has been suggested as a new tool for radiometric dating in the range of 10<sup>5</sup>-10<sup>6</sup> years. The concentration of cosmogenic calcium-41 in natural samples of terrestrial origin has now been determined by high-sensitivity accelerator mass spectrometry after pre-enrichment in calcium-41 with an isotope separator. Ratios of calcium-41-to-total calcium of 0.3-2 X 10<sup>-14</sup> were measured for samples of contemporary bovine bone, and from limestone deposits. Some prospects for the use of calcium-41 for dating Middle and Late Pleistocene bone and for other geophysical applications are discussed. -- AATA
Keywords
Calcium 41 dating;Pleistocene;Limestone AATA
pub_id
14659