Very little in situ produced radiocarbon retained in accumulating Antarctic ice

Authors
van der Kemp, WJM Alderliesten, C van der Borg, K Holmlund, P de Jong, AFM Karlof, L Lamers, RAN Oerlemans, J Thomassen, M van de Wal, RSW
Citation
Wjm. Van Der Kemp et al., Very little in situ produced radiocarbon retained in accumulating Antarctic ice, NUCL INST B, 172, 2000, pp. 632-636
Citations number
13
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN journal
0168583X → ACNP
Volume
172
Year of publication
2000
Pages
632 - 636
Database
ISI
SICI code
0168-583X(200010)172:<632:VLISPR>2.0.ZU;2-Y
Abstract
Ice samples from Dronning Maud Land, Antarctica, were analyzed for (CO2)-C- 14 and (CO)-C-14 by accelerator mass spectrometry. Only a small amount (sim ilar to2%) of in situ produced radiocarbon was detected. The calibrated rad iocarbon ages, corrected for in situ produced C-14, are in fair agreement w ith age estimates obtained from stratigraphical methods added to a gas incl usion model. The ages of the entrapped air range from recent to ca. 1200 AD . (C) 2000 Elsevier Science B.V. All rights reserved.