36Cl studies at the ETH/SIN-AMS facility

• Published in: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• Main Authors: Suter, M., Beer, J., Bonani, G., Hofmann, H.J., Michel, D., Oeschger, H., Synal, H.A., Wölfli, W.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 1987
• Subjects: 530 Physics; Greenland; Dye 3; Dye-3
• Online Access: https://boris.unibe.ch/158478/

36Cl has been measured in polar ice from Dye 3 (65° 11 N, 43° 50 W) and Camp Century (77° 11 N, 82° 08W) in Greenland. In an exploratory study 4 series consisting of about 20 samples each have been selected covering approximately the following time periods: 12000-10000 BP (transition Wisconsin-Holocene), 1530–1730 a.d. (Maunder minimum), 1942–1977 a.d. (nuclear bomb pulse) and 1978 (seasonal variations). The results are compared with 10Be data of the same cores which were measured previously. The variations of the ratio 10Be36Cl are generally larger than expected from the experimental errors indicating that this ratio is not suitable for dating of old ice.