New evidence for enhanced cosmogenic isotope production rate in the atmosphere approximate to 37 kaBP from the Guliya ice core

Authors
Wang, NL Yao, TD Qin, DH Thompson, LG Mosley-Thompson, E Cole-Dai, J Davis, ME Lin, PN
Citation
Nl. Wang et al., New evidence for enhanced cosmogenic isotope production rate in the atmosphere approximate to 37 kaBP from the Guliya ice core, CHIN SCI B, 44(17), 1999, pp. 1616-1620
Citations number
20
Categorie Soggetti
Multidisciplinary
Journal title
CHINESE SCIENCE BULLETIN
ISSN journal
10016538 → ACNP
Volume
44
Issue
17
Year of publication
1999
Pages
1616 - 1620
Database
ISI
SICI code
1001-6538(199909)44:17<1616:NEFECI>2.0.ZU;2-H
Abstract
A Cl-36 peak was found in the predicted section of Guliya ice core, from th e Qinghai-Tibetan Plateau, at about 37 kaBP. This cannot be interpreted by means of changes in the accumulation rate, but by the enhanced cosmogenic i sotope production rate in the atmosphere. Compared with the records of Be-1 0 and Cl-36 in the other regions, the peaks of the cosmogenic isotopes are global and can be considered as time marks. An intriguing fact is that the peaks coincided with cold periods.