NDLI: An ultra-clean firn core from the Devon Island Ice Cap, Nunavut, Canada, retrieved using a titanium drill specially designed for trace element studies

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Allan McCulloch Ure1924–2005

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An ultra-clean firn core from the Devon Island Ice Cap, Nunavut, Canada, retrieved using a titanium drill specially designed for trace element studies

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Journal of Environmental Monitoring Vol - 8 Issue - 2

Journal of Environmental Monitoring Vol -7

Journal of Environmental Monitoring Vol -6

Journal of Environmental Monitoring Vol -5

Journal of Environmental Monitoring Vol -4

Journal of Environmental Monitoring Vol -3

Journal of Environmental Monitoring Vol -2

An ultra-clean firn core from the Devon Island Ice Cap, Nunavut, Canada, retrieved using a titanium drill specially designed for trace element studies

Content Provider	Royal Society of Chemistry (RSC)
Author	Krachler, M. Shotyk, W. Blake, E. Lam, J. Hall, G. Vaive, J. Fisher, D. Zheng, J. Lawson, G. Zdanowicz, C.
Copyright Year	2006
Abstract	An electromechanical drill with titanium barrels was used to recover a 63.7 m long firn core from Devon Island Ice Cap, Nunavut, Canada, representing 155 years of precipitation. The core was processed and analysed at the Geological Survey of Canada by following strict clean procedures for measurements of Pb and Cd at concentrations at or below the pg g−1 level. This paper describes the effectiveness of the titanium drill with respect to contamination during ice core retrieval and evaluates sample-processing procedures in laboratories. The results demonstrate that: (1) ice cores retrieved with this titanium drill are of excellent quality with metal contamination one to four orders of magnitude less than those retrieved with conventional drills; (2) the core cleaning and sampling protocols used were effective, contamination-free, and adequate for analysis of the metals (Pb and Cd) at low pg g−1 levels; and (3) results from 489 firn core samples analysed in this study are comparable with published data from other sites in the Arctic, Greenland and the Antarctic.
Starting Page	406
Ending Page	413
Page Count	8
File Format	HTM / HTML PDF
ISSN	14640325
Volume Number	8
Issue Number	3
Journal	Journal of Environmental Monitoring
DOI	10.1039/b515886a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	Devon Island Ice Cap Nunavut Canada Arctic Greenland Antarctic Titanium Firn Devon Island Lead Ice core
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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