uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
The effects of flowline length evolution on chemistry - δ18O profiles from Penny Ice Cap, Baffin Island, Canada
Geological Survey of Canada .
Geological Survey of Canada .
University of New Hampshire.
University of New Hampshire.
Show others and affiliations
2002 (English)In: Annals of Glaciology, ISSN 0260-3055, E-ISSN 1727-5644, Vol. 35, no 1, 150-156 p.Article in journal (Refereed) PublishedText
Abstract [en]

The isotopic and chemical signatures for ice-age and Holocene ice from Summit, Greenland, and Penny Ice Cap, Baffin Island, Canada, are compared. The usual pattern of low δ180, high Ca2+ and high Cl- is presented in the Summit records, but Penny Ice Cap has lower than present Cl- in its ice-age ice. A simple extension of the Hansson model (Hansson, 1994) is developed and used to simulate these signatures. The low ice­ age Cl- from Penny Ice Cap is explained by having the ice-age ice originating many thou­sands of km inland near the centre of the Laurentide ice sheet and much further from the marine sources. Summit's flowlines all start close to the present site. The Penny Ice Cap early-Holocene δ180's had to be corrected to offset the Laurentide meltwater distortion.The analysis suggests that presently the Summit and Penny Ice Cap marine impurity ori­ ginates about 500 km away, and that presently Penny Ice Cap receives a significant amountoflocal continental impurity.

Place, publisher, year, edition, pages
2002. Vol. 35, no 1, 150-156 p.
Keyword [en]
Ice cores, aerosols, Arctic, Canada, Laurentide Ice Sheet, Penny Ice Cap
National Category
Other Earth and Related Environmental Sciences
Research subject
Earth Science with specialization in Physical Geography
URN: urn:nbn:se:uu:diva-300886DOI: 10.3189/172756402781817257ISI: 000182023600026ScopusID: 2-s2.0-0036968396OAI: oai:DiVA.org:uu-300886DiVA: diva2:952790
Available from: 2016-08-15 Created: 2016-08-15 Last updated: 2016-08-29Bibliographically approved

Open Access in DiVA

fulltext(930 kB)8 downloads
File information
File name FULLTEXT01.pdfFile size 930 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Zdanowicz, Christian
In the same journal
Annals of Glaciology
Other Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 8 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 14 hits
ReferencesLink to record
Permanent link

Direct link