Change search
ReferencesLink to record
Permanent link

Direct link
Cirque infills in the Khibiny mountains, Kola Peninsula, Russia - palaeoglaciological interpretations and modern analogues in East Antarctica
Stockholm University, Faculty of Science, Department of Physical Geography and Quaternary Geology.
2008 (Swedish)In: JOURNAL OF QUATERNARY SCIENCE, ISSN 0267-8179, Vol. 23, no 2, 165-174 p.Article in journal (Refereed) Published
Abstract [sv]

We report here on cirque infills mapped in the Khibiny Mountains, Kola Peninsula, Russia. Cirque infills are morainic deposits located near the headwalls of valleys and cirques. Their location and shape, often with concave margins towards the valley side, indicate that they were deposited by ice flowing up-valley, into the mountains, rather than by local glaciers. We suggest that they formed during the last deglaciation, when Khibiny was a nunatak and Fennoscandian ice sheet lobes extended into valleys and cirques of the massif. The formation of cirque infills is probably more related to ice sheet dynamic factors, occurring when the ice margin retreated from the cirques, than to climate-driven interruption in the ice-marginal retreat. Glacial conditions similar to those prevalent when the Khibiny cirque infills were formed, occur today in Antarctica where the ice sheets engulf nunatak ranges. In Heimefrontfjella, Antarctica, the formation of supraglacial moraines at the head of cirques are linked to blue-ice conditions, indicating locally low accumulation rates, a dry continental climate and sublimation dominated ablation. We suggest that these Antarctic moraines are modern analogues of cirque infills on the Kola Peninsula, and possibly, that the cirque infills may be used as palaeoenvironmental indicators.

Place, publisher, year, edition, pages
2008. Vol. 23, no 2, 165-174 p.
URN: urn:nbn:se:su:diva-18466DOI: doi:10.1002/jqs.1130ISI: 000253782100006OAI: diva2:184989
Available from: 2009-01-26 Created: 2009-01-26 Last updated: 2011-01-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Hättestrand, Clas
By organisation
Department of Physical Geography and Quaternary Geology

Search outside of DiVA

GoogleGoogle Scholar
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: 17 hits
ReferencesLink to record
Permanent link

Direct link