Deglaciation of a marine-based ice sheet: Late Weichselian palaeo-ice dynamics and retreat in the southern Barents Sea reconstructed from onshore and offshore glacial geomorphology

Winsborrow, Monica; Andreassen, Karin; Corner, Geoffrey D.; Laberg, Jan Sverre

doi:10.1016/j.quascirev.2009.10.001

Cited by 173 publications

(211 citation statements)

References 73 publications

Supporting

Mentioning

196

Contrasting

Unclassified

Order By: Relevance

“…15,000 cal yr BP (Romundset et al, 2011) and ca. 16,000 cal yr BP (Winsborrow et al, 2010), respectively. Sollid et al (1973) also mapped the marine limit.…”

Section: Sites and Samplingmentioning

confidence: 98%

Spatio-temporal patterns in Lateglacial and Holocene vegetation and climate of Finnmark, northernmost Europe

Huntley

Long

Allen

2013

Quaternary Science Reviews

View full text Add to dashboard Cite

. (2013) 'Spatio-temporal patterns in late-glacial and Holocene vegetation and climate of Finnmark, northernmost Europe.', Quaternary science reviews., 70 . pp. 158-175. Further information on publisher's website:http://dx.doi.org/10. 1016/j.quascirev.2013.03.006 Publisher's copyright statement: NOTICE: this is the author's version of a work that was accepted for publication in Quaternary Science Reviews. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be re ected in this document. Changes may have been made to this work since it was submitted for publication. A de nitive version was subsequently published in Quaternary Science Reviews, 70, 2013Reviews, 70, , 10.1016Reviews, 70, /j.quascirev.2013 Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. Further work on precisely-dated marine sediment cores will be necessary to understand the factors leading to the periodic and longer-term variations in strength of the North Cape Current.

show abstract

“…15,000 cal yr BP (Romundset et al, 2011) and ca. 16,000 cal yr BP (Winsborrow et al, 2010), respectively. Sollid et al (1973) also mapped the marine limit.…”

Section: Sites and Samplingmentioning

confidence: 98%

Spatio-temporal patterns in Lateglacial and Holocene vegetation and climate of Finnmark, northernmost Europe

Huntley

Long

Allen

2013

Quaternary Science Reviews

View full text Add to dashboard Cite

show abstract

“…The deglaciation was coeval with rising sea level (Clark et al 2009) and was greatly influenced by the influx of Atlantic water masses (e.g., Chistyakova et al 2010;Junttila et al 2010). It was, however, punctuated by periods of ice margin stability and readvances, as evidenced by a series of ice-marginal deposits (Andreassen et al 2008;Ottesen et al 2008;Winsborrow et al 2010). The rates of retreat were particularly high in Bjørnøyrenna (Bear Island Trough), the largest trough in the western Barents Sea (Fig.…”

Section: Introductionmentioning

confidence: 99%

“…The rates of retreat were particularly high in Bjørnøyrenna (Bear Island Trough), the largest trough in the western Barents Sea (Fig. 1), where Winsborrow et al (2010) (Winsborrow et al 2010). This made ice loss by calving no longer possible, and the rate of retreat slowed significantly (Winsborrow et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Sedimentary environments in the south-western Barents Sea during the last deglaciation and the Holocene: a case study outside the Ingøydjupet trough

Pau

Hammer

2016

Polar Research

View full text Add to dashboard Cite

“…Some of the oldest moraine sequences on Earth date back over 1 Ma (Singer et al, 2004;Kaplan et al, 2009) (Fig. 2C); and a global population of offshore examples is significant, and expanding (e.g., Bradwell et al, 2008;Spagnolo and Clark, 2009;Winsborrow et al, 2010). Sedimentological and morphometric analyses of moraines provide information about former glacier flow dynamics, thermal regime, and debris content (amongst other factors) (see Boulton, 1986;Lukas, 2005;Evans, 2009), but moraines are most commonly used simply as indicators of former ice margin positions (e.g., Svendsen et al, 2004;Fredin et al, 2012).…”

Section: Moraines As Indicators Of Palaeoclimatementioning

confidence: 99%

A review of topographic controls on moraine distribution

2014

View full text Add to dashboard Cite

Ice-marginal moraines are often used to reconstruct the dimensions of former ice masses, which are then used as proxies for palaeoclimate. This approach relies on the assumption that the distribution of moraines in the modern landscape is an accurate reflection of former ice margin positions during climatically controlled periods of ice margin stability. However, the validity of this assumption is open to question, as a number of additional, nonclimatic factors are known to influence moraine distribution. This review considers the role played by topography in this process, with specific focus on moraine formation, preservation, and ease of identification (topoclimatic controls are not considered). Published literature indicates that the importance of topography in regulating moraine distribution varies spatially, temporally, and as a function of the ice mass type responsible for moraine deposition. In particular, in the case of ice sheets and ice caps ( > 1000 km 2 ), one potentially important topographic control on where in a landscape moraines are deposited is erosional feedback, whereby subglacial erosion causes ice masses to become less extensive over successive glacial cycles. For the marine-terminating outlets of such ice masses, fjord geometry also exerts a strong control on where moraines are deposited, promoting their deposition in proximity to valley narrowings, bends, bifurcations, where basins are shallow, and/or in the vicinity of topographic bumps. Moraines formed at the margins of ice sheets and ice caps are likely to be large and readily identifiable in the modern landscape. In the case of icefields and valley glaciers (10-1000 km 2 ), erosional feedback may well play some role in regulating where moraines are deposited, but other factors, including variations in accumulation area topography and the propensity for moraines to form at topographic pinning points, are also likely to be important. This is particularly relevant where land-terminating glaciers extend into piedmont zones (unconfined plains, adjacent to mountain ranges) where large and readily identifiable moraines can be deposited. In the case of cirque glaciers (< 10 km 2 ), erosional feedback is less important, but factors such as topographic controls on the accumulation of redistributed snow and ice and the availability of surface debris, regulate glacier dimensions and thereby determine where moraines are deposited. In such cases, moraines are likely to be small and particularly susceptible to post-depositional modification, sometimes making them difficult to identify in the modern landscape. Based on this review, we suggest that, despite often being difficult to identify, quantify, and mitigate, topographic controls on moraine distribution should be explicitly considered when reconstructing the dimensions of palaeoglaciers and that moraines should be judiciously chosen before being used as indirect proxies for palaeoclimate (i.e., palaeoclimatic inferences should only be drawn from moraines when topographic controls on mora...

show abstract

Deglaciation of a marine-based ice sheet: Late Weichselian palaeo-ice dynamics and retreat in the southern Barents Sea reconstructed from onshore and offshore glacial geomorphology

Cited by 173 publications

References 73 publications

Spatio-temporal patterns in Lateglacial and Holocene vegetation and climate of Finnmark, northernmost Europe

Spatio-temporal patterns in Lateglacial and Holocene vegetation and climate of Finnmark, northernmost Europe

Sedimentary environments in the south-western Barents Sea during the last deglaciation and the Holocene: a case study outside the Ingøydjupet trough

A review of topographic controls on moraine distribution

Contact Info

Product

Resources

About