Glacier fluctuations in western Scotland

Benn, Douglas I.

doi:10.1016/s1040-6182(96)00018-3

Cited by 49 publications

(39 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This variation in climate shows remarkable compatibility with the Greenland ice-core data, Previously, this question has been largely addressed from a land-based perspective (Gray and Lowe, 1977;Benn, 1997;Clapperton, 1997, Benn andLukas, 2006;Golledge, 2008;and references therein). However, it is clear that any attempt to understand the deglacial record of the British Ice Sheet must take both the marine and terrestrial records of change into consideration.…”

Section: Discussionmentioning

confidence: 86%

Lateglacial ice-cap dynamics in NW Scotland: evidence from the fjords of the Summer Isles region

Stoker

Bradwell

Howe

et al. 2009

Quaternary Science Reviews

View full text Add to dashboard Cite

The seaboard of western Scotland is a classic fjord landscape formed by glaciation over at least the last 0.5 Ma. We examine the glacial geology preserved in the fjords (or sea lochs) of the Summer Isles region of NW Scotland using high-resolution seismic data, multibeam swath bathymetry, sea-bed sediment cores, digital terrain models, aerial photographs, and field investigations. Detailed analyses include seismic facies and lithofacies interpretations; sedimentological and palaeo-environmental analyses; and radiocarbon dating of selected microfauna. Our results indicate that the Pleistocene sediments of the Summer Isles region, on-and offshore, can be subdivided into several lithostratigraphic formations on the basis of seismic character, geomorphology and sedimentology. These are: subglacial tills; ice-distal and glacimarine facies; ice-proximal and ice-contact facies; moraine assemblages; and Holocene basin fill. The submarine landscape is also notable for its large-scale massmovement events -the result of glaciodynamic, paraglacial or seismotectonic processes.Radiocarbon dating of marine shells indicate that deglaciation of this part of NW Scotland was ongoing between 14-13 ka BP -during the Lateglacial Interstadial (Greenland

show abstract

Section: Discussionmentioning

confidence: 86%

Lateglacial ice-cap dynamics in NW Scotland: evidence from the fjords of the Summer Isles region

Stoker

Bradwell

Howe

et al. 2009

Quaternary Science Reviews

View full text Add to dashboard Cite

show abstract

“…To deposit a glacial diamicton at this location it is necessary to invoke a preceding period of glacial deposition. Benn (1997) provides evidence for the retention of ice lobes in the sheltered sounds between Skye, Scalpay and Raasay during the deglaciation of the earlier Dimlington Stadial ice dome, so providing a potential source for these diamictons. This interpretation of an earlier age of deposition for LASF2 suggests that facies LASF1 may represent the reworking of LASF2 with only a limited contribution from material deposited directly beneath, or in front of, the Loch Lomond Stadial glacier.…”

Section: Stratigraphic Interpretationmentioning

confidence: 89%

“…Deglacial Phase I is inferred to represent decreased snow accumulation resulting from precipitation decline, whereas Deglacial Phase II is inferred to represent a response to the rapid climatic amelioration that occurred at the end of the stade. The simplicity of such a direct relationship between climatic change and glacier response during this period has been questioned by Bennett and Boulton (1993) and Bennett (1994), the conflicting theories being discussed in Benn (1997).…”

Section: Figurementioning

confidence: 99%

“…This would support Ballantyne's (1989) assertion that lowering of glacier surface gradients by deformation of sediment at the glacier bed can occur in outlet glaciers as well as laterally unconstrained ice sheets and ice caps. It is acknowledged, however, that without accurate dating these outer ridges could actually pre-date the Loch Lomond Stadial and so in fact represent earlier retreat/readvance phases during deglaciation of the Last Glacial Maximum ice sheet (see discussion of terrestrial record for eastern Skye in Benn (1997)). …”

Section: Stratigraphic Interpretationmentioning

confidence: 99%

See 1 more Smart Citation

A high-resolution seismic stratigraphy from a Scottish sea loch and its implications for Loch Lomond Stadial deglaciation

Dix

Duck

2000

J. Quaternary Sci.

View full text Add to dashboard Cite

“…The glacial-geomorphology of NW Scotland has been the subject of much research (Bennett and Boulton, 1993a;Wilson and Evans, 2000;Clark et al, 2004;Bradwell, 2005;Lukas, 2005;Benn and Lukas, 2006;Lukas and Benn, 2006;Lukas and Lukas, 2006a;b) due to the sensitivity of the region to climatic fluctuations caused by changes in the configuration of the Gulf Stream, making it the ideal place to study and constrain atmosphere-cryosphere interactions (Ruddiman et al, 1980;Benn, 1997b). Field mapping provides numerical constraints for ice sheet models, which play a role in the prediction of future climate change (Jones, 1998;Golledge and Hubbard, 2005;Golledge et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Glacial geomorphological mapping of Coire Mhic Fhearchair, NW Scotland: The contribution of a high-resolution ground based LiDAR survey

McCormack¹,

Irving²,

Brocklehurst³

et al. 2008

Journal of Maps

View full text Add to dashboard Cite

Terrestrial Light Detection and Ranging (tLiDAR) surveys are valuable supplements to existing geomorphological mapping techniques, providing information which is of considerable interest to palaeoclimatologists and glaciologists. Fieldwork observations, and the interpretation of aerial photographs and digital elevation models, have been augmented by the study of 3D digital models produced from tLiDAR data, and have led to the production of a detailed geomorphological map at a scale of 1:10,000. A 2 km 2 study was carried out in Coire Mhic Fhearchair (NW Scotland), a cirque landform which was covered by an ice-sheet at the Last Glacial Maximum, and experienced localised ice flow during subsequent deglaciation and readvances. The combined map includes glacial (moraines, striae, and depositional lineations) and paraglacial features (debris fans) which have been observed using some or all of the above methods. In addition to this, tLiDAR has been used in conjunction with colour photography to provide a 'virtual reality' observational tool at resolutions of up to 50 mm, with great potential for the detailed study of glacial geomorphology on the sub-km scale.

show abstract

Glacier fluctuations in western Scotland

Cited by 49 publications

References 78 publications

Lateglacial ice-cap dynamics in NW Scotland: evidence from the fjords of the Summer Isles region

Lateglacial ice-cap dynamics in NW Scotland: evidence from the fjords of the Summer Isles region

A high-resolution seismic stratigraphy from a Scottish sea loch and its implications for Loch Lomond Stadial deglaciation

Glacial geomorphological mapping of Coire Mhic Fhearchair, NW Scotland: The contribution of a high-resolution ground based LiDAR survey

Contact Info

Product

Resources

About