Brooks, S.J, Davies, K.L 
ORCID: 0000-0002-1748-9442, Mather, K.A, Matthews, I.P and Lowe, J.J
(2016)
'Chironomid-inferred summer temperatures for the Last Glacial–Interglacial Transition from a lake sediment sequence in Muir Park Reservoir, west-central Scotland.'
Journal of Quaternary Science, 31 (3).
pp. 214-224.
Abstract
Lake sediments spanning the Last Glacial–Interglacial Transition (LGIT: ca. 14.7 to 8 ka BP) from Muir Park Reservoir (MPR) in west-central Scotland were analysed for chironomids. The site lies just outside the southern limit of a former glacier that advanced into the Loch Lomond Basin during the Loch Lomond (Younger Dryas) Stadial. Chironomid-inferred mean July temperatures were derived using a modern Norwegian calibration dataset. Three tephra layers constrain the sequence chronologically. Inferred temperatures decline from a high value early in the Interstadial, punctuated by two cold oscillations, probably equivalent to GI-1d and GI-1b in the Greenland ice-core record, and a warm oscillation (equivalent to GI-1a) immediately before the severe cooling at the start of the Loch Lomond Stadial (GS-1), when summer temperatures fell by about 5 °C below the Interstadial average. Summer temperatures fell by about 3 °C below the Interstadial average during GI-1d, which is less severe than inferred from other chironomid records from eastern Scotland, and may reflect the influence of an oceanic–continental gradient. Cooling during GI-1b was particularly strong at MPR when minimum temperatures were about the same as those reached during GI-1d, unlike other sites investigated where GI-1d is usually between 1 and 2 °C cooler than GI-1b.
| Item Type: | Article |
|---|---|
| Keywords: | calibrated temperature reconstructions, chironomid assemblage data, cryptotephra layers, Loch Lomond Stadial, Younger Dryas |
| Divisions: | School of Sciences |
| Date Deposited: | 03 Apr 2024 15:25 |
| Last Modified: | 05 Jun 2024 05:30 |
| ISSN: | 0267-8179 |
| URN: | https://researchspace.bathspa.ac.uk/id/eprint/16199 |
 |
Request a change to this item or report an issue |
 |
Update item (repository staff only) |
Tools
Tools
