A new multi‐stage recession model for Proglacial Lake Humber during the retreat of the last British–Irish Ice Sheet

Fairburn, William A.; Bateman, Mark D.

doi:10.1111/bor.12140

Cited by 18 publications

(35 citation statements)

References 43 publications

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“…The evidence from the Ferriby Moraine ridge supports this interpretation with its stacked sediments developed as distal facies of an ice grounding line. The maximum significant elevation reported for Lake Humber is 33 m (Fairburn & Bateman ) although this elevation may have been attained later than the initial ice advance into the gap and moraine ridge formation. With a lake of this depth ice would need only to be 36 m thick to resist floatation (Friend et al .…”

Section: Resultsmentioning

confidence: 99%

“…The findings presented here also provide insights into the relationship of NSL advances and retreats and proglacial lakes. In the Vale of York, Humber Gap and areas to the east, proglacial lakes appear to have been present (although not necessarily continuous or connected) as NSL ice moved on‐shore at around 21.6 ka through to sometime after c. 15.5 ka (Fairburn & Bateman ). Bateman et al .…”

Section: Discussionmentioning

confidence: 99%

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The timing and consequences of the blockage of the Humber Gap by the last British−Irish Ice Sheet

Bateman

Evans

Roberts

et al. 2017

Boreas

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The eastern England terrestrial glacial sequences are critical to the spatial and temporal reconstruction of the last British−Irish Ice sheet (BIIS). Understanding glacial behaviour in the area of the Humber Gap is key as its blockage by ice created extensive proglacial lakes. This paper maps the glacial geomorphology of the Humber Gap region to establish for the first time the extent and thickness of the North Sea Lobe (NSL) of the BIIS. Findings establish the westerly maximal limit of the NSL. Ten new luminescence ages from across the region show the initial Skipsea Till advance to the maximal limits occurred regionally at c. 21.6 ka (Stage 1) and retreated off‐shore c. 18 ka (Stage 2). Punctuated retreat is evident in the south of the region whilst to the immediate north retreat was initially rapid before a series of near synchronous ice advances (including the Withernsea Till advance) occurred at c. 16.8 ka (Stage 3). Full withdrawal of BIIS ice occurred prior to c. 15 ka (Stage 4). Geomorphic mapping and stratigraphy confirms the existence of a proto Lake Humber prior to Stage 1, which persisted to Stage 3 expanding eastward as the NSL ice retreated. It appears that proglacial lakes formed wherever the NSL encountered low topography and reverse gradients during both phases of both advance and retreat. These lakes may in part help explain the dynamism of parts of the NSL, as they initiated ice draw down and associated streaming/surging. The above record of ice‐dammed lakes provides an analogue for now off‐shore parts of the BIIS where it advanced as a number of asynchronous lowland lobes.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The timing and consequences of the blockage of the Humber Gap by the last British−Irish Ice Sheet

Bateman

Evans

Roberts

et al. 2017

Boreas

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“…Palaeogeographical reconstructions of glacial events and the development of Glacial Lake Pickering during the last glaciation, incorporating the regional reconstructions of Fairburn and Bateman () and Bateman et al . (): (a) the alternative potential scenarios for the Dimlington Stadial maximum, bracketed at >17.6 ka to <20.5 ka – drainage of the 70‐m lake level is assumed to be sub‐ice‐marginal through Hunmanby Dale, which would require the North Sea lobe to be located as far east at least as the Wykeham Stage limit; (b) the 45‐m OD lake level at ∼17.6 ka at the Cayton–Speeton Stage; (c) the 30‐m OD lake level at ∼17.3 ka, assumed to be controlled by the 29–35‐m OD spillway between Flotmanby and Filey and hence dating the recession of the North Sea lobe from the Flamborough Moraine.…”

Section: Discussionmentioning

confidence: 99%

“…The duration of the 45‐m lake, and therefore the Flamborough Moraine which impounded it, remains undated but with 17.6 ± 1.0 ka being the best minimum age at present. Further adjustment to the 30‐m lake level at ∼17.3 ka is coincident with the time when a regional‐scale BIIS North Sea Lobe is thought to have retreated a short distance eastward (Bateman et al ., ) and would have held Lakes Pickering and Humber at similar levels while the Vale of York Lobe retreated northward (Fairburn and Bateman, ). With the shrinkage and demise of Lake Humber, flow through the Kirkham Gap resumed lowering Glacial Lake Pickering further (down to the 20‐m OD level of the gap; Fig.…”

Section: Discussionmentioning

confidence: 99%

Glacial Lake Pickering: stratigraphy and chronology of a proglacial lake dammed by the North Sea Lobe of the British–Irish Ice Sheet

Evans

Bateman

Roberts

et al. 2016

J Quaternary Science

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We report the first chronology, using four new optically stimulated luminescence dates, on the sedimentary record of Glacial Lake Pickering, dammed by the North Sea Lobe of the British-Irish Ice Sheet during the Dimlington Stadial (24-11 ka cal BP). Dates range from 17.6 AE 1.0 to 15.8AE 0.9 ka for the sedimentation of the Sherburn Sands at East Heslerton, which were formed by multiple coalescing alluvial fans prograding into the falling water levels of the lake and fed by progressively larger volumes of debris from the Wolds. Fan formation ceased $15.8 ka, at a time when permafrost was degrading and nival-fed streams were no longer capable of supplying sediment to the fans. A further age of 10.1 AE 0.7 ka dates the reworking of coversand into the early part of the Holocene, immediately post-dating Younger Dryas periglacial structures. A 45-m lake level dates to $17.6 ka, when the North Sea Lobe was already in retreat, having moved eastward of the Wykeham Moraine; it stood further east at the Flamborough Moraine by $17.3 ka. The highest (70 m) lake level and the occupation of the Wykeham Moraine date to an earlier phase of the North Sea Lobe occupation of the Vale of Pickering. #

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“…(, ), Everest & Kubik (), Everest et al . (), Farrington (), Farrington & Mitchell (), Fairburn & Bateman (), Finch (), Finch & Walsh (), Finlayson (), Finlayson and Bradwell (, ), Finlayson et al . (, , , , ), Fishwick (), Flinn (, b, ), Flint (, ), Floyd (), Forsythe et al .…”

Section: References For Britice Glacial Map V2unclassified

BRITICE Glacial Map, version 2: a map and GIS database of glacial landforms of the last British–Irish Ice Sheet

Clark

Ely

Greenwood

et al. 2017

Boreas

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During the last glaciation, most of the British Isles and the surrounding continental shelf were covered by the BritishIrish Ice Sheet (BIIS). An earlier compilation from the existing literature (BRITICE version 1) assembled the relevant glacial geomorphological evidence into a freely available GIS geodatabase and map (Clark et al. 2004: Boreas 33, 359). New high-resolution digital elevation models, of the land and seabed, have become available casting the glacial landform record of the British Isles in a new light and highlighting the shortcomings of the V.1 BRITICE compilation. Here we present awholesale revision of the evidence, onshore and offshore, to produce BRITICE version 2, which now also includes Ireland. All published geomorphological evidence pertinent to the behaviour of the ice sheet is included, up to the census date of December 2015. The revised GIS database contains over 170 000 geospatially referenced and attributed elements -an eightfold increase in information from the previous version. The compiled data include: drumlins, ribbed moraine, crag-and-tails, mega-scale glacial lineations, glacially streamlined bedrock (grooves, roches moutonn ees, whalebacks), glacial erratics, eskers, meltwater channels (subglacial, lateral, proglacial and tunnel valleys), moraines, trimlines, cirques, trough-mouth fans and evidence defining ice-dammed lakes. The increased volume of features necessitates different map/database products with varying levels of data generalization, namely: (i) an unfiltered GIS database containing all mapping; (ii) a filtered GIS database, resolving data conflicts and with edits to improve geo-locational accuracy (available as GIS data and PDF maps); and (iii) a cartographically generalized map to provide an overviewof the distribution and types of features at the ice-sheet scale that can be printed at A0 paper size at a 1:1 250 000 scale. All GIS data, the maps (as PDFs) and a bibliography of all published sources are available for download from: https://www.sheffield.ac.uk/geography/staff/clark_chris/britice. Palaeo-ice sheets provide the opportunity to study icesheet behaviour over a longer time period (10 000s of years) than can be achieved by studying current ice sheets (10s of years) thereby permitting exploration of the long-term role of ice sheets in the climate system. The extent, geometry and dynamics of palaeo-ice sheets can be reconstructed from the geomorphological and geological evidence they leave behind, with the mapping, logging and description of such evidence being the vital ingredients. For many palaeo-ice sheets, such as the British-Irish Ice Sheet (BIIS), the accumulation of evidence at individual field-sites has been ongoing for well over 100 years (e.g. Geikie 1894) yielding thousands of publications. Using such work to build local to regional reconstructions of ice dynamics is feasible, but at the ice-sheet scale the volume of information becomes unmanageable. Often the information is spread across so many publications and across many decades of work, where...

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A new multi‐stage recession model for Proglacial Lake Humber during the retreat of the last British–Irish Ice Sheet

Cited by 18 publications

References 43 publications

The timing and consequences of the blockage of the Humber Gap by the last British−Irish Ice Sheet

The timing and consequences of the blockage of the Humber Gap by the last British−Irish Ice Sheet

Glacial Lake Pickering: stratigraphy and chronology of a proglacial lake dammed by the North Sea Lobe of the British–Irish Ice Sheet

BRITICE Glacial Map, version 2: a map and GIS database of glacial landforms of the last British–Irish Ice Sheet

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