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GEOREF RECORD

Glacial lake terraces at the eastern end of the Vale of Pickering, North Yorkshire, UK

William A. Fairburn
Glacial lake terraces at the eastern end of the Vale of Pickering, North Yorkshire, UK
Proceedings of the Yorkshire Geological Society (2019) 62 (4): 260-272

Abstract

Detailed landform mapping of key areas in the Vale of Pickering, supported by LiDAR interpretation, has produced sufficient evidence to establish a reinterpretation of the Mid to Late Pleistocene chronology of the Vale of Pickering by defining the margins of two temporally distinct proglacial lakes and reaching a new understanding of the origin of some well-documented geomorphological features. The main significance of the mapping has been to establish that the Hutton Buscel terrace probably originated by lateral erosion along the southern edge of the Corallian Group dip slope of the North York Moors prior to deposition of a broad alluvial plain below a 70 m strandline. Traces of a comparable feature were also located below the Chalk Group escarpment on the southern side of the Vale of Pickering. Perhaps of equal significance has been confirmation that the younger of the two lakes, which has a 45 m shoreline, was possibly connected to Lake Humber in the Vale of York through the Derwent Valley. Evidence for such a lake was provided by mapped shorelines at Malton and Pickering that appear compatible with shorelines in Lake Humber. To account for deep erosion of the Derwent and Mere valleys and the occurrence of laminated clays at c. 65 m, below a 70 m shoreline above Crambe, regional uplift has been evoked post the older 70 m lake. In-valley alluvial fans have been mapped for the first time in Newton Dale and Thornton Dale.


ISSN: 0044-0604
EISSN: 2041-4811
Coden: PYGSAB
Serial Title: Proceedings of the Yorkshire Geological Society
Serial Volume: 62
Serial Issue: 4
Title: Glacial lake terraces at the eastern end of the Vale of Pickering, North Yorkshire, UK
Affiliation: 101, Leetham House, Core 3, Palmer Street, York, United Kingdom
Pages: 260-272
Published: 2019
Text Language: English
Publisher: Yorkshire Geological Society, Leeds, United Kingdom
References: 31
Accession Number: 2020-012994
Categories: Geomorphology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. geol. sketch map
N53°37'00" - N54°34'00", W02°34'00" - W00°12'00"
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2020, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 202009
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