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Quaternary geology of part of the Kale Water catchment, western Cheviot Hills, southern Scotland

W. A. Mitchell
Quaternary geology of part of the Kale Water catchment, western Cheviot Hills, southern Scotland
Scottish Journal of Geology (2008) 44 (1): 51-63

Abstract

This study reports on a survey of the middle part of the Kale Water, one of the western Cheviot catchments. Field mapping has revealed the presence of weathered andesite bedrock on many hillslopes. Conversely, evidence for glaciation is limited and restricted to a few exposures of till and meltwater channels suggesting that the last (Late Devensian) ice sheet in this area was cold-based, creating a frozen patch that lay to the east of a thermal boundary related to the Tweed ice stream. A well developed solifluction sheet is found on the lower valley slopes, indicating remobilization of former glacial sediments under periglacial conditions when head formed on the upper slopes. A particular feature is the presence of stratified fine gravels forming an upper lithofacies on many hillslopes which appear to be due to reworking of weathered material. Although there has been no dating of these sediments, it is suggested that the upper part of the sequence dates from Late Devensian deglaciation with the soliflucted sediments related to periglacial processes and paraglacial adjustment in association with permafrost degradation at the end of the Dimlington Stadial, and the stratified gravels related to fluvio-nivational processes associated with snowmelt during the subsequent Loch Lomond Stadial.


ISSN: 0036-9276
EISSN: 2041-4951
Coden: SJGEAX
Serial Title: Scottish Journal of Geology
Serial Volume: 44
Serial Issue: 1
Title: Quaternary geology of part of the Kale Water catchment, western Cheviot Hills, southern Scotland
Author(s): Mitchell, W. A.
Affiliation: Durham University, Department of Geography, Durham, United Kingdom
Pages: 51-63
Published: 2008
Text Language: English
Publisher: Scottish Academic Press, Edinburgh, United Kingdom
References: 58
Accession Number: 2009-010060
Categories: Quaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. geol. sketch map
N55°00'00" - N56°00'00", W03°00'00" - W02°00'00"
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 200906
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