The pleistocene geology and geomorphology of western Leicestershire
The Pleistocene stratigraphy of an area of 116 km2 in western Leicestershire was mapped largely by means of a hand-auger. The investigations revealed the following sequence: Flinty Gravel, Chalky Till, Pennine Till, Cadeby Sand and Gravel Bosworth Clay, Basal Till. The vicinity of the sand and grave...
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ftleicesterunfig:oai:figshare.com:article/10092311 2023-05-15T16:41:15+02:00 The pleistocene geology and geomorphology of western Leicestershire Terry David Douglas 1975-01-01T00:00:00Z https://figshare.com/articles/thesis/The_pleistocene_geology_and_geomorphology_of_western_Leicestershire/10092311 unknown 2381/7493 https://figshare.com/articles/thesis/The_pleistocene_geology_and_geomorphology_of_western_Leicestershire/10092311 All Rights Reserved Uncategorized IR content Text Thesis 1975 ftleicesterunfig 2021-11-11T20:11:57Z The Pleistocene stratigraphy of an area of 116 km2 in western Leicestershire was mapped largely by means of a hand-auger. The investigations revealed the following sequence: Flinty Gravel, Chalky Till, Pennine Till, Cadeby Sand and Gravel Bosworth Clay, Basal Till. The vicinity of the sand and gravel workings at Cadeby was selected as the type site. The sub-drift surface of the area is dominated by the Hinckley valley, a major left bank tributary of the proto Soar. The Basal Till contains erratics of a predominantly, but not exclusively, northern provenance and betokens an ice advance prior to the accumulation of the Bosworth Clay, an extensive glacio-lacustrine formation. This proglacial lake is regarded as part of Lake Harrison which was initiated on the retreat and stagnation of ice following the deposition of the Basal Till. A subsequent readvance of the ice led to the deposition of a large sandur over the lake deposits and subsequently a till sequence comprising both Pennine and Chalky Till varieties. Till macrofabric analysis supports an interpretation of much of the Pennine Till as a lodgement till but overlying 'banded tills' indicate the contemporaneous deposition of chalky material, possibly through melt-out from a compound ice sheet. This sequence of deposits is readily correlated with that described by Shotton in the Avon valley and has been matched with Rice's succession in the Leicester area. The entire sequence is regarded as the product of one Wolstonian stadial. Sands in the cores of Devensian involutions are probably the remnants of a once extensive sheet of aeolian material. Thesis Ice Sheet University of Leicester: Figshare Leicester ENVELOPE(-116.403,-116.403,55.717,55.717) |
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University of Leicester: Figshare |
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ftleicesterunfig |
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unknown |
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Uncategorized IR content |
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Uncategorized IR content Terry David Douglas The pleistocene geology and geomorphology of western Leicestershire |
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Uncategorized IR content |
description |
The Pleistocene stratigraphy of an area of 116 km2 in western Leicestershire was mapped largely by means of a hand-auger. The investigations revealed the following sequence: Flinty Gravel, Chalky Till, Pennine Till, Cadeby Sand and Gravel Bosworth Clay, Basal Till. The vicinity of the sand and gravel workings at Cadeby was selected as the type site. The sub-drift surface of the area is dominated by the Hinckley valley, a major left bank tributary of the proto Soar. The Basal Till contains erratics of a predominantly, but not exclusively, northern provenance and betokens an ice advance prior to the accumulation of the Bosworth Clay, an extensive glacio-lacustrine formation. This proglacial lake is regarded as part of Lake Harrison which was initiated on the retreat and stagnation of ice following the deposition of the Basal Till. A subsequent readvance of the ice led to the deposition of a large sandur over the lake deposits and subsequently a till sequence comprising both Pennine and Chalky Till varieties. Till macrofabric analysis supports an interpretation of much of the Pennine Till as a lodgement till but overlying 'banded tills' indicate the contemporaneous deposition of chalky material, possibly through melt-out from a compound ice sheet. This sequence of deposits is readily correlated with that described by Shotton in the Avon valley and has been matched with Rice's succession in the Leicester area. The entire sequence is regarded as the product of one Wolstonian stadial. Sands in the cores of Devensian involutions are probably the remnants of a once extensive sheet of aeolian material. |
format |
Thesis |
author |
Terry David Douglas |
author_facet |
Terry David Douglas |
author_sort |
Terry David Douglas |
title |
The pleistocene geology and geomorphology of western Leicestershire |
title_short |
The pleistocene geology and geomorphology of western Leicestershire |
title_full |
The pleistocene geology and geomorphology of western Leicestershire |
title_fullStr |
The pleistocene geology and geomorphology of western Leicestershire |
title_full_unstemmed |
The pleistocene geology and geomorphology of western Leicestershire |
title_sort |
pleistocene geology and geomorphology of western leicestershire |
publishDate |
1975 |
url |
https://figshare.com/articles/thesis/The_pleistocene_geology_and_geomorphology_of_western_Leicestershire/10092311 |
long_lat |
ENVELOPE(-116.403,-116.403,55.717,55.717) |
geographic |
Leicester |
geographic_facet |
Leicester |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
2381/7493 https://figshare.com/articles/thesis/The_pleistocene_geology_and_geomorphology_of_western_Leicestershire/10092311 |
op_rights |
All Rights Reserved |
_version_ |
1766031674865352704 |