The last Scottish ice‐sheet: facts and speculative discussion

Evidence relating to the extent of the last (Late Devensian) Scottish ice‐sheet is critically discussed, particular attention being given to the limitations of some radiocarbon dates and incorrect inferences based on radiocarbon dates. It is suggested that the last Scottish and Scandinavian ice‐shee...

Full description

Bibliographic Details
Published in:Boreas
Main Author: SISSONS, J. BRIAN
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1981
Subjects:
Online Access:https://doi.org/10.1111/j.1502-3885.1981.tb00464.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.1981.tb00464.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.1981.tb00464.x
_version_ 1821541522094424064
author SISSONS, J. BRIAN
author_facet SISSONS, J. BRIAN
author_sort SISSONS, J. BRIAN
collection Wiley Online Library
container_issue 1
container_start_page 1
container_title Boreas
container_volume 10
description Evidence relating to the extent of the last (Late Devensian) Scottish ice‐sheet is critically discussed, particular attention being given to the limitations of some radiocarbon dates and incorrect inferences based on radiocarbon dates. It is suggested that the last Scottish and Scandinavian ice‐sheets were not confluent and that Orkney and NE Caithness may not have been covered by the last Scottish ice‐sheet. Ice‐sheet growth and decay are considered in relation to possible positions of the oceanic and atmospheric polar fronts: implications are that much the greater part of ice‐sheet decay resulted from inadequate snowfall and that the maximal limits of the last ice‐sheet may not have been synchronous. Ice‐sheet calving may have resulted in an independent ice mass over the Outer Hebrides. It is suggested that most of the bed of the Central North Sea became land during the Late Devensian and that a large delta existed in the eastern part of this area. It is also suggested that the buried and infilled channels of this eastern area, which are normally interpreted as tunnel valleys, are shallow delta channels whose present depth is due to delta subsidence
format Article in Journal/Newspaper
genre Ice Sheet
genre_facet Ice Sheet
id crwiley:10.1111/j.1502-3885.1981.tb00464.x
institution Open Polar
language English
op_collection_id crwiley
op_container_end_page 17
op_doi https://doi.org/10.1111/j.1502-3885.1981.tb00464.x
op_rights http://onlinelibrary.wiley.com/termsAndConditions#vor
op_source Boreas
volume 10, issue 1, page 1-17
ISSN 0300-9483 1502-3885
publishDate 1981
publisher Wiley
record_format openpolar
spelling crwiley:10.1111/j.1502-3885.1981.tb00464.x 2025-01-16T22:24:47+00:00 The last Scottish ice‐sheet: facts and speculative discussion SISSONS, J. BRIAN 1981 https://doi.org/10.1111/j.1502-3885.1981.tb00464.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.1981.tb00464.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.1981.tb00464.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 10, issue 1, page 1-17 ISSN 0300-9483 1502-3885 journal-article 1981 crwiley https://doi.org/10.1111/j.1502-3885.1981.tb00464.x 2024-12-09T19:49:31Z Evidence relating to the extent of the last (Late Devensian) Scottish ice‐sheet is critically discussed, particular attention being given to the limitations of some radiocarbon dates and incorrect inferences based on radiocarbon dates. It is suggested that the last Scottish and Scandinavian ice‐sheets were not confluent and that Orkney and NE Caithness may not have been covered by the last Scottish ice‐sheet. Ice‐sheet growth and decay are considered in relation to possible positions of the oceanic and atmospheric polar fronts: implications are that much the greater part of ice‐sheet decay resulted from inadequate snowfall and that the maximal limits of the last ice‐sheet may not have been synchronous. Ice‐sheet calving may have resulted in an independent ice mass over the Outer Hebrides. It is suggested that most of the bed of the Central North Sea became land during the Late Devensian and that a large delta existed in the eastern part of this area. It is also suggested that the buried and infilled channels of this eastern area, which are normally interpreted as tunnel valleys, are shallow delta channels whose present depth is due to delta subsidence Article in Journal/Newspaper Ice Sheet Wiley Online Library Boreas 10 1 1 17
spellingShingle SISSONS, J. BRIAN
The last Scottish ice‐sheet: facts and speculative discussion
title The last Scottish ice‐sheet: facts and speculative discussion
title_full The last Scottish ice‐sheet: facts and speculative discussion
title_fullStr The last Scottish ice‐sheet: facts and speculative discussion
title_full_unstemmed The last Scottish ice‐sheet: facts and speculative discussion
title_short The last Scottish ice‐sheet: facts and speculative discussion
title_sort last scottish ice‐sheet: facts and speculative discussion
url https://doi.org/10.1111/j.1502-3885.1981.tb00464.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.1981.tb00464.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.1981.tb00464.x