Defining the centre of glacio‐isostatic uplift of the last Scottish ice‐sheet: the Parallel Roads of Glen Roy, Scottish Highlands
Abstract The Parallel Roads of Glen Roy, Scottish Highlands, represent a series of ice‐dammed lake shorelines produced during the cold climate of the Younger Dryas. It is shown here that each lake shoreline exhibits evidence of glacio‐isostatic tilting associated with the decay of the last (Late Dev...
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crwiley:10.1002/jqs.712 2024-06-02T08:08:14+00:00 Defining the centre of glacio‐isostatic uplift of the last Scottish ice‐sheet: the Parallel Roads of Glen Roy, Scottish Highlands Dawson, Alastair G. Hampton, Shaun Fretwell, Peter Harrison, Stephan Greengrass, Peter 2002 http://dx.doi.org/10.1002/jqs.712 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.712 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.712 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 17, issue 5-6, page 527-533 ISSN 0267-8179 1099-1417 journal-article 2002 crwiley https://doi.org/10.1002/jqs.712 2024-05-03T11:28:48Z Abstract The Parallel Roads of Glen Roy, Scottish Highlands, represent a series of ice‐dammed lake shorelines produced during the cold climate of the Younger Dryas. It is shown here that each lake shoreline exhibits evidence of glacio‐isostatic tilting associated with the decay of the last (Late Devensian) ice sheet. The directions of tilting of the three shorelines (in the quadrant between north and east), are at variance with published glacio‐isostatic uplift isobases based on marine shoreline data that suggest a pattern of decreased uplift towards the northwest. The gradient of shoreline tilting (between 0.11 and 0.14 m km −1 ) is similar to measured regional tilts of a well‐developed marine shoreline (the Main Rock Platform) considered to have been produced in Scotland during the same period of extreme cold climate. Consideration of the ice‐dammed lake shoreline data also points to the former occurrence of two separate episodes of tectonic activity during the Younger Dryas. Copyright © 2002 John Wiley & Sons, Ltd. Article in Journal/Newspaper Ice Sheet Wiley Online Library Dammed Lake ENVELOPE(-68.258,-68.258,68.496,68.496) Tilting ENVELOPE(-54.065,-54.065,49.700,49.700) Journal of Quaternary Science 17 5-6 527 533 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The Parallel Roads of Glen Roy, Scottish Highlands, represent a series of ice‐dammed lake shorelines produced during the cold climate of the Younger Dryas. It is shown here that each lake shoreline exhibits evidence of glacio‐isostatic tilting associated with the decay of the last (Late Devensian) ice sheet. The directions of tilting of the three shorelines (in the quadrant between north and east), are at variance with published glacio‐isostatic uplift isobases based on marine shoreline data that suggest a pattern of decreased uplift towards the northwest. The gradient of shoreline tilting (between 0.11 and 0.14 m km −1 ) is similar to measured regional tilts of a well‐developed marine shoreline (the Main Rock Platform) considered to have been produced in Scotland during the same period of extreme cold climate. Consideration of the ice‐dammed lake shoreline data also points to the former occurrence of two separate episodes of tectonic activity during the Younger Dryas. Copyright © 2002 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Dawson, Alastair G. Hampton, Shaun Fretwell, Peter Harrison, Stephan Greengrass, Peter |
spellingShingle |
Dawson, Alastair G. Hampton, Shaun Fretwell, Peter Harrison, Stephan Greengrass, Peter Defining the centre of glacio‐isostatic uplift of the last Scottish ice‐sheet: the Parallel Roads of Glen Roy, Scottish Highlands |
author_facet |
Dawson, Alastair G. Hampton, Shaun Fretwell, Peter Harrison, Stephan Greengrass, Peter |
author_sort |
Dawson, Alastair G. |
title |
Defining the centre of glacio‐isostatic uplift of the last Scottish ice‐sheet: the Parallel Roads of Glen Roy, Scottish Highlands |
title_short |
Defining the centre of glacio‐isostatic uplift of the last Scottish ice‐sheet: the Parallel Roads of Glen Roy, Scottish Highlands |
title_full |
Defining the centre of glacio‐isostatic uplift of the last Scottish ice‐sheet: the Parallel Roads of Glen Roy, Scottish Highlands |
title_fullStr |
Defining the centre of glacio‐isostatic uplift of the last Scottish ice‐sheet: the Parallel Roads of Glen Roy, Scottish Highlands |
title_full_unstemmed |
Defining the centre of glacio‐isostatic uplift of the last Scottish ice‐sheet: the Parallel Roads of Glen Roy, Scottish Highlands |
title_sort |
defining the centre of glacio‐isostatic uplift of the last scottish ice‐sheet: the parallel roads of glen roy, scottish highlands |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1002/jqs.712 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.712 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.712 |
long_lat |
ENVELOPE(-68.258,-68.258,68.496,68.496) ENVELOPE(-54.065,-54.065,49.700,49.700) |
geographic |
Dammed Lake Tilting |
geographic_facet |
Dammed Lake Tilting |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Journal of Quaternary Science volume 17, issue 5-6, page 527-533 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.712 |
container_title |
Journal of Quaternary Science |
container_volume |
17 |
container_issue |
5-6 |
container_start_page |
527 |
op_container_end_page |
533 |
_version_ |
1800753430169387008 |