Glacial geomorphology of the central sector of the Cordilleran Ice Sheet, northern British Columbia, Canada
Northern British Columbia was repeatedly covered by the Cordilleran Ice Sheet (CIS) during glacial periods of the Quaternary. However, its mountainous terrain and remote location have thus far impeded our understanding of this central sector of the ice sheet. The improved resolution and coverage of...
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ftsmithonian:oai:figshare.com:article/13636799 2023-05-15T16:40:02+02:00 Glacial geomorphology of the central sector of the Cordilleran Ice Sheet, northern British Columbia, Canada Helen Dulfer (10029980) 2021-04-30T09:27:10Z https://doi.org/10.6084/m9.figshare.13636799.v1 unknown https://figshare.com/articles/dataset/Glacial_geomorphology_of_the_central_sector_of_the_Cordilleran_Ice_Sheet_northern_British_Columbia_Canada/13636799 doi:10.6084/m9.figshare.13636799.v1 CC BY 4.0 CC-BY Glaciology Cordilleran Ice Sheet Glacial landforms Remote sensing imagery Dataset 2021 ftsmithonian https://doi.org/10.6084/m9.figshare.13636799.v1 2021-05-05T17:02:15Z Northern British Columbia was repeatedly covered by the Cordilleran Ice Sheet (CIS) during glacial periods of the Quaternary. However, its mountainous terrain and remote location have thus far impeded our understanding of this central sector of the ice sheet. The improved resolution and coverage of remotely sensed data provides new opportunities to unravel the glacial history of this inaccessible location. Here we present a comprehensive map of glacial landforms for the central sector of the CIS (between 55 and 60˚N). Seven landform categories were mapped: ice flow parallel lineations, moraines (CIS outlet glacier moraines, Late Glacial moraines and moraines of unknown origin), meltwater channels (lateral and submarginal, subglacial, proglacial, and meltwater channels of unknown origin), kame terraces, eskers (single ridges and esker complexes), perched deltas and subglacial ribs. Collectively, these landforms provide a record of the extent, thickness and behaviour of the former ice mass, the direction of its movement, and nature and pattern of ice retreat. Therefore, this glacial landform map provides a basis for future reconstructions of the glacial dynamics and chronology of the CIS. Dataset Ice Sheet Unknown Canada British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftsmithonian |
language |
unknown |
topic |
Glaciology Cordilleran Ice Sheet Glacial landforms Remote sensing imagery |
spellingShingle |
Glaciology Cordilleran Ice Sheet Glacial landforms Remote sensing imagery Helen Dulfer (10029980) Glacial geomorphology of the central sector of the Cordilleran Ice Sheet, northern British Columbia, Canada |
topic_facet |
Glaciology Cordilleran Ice Sheet Glacial landforms Remote sensing imagery |
description |
Northern British Columbia was repeatedly covered by the Cordilleran Ice Sheet (CIS) during glacial periods of the Quaternary. However, its mountainous terrain and remote location have thus far impeded our understanding of this central sector of the ice sheet. The improved resolution and coverage of remotely sensed data provides new opportunities to unravel the glacial history of this inaccessible location. Here we present a comprehensive map of glacial landforms for the central sector of the CIS (between 55 and 60˚N). Seven landform categories were mapped: ice flow parallel lineations, moraines (CIS outlet glacier moraines, Late Glacial moraines and moraines of unknown origin), meltwater channels (lateral and submarginal, subglacial, proglacial, and meltwater channels of unknown origin), kame terraces, eskers (single ridges and esker complexes), perched deltas and subglacial ribs. Collectively, these landforms provide a record of the extent, thickness and behaviour of the former ice mass, the direction of its movement, and nature and pattern of ice retreat. Therefore, this glacial landform map provides a basis for future reconstructions of the glacial dynamics and chronology of the CIS. |
format |
Dataset |
author |
Helen Dulfer (10029980) |
author_facet |
Helen Dulfer (10029980) |
author_sort |
Helen Dulfer (10029980) |
title |
Glacial geomorphology of the central sector of the Cordilleran Ice Sheet, northern British Columbia, Canada |
title_short |
Glacial geomorphology of the central sector of the Cordilleran Ice Sheet, northern British Columbia, Canada |
title_full |
Glacial geomorphology of the central sector of the Cordilleran Ice Sheet, northern British Columbia, Canada |
title_fullStr |
Glacial geomorphology of the central sector of the Cordilleran Ice Sheet, northern British Columbia, Canada |
title_full_unstemmed |
Glacial geomorphology of the central sector of the Cordilleran Ice Sheet, northern British Columbia, Canada |
title_sort |
glacial geomorphology of the central sector of the cordilleran ice sheet, northern british columbia, canada |
publishDate |
2021 |
url |
https://doi.org/10.6084/m9.figshare.13636799.v1 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) |
geographic |
Canada British Columbia |
geographic_facet |
Canada British Columbia |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
https://figshare.com/articles/dataset/Glacial_geomorphology_of_the_central_sector_of_the_Cordilleran_Ice_Sheet_northern_British_Columbia_Canada/13636799 doi:10.6084/m9.figshare.13636799.v1 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.13636799.v1 |
_version_ |
1766030398957027328 |