The surficial geology record of ice stream catchment dynamics and ice-divide migration in the Quebec-Labrador sector of the Laurentide Ice Sheet
The surficial geology of an approximately 30 000 km2 region in northeastern Quebec and western Labrador was mapped to elucidate the glacial dynamics of a region that experienced ice divide migrations and determine the net effect of this evolution on the glacial landscape. This region is located in o...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-01-01
|
| Series: | Quaternary Science Advances |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666033423000552 |
| _version_ | 1797269004649234432 |
|---|---|
| author | J.M. Rice R.C. Paulen H.E. Campbell M. Ross |
| author_facet | J.M. Rice R.C. Paulen H.E. Campbell M. Ross |
| author_sort | J.M. Rice |
| collection | DOAJ |
| description | The surficial geology of an approximately 30 000 km2 region in northeastern Quebec and western Labrador was mapped to elucidate the glacial dynamics of a region that experienced ice divide migrations and determine the net effect of this evolution on the glacial landscape. This region is located in one of the major inner-ice dispersal centres of the Laurentide Ice Sheet, the Quebec-Labrador Sector, and therefore provides important information on the overall dynamics of the interior of an ice sheet throughout a glaciation. Along with detailed surficial mapping, landform analysis was conducted to assess changes in ice stream catchments and related ice divide migration and understand their impact on the overall landform record. This work is a synthesis of a four-year mapping program that resulted in the completion of eight 1:100 000 scale surficial geology maps that included three years of field-based investigations. Mapping has revealed a complex landscape with a diverse suite of surficial deposits and a fragmented and overprinted mosaic of landforms, which provides evidence for polythermal subglacial conditions that evolved throughout glaciation. |
| first_indexed | 2024-03-11T17:25:11Z |
| format | Article |
| id | doaj.art-d2f745a4d2604670a0d5d767b473d38f |
| institution | Directory Open Access Journal |
| issn | 2666-0334 |
| language | English |
| last_indexed | 2024-04-25T01:41:29Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Quaternary Science Advances |
| spelling | doaj.art-d2f745a4d2604670a0d5d767b473d38f2024-03-08T05:19:21ZengElsevierQuaternary Science Advances2666-03342024-01-0113100123The surficial geology record of ice stream catchment dynamics and ice-divide migration in the Quebec-Labrador sector of the Laurentide Ice SheetJ.M. Rice0R.C. Paulen1H.E. Campbell2M. Ross3Geological Survey of Canada, 601 Booth St. Ottawa, ON, Canada; Corresponding author.Geological Survey of Canada, 601 Booth St. Ottawa, ON, CanadaGeological Survey of Newfoundland and Labrador, St. John's, NL, CanadaEarth and Environmental Sciences, University of Waterloo, Waterloo, ON, CanadaThe surficial geology of an approximately 30 000 km2 region in northeastern Quebec and western Labrador was mapped to elucidate the glacial dynamics of a region that experienced ice divide migrations and determine the net effect of this evolution on the glacial landscape. This region is located in one of the major inner-ice dispersal centres of the Laurentide Ice Sheet, the Quebec-Labrador Sector, and therefore provides important information on the overall dynamics of the interior of an ice sheet throughout a glaciation. Along with detailed surficial mapping, landform analysis was conducted to assess changes in ice stream catchments and related ice divide migration and understand their impact on the overall landform record. This work is a synthesis of a four-year mapping program that resulted in the completion of eight 1:100 000 scale surficial geology maps that included three years of field-based investigations. Mapping has revealed a complex landscape with a diverse suite of surficial deposits and a fragmented and overprinted mosaic of landforms, which provides evidence for polythermal subglacial conditions that evolved throughout glaciation.http://www.sciencedirect.com/science/article/pii/S2666033423000552Surficial mappingLaurentide ice sheetIce sheet dynamicsGlacial landforms |
| spellingShingle | J.M. Rice R.C. Paulen H.E. Campbell M. Ross The surficial geology record of ice stream catchment dynamics and ice-divide migration in the Quebec-Labrador sector of the Laurentide Ice Sheet Quaternary Science Advances Surficial mapping Laurentide ice sheet Ice sheet dynamics Glacial landforms |
| title | The surficial geology record of ice stream catchment dynamics and ice-divide migration in the Quebec-Labrador sector of the Laurentide Ice Sheet |
| title_full | The surficial geology record of ice stream catchment dynamics and ice-divide migration in the Quebec-Labrador sector of the Laurentide Ice Sheet |
| title_fullStr | The surficial geology record of ice stream catchment dynamics and ice-divide migration in the Quebec-Labrador sector of the Laurentide Ice Sheet |
| title_full_unstemmed | The surficial geology record of ice stream catchment dynamics and ice-divide migration in the Quebec-Labrador sector of the Laurentide Ice Sheet |
| title_short | The surficial geology record of ice stream catchment dynamics and ice-divide migration in the Quebec-Labrador sector of the Laurentide Ice Sheet |
| title_sort | surficial geology record of ice stream catchment dynamics and ice divide migration in the quebec labrador sector of the laurentide ice sheet |
| topic | Surficial mapping Laurentide ice sheet Ice sheet dynamics Glacial landforms |
| url | http://www.sciencedirect.com/science/article/pii/S2666033423000552 |
| work_keys_str_mv | AT jmrice thesurficialgeologyrecordoficestreamcatchmentdynamicsandicedividemigrationinthequebeclabradorsectorofthelaurentideicesheet AT rcpaulen thesurficialgeologyrecordoficestreamcatchmentdynamicsandicedividemigrationinthequebeclabradorsectorofthelaurentideicesheet AT hecampbell thesurficialgeologyrecordoficestreamcatchmentdynamicsandicedividemigrationinthequebeclabradorsectorofthelaurentideicesheet AT mross thesurficialgeologyrecordoficestreamcatchmentdynamicsandicedividemigrationinthequebeclabradorsectorofthelaurentideicesheet AT jmrice surficialgeologyrecordoficestreamcatchmentdynamicsandicedividemigrationinthequebeclabradorsectorofthelaurentideicesheet AT rcpaulen surficialgeologyrecordoficestreamcatchmentdynamicsandicedividemigrationinthequebeclabradorsectorofthelaurentideicesheet AT hecampbell surficialgeologyrecordoficestreamcatchmentdynamicsandicedividemigrationinthequebeclabradorsectorofthelaurentideicesheet AT mross surficialgeologyrecordoficestreamcatchmentdynamicsandicedividemigrationinthequebeclabradorsectorofthelaurentideicesheet |