Submarine geomorphology of the northeastern Baffin Island fiords and cross-shelf troughs
This paper presents a series of 50 geomorphological maps of the seabed of northeastern Baffin Island fiords and cross-shelf troughs, in eastern Arctic Canada. The mapping was produced using swath bathymetry imagery from multiple bathymetry datasets. A total of 24 types of landform were systematicall...
| Main Authors: | , |
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| Format: | Dataset |
| Language: | unknown |
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Taylor & Francis
2019
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| Online Access: | https://dx.doi.org/10.6084/m9.figshare.9569684.v1 https://tandf.figshare.com/articles/dataset/Submarine_geomorphology_of_the_northeastern_Baffin_Island_fiords_and_cross-shelf_troughs/9569684/1 |
| Summary: | This paper presents a series of 50 geomorphological maps of the seabed of northeastern Baffin Island fiords and cross-shelf troughs, in eastern Arctic Canada. The mapping was produced using swath bathymetry imagery from multiple bathymetry datasets. A total of 24 types of landform were systematically mapped (>55,000 landforms) and reflect processes linked to subglacial, ice-marginal or paraglacial to postglacial environments. The landforms record the transition of the seabed from being covered by a marine-terminating ice sheet to the establishment of postglacial conditions. The landform assemblages allow the distinction of ice-flows orientation and ice-stream pathways along fiords and cross-shelf troughs. The multiple moraines and grounding-zone wedges indicate that the ice margin stabilized during retreat and that the overall deglaciation occurred by steps. These maps provide a framework for future investigations in northeastern Baffin Island fiords and shelf and can also provide a template for future seabed geomorphological studies in Arctic Canada. |
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