Holocene Emergence of the South and East Coasts of Melville Island, Queen Elizabeth Islands, Northwest Territories, Canada
Bibliographic Data
| ID | 16865438 |
|---|---|
| Authors | Patrick McLaren, D M Barnett (0000-0001-6606-0581) |
| Year | 1978 |
| Volume | 31 |
| Issue | 4 |
| Publication date | 1978-01-01 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | ARCTIC (JOURNAL) |
| Journal identifiers | ISSN: 0004-0843 • E-ISSN: 1923-1245 |
| Publisher | The Arctic Institute of North America (PUBLISHER) |
| DOI | 10.14430/arctic2669 |
| OpenAlex | W2050013514 |
| Language | EN |
| Citations received | 1 |
| References cited | 2 |
Twenty-five radiocarbon dates from the coast of Melville Island show that there has been up to 100 m of Holocene emergence. This evidence of post-glacial rebound suggests there was significant late-Wisconsin glacier cover on or near the island. The Winter Harbour moraine on the south coast is thought to mark the maximum northward advance of the Laurentide ice. However, emergence for this area appears to be essentially complete, whereas the northeast coast is still recovering at a rate of approximately 0.35 cm/yr. Ice cover in the region to the northeast must, therefore, have been thicker and/or lasted longer than in the peripheral areas of the Laurentide ice, lending support to the concept of an Innuitian Ice Sheet, rather than local ice masses over the central Queen Elizabeth Islands. Unfortunately, there is an absence of fresh glacial landforms and stratigraphy that can be attributed to the Innuitian Ice Sheet. We suggest that this ice sheet may have had a thermal regime below the pressure melting point, thus depriving the ice of much of its erosive and depositional capabilities, but with a sufficient mass to account for the observed pattern of emergence
Cryosphere · Deglaciation · Geography · Glacial period · Glacier · Holocene · Ice sheet · Ice stream · Landform · Moraine · Physical geography · Radiocarbon dating · Sea ice · Wisconsin glaciation · Cryospheric studies and observations · Geology · Geology and Paleoclimatology Research · Oceanography · Paleontology · Polar Research and Ecology
| Citations per year | 0.03 |
|---|---|
| Citation span | 1991 - 1991 (1) |
| Highly cited | No |