Global InformationCorossol crater information
| Corossol structure | |
|---|---|
| Corossol crater | |
  Corossol structure Location of the Corossol structure in Quebec | |
| Impact crater/structure | |
| Confidence | Possible[1][2] |
| Diameter | 4.1 kilometres (3 mi)[1] |
| Age | Between post-Middle Ordovician and pre-Quaternary[1][2] |
| Exposed | Yes, seabottom at water depths from 40–208 metres (131–682 ft)[1] |
| Drilled | No |
| Location | |
| Location | Gulf of Saint Lawrence, Côte-Nord, Quebec |
| Coordinates | 50°03′00″N 66°23′00″W / 50.05°N 66.383333°W |
| Country | Canada |
| Province | Québec |
| Municipality | Sept-Îles |
The Corossol structure, which is also known as the Corossol crater, is a circular, 4.3-by-3.9-kilometre (2.7 by 2.4 mi) in diameter, underwater bedrock feature that is exposed on the gulf floor of the northwestern Gulf of Saint Lawrence 20-kilometre (12 mi) offshore of the city of Sept-Îles, Quebec, in eastern Canada. It is hypothesized to be a possible pre-Pleistocene, extraterrestrial impact structure. It lies underwater at a depth of 40–208-metre (131–682 ft). This underwater feature was found during the study of high-resolution bathymetric and sub-bottom profiler data collected south of the city of Sept-Iles in the northwestern Gulf of Saint Lawrence.[1][2]
- ^ a b c d e Lajeunesse, P., St‐Onge, G., Locat, J., Duchesne, M.J., Higgins, M.D., Sanfaçon, R. and Ortiz, J., 2013. The Corossol structure: A possible impact crater on the seafloor of the northwestern Gulf of St. Lawrence, Eastern Canada. Meteoritics & Planetary Science, 48(12), pp. 2542–2558.
- ^ a b c Lajeunesse, P., Duchesne, M.J., St-Onge, G., Locat, J., Higgins, M., Sanfaçon, R. and Ortiz, J., 2016. The Corossol Structure: a glaciated crater of possible impact origin in the northwestern Gulf of St Lawrence, eastern Canada. In Dowdeswell, J. A., Canals, M., Jakobsson, M., Todd, B. J., Dowdeswell, E. K. & Hogan, K. A. (eds) 2016. Atlas of Submarine Glacial Landforms: Modern, Quaternary and Ancient. Geological Society, London, Memoirs, 46(1), pp.127–128.