Tunnunik (formerly Prince Albert)
| Crater Name | Location | Latitude | Longitude | Diameter (km) | Age (Ma) | Exposed | Drilled | Target Rock** | Bolide Type*** |
|---|---|---|---|---|---|---|---|---|---|
| Tunnunik | Victoria Island, Arctic Canada | N 72° 28' | W 113° 58' | ~ 25 | 130-450 | Y | N | S | - |
Click here for images of shatter cones from the University of Saskatchewan's Flikr page.
TanDEM-X elevation model of Tunnunik (provided by Manfred Gottwald,German Aerospace Center)
References |
Dewing, K., Pratt, B. R., Hadlari, T., Brent, T., Bédard, J. and Rainbird, R. H. 2013. Newly identified “Tunnunik” impact structure, Prince Albert Peninsula, northwestern Victoria Island, Arctic Canada. Meteoritics & Planetary Science. doi: 10.1111/maps.12052. |
| * pre-1977 K-Ar, Ar-Ar and Rb-Sr ages recalculated using the decay constants of Steiger and Jager (1977) Ages in millions of years (Ma) before present. ** Abbreviations: C - Crystalline Target; C-Ms - Metasedimentary Target; M - Mixed Target (i.e.sedimentary strata overlying crystalline basement); S - sedimentary target (i.e. no crystalline rocks affected by the impact event). From Osinski. G. R., Spray J. G., and Grieve R. A. F. 2007. Impact melting in sedimentary target rocks: A synthesis. In The Sedimentary Record of Meteorite Impacts, Geological Society of America Special Paper. Editors: Evans K. Horton W., King D., Morrow J., and Warme J. Geological Society of America: Boulder, in press. ***From Koeberl,C. Identification of meteoritic components in impactites. 1998, Koeberl, C. The Geochemistry and Cosmochemistry of Impacts. 2007 and PASSC Files. (IAB, IIIAB, IIIB, IIID - Iron Meteorite) |