manicouagan

Elbow

 Crater Name  Location  Latitude  Longitude  Diameter (km)  Age (Ma)  Exposed  Drilled  Target Rock**  Bolide Type***
 Elbow  Saskatchewan, Canada  N 50° 59'  W 106° 43'  8  395 ± 25  N  Y  S  -

Map

References
Clark, J. F., Geomagnetic surveys at four Canadian craters. Canada Department of Energy, Mines and Resources, Earth Physics Branch, Geomagnetic Report, pp. 1-41. 1979.
Demille, G., The Elbow structure of south-central Saskatchewan. Journal of the Alberta Society of Petroleum Geologists, v 8, n 5, p 154-162. 1960.
Edwards R.G., Journal of the Alberta Society of Petroleum Geologists, 1960.
Gent, M. R., Kreis, L. K. and D. Gendzwill., The Maple Creek structure, southwestern Saskatchewan. Summary of Investigations 1992, Saskatchewan Geological Survey, Rep. 92-4, p 204-208. 1992.
Goudie, M. A., The Elbow area of Saskatchewan. Oil in Canada, Technical Section, p 18 - 22, April 30, 1956. 1956.
Grieve, R. A. F., Kreis, K., Therriault,A.M.and P.B.Robertson., Impact structures in the Williston Basin. Meteoritics and Planetary Science, v 33, n 4, p A63-A64. 1998.
Kupsch, W. O., Submask geology in Saskatchewan. Williston Basin Symposium, pp 10. 1956.
Robertson P. B., Grieve R. A. F., Impact structures in Canada, 1975.
* 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)