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Earth Impact Database Sorted by : | Name | Diameter | Age |


Maple Creek

Crater Name
Diameter (km)
Age (Ma)*
Target Rock**
Bolide Type***
Maple Creek
Saskatchewan, Canada
N 49° 48'
W 109° 6'
< 75


Feinstein, S., Kohn, B.P., Osadetz, K. G., O'Sullivan,P.B.and R.Everitt., Phanerozoic thermal history of the Williston basin: a reconnnaissance apatite fission track study, GAC/MAC Annual Meeting, Abstracts Volume, p 28. 1996.
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.
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.
Mazur, M. J., Stewart, R. R. &. A. R. Hildebrand., Seismic characterization of buried possible meteorite impact structures, Lunar and Planetary Science XXX. 1999.
Mazur, M. J., Stewart, R.R.,The CREWES Project and H.H.Westbroek., Seismic character of meteorite impact craters. SEG International Exposition, 67th Annual Meeting, Expanded Abstracts. 1997.
Vreeken, W. J., Postglacial geomorphic evolution of the Maple Creek Basin, Pallister Triangle, Saskatchewan, Canada, 1998 GSA Annual Meeting, Abstract 50594. 1998.
Westbroek, H. H., Stewart, R. R., The White Valley structure, Saskatchewan: a possible meteorite impact crater. Canadian Geophysical Union, Program and Abstracts, May 22-26, 1995. 1995.


* 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)



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