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


Eagle Butte

Crater Name
Diameter (km)
Age (Ma)*
Target Rock**
Bolide Type***
Eagle Butte
Alberta, Canada
N 49° 42'
W 110° 30'
< 65


Vertical image

Belyea, H. R., Devonian Elk Point group, central and southern Alberta. Department of Mines and Technical Surveys, Canada, Paper 59-2, 14 p. 1959.
Clark, J. F., Magnetic profiles at Holleford crater, eastern Ontario. Geological Association of Canada, Proceedings, v. 20, pp. 24-29. 1969.
Dence, M. R., The nature and significance of terrestrial impact structures. International Geological Congress, 24th, Montreal, Canada, pp. 77-89. 1972.
Ezeji-Okoye, S., The origin of the Eagle Butte structure, Eagle Butte, Alberta Canada. Unpublished Report for Pan Canadian Petroleum, 75 p. 1985.
Grieve, R. A. F., The record of impact on Earth: Implications for a major Cretaceous/Tertiary impact event. Geological Society of America, Special Paper 190, pp. 25-37. 1982.
Gurov, E. P., Gurova, E. P., Impact structures on the Earth's surface (in Russian). Geologicheskii Zhurnal, v. 47, pp. 117-124. 1987.
Haites, T. B., van Hees, H., The origin of some anomalies in the plains of western Canada. Journal of the Alberta Society of Petroleum Geologists, v. 10, pp. 511-533. 1962.
Lawton D.C., Stewart, R. R., Geophysical signature of the Eagle Butte impact crater (abstract). GAC/MAC, Program with Abstracts, Annual Meeting, v. 19, p. A62. 1994.
Lawton, D. C., Stewart, R.R. and Gault,R., The geophysical signatiure of the Eagle Butte impact crater (abstract). Canadian Geophysical Union, Banff, Alberta. 1993.
Masaitis, V. L., Danilin, A.N., Maschak, M.S., Raykhlin, A.I., Selivanovskaya, T.V. and Shadenkov,Ye.M., The Geology of Astroblemes (in Russian). Leningrad, Nedra, 231 p. 1980.
McHone J F., Dietz, R. S., Earth's multiple impact craters and astroblemes (abstract). Lunar and Planetary Science, v. XXIII, pp. 887-888. 1992.
Ogilvie, B. Y., Robertson, B. and Grieve,R.A.F., Meteorite impact features in Canada: An inventory and an evaluation. Unpublished Report, 180 p. 1984.
Robertson, P. B., Grieve, R. A. F., Impact structures in Canada: Their recognition and characteristics. Journal of the Royal Astronomical Society of Canada, v. 69, pp. 1-21. 1975.
Russell, L. S., Landes, R. W., Geology of the southern Alberta plains. Geological Survey of Canada Memorandum 221, pp. 124-128. 1940.
Sawatzky, H. B., Two probable late Cretaceous astroblemes in western Canada - Eagle Butte, Alberta and Dumas, Saskatchewan. Geophysics, v. 41, pp. 1261-1271. 1976.
Visser, J. and Scott, D., An Early Tertiary Meteorite Impact Structure at Eagle Butte, Alberta. CSPG Core Conference 2005, pp. 324-328. 2005.


* 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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