manicouagan

Carswell

 Crater Name  Location  Latitude  Longitude  Diameter (km)  Age (Ma)  Exposed  Drilled  Target Rock**  Bolide Type***
 Carswell  Saskatchewan, Canada  N 58° 27'  W 109° 30'  39  115 ± 10  Y  Y  M  -
error
error

1. Landsat

2. DEM

References

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Bell, K., Geochronology of the Carswell area, northern Saskatchewan. Laine, R., Alonso, D. and Svab, M., eds., The Carswell Structure Uranium Deposits, Saskatchewan, Geological Association of Canada Special Paper 29, pp. 33-45. 1985.
Bell, K., Cacciotti, A.D. and Schnessl,J.H., Petrography and geochemistry of the Earl River complex, Carswell structure, Saskatchewan - a possible Proterozoic komatiitic succession. Geological Association of Canada, Special Paper 29, pp. 71-80. 1985.
Bottomley, R. J., York, D. and Grieve,R.A.F., 40Argon-39Argon dating of impact craters. Proceedings Lunar and Planetary Science Conference 20th, pp. 421-431. 1990.
Bottomley, R. J., 40Ar-39Ar dating of melt rocks from impact craters. Unpublished Ph.D. Thesis, University of Toronto, Ontario, 104 p. 1982.
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Currie, K. L., Geological notes on the Carswell circular structure, Saskatchewan. Canadian Geological Survey of Canada Paper 67-32, 60 p. 1969.
Currie, K. L., A note on shock metamorphism in the Carswell circular structure, Saskatchewan, Canada. French, B.M. and Short, N.M., eds., Shock Metamorphism of Natural Materials, Mono Book Corp., Baltimore, MD, pp. 379-382. 1968.
Currie, K. L., Shafiquallah, M., Geochemistry of some large Canadian craters. Nature, v. 218, pp. 457-459. 1968.
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Harper, C. T., The Cluff breccias, Carswell impact structure, Saskatchewan (abstract). GAC/MAC, p. A41. 1996.
Harper, C. T., The geology and uranium deposits of the central part of the Carswell structure, northern Saskatchewan, Canada. Unpublished Ph.D. thesis, Colorado School of Mines, Golden Colorado, 337 p. 1983.
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* 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)