Kalkkop
Crater Name | Location | Latitude | Longitude | Diameter (km) | Age (Ma) | Exposed | Drilled | Target Rock** | Bolide Type*** |
---|---|---|---|---|---|---|---|---|---|
Kalkkop | South Africa | S 32° 43' | E 24° 26' | 0.64 | 0.25 ± 0.05 | Y | Y | S | - |
1. Landsat Thematic Mapper
2. DEM image Provided by Dr. Carlos Roberto de Souza Filho
3 & 4. Image Provided by Dr. Carlos Roberto de Souza Filho
References |
Blignaut, J. J. G., Rossouw, P.J., de Villiers, J. and Russell,H.D., The geology of the Schoorsteenberg Area, Cape Province. Department of Mines, Geological Survey, Union of South Africa, An Explanation of Sheet No. 166 (Schoorsteenberg), pp. 17-22. 1948. |
Koeberl, C., African meteorite impact craters: Characteristics and geological importance. Journal of African Sciences, v. 18, pp. 263-295. 1994. |
Koeberl, C., Reimold, W.U., Shirey, S.B. and Le Roux,F.G., Kalkkop crater, Cape Province, South Africa: Confirmation of impact origin using osmium isotope systematics. Geochimica et Cosmochimica Acta, v. 58, pp. 1229-1234. 1994. |
Martini, J. E. J., Limestone and dolomite resources of the Republics of South Africa, Bophuthatswana, Ciskei, Transkei and Venda. Department of Mineral and Energy Affairs, Handbook 9, pp. 47. 1987. |
Reimold, W. U., Koeberl, Ch, Reddering., The 1992 drill core from the Kalkkop impact crater, Eastern Cape Province, South Africa: stratigraphy, petrography, geochemistry and age, Journal of African Earth Sciences, Vol. 26 (4), pp. 573-592. 1998. |
Reimold, W. U., Impact cratering - a review, with special reference to the economic importance of impacat structures and the southern African impact crater record. Earth, Moon and Planets, v. 70, pp. 21-45. 1995. |
Reimold, W. U., Le Roux, F.G., Koeberl, C. and Shirey,S.B., Kalkkop crater, eastern Cape - A new impact crater in South Africa (abstract). Lunar and Planetary Science XXIV, pp. 1197-1198. 1993. |
Reimold, W. U., Grieve, R.A.F. and Levin,G., Kalkkop crater in the eastern Cape - a good candidate for an impact structure (abstract). Lunar and Planetary Science XXIII, pp. 1141-1142. 1992. |
* 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) |