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



Crater Name
Diameter (km)
Age (Ma)*
Target Rock**
Bolide Type***
N 49° 35'
E 32° 55'
169 ± 7


A. Schematic cross-section of the Obolon impact structure in the NW-SE direction (from Gurov et al., 2000): 1 - overlaying sediments; 2 - filling sediments; 3 - allogenous impact rocks; 4 - pre-impact sediments of the crater basement; 5 - rocks of the crystalline basement. B. Sections of the filling and allogenous rocks of Obolon impact structure in the boreholes Nos 6301 and 5302: 1 - clays, shales; 2 - sandstones; 3 - allogenous breccias; 4 - rocks of the crystalline basement

Cockell, C. S., Lee, P., The Biology of Impact Craters - a review. Biol. Rev., 77, P. 279 - 310. 2002.
Dabizha, A. I., Fel'dman, V. I., The geophysical properties of some astroblemes in the USSR (in Russian). Meteoritika, v. 40, pp. 91-101. 1982.
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.
Gurov, E. P., Gurova, E.P. and Rakitskaya,R.B., Impact diamonds in the craters of the Ukrainian shield (abstract). Meteoritics, v. 30, pp. 515-516. 1995.
Gurov, E. P., Ryabenko, V. A., Impact structures of the Ukrainian shield. International Geological Congress 27, Moscow, Field Guide Excursion 098, pp. 143-159. 1984.
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Gurov, E.P., and Gurova, E.P. Impact-melt composition of the Obolon Crater; chlorine as a possible indicator of the submarine crater formation. Meteoritics & Planetary Science, vol.30, pp.515. 1995.
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Masaitis, V. L., Mashchak, M.S., Raikhlin, A.I., Selivanovskaya, T.V., & Danilin,A., Meteorite craters and astroblemes in the USSR (in Russian). Doklady Akademii Nauk SSSR, v. 240, pp. 1191-1193. 1978.
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Val'ter, A. A., Gurov, E.P. and Ryabenko,V.A., The Obolon' fossil meteorite crater astrobleme on the northeast flank of the Ukrainian Shield (in Russian). Doklady Akademii Nauk SSSR, v. 232, pp. 170-173. 1977.
Val'ter, A. A., Ryabenko, V. A., Impact craters of the Ukrainian shield (in Russian). Izd-vo Naukova Dumka, Kiev, 154 p. 1977.
Westbroek, H., Stewart, R., The formation, morphology, and economic potential of meteorite impact craters, CREWES Research Report v. 8, p. 1-26. 1996.


* 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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