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

 

Logancha

Crater Name
Location
Latitude
Longitude
Diameter (km)
Age (Ma)*
Exposed
Drilled
Target Rock**
Bolide Type***
Logancha
Russia
N 65° 31'
E 95° 56'
20
40 ± 20
N
N
M
-

 

***

References
Dietz, R. S., McHone, J. F., Astroblemes recently confirmed with shatter cones (abstract). Meteoritics, v. 26, p. 332. 1991.
Fel'dman, V. I., Mironov, Yu.V., Melikhov, B.A., Ivanov, B.A. and Basilevsky,A.T., Astroblemes on trap rock: Structural features and differences from impact structures on other targets (in Russian). Meteoritika, v. 44, pp. 139-145. 1985.
Fel'dman, V. I., Sazonova, L.V., Mironor, Yu.V. and Kapusthina,I.G., Circular structure Logancha as possible meteorite crater in basalts of the Tunguska syneclise (abstract). Lunar and Planetary Science XIV, pp. 191-192. 1983.
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.
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.
Masaitis, V. L., Structural and compositional heterogeneities of the Earth's crust caused by impact cratering (in Russian). Nedra, Leningrad, v. 10, pp. 320-326. 1991.
Mironov, Yu V., Fel'dman, V. I., Criteria for distinguishing cosmogenic and endogenous circular paleostructures in basalt (in Russian). Vestnik Moskovskogo Universiteta, Geologiya, v. 42, pp. 49-56. 1987.
Mironov, Yu V., Low pressure impact breccias from basalts of Logancha astrobleme (in Russian). XX All-Union Meteorite Conference, Tallinn, pp. 41-43. 1987.
Mironov, Yu V., Ladygin, V.M., Pchelintseva, N.F., Kuz'min, N.R. and Ryakhovskiy,V.M., Low pressure impact breccias from basalts of Logancha astroblem (abstract). XX All-Union Meteorite Conference, pp. 30-32. 1987.
Mironov, Yu V., Shock metamorphism peculiarities in unhomogeneous basaltic targets (abstract). Lunar and Planetary Science XVI, pp. 559-560. 1985.
Vishevsky, S. A., Shock metamorphism of basic rocks as exemplified by the Logancha astrobleme (in Russian). Geologiya i Geofizika, v. 27, pp. 70-79. 1986.
Vishevsky, S. A., The Logancha astrobleme in the trap rock of the Tunguska synclise (in Russian). Akademii Nauk SSSR, pp. 1-28. 1984.

 

* 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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