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

 

Dobele

Crater Name
Location
Latitude
Longitude
Diameter (km)
Age (Ma)*
Exposed
Drilled
Target Rock**
Bolide Type***
Dobele
Latvia
N 56° 35'
E 23° 15'
4.5
290 ± 35
N
Y
S
-

 

References
A. Abels. J. Plado Lehtinen. 2002 The Impact Cratering Record of Fennoscandia - A Close Look at the DatabaseSpringer, Berlin, Federal Republic of Germany (DEU)
Masaitis, V.L. 1999 Impact structures of northeastern Eurasia: the territories of Russia and adjacent countries Meteoritics & Planetary Science, v. 34, p. 691-711

 

* 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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