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Gardnos
Crater Name |
Location |
Latitude |
Longitude |
Diameter (km) |
Age (Ma)* |
Exposed |
Drilled |
Target Rock** |
Bolide Type*** |
Gardnos |
Norway |
N 60° 39' |
E 9° 0' |
5 |
500 ± 10 |
Y |
Y |
C |
Chondrite |
geology map
References 1. Andersen, T., Burke, E. A. J., Methane inclusions in shocked quartz from the Gardnos impact breccia, South Norway. Eur. J. Mineral., v. 8, pp. 927-936. 1996. 2. Dons, J. A., Naterstad, J., The Gardnos impact structure, Norway (abstract). Meteoritics, 55th Annual Meeting, Meteoritical Society, Copenhagen, v. 215. 1992. 3. Dons, J. A., Naterstad, J., The Gardnos impact structure, Norway (abstract). Meteoritics, v. 27, pp. 215. 1992. 4. French, B. M., Koeberl, C., Gilmour, I., Shirey, S.B., Dons, J.A. and Naterstad,J., The Gradnos impact structure, Norway: Petrology and geochemistry of target rocks and impactites. Geochimica et Cosmochimica Acta, v. 61, pp. 873-904. 1997. 5. French, B. M., Koeberl, C., Gilmour, I., Shirey, S.B., Dons, J.A. and Naterstad,J., The Gardnos impact structure, Norway: Petrology and geochemistry of target rocks and impactites. Geochimica et Cosmochimica Acta, v. 61, pp. 873-904. 1997. 6. French, B. M., Koeberl, C., Gilmour, I., Shirey, S.B., Dons, J.A. and Naterstad,J., Petrology and geochemistry of target rocks and breccias from the Gardnos impact structure, Norway (abstract). Lunar and Planetary Science Conference XXVI. 1995. 7. French, B. M., Koeberl, C., Gilmour, I., Shirey, S.B., Dons, J.A. and Naterstad,J., Petrology and geochemistry of target rocks and breccias from the Gardnos impact structure, Norway (abstract). Lunar and Planetary Science XXVI, pp. 423-424. 1995. 8. Gilmour, I., French, B.M., Franchi, I.A., Abbott, J.I., Hough, R.M., Newton, J., Koeberl,C., Geochemistry of carbonaceous impactites from the Gardnos impact structure, Norway, Geochimica Acta, Vol 67. No. 20. P 3889 - 3903. 2003. 9. Grier, J. A., Swindle, T.D., Kring,D.A.and H.J.Melosh., Argon-40/argon-39 analyses of samples from the Gardnos impact structure, Norway, Meteoritics and Planetary Science, v 34 p 803-807. 1999. 10. Grier, J. A., Swindle, T.D., Kring, D.A. and Melosh,H.J., Investigation of the Gardnos impact structure: Argon-40/Argon-39 results (abstract). Meteoritics, v. 30, pp. 513-514. 1995. 11. Henkel, H., Pesonen, L. J., Impact craters and craterform structures in Fennoscandia. Tectonophysics, v. 216, pp. 31-40. 1992. 12. Naterstad, J., Dons, J. A., The Gardnos impact structure, Hallingdal, Norway (abstract). "Impact Cratering and Evolution of Planet Earth", First International Workshop, Nordlingen, Germany, April 28-May 2. 1993. 13. Pesonen, L. J., Marcos, N. and Pipping,F., Palaeomagnetism of the Lappajarvi impact structure, western Finland. Tectonophysics, 216, pp. 123-142. 1992. 14. Vishnevsky, S. A., Raitala, J., Native iron, wustite and magnetite in impactites of Janisjarvi and Gardnos craters (the Baltic Shield), 66th Annual Meteoritical Society Meeting. 2003. 15. Wolbach, W. S., French, B. M., Widicus., Carbon- Bearing Impactites from the Gardnos Impact Structure, Norway: No Evidence for Soot, LPSC XXX, Lunar and Planetary Institute, Houston, TX, Abstr. 1043 (CD-ROM). 1999.
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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 - Metasedimetary 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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