Glover Bluff
Crater Name | Location | Latitude | Longitude | Diameter (km) | Age (Ma) | Exposed | Drilled | Target Rock** | Bolide Type*** |
---|---|---|---|---|---|---|---|---|---|
Glover Bluff | Wisconsin, U.S.A. | N 43° 58' | W 89° 32' | 8 | < 500 | Y | Y | S | - |
Topographic Map
References |
Cannon, W. F., Mudrey, M. G. Jr., The potential for diamond-bearing kimberlite in Northern Michigan and Wisconsin. U.S. Geological Survey Circular 842, 15 p. 1981. |
Cockell, C. S., Lee, P., The Biology of Impact Craters - a review. Biol. Rev., 77, P. 279 - 310. 2002. |
Dietz, R. S., McHone, J. F., Astroblemes recently confirmed with shatter cones (abstract). Meteoritics, v. 26, p. 332. 1991. |
Ekern, G. L., Thwaites, F., The Glover Bluff structure, a disturbed area in the Paleozoics of Wisconsin. Wisconsin Academy of Sciences, Transactions, v. 25, pp. 89-97. 1930. |
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. |
Koenen, K. H., Geophysical studies in south central Wisconsin. Unpublished Master's Thesis, University of Wisconsin, Madison, 44 p. 1956. |
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. |
Read, W. F., Impact bombs in Middle Ordovician marine sediments of southeastern Wisconsin (abstract). Lunar and Planetary Science XVI, pp. 687-688. 1985. |
Read, W. F., The circular structure at Glover Bluff: What and where it is (abstract). Meteoritics, v. 19, pp. 295-296. 1984. |
Read, W. F., Shatter cones at Glover Bluff, Wisconsin. Meteoritics, v. 18, pp. 241-243. 1983. |
* 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) |