Beaverhead
Crater Name
|
Location
|
Latitude
|
Longitude
|
Diameter (km)
|
Age (Ma)*
|
Exposed
|
Drilled
|
Target Rock**
|
Bolide Type***
|
Beaverhead
|
Montana, U.S.A.
|
N 44° 36'
|
W 113° 0'
|
60
|
~ 600
|
Y
|
N
|
M
|
-
|
Bouguer gravity map of region surrounding the proposed
thrust detached root to the Beaverhead structure, East Idaho.
References
|
Carr, J., Link, P.K., Geslin, J.K., McCafferty, A., Hargraves,R.B., Sedimentary Breccia Deposited within Eocambrian Beaverhead Impact Crater, Lost River Range, Idaho, GSA Abstracts with Programs, 1996, Session 92. P. 230. 1996.
|
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.
|
Fiske, P. S., The preservation of impact features in orogenic belts: The case of the Beaverhead structure, SW Montana (abstract). 1993 Fall Meeting, AGU, v. Fall, p. 387. 1993.
|
Fiske, P. S., Hargraves, R.B., Onstott, T.C., Kkoeberl, C. and Hougen,S.B., Pseudotachylites of the Breaverhead impact structure: Geochemical, geochronological, petrographic, and field investigations. Geological Society of America Special Paper 293, pp. 163-176. 1994.
|
Fiske, P. S., Hougen, S.B. and Hargraves,R.B., Breccia dikes from the Beaverhead impact structure, southwest Montana (abstract). International Conference on Large Meteorite Impacts and Planetary Evolution, LPI Contribution No. 790, pp. 26. 1992.
|
Glikson, A. Y., Mega-impacts and mantle-melting episodes: tests of possible correlations. AGSO Journal of Australian Geology & Geophysics, v. 16, pp. 587-607. 1996.
|
Hargraves, R. B., Christiansen, P P., Cullicott, C E., Deffeyes, K S., Fiske, P S. and Hougen,S., Shatter cones and shocked rocks in southwestern Montana: The Beaverhead impact structure. Geology, v. 18, pp. 832-834. 1990.
|
Hargraves, R. B., White, J. C., Micro-Shock deformation adjacent to the surface of shatter cones from the Beaverhead Impact Structure, Montana, The Journal of Geology, v. 104, p. 233-238. 1996.
|
Hargraves, R. B., Kellogg, K.S., Fiske, P.S. and Hougen,S.B., Allochthonous impact-shocked rocks and superimposed deformations at the Beaverhead site in southwest Montana. Geological Society of America Special Paper 293, pp. 225-235. 1994.
|
Hargraves, R. B., Where's the Beaverhead beef? (abstract). International Conference on Large Meteorite Impacts and Planetary Evolution, LPI Contribution No. 790, pp. 35-36. 1992.
|
Kellogg, K. S., Snee, L. W. , Unruh, D. M., The Mesoproterozoic Beaverhead Impact Structure and Its Tectonic Setting, Montana-Idaho: 40Ar/ 39Ar and U-Pb Isotopic Constraints. The Journal of Geology, Vol. 111, P. 639 - 652. 2003.
|
Koeberl, C., Fiske, P. S., Beaverhead impact structure, Montana: Geochemistry of impactites and country rock samples (abstract). Meteoritics, v. 26, pp. 358-359. 1991.
|
Koeberl, C., Fiske, P. S., Beaverhead impact structure, Montana: Geochemistry of impactites and country rock samples (abstract). Meteoritics, v. 26, pp. 358-359. 1991.
|
Lee, P., Kay, R. W., Search for a meteoritic component at the Beaverhead impact structure, Montana (abstract). International Conference on Large Meteorite Impacts and Planetary Evolution, LPI Contribution No. 790, pp. 47. 1992.
|
McCafferty, A. E., Assessing the presence of a buried meteor impact crater using geophysical data, south-central Idaho (abstract). Thesis, Colorado School of Mines. 1995.
|
McCafferty, A. E., Hargraves, R B., Roddy, D J. and Kellogg,K S., Does the root of the Beaverhead impact structure have a geophysical
|
|
