Geological record and reconstruction of the late Pliocene impact of the Eltanin asteroid in the Southern Ocean

R. Gersonde (), F. T. Kyte, U. Bleil, B Diekmann, J. A. Flores, K. Gohl, G. Grahl, R. Hagen, G. Kuhn, F. J. Sierro, D. Völker, A Abelmann and J. A. Bostwick
Additional contact information
R. Gersonde: Alfred Wegener Institute for Polar and Marine Research
F. T. Kyte: Institute of Geophysics and Planetary Physics, UCLA
U. Bleil: Fachbereich Geowissenschaften, University Bremen
B Diekmann: Alfred Wegener Institute for Polar and Marine Research
J. A. Flores: University of Salamanca
K. Gohl: Macquarie University, School of Earth Sciences
G. Grahl: Fachbereich Geowissenschaften, University Bremen
R. Hagen: Naval Research Lab.-Code 7420
G. Kuhn: Alfred Wegener Institute for Polar and Marine Research
F. J. Sierro: University of Salamanca
D. Völker: Fachbereich Geowissenschaften, University Bremen
A Abelmann: Alfred Wegener Institute for Polar and Marine Research
J. A. Bostwick: Institute of Geophysics and Planetary Physics, UCLA

Nature, 1997, vol. 390, issue 6658, 357-363

Abstract: Abstract In 1995, an expedition on board the research vessel FS Polarstern explored the impact site of the Eltanin asteroid in the Southern Ocean, the only known asteroidimpact into a deep ocean basin. Analyses of the geological record of the impact region place the event in the late Pliocene (∼2.15 Myr) and constrain thesize of the asteroid to be >1 km. The explosive force inferred for this event places it at the threshold of impacts believed to have global consequences, and its studyshould therefore provide a baseline for the reconstruction and modelling of similar events, which are common on geological timescales.

Date: 1997
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DOI: 10.1038/37044

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