Geomechanical models of impact cratering: Puchezh-Katunki structure

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Abstract
A deep drill hole in the central mound of the Puchezh-Katunki impact structure, Russia, was finished last year. In this paper, an interpretation of the drilling data is presented using a simplified numerical two-dimensional simulation to outline the main processes of crater formation, including those that need to be investigated more thoroughly in the future. The observed shock pressure gradient in the drill core is consistent with the scaling-law predictions of the initial model impact parameters.

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