Cross-sectional anatomy of a crater

Cross-sectional anatomy of a crater

Fig. 2.20 . An impacting meteorite excavates a circular crater that is almost 40 times the diameter of the meteorite. The depth of the crater is roughly one-tenth its diameter, and the crater floor is depressed below the surrounding terrain. The explosion gauges out a circular hole, depositing material around its rim and ejecting debris outward in the radial direction. The surface rebounds from the impacting force of a large meteorite, creating a central peak in the floor of the biggest craters.

Copyright 2010, Professor Kenneth R. Lang, Tufts University