Cross-sectional anatomy of a crater

Cross-sectional anatomy of a crater

. 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 radially outward in all directions. 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