Figure 18.5
A ventifact. This sandstone ventifact, about 3 m (10 ft) high, in northern Chad has been pitted and scoured by many sandstorms.(© Sinclair Stammers/Science Source)
Figure 18.5
A ventifact. This sandstone ventifact, about 3 m (10 ft) high, in northern Chad has been pitted and scoured by many sandstorms.