Figure 9.4: When iron rich minerals oxidize, they produce the familiar red color found in
rust. ( 8 )
surface becomes pitted and rough. When a less resistant mineral dissolves, more resistant
mineral grains are released from the rock.
Figure 9.5: Devil’s Tower is an amazing example of differential weathering. All that remains
of the volcano today is this central plug of resistant lava that forms the tower. ( 10 )
Most importantly, the climate of a region influences weathering. Climate is determined