Environmental Engineering Reference
In-Depth Information
Figure 2.16.
Microscopic views of the structure of (a) granite and (b) rhyolite.
-erosion;
- time;
- topography;
-groundwater.
The influence of each of these factors is discussed in the sections which follow. Although
the factors are discussed separately or in pairs, they usually all interact and influence the
development of weathered profiles. The terms used to describe weathered rocks are
defined in Section 2.8.
2.6.4.1
Climate and vegetation
Climate is the dominant factor. At one extreme, in a desert situation, chemical weathering
effects are usually almost negligible. Mechanical weathering effects may include opening
