Geology Reference
In-Depth Information
Climatic factors may play some part but the structure and condition (fresh, weathered) of the gran-
ite also influence the rate, as well as the type, of development.
9.2.
PLINTHS AND ASSOCIATED BLOCKS AND BOULDERS
9.2.1
Description
Plinths are low, smooth-topped projections that stand a few centimetres or tens of centimetres
above the level of the adjacent rock surface. They are commonly surmounted by a boulder or block
of rock (Figs 5.11 and
9.10)
.
Some occur on slopes of gentle or moderate inclination, but others
(a)
(b)
Figure 9.10.
Granite plinth, with boulder (a) on Domboshawa near Harare, Zimbabwe. (b) Low on eastern
flank of Ucontitchie Hill, Eyre Peninsula, South Australia.
