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Bonhardt - Steep isolated round topped mass of rock rising steeply from desert surface.
o Dissection of plateau by streams producing steep sided valleys.
o The plateau is further eroded forming remnant hills e.g. Sugar Loaf Mountain in Rio de Janeiro in Brazil.
Castle kopje – Residual rocks in a desert found in groups.
o Formed from break down of Bonhardt with closely spaced joints.
o Or deep withering of a plateau edges.
o Weathered rocks are then removed by water reducing plateau into Inselbergs e.g. Nzambani rock in Kitui.
Kavungya answered the question on May 3, 2019 at 13:45
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