Formation of Limestone
Landforms
(Cambridge International AS and A Level Geography)
(Tropical Environments)
(For Syllabus 9696)
,Etchplain
They are produced in tropical or
subtropical environments as a result of
a phase of deep chemical weathering
during tectonic stability, followed by one
of erosion in which the weathered
debris is stripped away. It is therefore
an area of stripped/exposed
unweathered rock.
, Tower Karst
Towers originate as residual cones and
are then steepened by water table
undercutting from surround alluviated
plains. They are upstanding rounded
blocks of limestone in a region of low
relief which have steep sides.
Landforms
(Cambridge International AS and A Level Geography)
(Tropical Environments)
(For Syllabus 9696)
,Etchplain
They are produced in tropical or
subtropical environments as a result of
a phase of deep chemical weathering
during tectonic stability, followed by one
of erosion in which the weathered
debris is stripped away. It is therefore
an area of stripped/exposed
unweathered rock.
, Tower Karst
Towers originate as residual cones and
are then steepened by water table
undercutting from surround alluviated
plains. They are upstanding rounded
blocks of limestone in a region of low
relief which have steep sides.
