 The Canning Dam Catchment lies within the Darling Scarp which forms part of an Archaean Shield composed largely of granite with some invaded linear belts of metamorphosed sedimentary and volcanic rocks . 
 The Canning Dam Catchment <a href='uninflect' title='1'><mark>lies</mark></a> within the Darling Scarp which <a href='uninflect' title='2'><mark>forms</mark></a> part of an Archaean Shield composed largely of granite with some invaded linear belts of metamorphosed sedimentary and volcanic rocks . 
Da Canning Dam Catchment lie within the Darling Scarp which form part of an Archaean Shield composed largely of granite with sum invaded linear belts of metamorphosed sedimentary and volcanic rocks .