Kalba ejecta blanket is well preserved to N
 (and to E and S, not shown) but was eroded to the E
and then embayed by finely-layered, yardang-formign material
containing numerous river deposits.
White arrows show general trend of rivers.
Deposits of meander-belts encircle the Kalba rim, less than 1km from the rim.
Where the nothern meander belt crosses the distal rampart of Kalba ejecta,
it forms a negative-relief channel (inset).