Identifying a desert landform I saw this landform on Google Earth on the border of Algeria/Tunisia/Libya and wondered what it is called (so that I can read up on it and find out how it forms - I am not a geologist):



Here is a 3D view: (Press Ctrl + drag left mouse button to rotate)



Does anyone know what kind of landform this is?
Star dunes, caused by the prevailing winds coming from multiple directions. 

Take a look at these different dune types.