Erg - Types of Sand Deserts

The Grand Erg Occidental

http://en.wikipedia.org/wiki/Grand_Erg_Occidental

http://en.wikipedia.org/wiki/Grand_Erg_Oriental

http://en.wikipedia.org/wiki/Category:Ergs

http://en.wikipedia.org/wiki/Septentrional (Boreal) (Northern)

http://en.wikipedia.org/wiki/Meridional (Austral) (Southern)

http://en.wikipedia.org/wiki/Oriental (Eastern)

http://en.wikipedia.org/wiki/Desert
http://en.wikipedia.org/wiki/Oasis
http://en.wikipedia.org/wiki/Ecosystem
http://en.wikipedia.org/wiki/Geomorphology
http://en.wikipedia.org/wiki/Category:Sedimentology
http://en.wikipedia.org/wiki/Earth_science

Types of Sand Deserts

Zibar – slightly rolling sandy country, which may extend over considerable distances usually less than 100 feet in elevation.

Barchans – crescentic sand dunes

Sand Seas – vast expanses of sand with very complex pattern resulting form frequent shifting of the winds

Uruq (veins) or Suyuf (swords) – long narrow sand dunes or lines of sand dunes

Sand Mountains – pyramid dunes

Sand Sheets – vast area of sand that is level and smooth

http://en.wikipedia.org/wiki/Barchans

http://en.wikipedia.org/wiki/Erg_(landform
http://en.wikipedia.org/wiki/Hamada
http://en.wikipedia.org/wiki/Aeolian_processes