"Profile of a dune, from back to front, showing its relation to the wind. The flow-lines of air are drawn above, with the eddy in front of the dune." -Gilbert, 1910

Dune and Wind

"Profile of a dune, from back to front, showing its relation to the wind. The flow-lines of air are…

Cross-section of a dune near Ostend, Belgium showing Eolian cross-bedding.

Dune with Eolian Cross-bedding

Cross-section of a dune near Ostend, Belgium showing Eolian cross-bedding.

Cross-section of a dune near Ostend, Belgium showing Eolian cross-bedding.

Dune with Eolian Cross-bedding

Cross-section of a dune near Ostend, Belgium showing Eolian cross-bedding.

A type of ripple mark in the Lop-Nor Desert in Turkestan.

Ripple Mark in Lop-Nor Desert, Turkestan

A type of ripple mark in the Lop-Nor Desert in Turkestan.

A type of ripple mark in the Lop-Nor Desert in Turkestan.

Ripple Mark in Lop-Nor Desert, Turkestan

A type of ripple mark in the Lop-Nor Desert in Turkestan.

A type of ripple mark in the Lop-Nor Desert in Turkestan.

Ripple Mark in Lop-Nor Desert, Turkestan

A type of ripple mark in the Lop-Nor Desert in Turkestan.

A type of ripple mark in the Lop-Nor Desert in Turkestan.

Ripple Mark in Lop-Nor Desert, Turkestan

A type of ripple mark in the Lop-Nor Desert in Turkestan.

A map drawing and drafting topography symbol illustrating sand dune.

Sand Dunes Relief or Terrain Topography Symbol

A map drawing and drafting topography symbol illustrating sand dune.