GEOG 1400 Lecture Notes - Lecture 36: Abrasive Blasting, Grand Erg Oriental, Silt
Document Summary
Geog 1400 (jan. 19th: aeolian geomorphology (the work of the wind) (map) Major sand seas and dune fields in low latitude (after lancaster 1994) Tend to be around the subtropics or the latitudes between 25-35 degrees n or s. These are the zones where you tend to have the largest deserts. (image) Areas where there is large supplies of loose dry material at the surface. This limits the effectiveness of the wind action. Effective wind action in coastal areas, no obstacles. Equivalent to sandblasting : driven into the ground by their movement. Near the ground it creates a darker cloud. Has to be the right wind conditions. (image) Difficult conditions, nearly impossible to be outside. Sometimes can be carried over to continents to another continent. Volume of sand increases with wind speed. Wind speed is very significant when it become of. The impact transfer of energy, which facilitates the ground??? (look into recording).
