sábado, 6 de diciembre de 2014

MODELING DESERT

These are areas with low amount of rainfall, areas where water is not available.

The predominant agent is the wind, the dominant process is the erosion.

Sebkha: salt lakes with large areas that are completely horizontal.



Tafones: have chemical and mechanical origin, substances react with pollutants and diluted.



Guadies: valleys where water for desert (when it rains)



Mountain island: steep hill slopes and rounded top, usually granite or gneiss, which appears isolated or forming a group that rises above the general level of motion.



Yardans: structures in the desert resistant to erosion



Barjanes: dunes crescent



Mushroom rocks: are formed by erosion caused by wind and sand.



Tipos de desierto

Rocky: the intensity of the air is very high, so that only leaves without eroding the heavier materials.
Stony: the intensity of the air is lower.
Sandy: the air hasn´t got intensity.





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