• Jan 25 2016
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The Red Desert (Therikkadu)

When we think of Indian deserts, we only think of the Thar. The Sindh and Punjab provinces of Pakistan and Rajasthan both contain portions of the Thar or Great Indian Desert. The majority of us might not be familiar with the small desert found in Tamil Nadu called Theri. It only exists in the. Tiruchendur, Thoothukudi district, and is made up of red sand dunes. They are composed of marine sediments that date back at least to the Quaternary Period.They have a relatively limited capacity for water and nutrient retention. The possibility of aerodynamic lift exists in the dunes. This is the force that causes things to go upward. The force that opposes weight is this one.The current Theri could have been produced by the local limitation of beach sand following sea regression. Sand grains moved and dunes accumulated as a result of the Western Ghats’ strong winds blowing east. The southwest monsoon winds that blow from May to September transport the red sand over the surface of a vast strip of red soil in the plains of the Nanguneri region, which is about 57 kilometers away in the Tirunelveli district. Wind erosion is said to be mostly caused by deforestation and a lack of vegetation in the Aralvaimozhi gap as well as the Nanguneri plains.