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Erra Matti Dibbalu Erra Matti Dibbalu is dissected and stabilized coastal red sediment mounds, located between Visakhapatnam and Bheemunipatnam in Andhra Pradesh. Formation: Formed around 12,000 years ago due to sea-land interaction. Comprises a mixture of sand (40-50%), silt and clay (another 50%) with oxidation imparting the unique red colour. Significance: They are geologically important as they represent the geological history of the late Quaternary period and carry the imprints of the fall of sea level and its subsequent rise, the impact of climate, monsoon and geological processes on the sediments. They are anthropologically and archeologically important as they possibly…
30 May, 2020
Land-form development