What is the name of the salt flat landscape feature that extends along the coastal margins of the UAE, formed by evaporation of saline groundwater in hyper-arid conditions?
Answer and explanation
Correct answer: D. Sabkha
- Step 1: Examine arid geomorphology: The supratidal coastal plains between Abu Dhabi and Qatar.
- Step 2: Coastal sabkhas are extensive evaporite salt flats characterized by halite, gypsum, and anhydrite crusts, serving as a globally studied modern analog for hydrocarbon source rocks.
Answer
Sabkha.
Why not the others: 'Erg' refers to a vast sand sea with shifting dunes; 'Wadi' is a dry river valley; 'Barchan' is a crescent-shaped sand dune.
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