Depression (geology)
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In geology, a depression is a landform sunken or depressed below the surrounding area. Depressions form by various mechanisms.
A watering hole is a natural depression where water collects and animals (such as these impala) come to drink.
A karstic closed depression with the permanent lake Stymfalia, in Peloponnese, Greece. Seasonal abundant precipitation is drained by three sinkholes.
Qattara Depression
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The Qattara Depression is a depression in northwestern Egypt, specifically in the Matruh Governorate. The depression is part of the Western Desert of Egypt.
Depression (geology)
…Mourdi Depression Qattara Depression Regen Depression…
View of the Qattara Depression
Sand dunes in the Qattara Depression
Northwestern escarpment edge of the Qattara Depression; left: the El Diffa Plateau