A peripediment in a desert or semi-desert region is also known as :

A peripediment in a desert or semi-desert region is also known as :

Inselberg
Zeugen
Bajada
Playa
This question was previously asked in
UPSC CDS-1 – 2022
A peripediment in a desert or semi-desert region is also known as Bajada.
A peripediment is generally considered to be the gentle slope area at the base of a mountain or escarpment in arid and semi-arid regions. This area often comprises an erosional pediment closer to the mountain and a depositional bajada further out. While technically distinct (pediment is erosional, bajada is depositional), the term ‘peripediment’ is sometimes used more broadly to refer to this entire piedmont zone or specifically the region around the pediment, which is dominated by the bajada (coalesced alluvial fans). Among the given options, Bajada is the feature most closely associated geographically and morphologically with the peripediment region, forming the depositional part of the piedmont slope.
Inselbergs are isolated residual hills. Zeugen are features formed by differential wind erosion. Playas are dry lake beds. The piedmont slope in arid regions consists of the pediment (erosional bedrock surface) and the bajada (depositional apron of alluvial fans). While ‘peripediment’ might refer strictly to the marginal part of the pediment, its usage in some contexts refers to the broader area including the bajada. Given the options, Bajada is the most appropriate answer.
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