June 2015

Wadis,Bahadas and the Desert Piedmont zone

By |2022-09-15T12:44:11+02:00June 15th, 2015|Hot Deserts, Notes, O Level Geography, Ordinary Level Notes|

Alluvial fan/Bajada/Bahada. Image credit MediaWiki

Alluvial fan/Bajada/Bahada. Image credit MediaWiki ZIMSEC O Level Geography Notes: Wadis and Bahadas

Wadis/Canyons

  • As already pointed out freak storms occur in deserts characterised by excessive precipitation over short periods of time.
  • Due to infiltration excess flow and even saturation excess flow there is significant run off in the […]

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Mesa and Butte

By |2022-09-15T12:44:12+02:00June 15th, 2015|Hot Deserts, Notes, O Level Geography, Ordinary Level Notes|

Messa (left) and Butte (right). Image credit channingchurch.com

Messa (left) and Butte (right). Image credit channingchurch.com ZIMSEC O Level Geography Notes: Mesa and Butte
  • Mesas and buttes are flat topped uplands with steep sides and often capped by hard resistant rocks.
  • Mesas and buttes are desert features created primarily by river erosion […]

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