desert landforms buttesmesasarchesoasesdunespillars © karen devine 2010
TRANSCRIPT
Desert Desert LandformsLandforms
ButtesButtesMesasMesasArchesArchesOasesOasesDunesDunesPillarsPillars
© Karen Devine 2010
ButteButte
• A landform which resembles a castle.
• It is an eroded remnant of a mesa.
© Karen Devine 2010
MesaMesa
•A flat topped or plateau –like landform with steep sides.
© Karen Devine 2010
Desert ArchDesert Arch
•An opening in a rock face which is created by relentless erosion.
© Karen Devine 2010
OasisOasis
• Oases are fertile areas which contain water from bores, the water table or other underground sources.
© Karen Devine 2010
Sand DunesSand Dunes• Sand dunes are
formed by winds blowing across sandy plains.
• When the sandy winds hit a solid object, the sand within is dropped to ultimately form a dune.
© Karen Devine 2010
Types of Sand DunesTypes of Sand Dunes
• The types of dunes include:
a)Barchan dunesb)Star dunesc)Longitudinal dunes.d)Crescent dunese)Linear dunesf)Dome dunesg)Parabolic dunes
What type of dune is this?© Karen Devine 2010
PillarsPillars
•Steep, chimney shaped rock formations which are produced by swirling sand-bearing winds.
© Karen Devine 2010
Question Time?Question Time?
• Make drawings of all the different types of dunes mentioned in slide 7.
© Karen Devine 2010