GEOG 111 Lecture Notes - Lecture 12: Outwash Plain, Semi-Arid Climate, Barchan

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7 Apr 2017
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Geog 111 - lectures twenty three and twenty four - 11/11 + 11/14. Yardang, sculpted rock formation via wind and see the direction in which the wind is blowing. Sand dunes, evidence that wind is pushing accumulations of sand across the surface, layers within it of previous slipfaces, pushes up the windward/stoss slope then falls down the slipface. There are different shapes that dunes can take depending on shifts in wind direction and such. Loess landscapes are produced when tons of finely ground up material from the last glacial periods are picked up and deposited by strong winds, are actually great for growing things in. Have a very high binding strength can be cut and retain its form so houses are built in it in developing parts of the world. Deserts cover about 26% of land surface area, mainly concentrated in areas of subtropical high pressure systems (includes arid regions)

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