Information AboutSpheroidal Weathering |
| CATEGORIES ABOUT SPHEROIDAL WEATHERING | |
| geology | |
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Spheroidal weathering occurs whenever a mass of rock (most typically crystals expand about 5%, and Acid ic water attacks the Feldspar minerals, turning them into Clay . Thus the corners become rounded, because angular edges provide more than one area of attack by exposing a greater amount of surface area. Edges and especially corners of an angular block weather faster than flatter surfaces. The ultimate result of this process is a rounded bolder or a Dome d monolith such as the rounded back of Half Dome in Yosemite National Park . The process of spheroidal weathering is slower than other common types of weathering such as Frost Wedging , and it becomes lower still at progressively lower temperatures which slow down the chemical process of feldspar breakdown. Thus many granitic mountain peaks are jagged and Crag gey instead of rounded. ''See also:'' Exfoliation (geology) , a related form of weatherng that also creates domes. REFERENCE
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