Formation type sorts geological formations by the physical shape each one is, such as a canyon, a ridge or a plateau. Wikipedia describes the Grand Canyon as "a steep-sided canyon carved by the Colorado River in Arizona, United States," a specific type distinct from a mesa or a fault scarp. This grouping lets a visitor find every formation of one exact kind.
Facts
Comparison
Formation OriginA vent or fissure allowing hot lava, ash and gases to escape from a magma chamber below the surface. 1 Formation Type
Sources
1. Wikipedia: Volcano
WikipediaVolcano, lead sectionQuote, Volcano, lead section
A volcano is a vent or fissure in the crust of a planetary-mass object that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
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