Formed by process links a formation to the natural force that carved or built it. Wikipedia records that "the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted," a combination of river cutting and uplift that produced the Grand Canyon. This dimension groups formations shaped by the same kind of natural process.
Facts
Comparison
Formation OriginA vent or fissure allowing hot lava, ash and gases to escape from a magma chamber below the surface. 1 Formed By (Process)
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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