One of these structures, Ol Doinyo Lengai, produces natrocarbonatite.
One of these structures, Ol Doinyo Lengai, produces natrocarbonatite. A tuya is an example of the subglacial type of these structures, which can produce jokulhlaups [yo-kul-h-loips]. These structures are responsible for the formation of cryptodomes, and they can also produce pahoehoe [puh-HOH-ee-hoh-ee] or aa [AH-ah]. The collapse of their center forms a caldera, and many of them are found around the Ring of Fire. For 10 points, name these openings in the Earth's crust through which lava is ejected, examples of which include Vesuvius and Krakatoa.
One of these structures, Ol Doinyo Lengai, produces natrocarbonatite.
volcanoes