El Chich�n is a complex of domes with a tuff ring, made of ejected volcanic material, located between the Trans-Mexican Volcanic Belt and the Central America Volcanic Arc.
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The field contains many maar craters, generated by eruptions where the magma encountered water, and a series of explosive eruptions produced a large crater, surrounded by a tuff ring.
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A lava flow burst forth from the northwestern base of the cone and flowed north down the valley west of Orakei Basin tuff ring and out into what is now Hobson Bay.
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"' Nu'utele "'is an island which consists of a volcanic tuff ring situated 1.3 km off the eastern end of Upolu island, Samoa.
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Located in the central suburb of Grafton, the park contains all of the explosion crater and most of the surrounding tuff ring of the "'Pukekawa "'volcano.
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Tank Farm is mostly in its natural state, though some parts of the tuff ring were quarried and its name stems from the petrochemicals storage tanks located here during World War II.
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The Caldeira Comprida tuff ring in Caldeira Seca ( west-central Flores ) later, at about 2900 years ago, producing a lava flow that traveled towards the region of Faj?Grande.
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The Santa Cecilia domes of Jotabeche were active 24.3 ?0.7 mya and 24.1 ?0.8 mya based on potassium-argon dating of an eroded tuff ring.
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Both tuff cones and their associated tuff rings were created by explosive eruptions from a vent where the magma is interacting with either groundwater or a shallow body of water as found within a lake or sea.
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After these major eruptions, Paektu Mountain had at least 3 smaller eruptions, which occurred in 1668, 1702, and 1903, likely forming the Baguamiao ignimbrite, the Wuhaojie fine pumice and the Liuhaojie tuff ring.
