extrusive rock

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Tanna Island, Vanuatu: volcanic rock

Figure 25: Cross section of a convergent plate boundary involving a collision between two continental plates near a Himalaya-type mountain chain.

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extrusive rock: Facts & Related Content

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Facts

Also Known As	extrusive igneous rock • volcanic rock

Photos

Tanna Island, Vanuatu: volcanic rock

Figure 25: Cross section of a convergent plate boundary involving a collision between two continental plates near a Himalaya-type mountain chain.

See All Images →

Topics

pumice basalt perlite obsidian trachyte rhyolite phonolite andesite diabase pitchstone intrusive rock felsic and mafic rocks pegmatite spherulite micropegmatite alkaline rock colour index dike sill laccolith

Quiz

Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.

(Bed) Rocks and (Flint) Stones