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Phreatic eruption (explosion)
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An explosive volcanic eruption caused when water and heated volcanic rocks interact to produce a violent expulsion of steam and pulverized rocks. magma is not involved.
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Pulverized, английский
Pulverizada
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Norite, английский
- An igneous rock with mafic composition.
- Plutonic rock with composition as gabbro, except for rhombic instead
Horizontal blast, английский
An explosive eruption in which the resultant cloud of hot ash and other material moves laterally rather than upward.
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