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A wide, gently sloping volcano formed by flowing basaltic lava.
Shield Volcano
A large depression that forms when the top of the volcano collapses after a major eruption, often larger than the crater.
Caldera
The main passage through which magma travels from the magma chamber to the surface.
Conduit
When a rock begins to melt, only certain minerals are melted.
Partial Melting
Formed under certain circumstances in special locations deep in the crust or in the upper mantle.
Magma
Temperature stays the same but the pressure decreases.
Decomposing Melting
When rocks is composed of different minerals, which cause it to melt
Eutectic Temperature
Slow cooling (deep underground) will result to what size of crystal?
Large Crystals
In volcanology, what one-word term denotes the explosive discharge of tephra, lava, and volcanic gases from a vent?
Eruption
Has high silica content, making it very thick and sticky.
Granitic Magma
Solid particles thrown out during volcanic eruptions are known as
Pyroclasts
A large underground pool of molten rock beneath the volcano where magma is stored.
Magma Chamber
Smaller openings on the sides of the volcano where magma and gases can also escape.
Secondary Vent
A small, steep volcano built from ash, cinders, and volcanic bombs.
Cinder Cone Volcano
A volcano that has erupted within the last 10,000 years based on historical records or geological studies.
Active Volcano
A volcano that has not erupted for tens of thousands of years and is not expected to erupt again. Often heavily eroded or has no magma supply left.
Extinct Volcano
