Volcano Review

A wide, gently sloping volcano formed by flowing basaltic lava.

When volatiles or gaseous substances are added into the hot solid rocks.

Solid particles thrown out during volcanic eruptions are known as

Temperature stays the same but the pressure decreases.

A large underground pool of molten rock beneath the volcano where magma is stored.

Has high silica content, making it very thick and sticky.

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.

A small, steep volcano built from ash, cinders, and volcanic bombs.

Smaller openings on the sides of the volcano where magma and gases can also escape.

A volcano that has erupted within the last 10,000 years based on historical records or geological studies.

A large depression that forms when the top of the volcano collapses after a major eruption, often larger than the crater.

Slow cooling (deep underground) will result to what size of crystal?

When rocks is composed of different minerals, which cause it to melt

Formed under certain circumstances in special locations deep in the crust or in the upper mantle.

Lava mainly consists of ___ element.

The main passage through which magma travels from the magma chamber to the surface.

When a rock begins to melt, only certain minerals are melted.

Process by which minerals form and solidify as molten rock (magma) cools.

In volcanology, what one-word term denotes the explosive discharge of tephra, lava, and volcanic gases from a vent?

Melting caused by surrounding rocks caused by a very hot magma that brings additional heat.