Definitions, Characteristics, Composition, Movement and The Differences Between Magma and Lava

UNGKIT.COM – Magma and lava are terms used in volcanology and geology to describe hot, molten rock; however, the two are distinguished by their location.

Magma is a naturally occurring, extremely hot, incandescent silicate melt or fluid located within the Earth's crust. Magma is characterized by high temperatures, ranging from 700°C to 1,300°C or higher.

Its composition consists of molten or semi-molten rock, solid minerals, and dissolved gases such as water vapor, carbon dioxide, and sulfur.

Magma is mobile—meaning it moves easily—because its density is lower than that of the surrounding solid rock.

Lava, on the other hand, is molten rock or incandescent magma that emerges and flows onto the Earth's surface through volcanic craters or fault fissures.

Lava is characterized by extreme heat, with temperatures ranging from 700 to 1,300 degrees Celsius. It appears as an incandescent fluid that glows red while hot, eventually cooling and hardening into igneous rock.

The difference between magma and lava lies in their location: magma is the incandescent fluid still contained within the Earth's interior or beneath the surface, whereas lava is magma that has successfully emerged and flows across the Earth's surface following a volcanic eruption. (*)

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