noun
- plural of magma; molten rock material beneath or within the earth’s crust from which igneous rock results by cooling
Usage: geological term
Examples
- Different types of magmas produce different kinds of volcanic eruptions.
- The geologist studied various magmas to understand their mineral compositions.
- Basaltic and granitic magmas have distinct chemical properties.
- Underground magmas can remain molten for thousands of years.
- The laboratory analyzed samples from several ancient magmas.
- Cooling magmas form igneous rocks like granite and obsidian.