Word Noun
abyssolith
n.
C2 Proficiency abyssolith
Definition
n.a type of rock that forms when magma cools very slowly deep inside the Earth. It is usually dark and has a smooth, glassy surface.
n.a rock formed by the slow cooling of magma at great depths within the Earth's crust. Characterised by a fine-grained or glassy texture and typically dark in colour.
Examples
“The geologist identified the sample as an abyssolith.”
“The deep-sea volcanic vents produced an abyssolith that remained hidden from the surface for millions of years.”
“Unlike extrusive igneous rocks that cool rapidly on the surface, abyssoliths exhibit a homogeneous structure due to the immense pressure and slow crystallisation process occurring kilometers below the Earth's crust.”
This entry
Level C2 · Proficiency
Frequency Rare
Updated