IELTS Academic을 위한 어휘 (점수 5) - Geology

a solid material forming part of the earth's surface, often made of one or more minerals

a solid, naturally occurring substance with a specific chemical composition, typically found in the earth's crust, such as gold, copper, etc.

the central part of Earth, or any other planet

the black or brownish substance consisted of organic remains, rock particles, and clay that forms the upper layer of earth where trees or other plants grow

a complete change in the form and structure of a rock as a result of heat and pressure

the preserved remains or traces of ancient plants, animals, or other organisms found in rock