지구의 물리적 구조, 물질 및 역사를 연구하는 지질학에 관한 것.
Relating to the study of the Earth's physical structure, substance, and history, especially as recorded in rocks.
예문:
"The Grand Canyon reveals millions of years of geologic history through its layered rock formations."
"Scientists use geologic data to predict potential earthquake zones and volcanic activity."
"The region's unique geologic features attract researchers from all over the world."