Geologic (adjective)

1. Of or relating to geology; concerned with the study of the physical structure and substance of the earth.
2. Of or relating to the history of the earth, especially as recorded in rocks.

Origin:

Late 18th century, from french géologique, or via late latin geologicus, from greek geōlogikos, from geō- "earth" + -logikos (from logos "speech, stud.y")

Examples:

1. The geologic features of the area are unique and attract many scientists.
2. This area is renowned for its rich geologic history, with many valuable minerals being discovered.
3. The geologic evidence suggests that this region was once underwater.
4. Geologic time is divided into periods, eras and eons based on the Earth's history.
5. Geologic processes like earthquakes, volcanic eruptions and plate tectonics shape the Earth's surface.