geochemist
/ˌdʒiːoʊˈkɛmɪst/
noun
- A scientist who studies the chemical composition of the Earth and other planets, and the chemical processes that affect rocks, minerals, and water.
- As a geochemist, she spends most of her time in the lab testing the chemical makeup of ancient rocks.
- The geochemist analyzed soil samples from the volcano to predict future eruptions.
- The team of geochemists discovered traces of rare metals in the ocean floor sediment.