a geologist who uses physical principles to study the properties of the earth

a scientist who uses instruments to measure the properties of the earth

a person who studies some part of the Earth and its systems.

A scientist who studies the movements of the earth and its environment, including within fields such as meteorology, oceanography, and seismology.

A person trained in the study and application of certain physical principles - magnetic, electrical, gravity and the progression and velocity of sound waves - to the study of geology.

A scientist who studies the physics of the earth, to include earthquakes, volcanoes, geomagnetism, and the forces that deform the earth's crust and mantle.