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

oil geologist, petroleum geologist - a specialist in petroleum geology

man of science, scientist - a person with advanced knowledge of one of more sciences

Arthur Holmes, Holmes - English geologist and supporter of the theory of continental drift (1890-1965)

James Hutton, Hutton - Scottish geologist who described the processes that have shaped the surface of the earth (1726-1797)

Gideon Algernon Mantell, Mantell - English geologist remembered as the first person to recognize that dinosaurs were reptiles (1790-1852)

Henry Rowe Schoolcraft, Schoolcraft - United States geologist and ethnologist and explorer who discovered the source of the Mississippi River (1793-1864)