geologist

//Geologists, geochemists// and //geophysicists// conduct programs of exploration and research to extend knowledge of the structure, composition and processes of the earth and to locate and identify hydrocarbon, mineral and groundwater resources. They also plan and implement programs of hydrocarbon and mineral extraction, and they assess and mitigate the effects of development and waste disposal projects on the environment. They are employed by petroleum and mining companies, by consulting geology, geophysics and engineering firms, and by governments and educational institutions, or they may be self-employed.