{"thcode":61,"term":{"code":711,"name":"geology","parent":639,"scope":"the study of the Earth's structure, composition, past and present processes, and history."},"uf":[],"bt":[{"code":639,"name":"discipline","parent":1,"scope":null},{"code":1,"name":"Marine Realms Information Bank (MRIB) keyword categories","parent":null,"scope":null}],"nt":[{"code":712,"name":"economic geology","parent":711,"scope":"studies of the origin and distribution of metallic, nonmetallic, and energy resources."},{"code":714,"name":"engineering geology","parent":711,"scope":"the application of geologic principles to problems in civil engineering."},{"code":715,"name":"environmental geology","parent":711,"scope":"the application of geologic principles to environmental problems."},{"code":716,"name":"geomorphology","parent":711,"scope":"the study of landforms and their evolution."},{"code":717,"name":"historical geology","parent":711,"scope":"the study of earth history, generally focusing on changes at the Earth's surface."},{"code":718,"name":"hydrogeology","parent":711,"scope":"the study of geologic controls on groundwater distribution and movement."},{"code":719,"name":"marine geology","parent":711,"scope":"used for geological and related studies of ocean basins and margins."},{"code":720,"name":"mineralogy","parent":711,"scope":"the study of the chemistry, crystalline structure, and physical properties of minerals."},{"code":721,"name":"paleontology","parent":711,"scope":"the study of ancient life and evolutionary history from a geological perspective."},{"code":724,"name":"petrology","parent":711,"scope":"the study of the composition, structure, and origin of rocks."},{"code":725,"name":"planetary geology","parent":711,"scope":"the application of geologic principles to the study of planetary bodies."},{"code":726,"name":"sedimentology","parent":711,"scope":"the study of sediments, sedimentary processes, and the origin of sedimentary rocks."},{"code":727,"name":"soil science","parent":711,"scope":"the study of soils and soil-forming processes"},{"code":728,"name":"stratigraphy","parent":711,"scope":"the study of layered sedimentary and volcanic rocks."},{"code":730,"name":"structural geology","parent":711,"scope":"the study of the structural features of rock units, usually to establish their deformational histories."},{"code":731,"name":"tectonics","parent":711,"scope":"the study of the nature and origin of the broad structural features of the Earth's crust."},{"code":733,"name":"volcanology","parent":711,"scope":"the study of volcanoes and their eruptive products."}],"rt":[{"code":428,"name":"geologic mapping","parent":427,"scope":"the collection and synthesis of field observations to determine the distribution, structure, and age of earth materials in a study area."}]}