G: G g G. B. Airy gabbro gabion galena Galileo Galilei gamma ray Ganges River garnet Gary Ernst gas gas composition gas giant gasoline gazette gem gene geocentric geochronologist geodesy geodetic geodetic total station geodimeter geographic feature geologic activity geologic age geologic change geologic hazard geologic history geologic map geologic province geologic resource geologic structure geologic term geologic time geologic time scale geologic unit geological structure geologist geology geomorphic province geomorphology geophone geophysical process geophysical research geophysicist geophysics geopoetry geoprobe George Jefferson geotechnical geothermal geothite geyser giant clam giant yucca GIS glacial glacial advance glacial cycle glacial environment glacial flow glacial ice glacial ice volume glacial melt glacial polish glacial retreat glacial valley glaciation glacier Glacier Bay glacier cave glaciologist glass global climate change global cooling global model global positioning system global warming Glomar Challenger GLORIA glossary gneiss goal Gobi gold gold rush Gondwana gopher gorge GPR GPS grab graben gradient gradiometer grain composition grain shape grain size Grand Canyon granite Granite Mountains granitic granitic dome granitic rock granodiorite granulite graphite grassland gravel gravel pit gravimeter gravity gravity correction gray scale grazing Great Lakes Great Plains Greeks Greenhouse Effect Greenland Greenland Ice Core Program greenstone Greg Gable Grenville Province grid gridded grit ground deformation ground failure ground motion ground shaking ground sloth ground-penetrating radar groundwater groundwater monitoring well groundwater withdrawal growth ring grus Gulf of Aden Gulf of California Gulf of Mexico guyot gypsum
U.S. Department of the Interior | U.S. Geological Survey URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/G_keywords.html Page Contact: InfoBank staff Page Last Modified: Tue Dec 16 06:27:34 PST 2008 (wcs)