{"thcode":2,"term":{"code":799,"name":"energy resources","parent":777,"scope":"Natural resources that are used for heat and power generation, including oil, natural gas, coal, and geothermal energy."},"uf":[{"name":"energy sources","usewith":false},{"name":"fossil fuels","usewith":false}],"bt":[{"code":777,"name":"natural resources","parent":1174,"scope":"Stocks of anything naturally occurring that have a beneficial use for man including economic, nutritional, recreational, aesthetic, and other benefits."},{"code":1174,"name":"topics","parent":1,"scope":"Themes, subjects, and concerns for which USGS information resources are relevant."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[{"code":172,"name":"coal resources","parent":799,"scope":"Fuel resources such as anthracite, lignite, bituminous coal, or coke, consisting largely of carbonaceous material and formed from fossilized plants."},{"code":2292,"name":"energy storage","parent":799,"scope":"Methods and technologies for holding energy to be recovered at a later time."},{"code":477,"name":"geothermal resources","parent":799,"scope":"Energy resources related to the earth's internal heat, commonly applied to springs or vents discharging hot water or steam."},{"code":770,"name":"natural gas resources","parent":799,"scope":"Stocks of naturally formed hydrocarbon gases which are usually associated with petroleum fields.  Useful for heating, they are principally methane, but can be ethane, butane, or propane."},{"code":829,"name":"oil resources","parent":799,"scope":"Deposits (pools) of highly valuable liquid hydrocarbons or fossil fuels."},{"code":1997,"name":"wind energy","parent":799,"scope":"Use of prevailing wind as a source of energy to drive turbines or other machinery."}],"rt":[{"code":2297,"name":"assessment units","parent":2093,"scope":"Geographic areas for which a valuable resource is estimated.  Frequently defined in two or more dimensions, for example specifying underground formations in a given geographic area.  Functions or services may be estimated in addition to material resources."},{"code":312,"name":"economic geology","parent":464,"scope":"Scientific study of the formation, location, and use of marketable geologic materials including fuels, metals, minerals, and water."}]}