exploration  search
RTcoal exploration
 development
 Exclusive Economic Zone
 geochemical methods
 geodesy
 geological methods
 geophysical methods
 lunar bases
 mineral exploration
 mineral resources
 Moon
 offshore
 onshore
 pathfinders
 petroleum exploration
 photogeology
 potential deposi
SNBefore 1972, also search geological exploration. Before 1981, also search prospecting. As of 1983, may be used with certain commodities (list C): all of the energy sources and water resources. As of 1993, see coal exploration and petroleum exploration (in