United States Geological Survey YearbookThe Survey, 1987 - Forest reserves |
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Page 7
... folded and tilted . Volcanism ceased , but subsidence of as much as 6 miles continued as a thick , postvolcanic sedimentary sec- tion filled the graben . Ground water accounts for 12 percent ( 144 million gallons. Perspectives 7.
... folded and tilted . Volcanism ceased , but subsidence of as much as 6 miles continued as a thick , postvolcanic sedimentary sec- tion filled the graben . Ground water accounts for 12 percent ( 144 million gallons. Perspectives 7.
Page 8
... percent ( 144 million gallons per day ) of all fresh- water withdrawals in Connecticut and sup- plies drinking water to a third of the State's population ( fig . 1 ) . Water is withdrawn through 1,200 community wells ( public supply ) ...
... percent ( 144 million gallons per day ) of all fresh- water withdrawals in Connecticut and sup- plies drinking water to a third of the State's population ( fig . 1 ) . Water is withdrawn through 1,200 community wells ( public supply ) ...
Page 11
... percent of Connecticut's ground water , prohibits many activities in areas that overlie those waters , and establishes the basis for the siting and cleanup of land - based waste- disposal facilities . As a final key element , the ground ...
... percent of Connecticut's ground water , prohibits many activities in areas that overlie those waters , and establishes the basis for the siting and cleanup of land - based waste- disposal facilities . As a final key element , the ground ...
Page 23
... percent zinc , 5 percent lead , and 82 grams per metric ton of silver . When production begins in 1990 , Red Dog will be the largest , predominantly base- metal lode mine operating in Alaska . The discovery of the Red Dog deposit by ...
... percent zinc , 5 percent lead , and 82 grams per metric ton of silver . When production begins in 1990 , Red Dog will be the largest , predominantly base- metal lode mine operating in Alaska . The discovery of the Red Dog deposit by ...
Page 25
... percent copper , 0.06 percent uranium oxide , 0.6 grams per metric ton of gold , and 3.5 grams per ton of silver . The deposit occurs within an area dominated by Middle Proterozoic anorogenic magmatism , and the ores are hosted by ...
... percent copper , 0.06 percent uranium oxide , 0.6 grams per metric ton of gold , and 3.5 grams per ton of silver . The deposit occurs within an area dominated by Middle Proterozoic anorogenic magmatism , and the ores are hosted by ...
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activities Administration Alaska analysis aquifer areas Award basin Board Bureau Calcasieu River cartographic cartographic data Chief Hydrologist City City of w climate coal coastal Commission concentrations contamination cooperative Coordination County data base Denver Denver Federal Center Department of Public deposits Earth Science earthquake energy environment Environmental fiscal flow geographic information systems Geologic Division geologic map Geologist geophysical global change gram graphic ground water ground-water hazards hydrologic Hydrologist investigations Irrigation Lake Lake Nyos land located Management ment miles mineral resources National Center National Mapping Division natural Office organic Park percent Planning processes radon Regional Reston River rocks samples San Joaquin River scientific scientists sediment seismic selenium Service soils Stop streamflow studies surface tion Transportation U.S. Geological Survey United users USGS Valley Volcano Water Conservation District Water District water quality Water Resources water-quality wetlands zone