United States Geological Survey YearbookThe Survey, 1984 - Geology |
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Page 17
... basins , and the offshore areas included in the Exclusive Economic Zone . Investi- gations in these areas encompass a wide range of mineral - deposit types but have a special focus on strategic and critical minerals . This term ...
... basins , and the offshore areas included in the Exclusive Economic Zone . Investi- gations in these areas encompass a wide range of mineral - deposit types but have a special focus on strategic and critical minerals . This term ...
Page 18
... basin that may contain major cobalt , nickel , platinum and copper deposits Major mineral deposits in exposed basement Steelville .Flat River Fredericktown Iron ore Iron ore Some potential. 1000 5000 100 ° W 5000 SŲ OK 466 N MN WI 1000 ...
... basin that may contain major cobalt , nickel , platinum and copper deposits Major mineral deposits in exposed basement Steelville .Flat River Fredericktown Iron ore Iron ore Some potential. 1000 5000 100 ° W 5000 SŲ OK 466 N MN WI 1000 ...
Page 19
... Basins Mesozoic rift basins , formed between 205 and 240 million years ago , are another potential domestic source of minerals , including nickel , cobalt , and platinum - group elements for which the United States presently depends ...
... Basins Mesozoic rift basins , formed between 205 and 240 million years ago , are another potential domestic source of minerals , including nickel , cobalt , and platinum - group elements for which the United States presently depends ...
Page 22
... seek a quantitative estimate of mineral resources so that CIFIC MOUNTAIN SYSTEM 1 RMONTANE PLATEA Basin and Ra LAURENTIAN URLAND LAMN ! OZARK . PLATEAUS APPALACHIAN ATLANTIC HIGHLANDS PLAINS the mineral - resource value of an area can be ...
... seek a quantitative estimate of mineral resources so that CIFIC MOUNTAIN SYSTEM 1 RMONTANE PLATEA Basin and Ra LAURENTIAN URLAND LAMN ! OZARK . PLATEAUS APPALACHIAN ATLANTIC HIGHLANDS PLAINS the mineral - resource value of an area can be ...
Page 32
... basins in the eastern United States show a contrasting trend of decreasing copper with a decreasing nickel- cobalt ratio ( trend 2 ) . Copper content in the trend 2 group is as much as one - half to one - third lower than it is in rocks ...
... basins in the eastern United States show a contrasting trend of decreasing copper with a decreasing nickel- cobalt ratio ( trend 2 ) . Copper content in the trend 2 group is as much as one - half to one - third lower than it is in rocks ...
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activities Alaska aquifer areas Assistant Bacillus cereus basins Bureau California cartographic cartographic data base City coal Columbia Glacier Commission contaminants Control Cooperative Denver Department of Public digital cartographic data digital data earthquake energy Environmental eruption Federal agencies Federal Bldg feet fiscal year 1984 flow fluid inclusions geographic geographic information systems Geologist geophysical ground water ground-water hazards High Plains hydrologic ical image map Information Systems investigations irrigation Lake land Landsat lava located Loki Patera major Management Mauna Loa million mineral deposits mineral resources models National Center National Mapping Division Office offshore Parkfield Parkfield earthquake potential production quadrangle radar Regional remote sensing River rocks San Andreas fault scientific sediment Service sewage sources square miles STOP studies sulfur surface Survey scientists Survey's techniques tion topographic maps trends U.S. Geological Survey Volcano Water Conservation District Water District zone