United States Geological Survey YearbookThe Survey, 1985 - Geology |
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Page 14
... trend represents advance , downward trend represents retreat . Heavy line is observed behavior of the terminus , averaged over the width . Light lines labeled ( a ) , ( b ) , and ( d ) show predictions using different kinds of numer ...
... trend represents advance , downward trend represents retreat . Heavy line is observed behavior of the terminus , averaged over the width . Light lines labeled ( a ) , ( b ) , and ( d ) show predictions using different kinds of numer ...
Page 21
... Trend , or other known ore- bearing localities . The whole - rock samples from the drill core were used to determine an intrinsic suite of trace elements that reflects the types of rocks in the geologic formations in the drill cores ...
... Trend , or other known ore- bearing localities . The whole - rock samples from the drill core were used to determine an intrinsic suite of trace elements that reflects the types of rocks in the geologic formations in the drill cores ...
Page 31
... trend ( Palisades sill , New Jersey , Dillsburg intrusion , Pennsylvania , Great Lake sheet , Tasmania , and Aloe lava lake , Hawaii ) show an increase of copper with a decreasing nickel- The Carlin Mine , northeastern Nevada , one of ...
... trend ( Palisades sill , New Jersey , Dillsburg intrusion , Pennsylvania , Great Lake sheet , Tasmania , and Aloe lava lake , Hawaii ) show an increase of copper with a decreasing nickel- The Carlin Mine , northeastern Nevada , one of ...
Page 32
... ( trend 1 ) . New data on tholeiitic dikes and flows in Triassic - Jurassic basins in the eastern United States show a ... trends of nickel - cobalt versus copper can be used to identify mafic rocks in which fractionation of nickel- and ...
... ( trend 1 ) . New data on tholeiitic dikes and flows in Triassic - Jurassic basins in the eastern United States show a ... trends of nickel - cobalt versus copper can be used to identify mafic rocks in which fractionation of nickel- and ...
Page 78
... trends . A geological understanding of the characteristics of petroleum occurrence also offers a base for planning national strategies for transition to other forms of energy . Development of alternate energy sources requires long lead ...
... trends . A geological understanding of the characteristics of petroleum occurrence also offers a base for planning national strategies for transition to other forms of energy . Development of alternate energy sources requires long lead ...
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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 geochemical 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 monitoring National Center National Mapping Division Office offshore Parkfield Parkfield earthquake Planning potential production quadrangle radar Regional remote sensing River rocks San Andreas fault scientific sediment Service 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