United States Geological Survey YearbookU.S. Department of the Interior, Geological Survey - Geology |
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Page 60
... volcanic rocks . On the other hand , metal deposits are notably lacking 60 | Yearbook 1979 along one of these zones in southern Nevada ( E , fig . 2 ) and the northern Nevada Rift ( G , fig . 2 ) , emphasizing the importance of other ...
... volcanic rocks . On the other hand , metal deposits are notably lacking 60 | Yearbook 1979 along one of these zones in southern Nevada ( E , fig . 2 ) and the northern Nevada Rift ( G , fig . 2 ) , emphasizing the importance of other ...
Page 62
... volcanic processes , which are believed to be sus- tained by tidal heating . Eight active volcanoes have been positively identified ; many of these possess plumes that extend up to 150 miles above the surface . Io has the greatest ...
... volcanic processes , which are believed to be sus- tained by tidal heating . Eight active volcanoes have been positively identified ; many of these possess plumes that extend up to 150 miles above the surface . Io has the greatest ...
Page 63
... volcanic erup- ◅tions can be seen rising more than 60 miles above the lit crescent . Voyager 2 digital mosaic of Europa . This object is the smoothest of the satellites ; relief on its soft icy crust is less than 0.6 mile . 160 ° 8123 ...
... volcanic erup- ◅tions can be seen rising more than 60 miles above the lit crescent . Voyager 2 digital mosaic of Europa . This object is the smoothest of the satellites ; relief on its soft icy crust is less than 0.6 mile . 160 ° 8123 ...
Page 68
... volcanic eruption at that time which diverted a large river system to the north or a direct result of worldwide climate change . Climatic reconstructions indicate a steady decrease over the 3.2 - million- year period in the regional ...
... volcanic eruption at that time which diverted a large river system to the north or a direct result of worldwide climate change . Climatic reconstructions indicate a steady decrease over the 3.2 - million- year period in the regional ...
Page 118
... volcanic eruptions , land- slides , subsidence , glacier surges , and earthquakes . To meet this responsibility , the Survey established a program to : • Increase awareness of geologic- related hazards among govern- ment officials , the ...
... volcanic eruptions , land- slides , subsidence , glacier surges , and earthquakes . To meet this responsibility , the Survey established a program to : • Increase awareness of geologic- related hazards among govern- ment officials , the ...
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activities Administration appraisals areas Argillite assessment Azie Taylor Morton Barrow basin Bureau cartographic cartographic information City coal Commission Conservation Division coordination County cover map data base Denver Denver Federal Center Direct program drilling earthquake energy Environmental estimates evaluation exploration Federal agencies Federal and Indian Federal Bldg Federal lands feet fiscal year 1979 Flood funds geologic hazards geophysical Government ground-water Gulf of Mexico hydrologic Indian lands investigations Ixtoc Lake Landsat Landsat images located Menlo Park ment miles million mineral resources National Center National Petroleum Reserve Nevada NPRA Office offshore oil and gas oilspill operations Outer Continental Shelf percent photographs planning potential production Puerto Rico quadrangles Regional Reimbursable program Reserve in Alaska Reston River rocks satellite sediments seismic Service South Barrow STOP studies Survey's Test tion topographic tract U.S. Geological Survey United Water Conservation District Water Data Water Resources zones