United States Geological Survey YearbookThe Survey, 1985 - Geology |
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Page 17
... seismometers that convert the waves to electrical signals , which are then recorded OCEAN Granitic plutons Volcanoes Forearc basin Melange wedge SUBDUCTING OCEANIC 17 Looking Deep into the Earth's Crust with Seismic Reflection Profiling.
... seismometers that convert the waves to electrical signals , which are then recorded OCEAN Granitic plutons Volcanoes Forearc basin Melange wedge SUBDUCTING OCEANIC 17 Looking Deep into the Earth's Crust with Seismic Reflection Profiling.
Page 18
... seismometers collect a complex mass of data that represent the signals received at each of the seismometers after each shot or set of vibrations . These field recordings are then processed in comput- ers to create a single composite ...
... seismometers collect a complex mass of data that represent the signals received at each of the seismometers after each shot or set of vibrations . These field recordings are then processed in comput- ers to create a single composite ...
Page 19
Geological Survey (U.S.). 800 seismometers spaced at 30 - meter intervals ( 400 on each side of trucks ) 4 vibrator trucks ( source ) , 120 seismometers , spaced at 1 - kilometer intervals DIABLO RANGE SALINIAN 100 KILOMETERS. Figure 2 ...
Geological Survey (U.S.). 800 seismometers spaced at 30 - meter intervals ( 400 on each side of trucks ) 4 vibrator trucks ( source ) , 120 seismometers , spaced at 1 - kilometer intervals DIABLO RANGE SALINIAN 100 KILOMETERS. Figure 2 ...
Page 99
... seismometers recorded both natural seismic activity at the vent sites as well as large energy pulses from the air - gun system on the USGS Research Vessel Samuel P. Lee ; the data from this study will provide improved struc- tural and ...
... seismometers recorded both natural seismic activity at the vent sites as well as large energy pulses from the air - gun system on the USGS Research Vessel Samuel P. Lee ; the data from this study will provide improved struc- tural and ...
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activities Administration Alaska aquifer system areas assessment Atlantic Coastal Plain Basin boundary Bureau California cartographic Central chemical chemical elements Chief City City of w Colorado Commission contain cooperative Coordination County cover mapping crust dams data base Denver Department of Public deposits Division earth science earthquake Energy Environmental feet fiscal year 1985 Flood Franciscan assemblage geologic mapping Geologist geophysical ground water ground-water hazards hydrologic image maps Information Systems investigations irrigation Lake land cover Landsat landslide major manganese mapping projects miles Mineral Resources mitigation National Center National Mapping North ocean Office oil and gas photographs Planning potential quadrangle Raton Basin remote sensing River rocks San Joaquin Valley sand blows sediment sedimentary seismic selenium Service slope soil sources Stop studies surface tion topographic Transportation U.S. Geological Survey United USGS Valley volcano Water Conservation District Water District water quality Water Resources water-quality Wildlife zone