United States Geological Survey YearbookU.S. Geological Survey, 1994 - Geology |
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Page 6
... associated with any pre- viously mapped surface fault . Another system of small cracks was studied in Granada Hills , where ground deformations caused numerous water- and gas - main ruptures . These features were also caused by ground ...
... associated with any pre- viously mapped surface fault . Another system of small cracks was studied in Granada Hills , where ground deformations caused numerous water- and gas - main ruptures . These features were also caused by ground ...
Page 12
... associated with changes to natural systems include accelerated erosion and sedi- mentation and the resulting impacts on wetlands and associated habitats . These issues , although resulting from activities within the basin , may have far ...
... associated with changes to natural systems include accelerated erosion and sedi- mentation and the resulting impacts on wetlands and associated habitats . These issues , although resulting from activities within the basin , may have far ...
Page 15
... associated reworking of its floodplain surface . Areas reworked during the past two centuries are underlain primarily by channel sand and gravel that are capped by only minor amounts of overbank silt and clay . Thus , they provide ...
... associated reworking of its floodplain surface . Areas reworked during the past two centuries are underlain primarily by channel sand and gravel that are capped by only minor amounts of overbank silt and clay . Thus , they provide ...
Page 17
... associated with these levee breaches . The larger holes are as much as 500 meters wide and 1,000 meters long . These holes typi- cally attain their greatest depths ( as much as 16 meters ) just at the levee break . Stripped zones ...
... associated with these levee breaches . The larger holes are as much as 500 meters wide and 1,000 meters long . These holes typi- cally attain their greatest depths ( as much as 16 meters ) just at the levee break . Stripped zones ...
Page 30
... associated with oil . Gas often forms a pocket between the denser oil below and an impermeable cap rock above . Where no natural - gas distribu- tion system is available , gas produced in asso- ciation with oil is often considered a ...
... associated with oil . Gas often forms a pocket between the denser oil below and an impermeable cap rock above . Where no natural - gas distribu- tion system is available , gas produced in asso- ciation with oil is often considered a ...
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activities Administration agencies agricultural aquifer areas Assessment atmosphere Award Bureau Center City City of w coal Colorado comet Commission concentrations contaminant cooperation in earth County Water data sets database debris flows discharge distribution Division DSDL earth science environment Environmental Federal flood floodplain geographic information systems Geological Survey USGS GeoMedia geospatial data global ground-water hazards High Plains hydrologic impact Internet Irrigation KILOMETERS Lake land levees locations maps ment methane Mineral Resources Mississippi River monitoring Mount Rainier Mount Zirkel Wilderness Municipal National natural gas nitrate Northridge earthquake NSDI pesticides petroleum Planning region Reston River Basin Scientific and technical scientists sediment seismic Service South Platte River spatial data studies technical cooperation Telephone tion Transportation U.S. Geological Survey U.S.-Mexico border University users USGS Valley videoconferencing Volunteer Water Conservation District Water District Water Resources