United States Geological Survey YearbookThe Survey, 1986 - Geology |
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Page 13
... state with respect to the normal background condition of the net- works , an alert will be indicated . If anom- alous conditions are observed from more than one network , the level of the alert will Geological Survey Yearbook 1986 13.
... state with respect to the normal background condition of the net- works , an alert will be indicated . If anom- alous conditions are observed from more than one network , the level of the alert will Geological Survey Yearbook 1986 13.
Page 15
... ( normal ) e d C. b a Response .Continue normal operation . Alert project person- nel ; possible equipment malfunction and repair . Alert Parkfield Working Group and Data Collec- tion Operations . Alert Chief , USGS Office of Earthquakes ...
... ( normal ) e d C. b a Response .Continue normal operation . Alert project person- nel ; possible equipment malfunction and repair . Alert Parkfield Working Group and Data Collec- tion Operations . Alert Chief , USGS Office of Earthquakes ...
Page 30
... normal . Continuing irrigation in recent decades has added progressively fresher water to the top of the aquifer as the amount of readily soluble selenium in the soil was depleted . Thus , this fresher water apparently has displaced the ...
... normal . Continuing irrigation in recent decades has added progressively fresher water to the top of the aquifer as the amount of readily soluble selenium in the soil was depleted . Thus , this fresher water apparently has displaced the ...
Page 37
... normal and the illumination direction method , have been investigated . The cosine approach has been selected as the more flexible and responsive technique because of greater control in positioning the illumination source , adding ...
... normal and the illumination direction method , have been investigated . The cosine approach has been selected as the more flexible and responsive technique because of greater control in positioning the illumination source , adding ...
Page 47
... normal seepage of water to and from lakes differs in this region in that water seeping from a lake usually does not move to adjacent lower lakes because of the presence of these water table mounds or troughs . Knowledge of concentrated ...
... normal seepage of water to and from lakes differs in this region in that water seeping from a lake usually does not move to adjacent lower lakes because of the presence of these water table mounds or troughs . Knowledge of concentrated ...
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activities Administration Alaska aquifer areas basins California cartographic City Commission concentrations contaminants cooperation Coordination County data base Denver Denver Federal Center deposits digital cartographic data distribution drought earth-science earthquake Energy Environmental eruption Federal agencies Federal Bldg feet fiscal year 1986 flow format geographic information systems Geologist geophysical Gorda Ridge graphic ground water ground-water hazards hydrologic increased investigations Irrigation land Landsat levels located logical Survey Management Menlo Park ment miles mineral resource assessment monitoring National Center National Mapping Division National Water Office Operations organic Orinoco River Parkfield percent Planning potential precipitation production quadrangle radioactive waste radon Regional Reston River rocks runoff Salt Lake samples saturated zone scientific Scientific Drilling sediment seismic selenium Service soil sources Stop streamflow studies sulfide surface Survey's terranes tion Transportation trends U.S. Geological Survey United uranium Valley volcano waste Water District water quality Water Resources Division water-quality