United States Geological Survey YearbookThe Survey - Geology |
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Page 6
... continuing uplift of the Sierra Nevada and possibly to regional extension at the western edge of the Basin and Range province , which is fundamentally caused by interaction between the Pacific and North American crustal plates that abut ...
... continuing uplift of the Sierra Nevada and possibly to regional extension at the western edge of the Basin and Range province , which is fundamentally caused by interaction between the Pacific and North American crustal plates that abut ...
Page 7
... continuing volcanic activity at Mount St. Helens . These observations suggested that magma movement was involved in the ground deformation associated with the May 1980 earthquake sequence and even may have triggered the quakes ...
... continuing volcanic activity at Mount St. Helens . These observations suggested that magma movement was involved in the ground deformation associated with the May 1980 earthquake sequence and even may have triggered the quakes ...
Page 13
... continuing but at a slower rate than in the previous 2 years . Lateral spreading of the dome , however , seemed to be going on at about the same or even somewhat faster rate . At the same time , the uplift , which initially ex- tended ...
... continuing but at a slower rate than in the previous 2 years . Lateral spreading of the dome , however , seemed to be going on at about the same or even somewhat faster rate . At the same time , the uplift , which initially ex- tended ...
Page 20
... continuing through major national and State routes to other roads and trails . The railroad data are organized by annual ton- nage , starting with a connected network of the primary rail routes . Stream data are organized by length ...
... continuing through major national and State routes to other roads and trails . The railroad data are organized by annual ton- nage , starting with a connected network of the primary rail routes . Stream data are organized by length ...
Page 22
... continuing , systematic , and scientific basis , the investigation of the " geological structure , mineral resources and products of the national domain . " A number of laws and executive orders have expanded and modified the scope of ...
... continuing , systematic , and scientific basis , the investigation of the " geological structure , mineral resources and products of the national domain . " A number of laws and executive orders have expanded and modified the scope of ...
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activity Administration Alaska Apalachicola Apalachicola River Assessment Basin California cartographic Cascade volcanoes City Commission conodont conterminous United Cooperative data base Denver Department of Public deposits digital data digital line graphs Earth Resources Observation earth science earthquakes Energy Environmental eruptions evaluation faults Federal agencies Federal Bldg fiscal year 1982 Flood Control Geologic Division Geologist ground water ground-water hazards hydrologic Investigations Irrigation kaolinite Landsat Long Valley Caldera magma major Mammoth Lakes Menlo Park ment million mineral resources Minerals Management Service monitoring National Center National Mapping Division Nevada oil and gas percent Planning Planning w potential Potomac River produced Puerto Rico quadrangle radiometer Regional Research Resources Observation Systems resurgent dome rocks sediments seismic square miles STOP studies Survey's techniques tidal Potomac River tidal river tion topographic Transportation U.S. Geological Survey volcanic Water Conservation District Water District water levels Water Management Water Resources Western zone Δ Δ