United States Geological Survey YearbookThe Survey, 1987 - Geology |
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Page vii
... present our science as a public service and to fulfill our responsibility as public servants . Perhaps the most telling theme of the pages in this volume is that of cooperation . Only by working together across lines of scientific ...
... present our science as a public service and to fulfill our responsibility as public servants . Perhaps the most telling theme of the pages in this volume is that of cooperation . Only by working together across lines of scientific ...
Page viii
... present to you this Yearbook of the U.S. Geological Survey . Darlash back Dallas L. Peck Director Lake Huron at Light House Park , Huron County , Michigan . ( Photograph by Michael J. Sweat , U.S. Geological Survey . ) Perspectives the ...
... present to you this Yearbook of the U.S. Geological Survey . Darlash back Dallas L. Peck Director Lake Huron at Light House Park , Huron County , Michigan . ( Photograph by Michael J. Sweat , U.S. Geological Survey . ) Perspectives the ...
Page 2
... present ) Sedimentary Strata MIDDLE PROTEROZOIC ( 1600-900 m.y. ago ) Grenville Province Keweenawan rocks EARLY PROTEROZOIC ( 2500-1600 m.y. ago ) Southern Province ARCHEAN ( before 2500 m.y. ago ) Superior Province Reflection Line ...
... present ) Sedimentary Strata MIDDLE PROTEROZOIC ( 1600-900 m.y. ago ) Grenville Province Keweenawan rocks EARLY PROTEROZOIC ( 2500-1600 m.y. ago ) Southern Province ARCHEAN ( before 2500 m.y. ago ) Superior Province Reflection Line ...
Page 5
... present - day Atlantic Ocean . For rea- sons not yet fully understood , the rifting stopped before complete continental sepa- ration occurred , and as a result , the proc- ess of continental separation was " frozen into " the crust ...
... present - day Atlantic Ocean . For rea- sons not yet fully understood , the rifting stopped before complete continental sepa- ration occurred , and as a result , the proc- ess of continental separation was " frozen into " the crust ...
Page 16
... presents a signifi- cant challenge . Through the cooperative program , new applications of geophysical methods for characterizing stratified - drift aquifers are presently being tested . The State's Water Use and Allocation Program presents ...
... presents a signifi- cant challenge . Through the cooperative program , new applications of geophysical methods for characterizing stratified - drift aquifers are presently being tested . The State's Water Use and Allocation Program presents ...
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activities Administration agencies Alaska aquifer basin Bureau Calcasieu River cartographic CD ROM Chief City City of w coal color Commission concentrations Connecticut contamination cooperative Coordination County crater data base Department of Public deposits drilling Earth Science earthquakes energy Enewetak Environmental facilities Federal feet Figure fiscal year 1987 geographic information systems geologic map Geologist geophysical gram graphic ground water hazards hydrologic Hydrologist investigations Lake Nyos land located lower Calcasieu River major Management ment miles million mineral resources mining models National Center National Mapping Division Office organic compounds Park percent Planning processes production projects Province quadrangle Regional Reston rocks samples San Andreas fault San Joaquin River scientific scientists sedimentary sediments seismic selenium Service South Stop studies surface Survey's techniques tion topographic Transportation U.S. Geological Survey United users USGS Vernalis Volcano Water District Water Resources water-use zone