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Page 5274, results 131826 - 131850

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Map showing the difference between the potentiometric surfaces of the Magothy Aquifer of September 1975 and September 1982 in southern Maryland
Frederick K. Mack, Judith C. Wheeler, Stephen E. Curtin
1982, Water-Resources Investigations Report 83-4283
A map was prepared that shows the net change in the potentiometric surface of the Magothy aquifer in southern Maryland from September 1975 to September 1982. The map is based on measurements from a network of 55 observation wells. During the 8-year period, the potentiometric surface was (1) lowered by...
Trap-efficiency study, Highland Creek flood-retarding reservoir near Kelseyville, California, water years 1966-77
L.F. Trujillo
1982, Water Supply Paper 2182
This investigation is part of a nationwide study of trap efficiency of detention reservoirs. In this report, trap efficiency was computed from reservoir inflow and outflow sediment data and from reservoir survey and outflow data. Highland Creek Reservoir is a flood-retarding reservoir located in Lake County, near Kelseyville, California. This...
Generalized altitude and configuration of the water table in parts of Larimer, Logan, Sedgwick, and Weld Counties, Colorado
Ronald G. Borman, Neville G. Gaggiani
1982, Water-Resources Investigations Report 82-4055
The water table in parts of Larimer, Logan, Sedgwick, and Weld Counties, Colorado ranges from about 7,000 feet above the National Geodetic Vertical Datum of 1929 (formerly called mean sea level) in eastern Larimer County to about 3,450 feet in northeastern Sedgwick County. Water is moving to the south and...
Geomorphology of New England
C. S. Denny
1982, Professional Paper 1208
Widely scattered terrestrial deposits of Cretaceous or Tertiary age and extensive nearshore and fluvial Coastal Plain deposits now largely beneath the sea indicate that the New England region has been above sea level during and since the Late Cretaceous. Estimates of rates of erosion based on sediment load in rivers...
Geologic report and recommendations for the cobalt mission to Morocco sponsored by The Trade and Development Program of the International Development Cooperation Agency
M. P. Foose, Darwin L. Rossman
1982, Open-File Report 82-618
A mission sponsored by the Trade and Development Program (TDP) of the International Development Cooperation Agency (IDCA) went to Morocco to evaluate the possibility of finding additional sources of cobalt in that country, as well as other types of mineralization. Information obtained during this trip shows Morocco to be a...
Hydrologic data for urban studies in the Austin, Texas, metropolitan area, 1980
R.M. Slade, J.L. Gaylord, M.E. Dorsey, R.N. Mitchell, J.D. Gordon
1982, Open-File Report 82-506
Hydrologic investigations of urban watersheds in Texas were begun by the U.S. Geological Survey in 1954. Studies are now in progress in Austin, Houston, and San Antonio. Studies have been completed in the Dallas and Fort Worth areas. The Geological Survey, in cooperation with the Texas Department of Water Resources, began...
Flood profiles in the Calapooya Creek basin, Oregon
John Friday
1982, Open-File Report 82-439
Water-surface profiles were computed for a 19.4-mile reach of Calapooya Creek in Douglas County, Oregon. The data will enable the county to evaluate flood hazards in the floodprone areas in the reach. Profiles for floods having recurrence intervals of 2, 10, 50, 100, and 500 years are shown in graphic...
Map showing how the potentiometric surface of the Magothy Aquifer of August 1980 differed from the potentiometric surface of September 1977, in southern Maryland
Frederick K. Mack Jr., J. C. Wheeler, Stephen E. Curtin
1982, Open-File Report 81-631
The map is based on the differences between two sets of water-level measurements made in 65 observation wells. One set was made in 1977, a relatively dry year, and the other set was made in 1980, another relatively dry year. The map shows that the potentiometric surface was higher in...
Map showing surface ruptures associated with the Mammoth Lakes, California, earthquakes of May 1980
M. M. Clark, J. C. Yount, P.R. Vaughn, R.L. Zepeda
1982, Miscellaneous Field Studies Map 1396
This map shows surface ruptures associated with the M 6 Mammoth Lakes earthquakes of May 25-27, 1980 (Sherburne, 1980). The ruptures were mapped during USGS field investigations May 28 to June 4 and July 14-19, 1980. The map also includes some of the ruptures recorded by California Division of Mines and Geology...
Map showing geochemical characteristics of rock samples from the Kalmiopsis Wilderness, southwestern Oregon
Carl A. Carlson, Norman J. Page, David J. Grimes, Reinhard W. Leinz
1982, Miscellaneous Field Studies Map 1240-C
This report summarizes 1,307 semiquantitative chemical analyses of rocks collected to aid int he evaluation of the mineral resources of the Kalmiopsis Wilderness, Oreg. Chemical analyses and sample location maps are presented by Grimes, Leinz, and Speckman (1981). The area is located in the Kilamath Mountains geoporphic province of southwestern...