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Page 4951, results 123751 - 123775

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Sources of water and nitrogen to the Widefield Aquifer, southwestern El Paso County, Colorado
Patrick Edelmann, Doug Cain
1985, Water-Resources Investigations Report 85-4162
The Widefield aquifer near Colorado Springs, Colorado, is recharged primarily by Fountain Creek and, to a lesser extent, by infiltration and percolation of water from the land surface and from groundwater inflow. During the past 20 to 30 years, concentrations of nitrate (as nitrogen) in the Widefield aquifer have increased...
Hydraulic and sediment characteristics at the North Channel Bridge, Jamaica Bay, New York
W. W. Staubitz, S.W. Wolcott
1985, Water-Resources Investigations Report 85-4085
Data were collected during the spring of 1984 in the vicinity of North Channel Bridge in Jamaica Bay, New York to define the hydraulic regime and the physical characteristics and chemical quality of bottom sediments. The data were used in a semiquantitative analysis to predict the effects of bridge replacement...
Ground-water contribution to the salinity of the Upper Colorado River Basin
J. W. Warner, F.J. Heimes, R.F. Middelburg
1985, Water-Resources Investigations Report 84-4198
A study was conducted to estimate the contribution of groundwater and other natural sources to the salinity of streamflow in the Upper Colorado River Basin. Salt-load estimates were derived from a mass balance using measurements of quantity and quality of base streamflow. Groundwater inflow was considered to represent the bulk...
Geohydrology and ground-water flow at Verona Well Field, Battle Creek, Michigan
N.G. Grannemann, F. R. Twenter
1985, Water-Resources Investigations Report 85-4056
The city of Battle Creek has 30 wells in the Verona well field capable of yielding 300 to 1,000 gallons per minute each. During summer, total withdrawals are as little as 6,000 gallons per minute. In early 1984, only 9 to 12 of the wells were being used; the remaining...
Geochemistry of metavolcanic rocks from the Ranyah area, Kingdom of Saudi Arabia
Robert C. Greene
1985, Open-File Report 85-1
Major-element analyses of 26 samples from seven map units of metavolcanic rocks from the Ranyah area are compared with analyses in the literature of rocks from known tectonic settings. The evidence suggests that most of the layered rocks of the Ranyah area originated in immature island arcs. The Khaniq formation...
The Salma Caldera complex, northeastern Arabian Shield, Kingdom of Saudi Arabia
K.S. Kellogg
1985, Open-File Report 85-370
The upper Proterozoic Salma caldera is genetically part of an elongate alkali granitic massif, Jabal Salma. Comenditic ash-flow tuffs, the oldest recognized rocks of the caldera complex, were erupted during caldera collapse associated with the rapid evacuation of the upper, mildly peralkaline part of a zoned magma reservoir. Within the...
A gazetteer of surface-mine lakes, Eastern Interior Coal Province, Illinois
D. C. Voelker
1985, Water-Resources Investigations Report 84-4355
Hundreds of lakes have been formed as a result of surface mining in Area 35 of the Eastern Interior Coal Province in Illinois. This gazetteer contains physical and chemical data from 107 surface-mine lakes sampled from June through August 1983. Information collected includes location, morphology, and vertical profile measurements of...
Frequency and duration of flooding of Grove Creek near Kenansville, North Carolina, for present and proposed restored channel conditions
T. C. Stamey
1985, Water-Resources Investigations Report 85-4298
The Grove Creek basin includes an area of about 42 square miles in Duplin County, southeastern North Carolina. The North Carolina Department of Human Resources (DHR) proposes to implement a channel restoration project on about an eight-mile reach of Grove Creek. The purpose of the restoration program is to improve...