Preliminary geologic map of southwestern part of the Wallace 1:250,000 sheet, Idaho-Montana
Jack Edward Harrison
1977, Open-File Report 77-33
Aeromagnetic map of Virginia
Isidore Zietz, J.L. Calver, S.S. Johnson
1977, Geophysical Investigations Map 916
Documentation for subroutine REDUC3, an algorithm for the linear filtering of gridded magnetic data
Richard J. Blakely
1977, Open-File Report 77-784
Subroutine REDUC3 transforms a total field anomaly h1(x,y) , measured on a horizontal and rectangular grid, into a new anomaly h2(x,y). This new anomaly is produced by the same source as h1(x,y) , but (1) is observed at a different elevation, (2) has a source with a different direction of...
Analyses of native water and dredged material from southern Louisiana waterways, 1975-76
Charles R. Demas, Patricia C. Higgins
1977, Open-File Report 77-503
From June 1975 to July 1976 the U.S. Geological Survey conducted nine dredging and seven postdredging studies related to water quality in selected reaches of major navigable waterways of southern Louisiana. Samples were collected from the Mississippi River-Gulf Outlet, Mississippi River at Southwest Pass, Mississippi River at New Orleans, Bayou...
Analyses of native water, core material, and elutriate samples collected from the Atchafalaya River and Atchafalaya Bay
Charles R. Demas
1977, Open-File Report 77-769
During October and November 1976 the U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, collected native water and core material from 14 sites along the Atchafalya River in Louisiana (from the head of Whiskey Bay Pilot Channel to American Pass) and 5 sites in Atchafalya Bay...
Water resources data for Idaho, water year 1976
Water Resources Division, U.S. Geological Survey
1977, Water Data Report ID-76-1
Bouguer gravity map of the Mogollon-Santa Rita-Tyrone region, southwestern New Mexico
Gordon P. Eaton, D. L. Peterson, Michael Webring
1977, Open-File Report 77-650
No abstract available....
Mineral resources of the Joyce Kilmer-Slickrock Wilderness, North Carolina-Tennessee
Frank Gardner Lesure, E. R. Force, J. F. Windolph, J. J. Hill
1977, Bulletin 1416
No abstract available....
U.S. Geological Survey programs of resource assessment, geologic environmental studies, and marine geology investigations of the continental margin adjacent to deep sea areas in the Atlantic and Gulf of Mexico
John Charles Behrendt
1977, Open-File Report 77-320
A water-quality assessment of the Northeast Creek and Desper Creek watersheds: South Anna River basin, Louisa County, Virginia
Stanley M. Rogers
1977, Open-File Report 77-460
No abstract available. ...
Bouguer gravity map of the northern Mississippi Embayment, parts of Missouri, Arkansas, Tennessee, Kentucky, and Illinois
T.G. Hildenbrand, C. P. Ervin, John Hendricks, Gordon R. Keller, L. D. McGinnis, R. G. Stearns
1977, Open-File Report 77-228
No abstract available....
Water resources data for Florida, water year 1976; Volume 1, northeast Florida
Water Resources Division, U.S. Geological Survey
1977, Water Data Report FL-76-1
Water resources data for the 1975 water year in northeast Florida consists of discharge records for 59 streams, stage—only records for 12 streams, elevations for 67 lakes, and daily water level measurements for 98 wells. Water quality data for approximately 220 surface sites and 700 wells are included; as are...
Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Eagle Quadrangle, Alaska
Edward Huntington Cobb
1977, Open-File Report 77-845
These summaries of references are designed to aid in library research on metallic and nonmetallic (other than mineral fuels and construction materials) mineral occurrences in the Eagle quadrangle, Alaska. All references to reports of the Geological Survey, to most reports of the U.S. Bureau of Mines, and to most reports...
Aeromagnetic map of the Gros Ventre area, Wyoming
Water Resources Division, U.S. Geological Survey
1977, Open-File Report 77-373
No abstract available....
Public water supplies of selected municipalities in Florida, 1975
H.G. Healy
1977, Water-Resources Investigations Report 77-53
In 1975, the 169 municipalities and 5 county water systems listed in this report supplied 1.037 million gallons of water each day, on the average to 77 percent of the population of the State of Florida. The quantity of water supplied represented 90 percent of the State's public water supply...
Stream simulation in an analog model of the ground-water system on Long Island, New York
Arlen W. Harbaugh, Rufus T. Getzen
1977, Water-Resources Investigations Report 77-58
The stream circuits of an electric analog model of the ground-water system of Long Island were modified to more accurately represent the relationahip between streamflow and ground-water levels. Assumptions for use of the revised circuits are (1) that streams are strictly gaining, and (2) that ground-water seepage into the streams...
Geologic map of the Gbanka Quadrangle, Liberia
E. R. Force, J.D.N. Dunbar
1977, IMAP 776-D
Geologic map of the Willard quadrangle, eastern Kentucky
William Randall Brown
1977, Geologic Quadrangle 1387
Evaluation of a potential well field near Church Rock as a water supply for , New Mexico
Glenn A. Hearne
1977, Water-Resources Investigations Report 77-98
No abstract available. ...
Fluctuations of ground-water levels in Lee County, Florida, in 1975 water year
T.H. O’Donnell
1977, Open-File Report 76-854
During the 1975 water year, rainfall was about average at Page Field, Florida, and from 20-25 percent below average at Lehigh Acres and Sanibel Island. Water levels were monitored in 57 observation wells in Lee County, Florida. Of the 23 wells that tap the water-table aquifer, one record high and...
Land use and land cover and associated maps for Hardin, Montana; Wyoming
Water Resources Division, U.S. Geological Survey
1977, Open-File Report 77-393
Map showing distribution pattern of barium from samples of the nonmagnetic fraction of heavy-mineral concentrates, northern Sonora, Mexico
Margaret Hinkle, S.K. McDanal, George Benitez, Luis Chavez
1977, Open-File Report 77-340
Geologic map of the Teague Quadrangle, Tennessee
William Scott Parks
1977, Open-File Report 77-494
Hydrologic changes after logging in two small Oregon coastal watersheds
David Dell Harris
1977, Water Supply Paper 2037
Effects of clearcut, cable logging on the hydrologic characteristics of a small coastal stream in Oregon indicate an average 181-percent increase in sediment yield over a 7-year postlogging period. Annual runoff and high-flow volumes increased 19 and 1.1 inches (480 and 28 mm), respectively, after logging in the watershed. Clearcutting...
Statistical data summaries: mineral industries of South American countries
Glenn L. Shaffer
1977, Open-File Report 77-556