Low-flow-frequency characteristics for continuous-record streamflow stations in Minnesota
A.D. Arntson, D. L. Lorenz
1987, Water-Resources Investigations Report 86-4353
Annual and summer (May 1 to September 30) low-flow frequency curves are presented for 175 continuous-record streamflow stations in Minnesota. The curves were developed for all stations with 10 or more years of continuous record. The 1-, 7-, and 30-day low-flow discharges at selected recurrence intervals obtained from these curves...
Preliminary isoseismal map and intensity distribution for the southeastern Illinois earthquake of June 10, 1987
B.G. Reagor, L. R. Brewer
1987, Open-File Report 87-578
Seismicity map of the state of Louisiana
Carl W. Stover, B. Glen Reagor, S. T. Algermissen
1987, Miscellaneous Field Studies Map 1081
This map is one of a series of seismicity maps produced by the U.S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. This map shows only those earthquakes with epicenters located within the boundaries of Louisiana, even though earthquakes in...
Roughness coefficients for densely vegetated flood plains
G.J. Arcement, V.R. Schneider
1987, Water-Resources Investigations Report 83-4247
Although much research has been done on Manning 's roughness coefficients for stream channels, very little has been done on the selection of roughness values for densely vegetated flood plains. In this report four method for determining roughness coefficients for flood plains are examined and evaluated. Field data were collected...
Geophysics and petrology of the deep crust and upper mantle; a workshop
S. H. Kirby, J. E. Nielson-Pike
Jay S. Noller, editor(s)
1987, Circular 956
Water resources data for Oregon, water year 1985. Volume 2: Western Oregon
C.W. Alexander, R. L. Moffatt, P. R. Boucher, M.L. Smith
1987, Water Data Report OR-85-2
No abstract available....
An assessment of low flows in streams in northeastern Wyoming
G.W. Armentrout, J.F. Wilson
1987, Water-Resources Investigations Report 85-4246
Low flows were assessed and summarized in the following basins in northeastern Wyoming: Little Bighorn, Tongue, Powder, Little Missouri, Belle Fourche, Cheyenne, and Niobrara River, and about 200 river miles of the North Platte River and its tributaries. Only existing data from streamflow stations and miscellaneous observation sites during the...
Generalized geologic map of the Butte 1 degree by 2 degrees Quadrangle, Montana
C. A. Wallace
1987, Miscellaneous Field Studies Map 1925
Lithology and stratigraphy of a drill core from the vicinity of the Hack Canyon mines, Mohave County, northern Arizona
B. S. Van Gosen, K. J. Wenrich
1987, Open-File Report 87-144
GSDRAW and GSMAP version 4.0; prototype programs for the IBM PC and compatible microcomputers to assist compilation and publication of geologic maps and illustrations; A, documentation
G.I. Selner, R. B. Taylor
1987, Open-File Report 87-496-A
Filtered magnetic anomaly maps of Ohio
T.G. Hildenbrand
1987, Geophysical Investigations Map 967
No abstract available....
Michigan ground-water quality
D.H. Dumouchelle, T. R. Cummings, G.R. Klepper
1987, Open-File Report 87-732
Analytical results for stream sediments, pan concentrates from stream sediments, and rock samples collected from the Stensgar Mountain Quadrangle, Stevens County, Washington
J. G. Evans, J.A. Peterson
1987, Open-File Report 87-74
Mineralogy and instrumental neutron activation analysis of seven National Bureau of Standards and three Instituto de Pesquisas Tecnologicas clay reference samples
John W. Hosterman, F.J. Flanagan, Anne Bragg, M. W. Doughten, R.H. Filby, Catherine Grimm, J. S. Mee, P.J. Potts, N.W. Rogers
1987, Circular 957
The concentrations of 3 oxides and 29 elements in 7 National Bureau of Standards (NBS) and 3 Instituto de Pesquisas Techno16gicas (IPT) reference clay samples were etermined by instrumental neutron activation analysis. The analytical work was designed to test the homogeneity of constituents in three new NBS reference clays, NBS-97b,...
Hydrologic and geologic factors affecting land subsidence near Eloy, Arizona
V.J. Epstein
1987, Water-Resources Investigations Report 87-4143
At an extensometer site near Eloy, Arizona, 1.09 m of land subsidence caused by groundwater withdrawal were measured by leveling in 1965-83. The extensometer, which partially penetrates the compressible sediments, recorded 0.82 m of compaction during the same period. By use of a one-dimensional model, cumulative daily compaction values were...
National Geologic Mapping Program; goals, objectives, and long-range plans
Water Resources Division, U.S. Geological Survey
1987, Circular 1020
Maps showing anomalous copper concentrations in stream sediments and heavy-mineral concentrates from the Ajo and Lukeville 1 degree by 2 degrees quadrangles, Arizona
P. K. Theobald, H. N. Barton
1987, Miscellaneous Field Studies Map 1834-C
This map is part of a folio of maps of the Ajo and Lukeville 1 ° x 2° quadrangles, Arizona, prepared under the Conterminous United States Mineral Assessment Program. Other publications in this folio include U.S. Geological Survey Miscellaneous Field Studies Maps MF-1831-A and MF-1831-B and Open-File Reports 82-119, 82–599,...
Preliminary assessment of potential well yields and the potential for artificial recharge of the Elm and Middle James aquifers in the Aberdeen area, South Dakota
P.J. Emmons
1987, Water-Resources Investigations Report 87-4017
A complex hydrologic system exists in the glacial drift overlying the bedrock in the Aberdeen, South Dakota, area. The hydrologic system has been subdivided into three aquifers: the Elm, Middle James, and Deep James. These sand-and-gravel outwash aquifers generally are separated from each other by till or other fine-grained sediments....
Hydrologic unit maps
Paul R. Seaber, F. Paul Kapinos, George L. Knapp
1987, Water Supply Paper 2294
A set of maps depicting approved boundaries of, and numerical codes for, river-basin units of the United States has been developed by the U.S . Geological Survey. These 'Hydrologic Unit Maps' are four-color maps that present information on drainage, culture, hydrography, and hydrologic boundaries and codes of (1) the 21...
Gneiss-hosted kyanite gold and gneiss-hosted epithermal gold; a supplement to U.S. Geological Survey bulletin 1693
R. M. Tosdal, D. B. Smith
1987, Open-File Report 87-272-B
Reconnaissance geologic map of the Colona Quadrangle, Montrose and Ouray counties, Colorado
W. J. Hail
1987, Miscellaneous Field Studies Map 2003
The National Geographic Names Data Base: Phase II instructions
Donald J. Orth, Roger L. Payne
1987, Circular 1011
The Geographic Names Information System is a computer-based information system developed to meet major national needs by providing information for named entities in the United States, its territories, and outlying areas. The National Geographic Names Data Base, a component of the Geographic Names Information System, currently contains most names and...
Estimation of streamflow characteristics and assessment of trends in the Niobrara River at Mariaville, Nebraska
E.E. Fischer
1987, Water-Resources Investigations Report 87-4073
A computer model was used to synthesize a long-term streamflow record for the Niobrara River at Mariaville, Nebraska. The record was developed on the basis of 30-plus years of streamflow data from 3 upstream sites, and the U. S. Geological Survey 's CONROUT model was calibrated using 294 days of...
Regional ground-water discharge to large streams in the upper coastal plain of South Carolina and parts of North Carolina and Georgia
W. R. Aucott, R.S. Meadows, G. G. Patterson
1987, Water-Resources Investigations Report 86-4332
Base flow was computed to estimate discharge from regional aquifers for six large streams in the upper Coastal Plain of South Carolina and parts of North Carolina and Georgia. Aquifers that sustain the base flow of both large and small streams are stratified into shallow and deep flow systems. Base-flow...
The relation of streamflow to habitat for anadromous fish in the Stillaguamish River basin, Washington
S.S. Embrey
1987, Water-Resources Investigations Report 86-4326
The techniques of Instream Flow Incremental Methodology were used to determine the habitat available over a range of simulated streamflows for anadromous fish in certain reaches of streams in the Stillaguamish River basin, Washington. The stream discharge-habitat relations were used to identify that discharge termed the optimum discharge, which provides...
