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Composition of tidal flat sediments, Willapa Bay, Washington
Gary W. Hill, John L. Chinn
1981, Open-File Report 81-272
The purpose of this study was to characterize the modern sediments of sandy tidal flats in Willapa Bay, Washington based on their composition.Generally, clay comprises less than five percent of the sediment. Clay content increases upslope and up-estuary. Principal clay minerals are montmorillanite, illite, and chlorite; two clay mineral suites...
Infaunal and neoichnological characteristics of the South Texas Outer Continental Shelf
Gary W. Hill
1981, Open-File Report 81-163
The zonation of macrobenthic infauna on the South Texas Outer Continental Shelf is related to water depth and sediment facies. Five zones can be defined by species distribution and density, diversity, equitability, and biogenic sedimentary structures.The numbers of species and individuals per unit area correlate locally with substrate characteristics (particularly...
Tidal flat sediments - texture, Willapa Bay, Washington
Gary W. Hill, John L. Chin
1981, Open-File Report 81-738
The purpose of this study was to texturally characterize the sediments of the mid-estuary tidal flats between Goose Point and Pickernell Creek in Willapa Bay, Washington and to compare these flats with other flats in the estuary.The mean grain size of sediments on tidal flats in the mid-estuary are fine...
Estimating probabilities of reservoir storage for the upper Delaware River Basin
Robert M. Hirsch
1981, Open-File Report 81-478
A technique for estimating conditional probabilities of reservoir system storage is described and applied to the upper Delaware River Basin. The results indicate that there is a 73 percent probability that the three major New York City reservoirs (Pepacton, Cannonsville, and Neversink) would be full by June 1, 1981, and...
Floods of March 1978, in the Maumee River basin, northeastern Indiana
Richard Earl Hoggatt
1981, Open-File Report 81-695
Floods in the Maumee River basin in northeastern Indiana in March 1978 resulted in heavy damage in Fort Wayne and surrounding areas. Flood damage in Fort Wayne was estimated by the Mayor to be 11 million dollars. Approximately 15 percent of the city was inundated, and 2,400 of its 190,000...
Flow model of Saginaw River near Saginaw, Michigan
David J. Holtschlag
1981, Open-File Report 81-1061
An unsteady-flow simulation model was applied to a 19.5-mile reach of Saginaw River. The model provides a method of determining instantaneous discharge for flows from -8,000 to 12,000 cubic feet per second. The currently used slope-rating method can be utilized to compute discharge only under steady and high-flow conditions. Unsteady...
E-field ratio telluric survey near the Big Maria Mountains, Riverside County, California
Donald B. Hoover, Michael M. Broker, T. Stambaugh
1981, Open-File Report 81-961
The U.S. Geological Survey (USGS) under the Wilderness Act (Public Law 88-577) and the Federal Land Policy and Management Act (Public Law 94-579) has the responsibility, along with the U.S. Bureau of Mines, to survey certain areas in order to determine their mineral resource potential. This report presents results of...
The Sea Data 651-4 data logger
David S. Hosom, Bradford Butman
1981, Open-File Report 81-111
This paper describes a digital data logger used as the primary controller and data collection device for the U.S. Geological Survey Sediment Monitoring Tripod Program. The tripods are deployed at sea in water depths up to 100 m for periods of 3 to 6 months. The system measures bottom current...
Clay mineralogy of Devonian shales in the Appalachian Basin
John W. Hosterman, Sallie I. Whitlow
1981, Open-File Report 81-585
A study of the clay mineralogy of the Devonian black shales of the Appalachian basin was undertaken to help predict areas for potential gas resources. More than 2,100 samples from 84 drill holes representing 11 shale units were analyzed for clay mineralogy or whole—rock mineralogy or both. Approximately 1,300 samples...
An assessment of streamflow, water quality, and the effects of constructing an impoundment on Bridge Creek at Augusta, Wisconsin
Leo B. House
1981, Open-File Report 81-1192
This study documents Streamflow, temperature, and water-quality conditions of Bridge Creek at Augusta, Wisconsin, and evaluates the potential effects of a proposed small impoundment on the creek. The effects are of concern to the Wisconsin Department of Natural Resources because the stream is a Class II trout stream. Average daily Streamflow,...
U.S. Geological Survey reports on the water resources of Florida, 1886-1980
Nevin Douglas Hoy, James D. Simmons, Maude Claiborne
1981, Open-File Report 81-816
The U.S. Geological Survey has been making investigations of the water resources of Florida since the latter part of the 19th century. The earlier work consisted mainly of data collection at a few spring and river sites at intermittent intervals with the exception of a statewide ground-water study made during...
Ground-water data for Michigan, 1980
G.C. Huffman
1981, Open-File Report 81-811
The purpose of this report is to make available the 1980 records of water levels and related data for the principal aquifers of the State. This report is written for municipalities, industries, institutions, consultants, drillers, hydrologists and other people interested in the ground-water resources....
Low-flow frequency data for selected stream gaging stations in Florida
G.H. Hughes
1981, Open-File Report 81-69
This report contains tables of low-flow frequency data for 161 stream-gaging stations in Florida. The selected stations represent those having suitable flow records spanning 7 or more years. Flow values representing the annual minimum average flow for selected periods ranging from 1 to 183 days are presented for recurrence intervals...