A field calibration of the sediment-trapping characteristics of the Helley-Smith bed-load sampler
William W. Emmett
1980, Professional Paper 1139
For sediment particle sizes between 0.50 mm and 16 mm, the Helley-Smith bedload sampler has a near perfect sediment-trapping efficiency. For particles sizes smaller than 0.50 mm, the Helley-Smith sampler has a high bedload sediment-trapping efficiency because part of the sediement retained by the sampler has been transported in suspension...
Quality of ground water in Routt County, northwestern Colorado
Kenneth J. Covay, R.L. Tobin
1980, Open-File Report 80-956
Preliminary results of 1978 coal assessment drilling in northern and western Recluse geologic analysis area, northern Campbell County and eastern Sheridan County, Wyoming
George A. Correia
1980, Open-File Report 80-80
Delineation of flood hazards in the Biscuit Flat quadrangle and New River area, Maricopa County, Arizona
H. W. Hjalmarson
1980, IMAP 843-C
No abstract available....
Preliminary bathymetry of Northwestern Fiord and neoglacial changes of Northwestern Glacier, Alaska
Austin Post
1980, Open-File Report 80-414
The first preliminary bathymetry (at 1:20,000 scale) and other scientific investigations of Northwestern Fiord, Alaska, were conducted by the Research Vessel Growler in 1978, disclosing this 10.5-mile-long branched waterway to be a deep basin enclosed by a terminal-moraine shoal. The basin was formerly filled by Northwestern Glacier, which began a...
A one-dimensional, steady-state, dissolved-oxygen model and waste-load assimilation study for Little Laughery Creek, Ripley and Franklin counties, Indiana
Charles G. Crawford, William G. Wilber, James G. Peters
1980, Open-File Report 80-74
The Indiana State Board of Health is developing a State water-quality management plan that includes establishing Limits for wastewater effluents discharged into Indiana streams. A digital model calibrated to conditions in Little Laughery Creek tributary and Little Laughery Creek was used to predict alternatives for future waste loadings that would...
Acid-extractable alumina and water-soluble sodium analyses and histograms of Eocene Green River Formation from U.S. Geological Survey coreholes CR-1 and CR-2, Piceance Creek basin, Rio Blanco County, Colorado
John R. Donnell, Marjorie C. Smith
1980, Open-File Report 80-663
Geology of the Round Bay quadrangle, Anne Arundel County, Maryland
James Pierson Minard, Fred E. May, Raymond A. Christopher
1980, Professional Paper 1109
Six Coastal Plain formations and one group crop out in the Round Bay quadrangle near the inner edge of the Atlantic Coastal Plain physiographic province. The quadrangle lies astride the Severn River, in Anne Arundel County, near Annapolis, Md. The seven stratigraphic units aggregate as much as 128 m in...
Controlled photomosaic of the Tharsis Northeast Quadrangle of Mars
Water Resources Division, U.S. Geological Survey
1980, IMAP 1258
Well yields and chemical quality of water from water-table aquifers in the Colorado Springs-Castle Rock area, Front Range urban corridor, Colorado
D. E. Hillier, E. C. Hutchinson
1980, IMAP 857-I
No abstract available....
Controlled photomosaic of the Tharsis Northwest Quadrangle of Mars
Water Resources Division, U.S. Geological Survey
1980, IMAP 1259
Leasable mineral and waterpower land classification map of the Raton 1° x 2° quadrangle, New Mexico and Colorado: Lands withdrawn, classified, and prospectively valuable for leasable minerals; occurrences of other selected minerals; and lands withdrawn or classified for waterpower and reservoir sites
Donald A. DeCicco, Elmer D. Patterson, Gale A. Lutz
1980, IMAP 1226
No abstract available....
A systematic revision of the ostracode species described by Ulrich and Bassler and by Malkin from the Chesapeake Group in Maryland and Virginia
Richard M. Forester
1980, Professional Paper 1128
Those ostracode species described by Ulrich and Bassler (1904) and Malkin (1953) from the Chesapeake Group of early Miocene to early Pleistocene age are treated systematically. Lectotypes are designated for all species which have syntypic suites and the lectotypes, holotypes, or hypotypes for all but two species are illustrated. A...
Sporomorphs from the Jackson Group (upper Eocene) and adjacent strata of Mississippi and western Alabama
Norman O. Frederiksen
1980, Professional Paper 1084
This palynological study is based on 71 outcrop and core samples of the Jackson Group and adjacent strata from the type area of the group in western Mississippi and also from eastern Mississippi and western Alabama. The Jackson Group consists entirely of marine strata in the region of study. It...
Aeromagnetic map of part of the southeastern United States
Isidore Zietz, F. P. Gilbert
1980, Geophysical Investigations Map 937
Preliminary geologic map of the Richmond quadrangle, Alameda and Contra Costa counties, California
T. W. Dibblee Jr.
1980, Open-File Report 80-1100
Aeromagnetic map of Georgia
Isidore Zietz, F. E. Riggle, F. P. Gilbert
1980, Geophysical Investigations Map 940
No abstract available....
Aeromagnetic map of Georgia: In color
Isidore Zietz, F. E. Riggle, F. P. Gilbert
1980, Geophysical Investigations Map 941
No abstract available....
Geology and ground water in north-central Santa Cruz County, California
Michael J. Johnson
1980, Water-Resources Investigations Report 80-26
North-central Santa Cruz County is underlain mainly by folded sedimentary rocks of Tertiary and Cretaceous age that have been highly fractured by movements in the San Andreas fault system. Ground water is stored in fractures within shale and mudstone formations and in intergranular pore spaces within fine- to very fine-grained...
Surficial geologic map of the Northfield quadrangle, Massachusetts, New Hampshire, and Vermont
Kerry J. Campbell, Joseph H. Hartshorn
1980, Geologic Quadrangle 1440
Temperature and solute-transport simulation in streamflow using a Lagrangian reference frame
Harvey E. Jobson
1980, Water-Resources Investigations Report 81-2
A computer program for simulating one-dimensional, unsteady temperature and solute transport in a river has been developed and documented for general use. The solution approach to the convective-diffusion equation uses a moving reference frame (Lagrangian) which greatly simplifies the mathematics of the solution procedure and dramatically reduces errors caused by...
Vertical crustal movements in the conterminous United States over the last 10 million years
Dolores J. Gable, Tom Hatton
1980, Open-File Report 80-180
Reconnaissance geochemical map of the Big Snowies Wilderness and contiguous RARE II study areas, Fergus, Golden Valley, and Wheatland Counties, Montana
David A. Lindsey, D.M. Hopkins, E. L. Mosier, J.C. Antweiler
1980, Miscellaneous Field Studies Map 1243-D
No abstract availabe. ...
Land use and land cover and associated maps for Kingman, California, Nevada, Arizona
Water Resources Division, U.S. Geological Survey
1980, Open-File Report 80-627
Ground water in the Thousand Oaks area, Ventura County, California
James J. French
1980, Water-Resources Investigations Report 80-63
The ground-water basin beneath the city of Thousand Oaks, Calif. , corresponds closely in area with the surface-water drainage basin of Conejo Valley. Before World War II there was little ground-water development. After World War II, urban development put a stress on the ground-water basin; many wells were drilled and...
