Ordovician and Silurian Phi Kappa and Trail Creek formations, Pioneer Mountains, central Idaho: Stratigraphic and structural revisions, and new data on graptolite faunas
James H. Dover, William B. N. Berry, Reuben James Ross Jr.
1980, Professional Paper 1090
Recent geologic mapping in the northern Pioneer Mountains combined with the identification of graptolites from 116 new collections indicate that the Ordovician and Silurian Phi Kappa and Trail Creek Formations occur in a series of thrust-bounded slices within a broad zone of imbricate thrust faulting. Though confirming a deformational style...
Hydrology and model study of the proposed Prosperity Reservoir, Center Creek Basin, southwestern Missouri
Edward Joseph Harvey, Leo F. Emmett
1980, Water-Resources Investigations Report 80-7
A dam and reservoir have been proposed for construction on Center Creek, Jasper County, in southwestern Missouri. Ground-water levels in the hills adjacent to the reservoir will rise when the impoundment is completed. One of the problems is that the proposed site of Prosperity Reservoir is a few miles upstream...
Water-level monitoring along San Andreas and San Jacinto faults, southern California, during fiscal year 1980
P.M. Merifield, D.L. Lamar
1980, Open-File Report 81-386
Beginning in October 1976, a program of water-level monitoring of abandoned water wells was initiated in the Palmdale area with the purpose of identifying possible water-level changes premonitory to a major earthquake on the San Andreas fault. In October 1977, the program was extended southeastward along the rift zone to...
Preliminary delineation of salty ground water in the northern Atlantic Coastal Plain
Harold Meisler
1980, Open-File Report 81-71
Salty ground water underlies freshwater in the eastern part of the northern Atlantic Coastal Plain. The transition zone between freshwater and saltwater is represented in this report by a series of maps showing the depths to chloride concentrations of 250, 1,000, 10,000, and 18,000 milligrams per liter. The maps are...
Shorter contributions to stratigraphy and structural geology, 1979
Water Resources Division, U.S. Geological Survey
1980, Professional Paper 1126-A-J
PART A: A system of anticlines lies along the trend of the sinuous course of the Colorado River for a distance of 97 km in the central Grand Canyon. Similar anticlines occur in some perennially wet side canyons. The anticlines are most abundant and well developed along northeast-trending reaches of...
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...
Ground-water appraisal of sand plains in Benton, Sherburne, Stearns, and Wright counties, central Minnesota
Gerald F. Lindholm
1980, Open-File Report 80-1285
Surficial-sand aquifers in 960 square miles of central Minnesota have been studied to determine the occurrence, availability, and suitability of the surficial aquifer as a source of water. The aquifer is being increasingly developed for irrigation. During the drought of 1976, nearly 24,000 acre-feet of ground water was withdrawn for irrigation,...
Revised nomenclature and stratigraphic relationships of the Fredericksburg Complex and Quantico Formation of the Virginia Piedmont
Louis Pavlides
1980, Professional Paper 1146
The Fredericksburg Complex, in part a migmatitic terrane in northeast Virginia, is subdivided on the basis of lithology, as well as aeromagnetic and aeroradiometric data, into two metamorphic suites. These suites are separated by the northeast-trending Spotsylvania lineament, a rectilinear geophysical feature that is probably the trace of an old...
Distribution of nitrate in the unsaturated zone, Highland-East Highlands area, San Bernardino County, California
John M. Klein, Wesley L. Bradford
1980, Water-Resources Investigations Report 80-48
Nitrogen in the unsaturated soil zone in the Highland-East Highlands area of San Bernardino County, Calif., has been suspected as the source of nitrate in water from wells. Plans to recharge the local aquifers with imported surface water would raise the water table and intercept that nitrogen. This study was...
Sediment transport model for the East Fork of the Carson River, Carson Valley, Nevada
Terry Katzer, J. P. Bennett
1980, Open-File Report 80-160
No abstract available. ...
Field data describing the movement and storage of sediment in the East Fork River, Wyoming: Part II, Bed elevations, 1979
Robert H. Meade, Robert M. Myrick, William W. Emmett
1980, Open-File Report 80-1190
At 39 cross sections in a 3.3-kilometer reach of East Fork River Wyo., bed elevations were measured daily during a month-long period that included the peak snowmelt runoff. Elevations were measured at less frequent intervals for a week before and several weeks after peak runoff. Considerable scour and fill was...
January 1980 water levels, and data related to water-level changes, western and south-central Kansas
M.E. Pabst
1980, Open-File Report 80-958
This report contains hydrologic data on water-level measurements in observation wells in western and south-central Kansas. The measurements were made in mid-winter, mostly in January, when pumping was minimal and water levels had recovered from the effects of pumping during the previous irrigation season. This report also provides basic hydrologic...
Hydrologic data for urban studies in the San Antonio, Texas, metropolitan area, 1977
Roberto Perez, Lynn Harmsen
1980, Open-File Report 80-743
Hydrologic investigations of urban drainage basins in Texas were begun by the U.S. Geological Survey in 1954. These studies are now in progress in Austin, Dallas, Dallas County, Fort Worth, Houston, and San Antonio.The Geological Survey, in cooperation with the Texas Department of Water Resources, expanded the existing gaging-station network...
The effects of using ground water to maintain water levels of Cedar Lake, Wisconsin
R.S. McLeod
1980, Water-Resources Investigations Report 80-23
Cedar Lake, a kettle lake with no surface inlet or outlet, was studied to evaluate the feasibility of maintaining water levels of lakes in the glaciated kettle moraine area of eastern Wisconsin by pumping ground water into them. The general hydrogeology of the area around the lake was defined and...
Three-dimensional digital-computer model of the Ferron sandstone aquifer near Emery, Utah
Daniel J. Morrissey, Gregory C. Lines, Scott D. Bartholoma
1980, Water-Resources Investigations Report 80-62
A three-dimensional finite-difference computer model of the Ferron sand-stone aquifer was used to simulate ground-water flow in the Emery coal field in east-central Utah. The model also was used to predict the effects of pro-posed surface mining and the resulting mine dewatering on potentiometric sur-faces of the aquifer. The model...
Geophysical-geological analysis of Fairfax County, Virginia
David L. Daniels
1980, Open-File Report 80-1165
Aeromagnetic, aeroradioactivity, and gravity surveys of Fairfax County, Virginia, are interpreted with the aid of existing geologic data and local geophysical measurements. Highly magnetic metasedimentary rocks of the Peters Creek Schist and Sykesville Formation produce most of the magnetic anomalies of Fairfax County. In contrast, the granitoid rocks of the...
A catalogue of drill core recovered from Kilauea Iki lava lake, from 1967 to 1979
Rosalind Tuthill Helz, Norman G. Banks, Thomas J. Casadevall, Richard S. Fiske, R. B. Moore
1980, Open-File Report 80-504
The purpose of this report is to serve as a descriptive catalogue for drill core recovered from Kilauea Iki lava lake, from 1967 to 1979. Kilauea Iki lava lake was formed when lavas of the 1959 summit eruption were ponded in Kilauea Iki pit crater, a large pit crater...
Technique for estimating magnitude and frequency of floods in Maryland
David H. Carpenter
1980, Open-File Report 80-1016
A method is presented for estimating flood magnitudes for natural drainage basins without urban development or regulated flow. The method was developed by multiple-regression techniques and applies to floods with recurrence intervals from 2 to 100 years.The State is divided into three regions, and sets of equations for calculating peak...
Ground-water availability near Fort Wayne, Allen County, Indiana
Michael Planert
1980, Water-Resources Investigations Report 80-34
A 3-year study to determine the groundwater potential of confined glacial aquifers in a large part of Allen County, Ind., was begun in July 1974 by the U.S. Geological Survey. Mapping of outwash sands and gravels delineated two distinct layers of sand and gravel in the southern and eastern parts...
Geologic field trip guide for Cenozoic stratigraphy of southwestern Washington
John M. Armentrout
1980, Open-File Report 80-362
This summary of southwestern Washington stratigraphy describes the principal Tertiary formations comprising the Cenozoic sequences. A field trip road log provides directions for access to type and/or reference localities for each formation discussed.Tertiary rocks of southwestern Washington, measuring nearly 13,000 feet in thickness, are mapped as thirteen formational units. These...
A summary of environmental geologic studies in the Georges Bank area, United States northeastern Atlantic Outer Continental Shelf, 1975-1977
John M. Aaron
1980, Open-File Report 80-241
The growing need for the United States to find and develop new energy resources has led to interest in the petroleum potential of frontier areas of the Atlantic Outer Continental Shelf (OCS) seaward of the eastern seaboard state boundaries. These submerged lands are under federal jurisdiction. The authority to lease...
Preliminary report on the geology of the continental slope adjacent to OCS Lease Sale 55, eastern Gulf of Alaska: Petroleum resource implications
Gary R. Winkler, G. R. Winkler, Warren L. Coonrad, George Claypool
1980, Open-File Report 80-1089
Forty samples of Tertiary and Cretaceous outcrop or suspected outcrop were dredged along the 250-km-long northwest-trending continental slope between long 138°00' W. and 142°30' W. These samples, from water depths of 3,150 m to 200 m, combined with seismic reflection data, identify seven rock units in apparently normal stratigraphic position....
Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, Orange Beach quadrangle, Alabama
John C. Scott, Larry R. Bohman
1980, Hydrologic Atlas 636
Shown on the Orange Beach topographic map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along the shores of Wolf Bay, Perdido Bay, and Bayou St. John and adjacent areas in the vicinity of Orange Beach, Ala., and along the beaches exposed to...
Correlation of coal beds, coal zones, and key stratigraphic units in the Pennsylvanian rocks of eastern Kentucky
Charles L. Rice, J. Hiram Smith
1980, Miscellaneous Field Studies Map 1188
The Pennsylvanian rocks of the eastern Kentucky coal field unlderlie an area of about 27,000 square kilometers (see index map). Largely because of the size and stratigraphic complexity of the area, Huddle and others (1963, p. 31) divided it into six coal reserve districts (unofficial), utilizing state and county lines...
Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, Daphne-Point Clear quadrangles, Alabama
John C. Scott, Larry R. Bohman
1980, Hydrologic Atlas 631
Shown on a topographic map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along the eastern shore of Mobile Bay generally from Daphne, Alabama, southward through Fairhope and Point Clear to Mullet Point, Alabama. Buildings and sewalls were damaged by flooding and tidal...
