Map showing aeromagnetic interpretation of the Baker-Cypress BLM Instant Study Area and Timbered Crater Forest Service Further Planning Areas, Modoc, Shasta, and Siskiyou counties, California
Andrew Griscom
1981, Miscellaneous Field Studies Map 1214-C
The data for the aeromagnetic map of the Baker-Cypress and Timbered crater areas were collected in 1978 and compiled at a scale of 1 :62,500 (U,S, Geological Survey, 1979). East-west traverses were spaced at 0.8-km intervals at a constant altitude of 1370 m (4500 ft) above sea level, Contour interval...
Geologic structure, hydrology, and water quality of the Laramie-Fox Hills aquifer in the Denver basin, Colorado
Stanley G. Robson
1981, Hydrologic Atlas 650
The Denver ground-water basin underlies a 6,700-square-mile area extending from Greeley in the north to Colorado Springs in the south, and from the Front Range in the west to near Limon in the east. The four major bedrock aquifers that occur in the basin are the Laramie-Fox Hills aquifer (the...
Water resources data, Washington, water year 1981: Vol. 2 - Eastern Washington
Water Resources Division, U.S. Geological Survey
1981, Water Data Report WA-81-2
Water-resources data for the 1981 water year for Washington consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground-water. This report, in two volumes, contains records for water discharge at 229 gaging...
Water resources data for New York, volume 1, eastern New York, excluding Long Island
Water Resources Division, U.S. Geological Survey
1981, Water Data Report NY-80-1
No abstract available. ...
Altitude and configuration of the water table in the High Plains aquifer in Kansas, 1980
Marilyn E. Pabst, Lloyd E. Stullken
1981, Open-File Report 81-1004
The High Plains aquifer in Kansas is part of a regional system that extends into Colorado, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. The aquifer in Kansas underlies an area of 31,000 square miles in the western and south-central part of the State. This aquifer is a hydraulically...
Stratigraphic sections of Middle Jurassic Entrada Sandstone and related rocks from Salt Valley to Dewey Bridge in east-central Utah
Robert Brett O'Sullivan
1981, Oil and Gas Investigation Chart 113
No abstract available....
Map showing vegetation distribution in the central part of the East Tintic Mountains, Utah
Nancy Milton, Daryl P. Madura
1981, Miscellaneous Field Studies Map 1195
With the development of remote sensing technology has come the capability of defining and mapping plant communities by means of their spectral properties. Such maps will be an important aid in resource evaluation and management, especially in densely vegetated and remote areas of the world. This study in part of a...
Equal-area base map of the Bering Sea, plate 4: Aleutian east
D.R. Jones, P. A. Swenson
1981, Open-File Report 81-458
No abstract available....
Preliminary map showing recently active breaks along the Maacama Fault zone between Hopland and Laytonville, Mendocino County, California
E. H. Pampeyan, Philip W. Harsh, J.M. Coakley
1981, Miscellaneous Field Studies Map 1217
The southernmost 15 km of this map is a product of a study that began in 1975 as part of a study of recency of faulting in coastal California (Ziony and others, 1974; Buchanan-Banks and others, 1978; Pampeyan , 1979). In February 1975, after being shown evidence of recent faulting...
Geochemical survey of Shining Rock Wilderness, Heywood County, North Carolina
Frank G. Lesure
1981, Miscellaneous Field Studies Map 1290-B
The U.S. Geological Survey (USGS) made a reconnaissance geochemical survey of the Shining Rock Wilderness (fig. 1) to test for unidentified or unexposed mineral deposits that might be recognized by their geochemical halos. Similar geochemical survey based on trace-element analyses have been credited with the discovery of many types of...
Ice-gouge data, Beaufort Sea, Alaska, 1972-1980
Douglas M. Rearic, Peter W. Barnes, Erk Reimnitz
1981, Open-File Report 81-950
The interaction of sea ice with the sea floor is an important factor affecting geologic processes on high latitude shelves. One of the most obvious forms of this interaction is the formation of furrow-like gouges or the sea floor. These gouges are caused by wind- and current-driven ice masses that...
The surficial aquifer in east-central St. Johns County, Florida
Eugene C. Hayes
1981, Water-Resources Investigations Report 81-14
The surficial aquifer, a composite of confined and unconfined water-bearing zones overlying the Miocene Hawthorn Formation, is an important source of water in St. Johns County, Fla. The water from wells open to the surficial aquifer generally meets quality standards recommended by the U.S. Environmental Protection Agency for public water...
Revised techniques for estimating magnitude and frequency of floods in Montana
Charles Parrett, R. J. Omang
1981, Open-File Report 81-917
Relations for estimating the flood magnitudes for ungaged sites in Montana have been updated. The State was divided into eight regions and separate multiple-regression equations for each region were developed that relate logarithms of annual flood magnitude to logarithms of basin characteristics for exceedance probabilities of 50, 20, 10, 4,...
Time-of-travel study in the Sebasticook River basin, Maine
Gene W. Parker
1981, Open-File Report 81-545
Time of travel was determined for four reaches of the Sebasticook River, two on the East Branch Sebasticook River, and two on the main stem of the Sebasticook River. Reach A included 7.8 miles of the East Branch Sebasticook River from Dexter to Corinna, Maine. Reach B included 8 miles...
Hydrology and the effects of industrial pumping in the Nikiski area, Alaska
Gordon L. Nelson
1981, Open-File Report 81-685
Ground-water consumption for industrial use at Nikiski increased from about 1 million gallons per day in 1968 to 4.2 million gallons per day in 1979. Water managers and local citizens are concerned that industrial pumping may reduce the esthetic and recreational value of local lakes. Some lake levels have declined...
Geologic mapping of Kentucky: A history and evaluation of the Kentucky Geological Survey--U.S. Geological Survey Mapping Program, 1960-1978
Earle Rupert Cressman, Martin C. Noger
1981, Circular 801
In 1960, the U.S. Geological Survey and the Kentucky Geological Survey began a program to map the State geologically at a scale of 1:24,000 and to publish the maps as 707 U.S. Geological Survey Geologic Quadrangle Maps. Fieldwork was completed by the spring of 1977, and all maps were published...
Mekometer measurements in the Imperial Valley
Ronald G. Mason, C.N. Crook, P.R. Wood
1981, Open-File Report 80-2008
During the six weeks following the October 15, 1979 earthquake, parts of the Imperial Valley Mekometer network (Fig. 1) around the Imperial fault to the east of El Centro were re-measured, some repeatedly, in an attempt to assess the coseismic and postearthquake slip on the fault, and horizontal strain adjustment...
Flow routing in the Susquehanna River Basin: Part IV - Routing reservoir releases in the eastern Susqehanna river basin in New York State
Thomas J. Zembrzuski Jr.
1981, Water-Resources Investigations Report 80-117
Flow-routing models for six reaches of major streams in the eastern Susquehanna River basin in New York were developed and used to trace releases of water from East Sidney Lake and Whitney Point Lake to gaged points downstream. Daily streamflow during 1942-77 was modeled for the following reaches: Susquehanna River--Unadilla...
Map showing ground-water conditions in the Sacramento Valley area, Mohave County, Arizona; 1979
C.L. Pfaff, D.M. Clay
1981, Open-File Report 81-418
The Sacramento Valley area includes about 8002 miles in northwestern Arizona and is bounded on the west by the Black and Buck Mountains and on the east by the Cerbat and Hualapai Mountains. The Black Mountains consist mainly of volcanic rocks; the Buck, Cerbat, and Hualapai Mountains consist of igneous,...
Potentially favorable areas for large-yield wells in the Red River Formation and Madison Limestone in parts of Montana, North Dakota, South Dakota, Wyoming, and Nebraska
L.M. MacCary, E. M. Cushing, David L. Brown
1981, Open-File Report 81-220
The need for large quantities of energy has created interest in the Fort Union coal region of the Northern Great Plains. Extensive development of this coal, which may include onsite steam-power generation, gasification, liquefaction, and slurry-pipeline transport of the coal from this region, would place a heavy demand on the...
Measured sections of the Browns Park Formation (Miocene) in Moffat County, Colorado, 1980
Stanley J. Luft, William L. Thoen
1981, Open-File Report 81-171
Eight partial sections of the Browns Park Formation of Miocene age were measured in Moffat County, northwestern Colorado, during the 1980 field season, as part of a study of the stratigraphy and depositional environments of the formation. These newly measured sections are intended to complement other surface sections of the...
Seismicity of the lower east rift zone of Kilauea Volcano, Hawaii, 1960 to 1980
Robert Y. Koyanagi, Jennifer S. Nakata, Wilfred R. Tanigawa
1981, Open-File Report 81-984
No abstract available....
Ground-water hydrology of the Mormon Island Crane Meadows wildlife area near Grand Island, Hall County, Nebraska
R. Theodore Hurr
1981, Open-File Report 81-1109
The Platte River in south-central Nebraska flows generally eastward in a broad, flat valley. The river banks and many areas adjacent to the river support thick stands of cottonwood and willow trees. Brush, grass, pasture land, and cultivated fields occupy most of the remaining area. This is the habitat for...
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...
The central Virginia volcanic-plutonic belt: An island arc of Cambrian(?) age
Louis Pavlides
1981, Professional Paper 1231-A
Pre-Ordovician, probable Early Cambrian metavolcanic and somewhat younger meta-intrusive rocks form a linear belt in the central Virginia Piedmont. On the basis of the geologic and geochemical features of these rocks in the Fredericksburg area, and insofar as this area is representative of the entire belt, it is concluded that...
