Continuous tilt, strain, and magnetic field measurements near four earthquakes (ML = 3.6 to 3.8) on the San Andreas fault, California
M.J.S. Johnston, A.C. Jones, C.E. Mortensen, B.E. Smith
1978, Open-File Report 78-987
Four moderate earthquakes (M = 3.6 to 3.8) have occurred on the San Andreas fault in central California since October, 1977. These earthquakes are the first since 1974 to occur at this magnitude level within the array of tilt, strain, and magnetic instruments between Chalome (35.726N, 12.249 W) and San...
RFM (relative fraction magnitude): program explanation and computer program listing
Henry V. Alminas, George Van Trump
1978, Open-File Report 78-1013
The RFM (relative fraction magnitude) program is proposed as an aid in the estimation of depth to ore-mineral concentration. This estimate is based on the determination of the relative position of the sampled surface plane within the zonational framework of a hydrothermal sulfide mineralization. The program requires analytical data on...
The utility of petroleum seismic exploration data in delineating structural features within salt anticlines
S.L. Stockton, Alfred H. Balch
1978, Open-File Report 78-591
The Salt Valley anticline, in the Paradox Basin of southeastern Utah, is under investigation for use as a location for storage of solid nuclear waste. Delineation of thin, nonsalt interbeds within the upper reaches of the salt body is extremely important because the nature and character of any such fluid-...
Update and revision of brachiopod collections of the Phosphoria, Park City, and Shedhorn Formations (Permian) of the U.S. Geological Survey
Bruce R. Wardlaw
1978, Open-File Report 78-692
The numerous collections amassed by the U.S. Geological Survey's study of the Western Phosphate Field have been examined. Many collections already have been discarded; and only those still housed at the Smithsonian are dealt with in this paper. Future studies of the biostratigraphy and paleogeography of the Phosphoria Formation and...
Seismic engineering data report: Romanian and Greek records, 1972-77
A. Gerald Brady, C. Rojahn, V. Perez, P.G. Carydis, J.G. Shokos
1978, Open-File Report 78-1022
Principal facts for a set of regional gravity data for the Las Vegas 1 degree by 2 degrees sheet, Nevada
Denis Reidy, M. F. Kane, D.L. Healey, D. L. Peterson, H. E. Kaufmann
1978, Open-File Report 78-1012
Characteristics of the Landsat Multispectral Data System
James V. Taranik
1978, Open-File Report 78-187
Landsat satellites were launched into orbit in 1972 and 1975. Additional Landsat satellites are planned for launch in 1978 and 1981. The satellites orbit the Earth at an altitude of approximately 900 km and each can obtain repetitive coverage of cloud-free areas every 18 days. A sun-synchronous orbit is used...
Ground water withdrawn for municipal, industrial, and irrigation use in the Upper Peace and Alafia River basins, west-central Florida, 1970-74
Alton F. Robertson, L. R. Mills, D.C. Parsons
1978, Open-File Report 78-29
Data are presented for ground-water withdrawals for municipal, industrial and irrigation use in the upper Peace and Alafia River basins during 1970-71. Within the 1,160-square-mile study area, the principal source of ground water is the Floridan aquifer. Methods used to determine ground-water withdrawal include: metering water use; relating measured well...
Hydrologic data for urban studies in the Dallas, Texas metropolitan area, 1976
B.B. Hampton, C.M. Wood
1978, Open-File Report 78-437
Hydrologic investigations of urban watersheds 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....
Principles of computer processing of Landsat data for geologic applications
James V. Taranik
1978, Open-File Report 78-117
The main objectives of computer processing of Landsat data for geologic applications are to improve display of image data to the analyst or to facilitate evaluation of the multispectral characteristics of the data. Interpretations of the data are made from enhanced and classified data by an analyst trained in geology....
Geologic interpretation of gravity data from the Date Creek basin and adjacent areas, west-central Arizona
James K. Otton, Jeffrey C. Wynn
1978, Open-File Report 78-845
A gravity survey of the Date Creek Basin and adjacent areas was conducted in June 1977 to provide information for the interpretation of basin geology. A comparison of facies relations in the locally uraniferous Chapin Wash Formation and the position of the Anderson mine gravity anomaly in the Date Creek...
Ground-water data for the Salt Basin, Eagle Flat, Red Light Draw, Green River Valley, and Presidio Bolson in westernmost Texas
Donald Edward White, J. S. Gates, Joe T. Smith, B.J. Fry
1978, Open-File Report 77-575
From October 1971 through October 1974, the U.S. Geological Survey collected groundwater data in the basins in Texas west of the Pecos River drainage area and northwest of the Big Bend country. The basins included are, from east to west: The Presidio Bolson; the Salt Basin; Green River Valley, Eagle...
Hydrologic data for water-table aquifers in the Boulder-Fort Collins-Greeley area, Front Range urban corridor, Colorado
Paul A. Schneider, Donald E. Hillier
1978, Open-File Report 78-567
As part of the U.S. Geological Survey 's investigations of the hydrology and geology in the Front Range Urban Corridor of Colorado, hydrologic data relating to water-table aquifers were compiled during 1976-77. These data consisting of records of 446 wells and chemical analyses of water from 208 wells in the...
Water-resources investigations of the U.S. Geological Survey in Wyoming, fiscal year 1978
F. C. Boner
1978, Open-File Report 78-239
This report contains lists of streamflow and reservoir stations, peak-flow partial-record stations, chemical-quality stations, sediment stations, and observation wells where water levels are measured in Wyoming. The locations of the basic-data sites are shown on maps. Thirty-two water-resources appraisal projects in Wyoming are also described, including many that are related...
Floods of July 19-20, 1977 in the Johnstown area, western Pennsylvania
Stan A. Brua
1978, Open-File Report 78-963
Intense rainfall on the evening of July 19 and early morning hours of July 20, 1977, resulted in moderate to record flooding throughout much of an eight-county area of southwest Pennsylvania. In a 400-square-mile area directly north and east of Johnstown, rainfall totals of 6 to 12 inches were measured...
Hydrologic monitoring of waste-injection wells near Pensacola, Florida, March 1970 - December 1977
Charles A. Pascale, J.B. Martin
1978, Open-File Report 78-355
This report presents hydraulic and chemical data collected from March 1970 to December 1977 at a deep-well waste-injection system at the Monsanto Company's plant near Pensacola, Florida. The injection system presently consists of Injection Well A, Injection Well B, and two deep monitor wells all completed open hole in the...
Geologic conditions in the Baltimore Canyon Trough area: A summary of U.S.G.S. second-year environment studies
Harley J. Knebel
1978, Open-File Report 78-921
Geologic studies of the outer Continental Shelf off the Middle Atlantic States (Baltimore Canyon Trough Area) have been carried out for two years to assess conditions and hazards which might cause or distribute oil spills and other potential pollution associated with petroleum exploration and development. These detailed investigations were requested...
Analyses and description of geochemical samples, Peters Mountain Wilderness Study Area, Giles County, Virginia
Norma Rait, Frank Gardner Lesure
1978, Open-File Report 78-1077-C
Semiquantitative emission spectrographic analyses for 64 elements on 43 stream sediment and 73 rock samples from Peters Mountain Wilderness Study area, Giles County, Virginia, are reported here in detail. Locations for all samples are in Universal Transverse Mercator (UTM) coordinates. Brie[ descriptions of rock samples are also included. Rocks analysed...
Ages of flow units in the far eastern lunar maria based on crater density
Joseph M. Boyce
1978, Open-File Report 78-879
The distribution of major geologic units of uniform relative age exposed in the far eastern maria (i.e., Mare Marginis, Mare Smythii, and Mare Crisium) and Mare Humorum was compiled in map form on the basis of a crater density mapping technique. Correlation of crater densities and radiometric ages of Apollo...
Sediment transport by irrigation return flows on the Yakima Indian Reservation, Washington 1975 and 1976 irrigation seasons
Leonard M. Nelson
1978, Open-File Report 78-947
As determined from data collected at 10 sites on the Yakima Indian Reservation during the 1975 and 1976 irrigation seasons (April-September), seasonal sediment discharges in irrigation return flows ranged from 11,000 tons from Marion Drain and Satus Drain 302, to 400 tons from Coulee Drain. There was little variation between...
Chemical and mineralogical evaluation of soils, Hanging Woman Creek EMRIA site, Big Horn County, Montana
Ronald R. Tidball
1978, Open-File Report 78-346
The purpose of this study is to provide chemical and mineralogical data on the soil resource at the Hanging Woman Creek Energy Mineral Rehabilitation Inventory and Analysis (EMRIA) site. These data will contribute to the potential-reclamation evaluation in the event that the area is disturbed by strip mining for the...
Contact-metasomatic magnetite deposit, Medfra Quadrangle, Alaska
M.L. Throckmorton, William Wallace Patton
1978, Open-File Report 78-26
A small contact-metasomatic magnetite deposit was discovered in the Medfra quadrangle, Alaska, in 1976. It occurs at the contact between a Cretaceous or early Tertiary quartz monzonite stock and Paleozoic limestone and dolomite. The ore is a magnetite-clinohumite-hematite rock that contains up to 60 volume percent magnetite and 76 weight...
Strong-motion earthquake accelerograms digitization and analysis
A. Gerald Brady, Virgilio Perez
1978, Open-File Report 78-941
This is the third of a series of reports planned to include the results of digitization and routine analyses of strong-motion earthquake accelerograms published by the U.S. Geological Survey. Serving as a model for this effort is the collection of data reports published by the Earthquake Engineering Research Laboratory of...
Results and interpretation of geophysical studies near the Picacho Fault, south-central Arizona
Leroy W. Pankratz, Hans D. Ackermann, Robert C. Jachens
1978, Open-File Report 78-1106
Earth fissuring attributed to ground-water withdrawal occurs throughout south-central Arizona. A large zone of active fissures is located near Picacho, Arizona on the eastern rim of a large subsidence bowl. The main fissure has been named the Picacho fault. During February and March 1977, approximately 6.5 km of seismic-refraction lines...
Hydrologic monitoring of a waste-injection well near Milton, Florida, June 1975 - June 1977
Charles A. Pascale, J.B. Martin
1978, Open-File Report 78-101
This report presents the hydraulic and chemical data collected from June 1, 1975, when injection began, to June 30, 1977 through a monitoring program at a deep-well waste-injection system at the American Cyanamid Company's plant near Milton, about 12 miles northwest of Pensacola. The injection system consists of a primary...
