An evaluation of the zircon method of isotopic dating in the southern Arabian Craton, Kingdom of Saudi Arabia
J.A. Cooper, J. S. Stacey, D. B. Stoeser, R.J. Fleck
1979, Open-File Report 79-1187
A zircon study has been made on 11 samples of igneous rocks from the Saudi Arabian craton. Ages of sized and magnetic fractions of zircon concentrates show variable degrees of discordance, which seem to result from a very young disturbance that produces linear arrays in the Concordia plot. Model age...
Hydrologic and human aspects of the 1976-77 drought
Howard F. Matthai
1979, Professional Paper 1130
The drought of 1976-77 was the most severe in at least 50 years in many parts of the United States. Record low amounts of rainfall, snowfall, and runoff, and increased withdrawals of ground water were prevalent. The use of carry-over storage in reservoirs during 1976 maintained streamflow at near normal...
Ground-water resources of Monroe County, Pennsylvania
Louis D. Carswell, Orville B. Lloyd Jr.
1979, Open-File Report 79-414
Monroe County is on the eastern border of Pennsylvania and includes much of the area popularly called the Poconos. It is an area long used for outdoor recreation and includes a part of the Delaware Water Gap National Recreation Area.Water resources in the county are derived from precipitation. The Lehigh...
Application of transient-flow model to the Sacramento River at Sacramento, California
R.N. Oltmann
1979, Water-Resources Investigations Report 78-119
The transient-flow simulation model was applied to the Sacramento River at Sacramento, Calif. An alternative is needed to the empirical stage-fall-discharge computational method, which provides only daily mean discharges and requires frequent measurement over a 25- to 26-hour period of the tide-affected flow. Measurement of tide-affected flow involves use of...
Seismicity map of the State of Louisiana
C. W. Stover, B.G. Reagor, S. T. Algermissen
1979, Miscellaneous Field Studies Map 1081
This map is one of a series of seismicity maps produced by the U. S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. This map shows only those earthquakes with epicenters located within the boundaries of Louisiana, even though earthquakes...
A one-dimensional, steady-state, dissolved-oxygen model and waste-load assimilation study for South Fork Wildcat Creek, Clinton County, Indiana
Charles G. Crawford, William G. Wilber, James G. Peters
1979, Open-File Report 79-1074
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 South Fork Wildcat Creek was used to predict alternatives for future waste loadings that would be compatible with Indiana...
Modeling sandhill crane population dynamics
Douglas H. Johnson
1979, Special Scientific Report - Wildlife 222
Petroleum geology of Cook Inlet basin, Alaska: An exploration model
Leslie B. Magoon, George E. Claypool
1979, Open-File Report 79-548
No abstract available....
Prediction of vertical displacements in a subsiding elastic layer: a model for subsidence in karst terrains
William Z. Savage
1979, Open-File Report 79-1094
The Yampa River basin, Colorado and Wyoming : a preview to expanded coal-resource development and its impacts on regional water resources
Timothy Doak Steele, D. P. Bauer, D.A. Wentz, J. W. Warner
1979, Water-Resources Investigations Report 78-126
Expanded coal production and conversion in the Yampa River basin , Colorado and Wyoming, may have substantial impacts on water resources, environmental amenities, and socioeconomic conditions. Preliminary results of a 3-year basin assessment by the U.S. Geological Survey are given for evaluation of surface- and ground-water resources using available data,...
Ground-water appraisal for the community of Kiryas Joel, Orange County, New York
Roger M. Waller
1979, Open-File Report 79-401
A major fracture system in indurated sedimentary rocks forms a moderately extensive aquifer yielding 100-300 gallons per minute to wells 160 to 420 feet deep. Pumping-test data show that the fracture system is interconnected to distances more than 1,000 feet from the wells. Recharge occurs through overlying clayey till, and...
A one-dimensional, steady-state, dissolved-oxygen model and waste-load assimilation study for Sand Creek, Decatur County, Indiana
William G. Wilber, Charles G. Crawford, James G. Peters
1979, Open-File Report 79-1344
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 Sand Creek was used to develop alternatives for future waste loadings that would be compatible with Indiana stream water-quality...
Catalog of earthquakes in southern Alaska: January-March 1978
C.D. Stephens, J.C. Lahr, K.A. Fogleman, M.A. Allan, S.M. Helton
1979, Open-File Report 79-718
The National Center for Earthquake Research of the U.S. Geological Survey (USGS) began a program of telemetered seismic recording in south-central Alaska in 1971. The principal objectives of this program have been to use data recorded by this network to precisely locate earthquakes in the active seismic zones of southern...
Revision of the documentation for a model for calculating effects of liquid waste disposal in deep saline aquifers
Inc. INTERA Environmental Consultants
1979, Water-Resources Investigations Report 79-96
The model developed under this contract is a modified version of the deep well disposal model developed by INTERCOMP Resource Development and Engineering, Inc., for the U.S. Geological Survey (A model for calculating effects of liquid waste disposal in deep saline aquifers). The model is a finite-difference numerical solution of...
Estimated drawdowns in the Floridan aquifer due to increased withdrawals, Duval County, Florida
Bernard J. Franks, G. G. Phelps
1979, Water-Resources Investigations Report 79-84
Hydrologic investigations of the Floridan aquifer in Duval County, Florida, have shown that an appropriate simplified model of the aquifer system consists of a series of sub aquifers separated by semipermeable beds. Data from more than 20 aquifer tests were reanalyzed by the Hantush modified method, which takes into account...
A study of global sand seas
Edwin D. McKee, editor(s)
1979, Professional Paper 1052
The birth of the idea that led to this publication on "Global Sand Seas" dates back to the late 1920's. At that time I was engaged in a study of the Coconino Sandstone of Arizona's Grand Canyon. Considerable controversy existed then as to whether this sandstone was a subaqueous deposit or...
The magnetic charts of the United States for Epoch 1975
Eugene B. Fabiano, W. J. Jones, Norman W. Peddie
1979, Circular 810
Approximately 24,000 measurements taken from 1900 to 1974 were analyzed by least-squares methods to produce a series of five magnetic charts of the United States for 1975. A feature of the analysis, differing from techniques used for previous editions of the national chart, is that analytic models define the regional...
Digital-transport model study of Diisopropylmethylphosphonate (DIMP) ground-water contamination at the Rocky Mountain Arsenal, Colorado
James W. Warner
1979, Open-File Report 79-676
Diisopropylmethylphosphonate (DIMP) is an organic compound produced as a byproduct of the manufacture and detoxification of GB nerve gas. Ground-water contamination by DIMP from the disposal of wastes into unlined surface ponds at the Rocky Mountain Arsenal occurred from 1952 to 1956. A digital-transport model was used to determine the...
Coal resource occurrence and coal development potential maps of the southwest quarter of North Star School 15' quadrangle, Campbell County, Wyoming
IntraSearch Inc.
1979, Open-File Report 79-66
A study of the water resources of the Port Gamble Indian Reservation, Wash., has shown that there is probably a substantial quantity of good quality ground and surface water available to provide for further development of the reservation. Groundwater supplies are available from an artesian aquifer underlying the reservation near...
Possible uranium mineralization, Mineral Mountains, Utah
W. Roger Miller, John B. McHugh, Walter H. Ficklin
1979, Open-File Report 79-1354
The Mineral Mountains block in west-central Utah is a horst whose core stands structurally high relative to all nearby basin-and-range fault blocks. Rocks of the Mineral Mountains range from Precambrian to Quaternary in age, but mostly consist of Tertiary granitic rocks. The range lies with the Wah Wah-Tusher mineral belt....
Preconstruction and postconstruction ground-water levels, Lock and Dam 1, Red River Valley, Louisiana
A. H. Ludwig
1979, Open-File Report 79-918
Proposed construction of a series of locks and dams in the Red River in Louisiana will cause a permanent increase in average river stage. The potentiometric surface of the shallow alluvial aquifer and the water table in the fine-grained material confining the aquifer will be affected. The purpose of this...
Geology, petrology, and chemistry of the Leadville Dolomite: host for uranium at the Pitch Mine, Saguache County, Colorado
J. Thomas Nash
1979, Open-File Report 79-1566
Newly documented uranium ore in the Pitch Mine occurs chiefly in brecciated Mississippian Leadville Dolomite along the Chester reverse fault zone, and to a lesser extent in sandstone, siltstone, and carbonaceous shale of the Pennsylvanian Belden Formation and in Precambrian granitic rocks and schist. Uranium-mineralized zones are generally thicker, more...
A one-dimensional, steady-state, dissolved-oxygen model and waste-load assimilation study for West Fork Blue River, Washington County, Indiana
James G. Peters, William G. Wilber, Charles G. Crawford, Frank P. Girardi
1979, Open-File Report 79-1479
The Indiana State Board of Health is developing a water-quality management plan that includes establishing limits for wastewater effluents discharged into Indiana streams. A digital model calibrated to conditions in West Fork Blue River was used to predict alternatives for future waste loadings that would be compatible with Indiana stream...
Paleontologic and stratigraphic relations of phosphate beds in Upper Cretaceous rocks of the Cordillera Oriental, Colombia
Edwin K. Maughan, Francisco Zambrano O., Pedro Mojica G., Jacob Abozaglo M., Fernando Pachon P., Raul Duran R.
1979, Open-File Report 79-1525
Phosphorite crops out in the Cordillera Oriental of the Colombian Andes in rocks of Late Cretaceous age as strata composed mostly of pelletal carbonate fluorapatite. One stratum of Santonian age near the base of the Galembo Member of the La Luna Formation crops out at many places in the Departments...
Backwater at bridges and densely wooded flood plains, Thompson Creek near Clara, Mississippi
B.E. Colson, C. O. Ming, George J. Arcement
1979, Hydrologic Atlas 597
Floodflow data that will provide a base for evaluating digital models relating to open-channel flow were obtained at 22 sites on streams in Alabama, Louisiana, and Mississippi. Thirty-five floods were measured. Analysis of the data indicated methods currently in use would be inaccurate where densely vegetated flood plains are crossed...
