The geologic history of the Moon
Don E. Wilhelms, John F. McCauley, Newell J. Trask
1987, Professional Paper 1348
More than two decades of study have established the major features of lunar geologic style and history. The most numerous and significant landforms belong to a size-morphology series of simple craters, complex craters, and ringed basins that were formed by impacts. Each crater and basin is the source of primary...
Prediction of the effects of mine dewatering on four lakes near Crandon, Wisconsin, by use of a water-budget model
William R. Krug, Nile A. Ostenso, J. T. Krohelski
1987, Open-File Report 87-471
The effects of dewatering a proposed zinc and copper mine on water levels of four lakes near Crandon, Wisconsin, were predicted by use of a digital water-budget model of the lakes. The average lake-stage reduction predicted by the model for expected ground-water levels after mine dewatering ranged from 0.21 feet for...
The Beringian ancestry of Phenacomys (Rodentia: Cricetidae) and the beginning of the modern Arctic Ocean borderland biota
Charles Albert Repenning, E. M. Brouwers, L. D. Carter, Louie Marincovich Jr., T. A. Ager
1987, Bulletin 1687
No abstract available....
Petrology and sedimentology of the Horlick Formation (Lower Devonian), Ohio Range, Transantarctic Mountains
Lucy McCartan, Margaret A. Bradshaw
1987, Bulletin 1780
The Horlick Formation of Early Devonian age is as thick as 50 m and consists of subhorizontal, interbedded subarkosic sandstone and chloritic shale and mudstone. The Horlick overlies an erosion surface cut into Ordovician granitic rocks and is, in turn, overlain by Carboniferous and Permian glacial and periglacial deposits. Textures,...
Mineral Resources of the Antelope Wilderness Study Area, Nye County, Nevada
Richard F. Hardyman, Forrest G. Poole, Frank J. Kleinhampl, Robert L. Turner, Donald Plouff, Joe S. Duval, Fredrick L. Johnson, David A. Benjamin
1987, Bulletin 1731-E
At the request of the U.S. Bureau of land Management, 83,100 acres of the Antelope Wilderness Study Area (NV-4)60-231/241) was studied. In this report the studied area is called the 'wilderness study area', or simply the 'study area.' No identified mineral or energy resources occur within the study area. The...
Mineral resources of the Fort Piute Wilderness Study Area, San Bernardino County, California
Jane E. Nielson, James G. Frisken, Robert C. Jachens, John R. McDonnell Jr.
1987, Bulletin 1713-C
The Fort Piute Wilderness Study Area (CDCA-267) is in northeastern San Bernardino County, California, near the boundary between California and Nevada. Mineral surveys were requested for 31,371 acres of the Fort Piute Wilderness Study Area. In this report the area studied is referred to as "the study area". Examination of...
Hydrologic hazards along Squaw Creek from a hypothetical failure of the glacial moraine impounding Carver Lake near Sisters, Oregon
Antonius Laenen, K. M. Scott, J. E. Costa, L.L. Orzol
1987, Open-File Report 87-41
A hydrologic hazard exists that could create a large-magnitude, but short-duration, flood in the Squaw Creek drainage and inundate areas in and around the community of Sisters, Oregon. There is a 1 to 5% probability that Carver Lake, located at elevation 7,800 ft above sea level on the east slope...
FASPUM metric version; analytic petroleum resource appraisal microcomputer programs for play analysis using a reservoir-engineering model; B, Program disk
Robert A. Crovelli, Richard H. Balay
1987, Open-File Report 87-414-B
Estimation of the recharge area contributing water to a pumped well in a glacial-drift, river-valley aquifer
D. J. Morrissey
1987, Open-File Report 86-543
The highly permeable, unconfined, glacial drift aquifers that occupy most New England river valleys constitute the principal source of drinking water for many communities that obtain part or all of their public water supply from groundwater. Analytical , two-dimensional numerical and three-dimensional numerical models were used to delineate contributing areas...
Hydraulic analyses of water-surface profiles in the vicinity of the Coamo Dam and Highway 52 bridge, southern Puerto Rico: Flood analyses as related to the flood of October 7, 1985
K. G. Johnson, Ferdinand Quinones-Marquez, Ralph Gonzalez
1987, Water-Resources Investigations Report 87-4039
The magnitude, frequency and extent of the flood of October 7, 1985 at the Rio Coamo in the vicinity of the Coamo Dam and Highway 52 bridge in southern Puerto Rico, were investigated. The observed flood profiles were used to calibrate a step-backwater model. The calibrated model was then used...
Discharge ratings for control gates at Mississippi River lock and dam 17, New Boston, Illinois
A.J. Heinitz
1987, Water-Resources Investigations Report 87-4165
The water levels of the navigation pools on the Mississippi River are maintained by the operation of tainter and roller gates at the locks and dams. Discharge ratings for the gates on Lock and Dam 17, at New Boston, Illinois, were developed from current meter discharge measurements made in the...
Comparison of conceptually based and regression rainfall-runoff models, Denver Metropolitan area, Colorado, and potential applications in urban areas
J. B. Lindner-Lunsford, S. R. Ellis
1987, Water-Resources Investigations Report 87-4104
Multievent, conceptually based models and a single-event, multiple linear-regression model for estimating storm-runoff quantity and quality from urban areas were calibrated and verified for four small (57 to 167 acres) basins in the Denver metropolitan area, Colorado. The basins represented different land-use types - light commercial, single-family housing, and multi-family...
Discharge ratings for control gates at Mississippi River Lock and Dam 18, Gladstone, Illinois
A.J. Heinitz
1987, Water-Resources Investigations Report 87-4110
The water level of the navigation pools on the Mississippi River are maintained by the operation of tainter and roller gates at the locks and dams. Discharge ratings for the gates on Lock and Dam 18, at Gladstone, Illinois, were developed from current meter discharge measurements made in the forebays...
Discharge ratings for control gates at Mississippi River lock and dam 21, Quincy, Illinois
A.J. Heinitz
1987, Water-Resources Investigations Report 87-4155
The water levels of the navigation pools on the Mississippi River are maintained by the operation of tainter and roller gates at the locks and dams. Discharge ratings for the gates on Lock and Dam 21, at Quincy, Illinois, were developed from current meter discharge measurements made in the forebays...
Simulated flood discharges and elevations for the Savannah River, South Carolina and Georgia, using an unsteady streamflow model
B.B. McDonald, C.L. Sanders
1987, Water-Resources Investigations Report 84-4158
Assessment of water quality and factors affecting dissolved oxygen in the Sangamon River, Decatur to Riverton, Illinois, summer 1982
A.R. Schmidt, J. K. Stamer
1987, Water-Resources Investigations Report 87-4024
Water quality and processes that affect the dissolved-oxygen concentration in a 45.9 mile reach of the Sangamon River from Decatur to Riverton, Illinois, were determined from data collected during low-flow periods in the summer of 1982. Relations among dissolved oxygen, water discharge, biochemical oxygen demand, ammonia and nitrite plus nitrate...
HST3D; a computer code for simulation of heat and solute transport in three-dimensional ground-water flow systems
K.L. Kipp
1987, Water-Resources Investigations Report 86-4095
The Heat- and Soil-Transport Program (HST3D) simulates groundwater flow and associated heat and solute transport in three dimensions. The three governing equations are coupled through the interstitial pore velocity, the dependence of the fluid density on pressure, temperature, the solute-mass fraction , and the dependence of the fluid viscosity on...
Oblique map of the northern Sierra Nevada, California, showing location of gold-bearing areas
T. R. Alpha, F. C. W. Dodge, J. D. Bliss
1987, Miscellaneous Field Studies Map 1981
More than a third of the gold produced by the United States was mined in California. The bulk of this gold was recovered from the western slope of the northern half of the Sierra Nevada between the Merced River in the south and the Feather River to the north, a...
Documentation of computer program VS2D to solve the equations of fluid flow in variably saturated porous media
E.G. Lappala, R. W. Healy, E.P. Weeks
1987, Water-Resources Investigations Report 83-4099
This report documents FORTRAN computer code for solving problems involving variably saturated single-phase flow in porous media. The flow equation is written with total hydraulic potential as the dependent variable, which allows straightforward treatment of both saturated and unsaturated conditions. The spatial derivatives in the flow equation are approximated by...
Shore erosion as a sediment source to the tidal Potomac River, Maryland and Virginia
Andrew J. Miller
1987, Water Supply Paper 2234-E
The shoreline of the tidal Potomac River attained its present form as a result of the Holocene episode of sea-level rise; the drowned margins of the system are modified by wave activity in the shore zone and by slope processes on banks steepened by basal-wave erosion. Shore erosion leaves residual...
Reconnaissance of geohydrologic areas and 1981 low-flow conditions, Withlacoochee River basin, southwest Florida Water Management District
J. O. Kimrey, Warren Anderson
1987, Water-Resources Investigations Report 86-4203
The Withlacoochee River Basin of the Southwest Florida Water Management District is a management area of about 2030 sq mi in west-central Florida containing large reserves of potable water in the Upper Floridan aquifer. Results of reconnaissance test drilling indicate that the Upper Floridan aquifer may be treated as an...
Effects of runoff controls on the quantity and quality of urban runoff at two locations in Austin, Texas
Clarence T. Welborn, Jack E. Veenhuis
1987, Water-Resources Investigations Report 87-4004
Rapid urban development in the Austin metropolitan area, Texas, is causing concern about increasing peak discharges from storm runoff and the degradation of the quality of water in receiving streams, lakes, and aquifers. In an attempt to decrease peak discharges and improve water quality, runoff controls are being required in...
Three-dimensional model simulation of transient ground-water flow in the Albuquerque-Belen Basin, New Mexico
J. M. Kernodle, Ryan S. Miller, W. B. Scott
1987, Water-Resources Investigations Report 86-4194
A three-dimensional digital model that simulates transient flow in the alluvial aquifer system underlying the Albuquerque-Belen Basin, New Mexico, was constructed as part of a regional aquifer study of the southwest alluvial basins. The model simulates hydraulic heads and changes in hydraulic heads for 1907 to 1979. Hydraulic-conductivity values used...
Geology and hydrology of the Onondaga aquifer in eastern Erie County, New York, with emphasis on ground-water-level declines since 1982
W. W. Staubitz, Todd S. Miller
1987, Water-Resources Investigations Report 86-4317
The Onondaga aquifer is a nearly flat-lying, 25- to 110-foot-thick, cherty limestone with moderately developed karst features such as sinkholes, disappearing streams, and solution-widened joints. Most groundwater moves through solution-widened bedding planes, although some moves through vertical joints. The yield of water from 42 wells ranges from 3 to 100...
Interpretation of the regional geochemistry of the Tonopah 1 degree by 2 degrees Quadrangle, Nevada, based on analytical results from stream-sediment and nonmagnetic heavy-mineral-concentrate samples
J. T. Nash
1987, Open-File Report 87-595
Results of more than 2,400 analyses of <0.25-mm fraction of stream sediments and nonmagnetic heavy-mineral concentrates from stream sediments from 1,217 sites in the Tonopah quadrangle demonstrate the existence of anomalous concentrations of many metals of economic interest in many areas. Single-element anomalies of As, Pb, or Sb in stream...
