Hydrogeologic sections of the Edwards Aquifer and its confining units in the San Antonio area, Texas
Ted A. Small
1986, Water-Resources Investigations Report 85-4259
Twenty-seven geohydrology sections illustrate structural and stratigraphic relationships within the 180-mi-long Edwards aquifer. These sections were used to interpret the location of barriers within the Edwards aquifer. The sections are oriented generally south-southeast, which is approximately normal to both the east-northeast trending Edwards aquifer and the strike of the major...
A soil-gas helium survey of the Hualapai Indian Reservation, Northwest Arizona
C.G. Bowles, G.M. Reimer
1986, Open-File Report 86-36
U-Pb isotopic evidence for accretion of a continental microplate in the Zalm region of the Saudi Arabian Shield
J. S. Stacey, R.A. Agar
1986, Open-File Report 86-166
The region covered by this work includes three of the main tectonic units of the Arabian Shield: the Afif continental terrane, the Nabitah suture with its associated mobile belt, and the Asir ensimatic arc terrane. The geology of the area is well understood, and this geochronologic and isotopic study confirms...
Geohydrology and ground-water quality on Shelter Island, Suffolk County, New York, 1983-84
D. L. Simmons
1986, Water-Resources Investigations Report 85-4165
Shelter Island, with an area of about 11 sq mi, lies between the north and south forks of eastern Long Island in Suffolk County. The thin upper glacial (water table) aquifer contains the lens-shaped freshwater body that is the sole source of freshwater for the Town 's population of about...
Cost effectiveness of the stream-gaging program in Ohio
H.L. Shindel, W.P. Bartlett
1986, Water-Resources Investigations Report 85-4072
This report documents the results of the cost effectiveness of the stream-gaging program in Ohio. Data uses and funding sources were identified for 107 continuous stream gages currently being operated by the U.S. Geological Survey in Ohio with a budget of $682,000; this budget includes field work for other projects...
Mineral resource potential for tin and tungsten in the Charlotte 1 degree x 2 degrees quadrangle, North Carolina and South Carolina
Jacob E. Gair
1986, IMAP 1251-I
No abstract available....
Suspended sediment in Minnesota streams
L. H. Tornes
1986, Water-Resources Investigations Report 85-4312
Suspended-sediment samples have been collected by the U.S. Geological Survey from 115 sites on Minnesota streams since October 1960. Data from 42 sites were sufficient for characterizing sediment concentrations and yields. Average concentrations ranged from 4.4 milligrams per liter on the Baptism River in northeastern Minnesota to 190 milligrams per...
Geologic map and cross sections of the Sapello River area, Sangre de Cristo Mountains, Mora and San Miguel counties, New Mexico
Elmer H. Baltz, J.M. O’Neill
1986, IMAP 1575
No abstract available. ...
Estimating peak discharges, flood volumes, and hydrograph shapes of small ungaged urban streams in Ohio
J. M. Sherwood
1986, Water-Resources Investigations Report 86-4197
Methods are presented for estimating peak discharges, flood volumes and hydrograph shapes of small (less than 5 sq mi) urban streams in Ohio. Examples of how to use the various regression equations and estimating techniques also are presented. Multiple-regression equations were developed for estimating peak discharges having recurrence intervals of...
Computer programs for computing particle-size statistics of fluvial sediments
H.H. Stevens, D. W. Hubbell
1986, Water-Resources Investigations Report 86-4141
Two versions of computer programs for inputing data and computing particle-size statistics of fluvial sediments are presented. The FORTRAN 77 language versions are for use on the Prime computer, and the BASIC language versions are for use on microcomputers. The size-statistics program compute Inman, Trask , and Folk statistical parameters...
Analytical results for samples of nonmagnetic heavy-mineral concentrates from the Tonopah 1° x 2° quadrangle, Nevada
D. F. Siems, M. L. Marchitti, J. T. Nash
1986, Open-File Report 86-213
No abstract available....
Cost effectiveness of the US Geological Survey's stream-gaging programs in New Hampshire and Vermont
J.A. Smath, F.E. Blackey
1986, Water-Resources Investigations Report 85-4173
Data uses and funding sources were identified for the 73 continuous stream gages currently (1984) being operated. Eight stream gages were identified as having insufficient reason to continue their operation. Parts of New Hampshire and Vermont were identified as needing additional hydrologic data. New gages should be established in these...
Geologic map of the Murphys Well, Pilot Cone, Copper Mountain, and Poinsettia Spring quadrangles, Mineral County, Nevada
E. B. Ekren, F.M. Byers Jr.
1986, IMAP 1576
Resource appraisal map for porphyry molybdenum-tungsten, platinum-group metals, and epithermal silver deposits in the Wallace 1° x 2° quadrangle, Montana and Idaho
J. E. Harrison, D. L. Leach, M. D. Kleinkopf, C. L. Long
1986, IMAP 1509-H
No abstract available....
Cost-effectiveness of the U.S. Geological Survey stream-gaging program in Indiana
J. A. Stewart, R. L. Miller, G.K. Butch
1986, Water-Resources Investigations Report 85-4343
Analysis of the stream gaging program in Indiana was divided into three phases. The first phase involved collecting information concerning the data need and the funding source for each of the 173 surface water stations in Indiana. The second phase used alternate methods to produce streamflow records at selected sites....
Water quality and flow of streams in Santa Clara Valley, Santa Clara County, California, 1979-81
M. A. Sylvester
1986, Water-Resources Investigations Report 84-4196
The effects of urbanization on floods in the Austin metropolitan area, Texas
Jack E. Veenhuis, David G. Gannett
1986, Water-Resources Investigations Report 86-4069
The effects of urbanization on flood peaks in streams in the Austin metropolitan area were studied in two separate analyses. In the first analysis, annual peak discharge records at 13 streamflow-gaging sites were used to compute a recorded flood frequency relation for each site. Rainfall and streamflow data for 10...
Geologic map of the Belvidere Mountain area, Eden and Lowell, Vermont
M.H. Gale
1986, IMAP 1560
Mineral resource potential for uranium and thorium in the Charlotte 1° x 2° quadrangle, North Carolina and South Carolina
J. E. Gair
1986, IMAP 1251-L
No abstract available....
Mineral resource potential for gold in the Charlotte 1° x 2° quadrangle, North Carolina and South Carolina
J. E. Gair, J. P. D’Agostino
1986, IMAP 1251-H
No abstract available....
Mineral resource potential for copper, lead, zinc, and combined base metals in the Charlotte 1° x 2° quadrangle, North Carolina and South Carolina
J. E. Gair, W. R. Griffitts
1986, IMAP 1251-G
No abstract available....
Map showing faults and earthquake epicenters in San Mateo County, California
E. E. Brabb, J. A. Olson
1986, IMAP 1257-F
No abstract available....
Notes on cathodoluminescence microscopy using the Technosyn stage, and a bibliography of applied cathodoluminescence
C.E. Barker, Teresa Wood
1986, Open-File Report 86-85
A low-cost digital recording and display system for Beckman UV 5200 series spectrophotometers
J.K. Crowley, David M. Sherman, I.J. Bennett
1986, Open-File Report 86-27
Gravity anomaly map of the United States; Part A: Conterminous United States
Water Resources Division, U.S. Geological Survey
1986, Geophysical Investigations Map 964
No abstract available....
