A simple mercury vapor detector for geochemical prospecting
William W. Vaughn
1967, Circular 540
The detector utilizes a large-volume atomic-absorption technique for quantitative determinations of mercury vapor thermally released from crushed rock. A quartz-enclosed noble-metal amalgamative stage, which is temperature controlled and is actuated by a radio-frequency induction heater, selectively traps the mercury and eliminates low-level contamination. As little as 1 part per billion...
Quality of surface waters of the United States, 1963, Parts 1 and 2, North Atlantic slope basins and south Atlantic slope and eastern Gulf of Mexico basins
S. K. Love
1967, Water Supply Paper 1947
Uranium reserves and progress in exploration and development
Arthur Pierce Butler
1967, Circular 547
Bedded barite in East Northumberland Canyon, Nye County, Nevada
Daniel R. Shawe, F. G. Poole, Donald Albert Brobst
1967, Circular 555
Bedded barite has been identified in the course of stratigraphic studies by the U.S. Geological Survey in and near East Northumberland Canyon, Toquima Range, Nye County, Nev. The barite beds are interlayered in black chert of probable Ordovician age. The barite rock is mostly dark gray and massive, has a...
Flood information for flood-plain planning
Conrad D. Bue
1967, Circular 539
Floods are natural and normal phenomena. They are catastrophic simply because man occupies the flood plain, the highwater channel of a river. Man occupies flood plains because it is convenient and profitable to do so, but he must purchase his occupancy at a price-either sustain flood damage, or provide flood-control...
Are we running out of water?
Raymond L. Nace
1967, Circular 536
Water supplies are not running out, but time is getting short to stem waste of water and destructive exploitation of the environment before harm is done that may be irreparable. Most of the world's water is oceanic brine. Of the waters on the land, most is frozen in Antarctica and...
Gold-bearing sedimentary rocks in northwest Wyoming — A preliminary report
J.C. Antweiler, J. D. Love
1967, Circular 541
No abstract available....
Quality of surface waters of the United States, 1961, Parts 9-14, Colorado River basin to Pacific slope basins in Oregon and lower Columbia River basin
S. K. Love
1967, Water Supply Paper 1885
Quality of surface waters of the United States, 1961, Parts 7 and 8, Lower Mississippi River basin and western Gulf of Mexico basins
S. K. Love
1967, Water Supply Paper 1884
Quality of surface waters of the United States, 1961, Parts 1 and 2: North Atlantic slope basins and South Atlantic slope and Eastern Gulf of Mexico basins
S. K. Love
1967, Water Supply Paper 1881
Ground water of the Piedmont and Blue Ridge provinces in the Southeastern States
H. E. LeGrand
1967, Circular 538
The aeration capacity of streams
W. B. Langbein, W. H. Durum
1967, Circular 542
Determination of gold in geologic materials by solvent extraction and atomic-absorption spectrometry
Claude Huffman, J.D. Mensik, L.B. Riley
1967, Circular 544
The two methods presented for the determination of traces of gold in geologic materials are the cyanide atomic-absorption method and the fire-assay atomic-absorption method. In the cyanide method gold is leached with a sodium-cyanide solution. The monovalent gold is then oxidized to the trivalent state and concentrated by extracting into...
Magnitude and frequency of floods in the United States: Part 11. Pacific slope basins in California — Volume 2. Klamath and Smith River basins and Central Valley drainage from the east
L. E. Young, R.W. Cruff
1967, Water Supply Paper 1686
No abstract available....
Magnitude and frequency of floods in the United States, part 11. Pacific slope basin in California: Vol.1. Coastal basins south of the Klamath River basin and Central Valley drainage from the West
L. E. Young, R.W. Cruff
1967, Water Supply Paper 1685
No abstract available....
General field and office procedures for indirect discharge measurements
M. A. Benson, Tate Dalrymple
1967, Techniques of Water-Resources Investigations 03-A1
The discharge of streams is usually measured by the current-meter method. During flood periods, however, it is frequently impossible or impractical to measure the discharges by this method when they occur. Consequently, many peak discharges must be determined after the passage of the flood by indirect methods, such as slope-area,...
Measurement of peak discharge at dams by indirect methods
Harry Hulsing
1967, Techniques of Water-Resources Investigations 03-A5
This chapter describes procedures for measuring peak discharges using dams, weirs, and embankments. Field and office procedures limited to this method are described. Discharge coefficients and formulas are given for three general classes of weirs-sharp-crested, broad-crested, and round-crested-and for highway embankments and weirs of unusual shape. The effects of...
Instructions for using the punchcard system for the storage and retrieval of ground-water data. (NOTE: This publication is no longer maintained, USGS Library still has a copy)
Solomon Max Lang, Alvin Riley Leonard
1967, Techniques of Water-Resources Investigations 7-A
Measurement of peak discharge at width contractions by indirect methods
Howard Frederick Matthai
1967, Techniques of Water-Resources Investigations 03-A4
This chapter describes procedures for measuring peak discharges using open-channel width contractions. Field and office procedures limited to this method are described. The discharge equation based on the continuity and energy equations between an approach cross section and the contracted section under a bridge or contraction is given. Contractions...
Water resources of Pulaski and Saline Counties, Arkansas
Raymond O. Plebuch, Marion S. Hines
1967, Water Supply Paper 1839-B
Ground-water conditions and geologic reconnaissance of the Upper Sevier River basin, Utah
Carl H. Carpenter, Gerald B. Robinson, Louis Jay Bjorklund
1967, Water Supply Paper 1836
The upper Sevier River basin is in south-central Utah and includes an area of about 2,400 .square miles of high plateaus and valleys. It comprises the entire Sevier River drainage basin above Kingston, including the East Fork Sevier River and its tributaries. The basin was investigated to determine general ground-water...
Water resources of the Marquette Iron Range area, Michigan
Sulo Werner Wiitala, Thomas Gwyn Newport, Earl L. Skinner
1967, Water Supply Paper 1842
Large quantities of water are needed in the beneficiation and pelletizing processes by which the ore mined from low-grade iron-formations is upgraded into an excellent raw material for the iron and steel industry. Extensive reserves of low-grade iron-formation available for development herald an intensification of the demands upon the area's...
Ground water in the Eola-Amity Hills area, northern Willamette Valley, Oregon
Don Price
1967, Water Supply Paper 1847
The Eola-Amity Hills area ,comprises about 230 square miles on the west side of the Willamette Valley between Salem and McMinnville, Oreg. The area is largely rural, and agriculture is the principal occupation. Rocks ranging in age from Eocene to Recent underlie the area. The oldest rocks are a sequence...
Determination of phenoxy acid herbicides in water by electron-capture and microcoulometric gas chromatography
D.F. Goerlitz, William L. Lamar
1967, Water Supply Paper 1817-C
A sensitive gas chromatographic method using microcoulometric titration and electron-capture detection for the analysis of 2,4-D, silvex, 2,4,5-T, and other phenoxy acid herbicides in water is described. The herbicides are extracted from unfiltered water samples (800-1,000 ml) by use of ethyl ether ; then the herbicides are concentrated and esterilied....
Ground-water resources of the Pascagoula River basin, Mississippi and Alabama
Roy Newcome
1967, Water Supply Paper 1839-K
Abundant ground-water resources underlie the Pascagoula River basin. These resources have been developed intensively in only a few places--namely, Hattiesburg, Laurel, Meridian, and Pascagoula. Seepage from the ground water reservoirs sustains the base flows of the Leaf, Chickasawhay, Pascagoula, and Escatawpa Rivers and their tributaries. The fresh-water-bearing section is 300...
