Quality of surface waters of the United States, 1950. Parts 7 and 8, lower Mississippi River Basin and western Gulf of Mexico basins
S. K. Love
1968, Water Supply Paper 1188
Airborne electromagnetic and total intensity magnetic profiles in vicinity of the Haile, Brewer, and Blackmon mines, Lancaster, Chesterfield, and Kershaw Counties, South Carolina
Water Resources Division, U.S. Geological Survey
1968, Open-File Report 68-296
No abstract available....
Maps showing structure, overburden, and thickness for a rich oil-shale sequence in the Eocene Green River Formation, east-central Uinta Basin, Utah and Colorado
W. B. Cashion
1968, Open-File Report 68-33
No abstract available....
Aeromagnetic map of the Wolcott-Boulder area, north-central Colorado
E.P. Smith, B.D. Marcellus
1968, Open-File Report 68-295
No abstract available....
Cassiterite in gold placers at Humboldt Creek, Serpentine-Kougarok area, Seward Peninsula, Alaska
C.L. Sainsbury, Reuben Kachadoorain, T. E. Smith, W. C. Todd
1968, Circular 565
No abstract available....
Fluvial monazite deposits in the southeastern United States, with a section on mineral analyses
William C. Overstreet, A. M. White, J. W. Whitlow, P. K. Theobald Jr., D. W. Caldwell, N. P. Cuppels, Jerome Stone
1968, Professional Paper 568
No abstract available....
Aeromagnetic map of the Eureka region, Eureka and White Pine Counties, Nevada
B.D. Marcellus, F.A. Petrafeso
1968, Open-File Report 68-284
No abstract available....
Geologic map of southeastern part of Lander County, Nevada
John H. Stewart, Edwin H. McKee
1968, Open-File Report 68-260
Preliminary materials map of the Woronoco quadrangle, Massachusetts
George William Holmes
1968, Open-File Report 68-136
No abstract available....
Geologic map of the complex of alkalic rocks at Iron Hill, Gunnison County, Colorado
D. C. Hedlund, J. C. Olson
1968, Open-File Report 68-124
No abstract available....
Travel rates of water for selected streams in the Willamette River basin, Oregon
David Dell Harris
1968, Hydrologic Atlas 273
Geologic map of the Riverside quadrangle, Butler and Warren Counties, Kentucky
Fred R. Shawe
1968, Geologic Quadrangle 736
Ground-water geology of Kordofan Province, Sudan
Harry G. Rodis, Abdulla Hassan, Lutfi Wahadan
1968, Water Supply Paper 1757-J
For much of Kordofan Province, surface-water supplies collected and stored in hafirs, fulas, and tebeldi trees are almost completely appropriated for present needs, and water from wells must serve as the base for future economic and cultural development. This report describes the results of a reconnaissance hydrogeologic investigation of the...
Regional geology and ground-water hydrology of the Sahil Susah area, Tunisia
L.C. Dutcher, H. E. Thomas
1968, Water Supply Paper 1757-G
Geochemical anomalies in the Swales Mountain area, Elko County, Nevada
Keith Brindley Ketner, James George Evans, Thomas D. Hessin
1968, Circular 588
Platinum and associated elements at the New Rambler mine and vicinity, Albany and Carbon Counties, Wyoming
P. K. Theobald, Charles Emmet Thompson
1968, Circular 607
Platinum-group metals in the Medicine Bow Mountains were first identified by W. C. Knight in 1901. In the Medicine Bow Mountains, these metals are commonly associated with copper, silver, or gold in shear zones that cut a series of mafic igneous and metamorphic rocks. At the New Rambler mine, where...
Geologic map of the Leadore quadrangle, Lemhi County, Idaho
Edward Thompson Ruppel
1968, Geologic Quadrangle 733
No abstract available....
Analysis of water quality of the Mahoning River in Ohio
Gene A. Bednar, Charles R. Collier, William Perry Cross
1968, Water Supply Paper 1859-C
The Mahoning River drains the densely populated and industrialized Warren-Youngstown area in northeastern Ohio. Significant chemical constituents and physical properties generally regarded as important in establishing water-quality standards for the Mahoning River are evaluated on the basis of hydrologic conditions and water use. Most of the interpretations and the appraisal...
Silver in veins of hypogene manganese oxides
D. F. Hewett
1968, Circular 553
Geologic map of the Greensburg quadrangle, Green and Taylor Counties, Kentucky
Alfred R. Taylor, Stanley J. Luft, Richard Quintin Lewis
1968, Geologic Quadrangle 739
Index of surface-water records to September 30, 1967 - Part 6, Missouri River basin
H.P. Eisenhuth
1968, Circular 576
Reconnaissance investigations of the discharge and water quality of the Amazon River
Roy Edwin Oltman
1968, Circular 552
Selected published estimates of the discharge of Amazon River in the vicinity of Obidos and the mouth are presented to show the great variance of available information. The most reasonable estimates prepared by those who measured some parameters of the flow were studied by Maurice Parde, who concluded that the...
Interpreting pan-concentrate analysis of stream sediments in geochemical exploration for gold
Richard Philip Fischer, Frederick S. Fisher
1968, Circular 592
A study of methods of collecting and processing samples to determine whether or not gold is present in areas of moderate size was undertaken in the northwestern part of the San Juan Mountains, Colo. As part of this study, 57 samples of pan concentrates were taken from streams draining three...
Summary of the geology and ground-water resources of Pitt County, North Carolina
C. T. Sumsion
1968, Hydrologic Atlas 291
Geochemical prospecting for zinc, lead, copper, and silver, Lancaster Valley, southeastern Pennsylvania
Jacob Freedman
1968, Open-File Report 68-106