A mineralogical study of the Guanajuato, Mexico, silver ores
Ivan Franklin Wilson, Charles Milton, Joseph Rollins Houston
1975, Open-File Report 75-70
The silver-gold ores now being worked in the Guanajuato, Mexico, mining district consist chiefly of argentite and native gold-silver, with minor amounts of polybasite, pyrargyrite, and some argyrodite, a silver germanium sulfide. With these are always associated galena, sphalerite, chalcopyrite, pyrite, and minor amounts of marcasite. The gangue is generally...
Preliminary geologic map of the Westford Quadrangle, Windham and Tolland Counties, Connecticut
John D. Peper, Maurice Henry Pease
1975, Open-File Report 75-439
1943 estimate of tungsten ore reserves, Nevada Massachusetts Co., Eugene Mountains, Pershing County, Nevada
Ward Smith
1975, Open-File Report 75-320
Eocene fluvial drainage patterns and their implications for uranium and hydrocarbon exploration in the Wind River Basin, Wyoming
David Arthur Seeland
1975, Open-File Report 75-408
A review of recently active faults in Taiwan
Manuel G. Bonilla
1975, Open-File Report 75-41
Six faults associated with five large earthquakes produced surface displacements ranging from 1 to 3 m in the period 1906 through 1951. Four of the ruptures occurred in the western coastal plain and foothills, and two occurred in the Longitudinal Valley of eastern Taiwan. Maps are included showing the locations...
Preliminary geologic map and coal sections of the Wyarno Quadrangle, Sheridan County, Wyoming
W.C. Culbertson
1975, Miscellaneous Field Studies Map 723
Bibliography of reports resulting from U.S. Geological Survey technical cooperation with other countries, 1967-1974
Wenonah E. Bergquist
1975, Open-File Report 75-435
Preliminary geologic map of the Goldfield mining district, Nevada
R. P. Ashley
1975, Miscellaneous Field Studies Map 681
Environmental geologic map of the Harbor Island area, Texas
S.B. Casby
1975, Miscellaneous Field Studies Map 687
Preliminary results for borehole GM-1, Granite Mountains, Wyoming
John S. Stuckless
1975, Open-File Report 75-40
Surface water in Escambia County, Alabama
Jerald F. McCain, Patrick O. Jefferson
1975, Open-File Report 75-474
Recent man-induced modifications of the physical resources of the Redwood Creek unit of Redwood National Park, California, and the processes responsible for those modifications
Richard J. Janda
1975, Open-File Report 75-561
Low-flow Characteristics of Eau Claire River Basin near Antigo, Wisconsin
B. K. Holmstrom
1975, Open-File Report 75-336
This report presents low-flow characteristics at six sites on streams in the Eau Claire River basin near Antigo, Wis., where applications for irrigation permits were made. The low-flow characteristics presented are the annual minimum 7-day mean flows at the 2-year recurrence interval and 10-year recurrence interval. A seepage run made...
Geologic map of the northwestern part of the Pueblo 1 degree x 2 degrees Quadrangle, Colorado
Rudy C. Epis, R. A. Wobus, C. T. Wrucke, G. R. Scott, R. B. Taylor
1975, Open-File Report 75-339
Preliminary geologic map of the Owenton quadrangle, Owen and Grant Counties, Kentucky
W. C. Swadley
1975, Open-File Report 75-118
Preliminary geologic map of the Wheelwright quadrangle, southeastern Kentucky
William F. Outerbridge
1975, Open-File Report 75-257
Mineral resources of the Indian Peaks study area, Boulder and Grand Counties, Colorado
Robert Carl Pearson, Charles N. Speltz, Gordon Johnson
1975, Open-File Report 75-500
Analyses of stream sediment samples from the Teller A-3 quadrangle, Seward Peninsula, west-central Alaska
Reuben Kachadoorian, C.L. Sainsbury, C. L. Hummel
1975, Open-File Report 75-349
No abstract available....
Surface-water availability, Lawrence County, Alabama
Robert V. Chandler, Joe R. Harkins
1975, Open-File Report 75-472
Seismic engineering program report, January-March 1975
Water Resources Division, U.S. Geological Survey
1975, Circular 717-A
Drainage areas for Illinois streams
Kent M. Ogata
1975, Water-Resources Investigations Report 75-13
Drainage areas were tabulated for all streams in Illinois which drain over 100 square miles. at sites where streamflow data have been collected, and at other selected locations. Areas were planimetered on U.S. Geological Survey topographic quadrangle maps and balanced to known areas taken from Smithsonian Geographical Tables of areas of quadrilaterals of...
Geohydrology of Baca and southern Prowers counties, southeastern Colorado
L.A. Hershey, E. R. Hampton
1975, Water-Resources Investigations Report 74-16
Water availability, Lee County, Alabama
John C. Scott, Gregory C. Lines
1975, Open-File Report 75-479
The volumetric properties of aqueous sodium chloride solutions from 0 degrees to 500 degrees C at pressures up to 2000 bars based on a regression of the available literature data
Robert W. Potter, David L. Brown
1975, Open-File Report 75-636
Mineral resource management of the Outer Continental Shelf : leasing procedures, evaluation of resources, and supervision of production operations on leased lands of the Outer Continental Shelf
Maurice V. Adams, C.B. John, R.F. Kelly, A.E. LaPointe, R.W. Meurer
1975, Circular 720
An important function of the Geological Survey is the evaluation and management of the mineral resources of the Outer Continental Shelf, particularly with respect to oil and gas, salt, and sulfur. Production of oil and gas from the Outer Continental Shelf of the United States has increased substantially over the...
