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Page 5144, results 128576 - 128600

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Studies of the Permian Phosphoria Formation and related rocks, Great Basin-Rocky Mountain region
Bruce R. Wardlaw
1979, Professional Paper 1163-A-D
PART A: The transgression of the Permian Retort Phosphatic Shale Member of the Phosphoria Formation is dated by the occurrence of diagnostic brachiopods. The complex pattern of this transgression reflects the paleogeography and indicates two initial basins of deposition: one in southwestern Montana and one in southeastern Idaho. PART B:...
Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Bering Glacier, Icy Bay, Middleton Island, and Yakutat quadrangles, Alaska
Edward Huntington Cobb
1979, Open-File Report 79-1246
This summary of references is designed to aid in library research on metallic and nonmetallic (other than mineral fuels and construction materials) mineral occurrences in the Bering Glacier, Icy Bay, Middleton Island, and Yakutat quadrangles, Alaska. References to most reports of the Geological Survey, U.S. Bureau of Mines, and State...
DITT: a computer program for Data Interpretation for Torsional Tests
Albert T.F. Chen
1979, Open-File Report 79-1463
Measurements of the helium concentration of soil samples collected and stored in Vacutainer-brand evacuated glass tubes show that Vacutainers are reliable containers for soil collection. Within the limits of reproducibility, helium content of soils appears to be independent of variations in soil temperature, barometric pressure, and quantity of soil moisture...
Water-quality conditions in the New River, Imperial County, California
James G. Setmire
1979, Water-Resources Investigations Report 79-86
The New River, when entering the United States at Calexico, Calif., often contains materials which have the appearance of industrial and domestic wastes. Passage of some of these materials is recognized by a sudden increase in turbidity over background levels and the presence of white particulate matter. Water samples taken...
Radioactive springs geochemical data related to uranium exploration: basic data and use of multivariate factor scores
Robert Allen Cadigan, J. Karen Felmlee
1979, Open-File Report 79-1302
Radioactive springs and wells at 33 localities in the States of Colorado, Utah, Arizona, and New Mexico have been studied and sampled to obtain geochemical data to determine whether such data are useful in a uranium exploration program. Most samples were collected from mineral-rich springs probably related to hydrothermal systems...
General geology and mines of the East Tintic mining district, Utah and Juab counties, Utah, with sections on the geology of the Burgin mine and the geology of the Trixie mine
H. T. Morris, Thomas Seward Lovering, A. P. Mogensen, W.M. Shepard, L. I. Perry, S. M. Smith
1979, Professional Paper 1024
This report is a study of the rocks, geologic structures, and mines of a highly productive silver, gold, and base-metal mining district in the east-central Great Basin. The East Tintic mining district is in the east-central part of the East Tintic Mountains, near the east margin of the Basin and...
Geometric considerations for an automated mapping satellite system (Mapsat)
Alden P. Colvocoresses
1979, Open-File Report 79-914
The geometry of the frame photograph whether taken from an aircraft or a satellite is well known and documented. Transforming photographs into maps is a relatively slow and expensive process which for many critical steps defies automation. A satellite offers the unique advantages of greater stability and uniform velocity over...
Alaskan papers and abstracts published in American Association of Petroleum Geologists Bulletin, 1950-1978, indexed by quadrangle
Edward Huntington Cobb
1979, Open-File Report 79-1475
This open—file report lists all papers and abstracts on the geology and mineral resources of Alaska published in the American Association of Petroleum Geologists Bulletin from 1950 through 1978. They are listed by the quadrangles (scale 1:250,000) into which Alaska has been subdivided for topographic mapping (p. 2).Reports that deal...
Flood profiles of the Pithlachascotee River, west-central Florida
J. F. Turner, W. R. Murphy Jr., C. V. Reeter
1979, Water-Resources Investigations Report 78-100
Data defining the magnitude and frequency of flooding are provided for a nontidal 16-mile reach of the Pithlachascotee River in Florida. These data include areal flood-frequency relations and flood heights for the 2-, 2.33-, 5-, 10-, 25-, 50- , 100-, 200-, and 500-year recurrence intervals. Flood profiles are provided for...