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Page 6069, results 151701 - 151725

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Publication Extents

Not all publications have extents, not all extents are completely accurate
A study of flow in alluvial channels: the effect of large concentrations of fine sediment on the mechanics of flow in a small flume
William Leland Haushild, Daryl Baldwin Simons, Everett V. Richadrson
1961, Report
A flume study was made using a natural river sand as the bed material, median diameter = 0. 54 millimeters. Clear-water flow was compared with flow containing from 6 1 000 to 65,000 parts per million of fine sediment (bentonite). The study shows that the form of bed roughness could...
Surface water records of Indiana, 1961
Water Resources Division, U.S. Geological Survey
1961, Report
The surface-water records for the 1961 water year for gaging stations, partial-record stations, and miscellaneous sites within the State of Indiana are given in this report. For convenience there are also included records for a few pertinent gaging stations in bordering States. The records were collected and computed by the...
Origin of Pennsylvanian underclay and related seat rocks
J. W. Huddle, S. H. Patterson
1961, Geological Society of America Bulletin (72) 1643-1660
Seat rocks, including underclay, underlie coal beds and show features such as roots, profiles similar to water-logged soils, lack of bedding, soil-like fracture, and gradation into normally bedded sedimentary rocks indicating that they were once soils. Coarse-grained seat rocks range from argillaceous to nearly pure quartz sandstone (ganister). Seat rocks...
Geophysical study of subsurface structure in southern Owens Valley, California
M. F. Kane, L.C. Pakisek
1961, Geophysics (26) 12-26
Gravity and seismic measurements in southern Owens Valley, California, have outlined a deep subsurface trough, bounded throughout the greater part of its length by steep faults. Depths to the bedrock floor along the central part of the valley range from 3,000 to 9,000 ft below the surface. The subsurface trough is divided into...
Reconnaissance study of quaternary faults in and south of Yellowstone National Park, Wyoming
D. Love
1961, Geological Society of America Bulletin (72) 1749-1764
Normal faults offset a bedrock surface scoured by Pleistocene ice in several areas within and south of Yellowstone National Park. Recurrent earthquake shocks and fresh appearance of some scarps suggest that movement is continuing along some faults. Four systems of faults are described. Quaternary movement occurred along more than 60 faults on the Mirror Plateau, 15...
Paleoecology of an early oligocene biota from Douglass Creek Basin, Montana
Richard L. Konizeski
1961, Geological Society of America Bulletin (72) 1633-1642
Douglass Creek basin lies west of the Continental Divide in the northern part of the Rocky Mountain physiographic province. Numerous minor environmental differences exist between the Douglass Creek area and the Pipestone Springs and Canyon Ferry areas east of the Divide. In the 19th century, however, the three areas had identical...
Tektite from Martha's Vineyard, Massachusetts
C. A. Kaye, C.C. Schnetzler, J.N. Chase
1961, Geological Society of America Bulletin (72) 339-340
A fragment of an oddly sculptured glass disc found on the cliff of Gay Head, on Martha's Vineyard, Massachusetts, is thought to be a tektite. Unless carried to Gay Head by man from one of the known tektite fields, it raises to three the number of tektite localities in the...
Geological significance of lead-alpha and isotopic age determinations of "alkalic" rocks of New England
Priestley Toulmin III
1961, Geological Society of America Bulletin (72) 775-779
Recent age determinations indicate that at least two groups of "alkalic" igneous rocks exist in New England, with ages of about 185 and 270 million years. Because of their lithologic and geologic similarities, all these rocks had previously been grouped with the White Mountains plutonic-volcanic series of New Hampshire. Until reliable petrographic or...
An aeromagnetic profile from anchorage to Nome, Alaska
E. R. King
1961, Geophysics (26) 716-726
A total-intensity profile was obtained on a 500-mile flight by a U. S. Geological Survey airplane from Anchorage to Nome, Alaska, on May 4, 1954. The average flight altitude was 6,000 ft above sea level except over the Alaska Range where the flight altitude was 9,000 ft. This profile crossed eight of the major...
Origin and development of the Three Forks Basin, Montana
G. D. Robinson
1961, Bulletin of the Geological Society of America (72) 1303-1313
The Three Forks Basin sprawls where the intricately deformed sedimentary and volcanic rocks of the Disturbed Belt along the Rocky Mountain front are faulted against the Precambrian metamorphic rocks that make the core of the Tobacco Root, Madison, Gallatin, and Beartooth ranges. Its eastern edge is linear, controlled by steep faults...
Recent chemical analyses of waters from several closed-basin lakes and their tributaries in the western United States
H.C. Whitehead, J. H. Feth
1961, Geological Society of America Bulletin (72) 1421-1425
Some of the classic closed-basin lakes of the western United States have been resampled, and the waters have been analyzed by modern wet-chemical methods. Included are waters from Borax and Little Borax lakes and Mono Lake in California; Big Soda, Pyramid, and Walker Lakes in Nevada; Abert Lake, Oregon; and...
Origin of the Gulf of California
Warren Hamilton
1961, Bulletin of the Geological Society of America (72) 1307-1318
The probable cumulative Late Cretaceous and Cenozoic right-lateral strike-slip displacement along the San Andreas fault in central California is 350 miles. The San Andreas and the allied faults into which it branches southward trend longitudinally into the Gulf of California, and the seismicity of the region indicates that the fault system follows...
Patterns and origin of radial dike swarms associated with West Spanish Peak and Dike Mountain, south-central Colorado
Ross B. Johnson
1961, Bulletin of the Geological Society of America (72) 579-589
West Spanish Peak and Dike Mountain in south-central Colorado are stocks which cut Tertiary sedimentary rocks near the axis of the La Veta syncline, the structural trough of the Raton basin. Associated with these stocks are radial dike swarms. The outline of the West Spanish Peak dike swarm is elliptical. The Dike Mountain swarm is...
Local evidence of Pleistocene to recent orogeny in the Argentine Andes
Walden P. Pratt
1961, Bulletin of the Geological Society of America (72) 1539-1550
Deformed continental sedimentary rocks are exposed in the province of Salta, northwestern Argentina, in one of many intermontane basins of the Puna, a high desert region of subparallel north-trending block-fault ranges. These rocks, formerly thought to be Tertiary but recently dated by fossil diatoms as Pleistocene or younger, comprise several thousand feet of...
Uranium migration and geochemistry of uranium deposits in sandstone above, at, and below the water table; Part 2, Relationship of uranium migration dates, geology, and chemistry of the uranium deposits
C. S. Robinson, John Nicholas Rosholt Jr.
1961, Economic Geology (56) 1404-1420
The time of U migration in deposits in sandstone can be determined by correlating apparent age calculations, based on radiochemical analyses, with the geology of a particular deposit. Data were obtained from U ore samples representing deposits above the water table, deposits just above and below perched water tables, and...
Uranium migration and geochemistry of uranium deposits in sandstone above, at, and below the water table; Part 1, Calculation of apparent dates of uranium migration in deposits above and at the water table
John Nicholas Rosholt Jr.
1961, Economic Geology (56) 1392-1403
The migration of U may be studied by the distribution of the radioactive daughter products, which serve as natural tracers in the migration of U. The distribution of the daughter products is determined by radiochemical analyses of samples from ore deposits in sandstone, and the apparent minimum and maximum dates...
Origin of a salt-water lens in permafrost at Kotzebue, Alaska
D.J. Cedarstrom
1961, Bulletin of the Geological Society of America (72) 1427-1431
Frozen sediments were found to a depth of 238 feet in the drilling of a 325-foot well at Kotzebue, Alaska. Between 79 and 86 feet, however, highly saline water was found in a gravel lens. The writer suggests that the salt water originated by fractionation by freezing. Analyses of this water and of slightly saline...
Late quaternary history of the snake river in the American Falls region, Idaho
Donald E. Trimble, Wilfred James Carr
1961, Bulletin of the Geological Society of America (72) 1739-1748
While mapping the American Falls region, we found evidence that contributes to the middle Pleistocene to Recent history of the Snake River, and indirectly to the history of overflow of Lake Bonneville. Middle Pleistocene to recent rocks in the valley are mainly lacustrine and fluvial silts and clays, with some...