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Page 1618, results 40426 - 40450

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Ground-water studies and analog models
Charles Joseph Robinove
1962, Circular 468
Hydrologists make ground-water studies to aid managers and users of water resources in solving their problems in the development and management of ground water. Geologic and hydrologic information provides the basic knowledge for construction of electric analog models that portray the ground-water system in miniature. Analog models can be analyzed...
Ground-water resources of Camas Prairie, Camas and Elmore Counties, Idaho
William Clarence Walton
1962, Water Supply Paper 1609
Camas Prairie is an eastward-trending intermontane basin along the north flank of the Snake River Plain in southern Idaho. The basin is about 40 miles long and averages about 8 miles wide. It was formed as a structural depression in which a considerable thickness of alluvial and lake deposits accumulated...
A formula for computing transmissibility causing maximum possible drawdown due to pumping
G.M. Robinson, Herbert E. Skibitzke
1962, Water Supply Paper 1536-F
By modifying the Theis nonequilibrium formula a relation is found in which the maximum possible drawdown is expressed in terms of a unique value for the aquifer coefficient of transmissibility. The relation is valid for any specified period and rate of pumping, for a given aquifer coefficient of storage, and...
Reconnaissance of ground-water resources in the Western Coal Field Region, Kentucky
Bruce William Maxwell, Robert Washburn Devaul
1962, Water Supply Paper 1599
In the Western Coal Field region of Kentucky, water is obtained from consolidated sedimentary rocks of Mississippian and Pennsylvanian ages and from unconsolidated sediments of Cenozoic age. Pennsylvanian rocks crop out in more than 95 percent of the area and consist of shale and sandstone interbedded with some limestone and...
Thermodynamic properties of minerals
Richard A. Robie
1962, Trace Elements Investigations 816
In the ten years since the publication of the national Bureau of Standards comprehensive tables of thermochemical properties, by Rossini and other (1952), a very large body of modern calorimetric and equilibrium data has become available. Because of the complex interrelations among many thermochemical data and the necessity for internal...
Tuscaloosa formation in Tennessee
M.V. Marcher, R. G. Stearns
1962, Geological Society of America Bulletin (73) 1365-1386
Late Cretaceous Tuscaloosa Formation occurs as discontinuous remnants that cap many of the ridges in the Western Highland Rim. Typically the formation consists of well-rounded, poorly sorted chert gravel which is trimodal in size distribution. The gravel fraction (mode 15 to 40+ mm) consists of Devonian and Mississippian chert and a small percentage of...
Trace element distribution in the searchlight, Nevada quartz monzonite stock
J.N. Shrivastava, P.D. Proctor
1962, Economic Geology (57) 1062-1070
Gold, silver, copper, and lead-bearing veins, non-radially zoned, occur just beyond the southern and western margins of the Searchlight, Nevada, quartz monzonite stock. Seven samples of the quartz monzonite and purified individual constituent minerals of the rock, representing apophyses and marginal and interior parts of the intrusive mass, were analyzed petrographically...
The origin of jasperoid in limestone
T.G. Lovering
1962, Economic Geology (57) 861-889
The name jasperoid has been applied to rocks that consist mainly of silica and that have formed by replacement. This paper considers only those jasperoids formed by replacement of limestone. Major problems involved in the origin of such jasperoid include: source of the silica; nature of solutions that dissolve, transport, and precipitate silica; and...
Distribution and composition of sulfide minerals at Balmat, New York
Bruce R. Doe
1962, Geological Society of America Bulletin (73) 833-854
In the Balmat area in northern New York, tabular deposits of sulfide minerals parallel the layering in folded, siliceous magnesian marbles of a metamorphic complex commonly referred to as the Precambrian Granville Series. Sphalerite, pyrite, and, locally, pyrrhotite and galena have replaced the carbonate minerals in parts of the marble units. The contacts...
A photoelectric amplifier as a dye detector
Wesley J. Ebel
1962, Technical Report 4
A dye detector, based on a modified photoelectric amplifier, has been planned, built, and tested. It was designed to record automatically the time of arrival of fluorescein dye at predetermined points in a stream system. Laboratory tests and stream trials proved the instrument to be efficient. Small changes in color...
Temperature dependence of decay time and intensity of alpha pulses in pure and thallium-activated cesium iodide
F. E. Senftle, P. Martinez, V. P. Alekna
1962, Review of Scientific Instruments (33) 819-822
The intensity and decay time of Po210 alpha particle scintillations produced in pure and thallium‐activated cesium iodide have been measured with a fast electronic system as a function of temperature down to 77°K. Three modes of decay due to alpha excitation have been observed for CsI(Tl), and two for CsI. Other than...
Water and the arid zone of the United States
Luna Bergere Leopold
1962, Conference Paper
In a pluvial period associated with Wisconsin glaciation the closed basin of the Estancia Valley in New Mexico held a lake which, at its maximum extent, was 150 feet deep and had a surface area of 450 square miles. This basin, with a mean elevation of about 6,000 feet, has...
Geology and ground-water resources of Sumner County, Kansas
K.L. Walters
1961, Kansas Geological Survey Bulletin (151)
This report describes the geography, geology, and ground-water resources of Sumner County in south-central Kansas. The hydrologic and geologic data upon which this report is based were obtained in the field during the summers of 1955 and 1956. Records of 300 wells and 2 springs, chemical analyses of 219 water...
Ground Water at Grant Village Site, Yellowstone National Park, Wyoming
Ellis D. Gordon, Richard A. McCullough, Edwin P. Weeks
1961, Water Supply Paper 1475-F
On behalf of the National Park Service, the U.S. Geological Survey during the summer of 1959 made a study of ground-water conditions in the area of the Grant Village site, along the shore of the West Thumb of Yellowstone Lake, 1 to 2 miles south of the present facilities at...
Sonic depth sounder for laboratory and field use
E.V. Richardson, Daryl B. Simons, G.J. Posakony
1961, Circular 450
The laboratory investigation of roughness in alluvial channels has led to the development of a special electronic device capable of mapping the streambed configuration under dynamic conditions. This electronic device employs an ultrasonic pulse-echo principle, similar to that of a fathometer, that utilizes microsecond techniques to give high accuracy in...
Geology and mineral deposits of the Carlile quadrangle, Crook County, Wyoming
M.H. Bergendahl, R. E. Davis, G. A. Izett
1961, Bulletin 1082-J
The Carlile quadrangle-is along the northwestern flank of the Black Hills uplift in Crook County, Wyo. The area-is primarily one of canyons and divides that are a result of downcutting by the Belle Fourche River and its tributaries through an alternating succession of sandstone, siltstone, and mudstone or shale beds....
Ash-flow tuffs: Their origin, geologic relations, and identification
Clarence S. Ross, Robert L. Smith
1961, Professional Paper 366
Pyroclastic materials, which are interpreted as having been deposited by flowage as a suspension of ash in volcanic gas, are becoming widely recognized as major geologic episodes. These may be unconsolidated, indurated by partial welding, or welded into a compact rock. Many students are working on these materials and the...
Geology of uranium in the Chadron area, Nebraska and South Dakota
Robert Jacob Dunham
1961, Open-File Report 61-42
The Chadron area covers 375 square miles about 25 miles southeast of the Black Hills. Recurrent mild tectonic activity and erosion on the Chadron arch, a compound anticlinal uplift of regional extent, exposed 1900 feet of Upper Cretaceous rocks, mostly marine shale containing pyrite and organic matter, and 600 feet...
Botanical Evidence of the Modern History of Nisqually Glacier, Washington
Robert S. Sigafoos, E. L. Hendricks
1961, Professional Paper 387-A
A knowledge of the areas once occupied by mountain glaciers reveals at least part of the past behavior of these glaciers. From this behavior, inferences of past climate can be drawn. The maximum advance of Nisqually Glacier in the last thousand years was located, and retreat from this point is...
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...