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Page 408, results 10176 - 10200

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Officer's cave, a pseudokarst feature in altered tuff and volcanic ash of the John Day formation in eastern Oregon
Garald G. Parker, Lynn M. Shown, Karl W. Ratzlaff
1964, Geological Society of America Bulletin (75) 393-402
Officer's Cave is the uppermost of four rapidly eroding cave levels constituting a cavern complex about 700 feet long developed chiefly in clay and silt. Its outer room is 35 feet by 43.5 feet by 100 feet and slopes about 45° east into the western end of a narrow linear hill called Officer's Cave Ridge. Dry valleys, blind valleys, hanging valleys, sinkholes, pipes,...
Ancient granite gneiss in the Black Hills, South Dakota
R. E. Zartman, J.J. Norton, T. W. Stern
1964, Science (145) 479-481
Granite gneiss, with an age of approximately 2.5 billion years, in the Black Hills, South Dakota , provides a link betweeen ancient rocks in western Wyoming and Montana and in eastern North and South Dakota and Minnesota. The discovery suggests that early Precambrian rocks covered an extensive area in northcentral...
Geology and ground-water conditions of Clark County, Washington, with a description of a major alluvial aquifer along the Columbia River
Maurice John Mundorff
1964, Water Supply Paper 1600
This report presents the results of an investigation of the ground-water resources of the populated parts of Clark County. Yields adequate for irrigation can be obtained from wells inmost farmed areas in Clark County, Wash. The total available supply is sufficient for all foreseeable irrigation developments. In a few local...
Ground-water reconnaissance in the Burnt River valley, Baker County, Oregon
Don Price
1964, Open-File Report 64-128
The Burnt River valley in southern Baker County, Oreg., is underlain by rocks that range in age from pre-Tertiary to Quaternary. The pre-Tertiary rocks consist mainly of argillites, schists, limestones, and intrusive igneous rocks, while the Tertiary rocks consist mainly of felsic and mafic volcanic tuffs, lava flows and breccias,...
Ground-water conditions in the southern and central parts of the East Shore area, Utah, 1953-61
Ralph E. Smith, Joseph S. Gates
1963, Utah Geological and Mineralogical Survey Water-Resources Bulletin 2
The East Shore area is in north-central Utah between the Wasatch Range and Great Salt Lake, and it has been divided into the Bountiful, Weber Delta, and Brigham ground-water districts, from south to north. The area described in this report includes the Bountiful and Weber Delta districts and the southernmost...
Geology and ground-water resources of northwestern King County, Washington
Bruce A. Liesch, Charles E. Price, Kenneth L. Walters
1963, Water Supply Bulletin 20
King County, in the west-central part of the State of Washington, includes about 2,135 square miles. The eastern part of the county lies in the Sierra-Cascade Mountains province and the remainder is in the Puget Trough of the Pacific Border province. The area covered by the present investigation is almost...
Traveltimes and amplitudes from nuclear explosions; Nevada Test Site to Ordway, Colorado
Alan Ryall, David J. Stuart
1963, Crustal Studies Technical Letter 10
This paper treats the results of a study of seismic waves generated by eight nuclear explosions and recorded at 31 locations between the Nevada Test Site (NTS) and Ordway, Colorado. The line of recording stations crosses the eastern part of the Basin and Range Province, the Colorado Plateau, the southern...
Structure of the crust and upper mantle in the western United States
L. C. Pakiser
1963, Crustal Studies Technical Letter 8
Seismic waves generated by underground nuclear and chemical explosions have been recorded in a network of nearly 2,000 stations in the western conterminous United States as a part of the VELA UNIFORM program. The network extends from eastern Colorado to the California coastline and from central Idaho to the border...
Seismic-refraction measurements of crustal structure between Santa Monica Bay and Lake Mead
John C. Roller, John H. Healy
1963, Crustal Studies Technical Letter 7
A reversed seismic-refraction profile was recorded between Santa Monica Bay, California, and Lake Mead, Nevada, during November 1961. Depth to the Mohorovicic discontinuity was determined to be approximately 29 km at Santa Monica Bay, 36 km under the Transverse Ranges, 26 km under the Mojave Desert, and 30 km at...
Nesting ecology and reproductive rate of the red-winged blackbird in tidal marshes of the upper Chesapeake Bay region
B. Meanley, J.S. Webb
1963, Chesapeake Science (4) 90-100
The nesting ecology and reproductive rate of the polygynous red-winged blackbird, Agelaius phoeniceus, were studied in the tidal marshes of Maryland during the period of 1958 through 1961. Sixteen nesting colonies were located in six major marsh communities of the Eastern Shore and were visited approximately twice a week from...
Geology of the Capitol Reef area, Wayne and Garfield Counties, Utah
J. Fred Smith Jr., Lyman C. Huff, E. Neal Hinrichs, Robert G. Luedke
1963, Professional Paper 363
The Capitol Reef area includes about 900 square miles in western Wayne and north-central Garfield Counties, Utah. It is along the border between the High Plateaus of Utah and the Canyon Lands sections of the Colorado' Plateaus province. Capitol Reef National Monument is in the eastern part of the mapped...
Economic geology of the Central City district, Gilpin County, Colorado
P.K. Sims, Avery A. Drake Jr., E. W. Tooker
1963, Professional Paper 359
The Central City district, in Gilpin County, Colo., is on the east flank of the Front Range, about 30 miles west of Denver. The district is the most important mining camp in the Front Range mineral belt, and has yielded more than $100 million worth of gold, silver, uranium, and...
Ground-water geology and pump irrigation in Frenchman Creek Basin above Palisade, Nebraska
W. D. E. Cardwell, Edward D. Jenkins
1963, Water Supply Paper 1577
This report describes the geography, geology, and ground-water resources of that part of the Frenchman Creek basin upstream from Palisade, Nebr., an area of about 4,900 square miles. The basin includes all of Phillips County, Colo., and Chase County, Nebr., and parts of Logan, Sedgwick, Washington, and Yuma Counties, Colo.,...
Geology of the Anlauf and Drain quadrangles, Douglas and Lane counties, Oregon
Linn Hoover
1963, Open-File Report 59-56
The Anlauf and Drain quadrangles, Oregon, lie about 20 miles south of the City of Eugene, in Douglas and Lane Counties. They constitute an area of about 435 square miles that includes parts of both the Cascade Range and Coast Range physiographic provinces.A sequence of lower Tertiary sedimentary and volcanic...
Geologic and hydrologic features of the San Bernardino area, California; with special reference to underflow across the San Jacinto fault
L.C. Dutcher, Arthur A. Garrett
1963, Water Supply Paper 1419
This is the second in a series of interpretive reports on subsurface outflow from the ground-water basins of San Bernardino County, Calif., prepared by the U.S. Geological Survey in cooperation with the San Bernardino County Flood Control District. One principal purpose of the study was to estimate the ground-water outflow...