Water resources of the Buffalo River Watershed, West-central Minnesota
Robert W. Maclay, L. E. Bidwell, Thomas C. Winter
1969, Hydrologic Atlas 307
The Buffalo River watershed includes two general physiographic areas – a glacial lake plain and an glacial moraine. The lake plain, which was formed by Glacial lake Agassiz more than 9,000 years ago, is extremely flat – sloping only a few feet per mile westward near the Red River of the...
Aeromagnetic map of the Easthampton quadrangle, Hampshire and Hampden Counties, Massachusetts
Water Resources Division, U.S. Geological Survey
1969, Geophysical Investigations Map 661
No abstract available....
The Geologic Story of the Uinta Mountains
Wallace R. Hansen
1969, Bulletin 1291
The opening of the West after the Civil War greatly stimulated early geologic exploration west of the 100th Meridian. One of the areas first studied, the Uinta Mountains region, gained wide attention as a result of the explorations of three Territorial Surveys, one headed by John Wesley Powell, one by...
Tectonics of the March 27, 1964, Alaska earthquake
George Plafker
1969, Professional Paper 543-I
The March 27, 1964, earthquake was accomp anied by crustal deformation-including warping, horizontal distortion, and faulting-over probably more than 110,000 square miles of land and sea bottom in south-central Alaska. Regional uplift and subsidence occurred mainly in two nearly parallel elongate zones, together about 600 miles long and as much...
An analysis of gravity data in Area 12, Nevada Test Site
R. R. Wahl
1969, Open-File Report 69-309
The gravity data available from Healey and Miller (1963a) were augmented by new observations along three profiles through two new drill holes in Area 12; UEI2t #1 and UEI2p #1. The data were interpreted to allow evaluation of the geologic structure prior to the planning and excavation of two...
Pecos National Monument, New Mexico: Its geologic setting
Ross Byron Johnson
1969, Bulletin 1271-E
The ruins of the pueblos and missions of Pecos lie on the east bank of Glorieta Creek near its junction with the Pecos River at the south end of the Sangre de Cristo Mountains in north-central New Mexico. Here the Pecos River and Glorieta Creek have formed a broad rolling...
Regional hydrogeology of the Navajo and Hopi Indian Reservations, Arizona, New Mexico, and Utah, with a section on vegetation
M. E. Cooley, J. W. Harshbarger, J. P. Akers, W. F. Hardt, O.N. Hicks
1969, Professional Paper 521-A
The Navajo and Hopi Indian Reservations have an area of about 25,000 square miles and are in the south-central part of the Colorado Plateaus physiographic province. The reservations are underlain by sedimentary rocks that range in age from Cambrian to Tertiary, but Permian and younger rocks are exposed in about...
Preliminary geologic interpretation of aeromagnetic data in the Nixon Fork district, Alaska
Lennart A. Anderson, Bruce L. Reed, Gordon R. Johnson
1969, Open-File Report 69-9
An aeromagnetic map covering 480 square miles was compiled for the Nixon Fork district, which is located approximately 35 miles northeast of McGrath, Alaska. The survey was flown in search of concealed intrusive rocks which may have produced contact metamorphic deposits in limestone similar to the known lode deposits which...
Quality of surface waters of the United States, 1964, Parts 1 and 2, North Atlantic slope basins and South Atlantic slope and eastern Gulf of Mexico basins
Water Resources Division, U.S. Geological Survey
1969, Water Supply Paper 1954
Geologic map of the Park City East Quadrangle, Summit and Wasatch Counties, Utah
Calvin S. Bromfield, Max D. Crittenden Jr.
1969, Open-File Report 69-24
No abstract available. ...
Geology, hydrology, and water quality in the Fresno area, California
Roland Westland Page, R.A. LeBlanc
1969, Open-File Report 69-328
The Fresno area comprises about 1.400 square miles lying west of the foothills of the Sierra Nevada and east of the trough of the San Joaquin Valley. The rainfall averages less than 10 inches per year causing agricultural development to depend mainly on surface-water deliveries and ground-water pumpage. Surface-water deliveries...
Recent surface movements in the Baldwin Hills, Los Angeles County, California
Robert O. Castle, R. F. Yerkes
1969, Open-File Report 69-36
The Baldwin Hills are located in the northwest part of the densely populated Los Angeles basin. They comprise one of several groups of isolated hills that extend along the northwest-trending Newport-Inglewood zone of folds and faults, a structural lineament identified with a series of very productive oil fields. In addition...
Kilauea Volcano: The 1967-68 summit eruption
Willie Tomoni Kinoshita, R. Y. Koyanagi, Thomas L. Wright, Richard S. Fiske
1969, Science (166) 459-468
On 5 November 1967 Kilauea volcano began erupting lava from vents on the floor of its summit pit crater. Halemaumau, 170 meters deep. This eruption ended nearly 2 years of the quiescence that followed a short lived eruption on the east rift zone of Kilauea in December 1965 (1). The...
Mesozoic California and the underflow of Pacific mantle
Warren Hamilton
1969, Geological Society of America Bulletin (80) 2409-2429
The Mesozoic evolution of California is interpreted as dominated by the underflow of oceanic mantle beneath the continental margin. Underflow during part of Late Cretaceous time of more than 2000 km of the eastern Pacific plate seems required by the marine magnetic data. Correspondingly, varied oceanic environments—abyssal hill, island arc,...
Mean streamflow from discharge measurements
H. C. Riggs
1969, International Association of Scientific Hydrology - Bulletin (14) 95-110
Mean flow of a stream is usually computed from a continuous record of flow ai a gaging station. A less costly method consists of (1) estimating 12 individual monthly flows from one discharge measurement per month and a concurrent gaging station record on a nearby stream, using a...
Great Salt Lake, Utah: Chemical and physical variations of the brine, 1963-1966
D. C. Hahl, A.H. Handy
1969, Utah Geological and Mineralogical Survey Water-Resources Bulletin 12
Great Salt Lake is a shallow, closed-basin lake in northern Utah. Its surface area and concentration of dissolved solids vary in response to both annual and long-term climatic changes. The lake gains water mainly as streamflow from mountains to the east and loses water through evaporation. In 1965, at a...
Fission-track ages of accessory minerals from granitic rocks of the central Sierra Nevada batholith, California
C. W. Naeser, F. C. W. Dodge
1969, Geological Society of America Bulletin (80) 2201-2211
Ages of apatite, sphene, allanite, epidote, and garnet from plutonic rocks of the central Sierra Nevada and Inyo Mountains have been determined by the fission-track method.Ages of 44 specimens of apatite range from 54 to 128 m.y. Oldest apatites generally occur in rocks from the western portion of the batholith;...
The U.S. Geological Survey's gravity program in California
Howard W. Oliver
1969, Eos Science News (50) 543-545
Since the 1963 gravity symposium, the U.S. Geological Survey has entered into a cooperative program with the California Division of Mines and Geology, the Army Map Service, and several universities for the purpose of completing a 5-mgal Bouguer gravity map of the entire State of California at a scale of...
The structure and tectonic history of the eastern Aleutian Trench
Roland E. von Huene, George G. Shor Jr.
1969, Geological Society of America Bulletin (80) 1889-1902
The tectonic character of the eastern Aleutian Trench and some major events in its geologic history can be estimated from nine continuous seismic reflection records. A section of pre-trench, deep oceanic sediments rests on the down-warped crust that forms the trench. Nearly horizontal undeformed strata that unconformably overlie this deep...
The ground-water situation in Ohio
Stanley E. Norris
1969, Groundwater (7) 25-33
Present ground-water use in Ohio, approximately 650mgd (million gallons per day) amounts to about 5 percent of the water that enters the ground-water reservoirs. The largest ground-water supplies are developed where natural concentrations of water occur, chiefly in the watercourse aquifers, which consist of sand and gravel of glacial origin...
Aeromagnetic investigation of crustal structure for a strip across the western United States
Isidore Zietz, Paul C. Bateman, James E. Case, M. D. Crittenden Jr., Andrew Griscom, Elizabeth R. King, R. J. Roberts, George R. Lorentzen
1969, Geological Society of America Bulletin (80) 1703-1714
This report represents part of a larger study undertaken to interpret the gross features of the earth's crust by aeromagnetic methods. The larger survey covers a 100-mile-wide strip along a great circle arc from Washington, D.C., to San Francisco, California. The area considered extends from about 200 miles east of...
Cretaceous, Tertiary, and early Pleistocene rocks from the continental margin in the Bering Sea
David M. Hopkins, David W. Scholl, Warren O. Addicott, Richard L. Pierce, Patsy Beckstead Smith, Jack A. Wolfe, David Gershanovich, Boris Kotenev, Kenneth E. Lohman, Jere H. Lipps, John D. Obradovich
1969, Geological Society of America Bulletin (80) 1471-1480
Rocks dredged from the continental margin in eastern Bering Sea in and near the Pribilof Canyon indicate that the acoustic basement represents the upper surface of thoroughly lithified turbidite beds of graywacke and siltstone of Late Cretaceous age. The stratified sequence covering the acoustic basement is gently deformed and includes...
A geophysical study of North Park and the surrounding ranges, Colorado
John C. Behrendt, Peter Popenoe, Robert E. Mattick
1969, Geological Society of America Bulletin (80) 1523-1537
A geophysical study in the North Park basin and surrounding mountains, Colorado illustrates the structural relationship of various sedimentary, metamorphic, and igneous rock units. Bouguer anomalies from 1330 gravity stations range from −210 mgal over Precambrian metamorphic rocks in the mountains to −260 mgal in the Walden syncline and —280...
Alkalic and tholeiitic basaltic volcanism related to the Rio Grande depression, southern Colorado and northern New Mexico
Peter W. Lipman
1969, Geological Society of America Bulletin (80) 1343-1353
Upper Cenozoic basaltic rocks in and near the northern Rio Grande depression, a major intracontinental tension-rift structure, vary systematically in petrology and chemistry with distance from the depression. Basalts and basaltic andesites of alkalic affinities, commonly showing evidence of crustal contamination, were erupted east and west of the depression concurrently...
Newly discovered bedded barite deposits in East Northumberland Canyon, Nye County, Nevada
D. R. Shawe, F. G. Poole, D.A. Brobst
1969, Economic Geology (64) 245-254
No abstract available....
