Cretaceous mafic conglomerate near Gualala offset 350 miles by San Andreas fault from oceanic crustal source near Eagle Rest Peak, California
Donald C. Ross, Carl M. Wentworth, Edwin D. McKee
1973, Journal of Research of the U.S. Geological Survey (1) 45-52
Upper Cretaceous mafic conglomerate and quartz-plagioclase arkose that crop out on the southwest side of the San Andreas fault near Gualala, Calif., may have been eroded from a gabbroic terrane that now lies about 350 miles to the southeast, on the opposite side of the San Andreas fault. The plagioclase arkose near Gualala contains little...
Paleomagnetism of some Precambrian basaltic flows and red beds, Eastern Grand Canyon, Arizona
D. P. Elston, Scott G. Robert
1973, Earth and Planetary Science Letters (18) 253-265
Lava flows and red sandstone beds near the middle of the Upper Precambrian Grand Canyon Series exhibit stable remanent magnetization. The beds are about 1000 m stratigraphically above rocks of the Grand Canyon Series for which paleomagnetic poles have been reported. All...
Petrography and stratigraphy of glacial drift, Mesabi-Vermilion Iron Range area, northeastern Minnesota
Thomas C. Winter, R. D. Cotter, H. L. Young
1973, Bulletin 1331-C
Glacial deposits in the Mesabi-Vermilion Iron Range area consist of four major till units and associated glaciofluvial sediments. Particle-size data and pebble, heavy-mineral, clay-mineral, and percentage-soluble content were used in addition to field description of color and texture to describe and correlate the drift units. The lowermost till unit, basal till,...
Yukon River: Evidence for extensive migration during the Holocene transgression
H.J. Knebel, J.S. Creager
1973, Science (179) 1230-1232
The shift of the Yukon River, during the Holocene sea-level transgression, from south of Nunivak Island during the Wisconsin maximum to its present location (a distance greater than 300 kilometers) is indicated by remanent channels, distinct subbottom structures, deltaic sediments, and anomalous rates of sediment accumulation on the continental shelf...
Drought displaced movement of North American pintails into Siberia
Charles J. Henny
1973, Journal of Wildlife Management (37) 23-29
During the years 1954-70, 230 pintails (Anas acuta) banded in North America were reported from eastern Asia, primarily Siberia. Most of the birds were shot on the breeding grounds in May. The movement into eastern Asia of pintails banded in the interior of North America was directly correlated with the...
Ground-water conditions in the east shore area, Box Elder, Davis, and Weber Counties, Utah 1960-69
E.L. Bolke, K.M. Waddell
1972, Technical Publication 35
This report is one of a series that is prepared by the U.S. Geological Survey in cooperation with the Utah Department of Natural Resources, Division of Water Rights, which describes water resources in selected areas in Utah. The period of study on which this report was based was from July...
Principal facts for gravity stations in the Death Valley region, California
Don R. Mabey
1972, Report
Observed gravity values, station locations, terrain corrections, and Bouguer gravity data are provided in tabular form for approximately 1,500 gravity observations in eastern California. Coverage includes Saline Valley, Panamint Valley, Searles Basin, Death Valley, the southern Amargosa Desert and the enclosed and adjoining highlands. These data were used in preparation...
The complex filling of alae crater, Kilauea Volcano, Hawaii
D. A. Swanson, W. A. Duffield, D. B. Jackson, D. W. Peterson
1972, Bulletin Volcanologique (36) 105-126
Since February 1969 Alae Crater, a 165-m-deep pit crater on the east rift of Kilauea Volcano, has been completely filled with about 18 million m3 of lava. The filling was episodic and complex. It involved 13 major periods of addition of lava to the crater, including spectacular...
Food resources of the California condor
S.R. Wilbur
1972, Report
Conclusions and Recommendations: Although much of the above information is imprecise and inconclusive, it is evident that the condors foraging habitat is diminishing. Food supply probably is still adequate for free-ranging nonbreeding birds, but could become limited if current land use trends continue. Congregating condors on fewer...
Middle pleistocene mollusks from St. Lawrence Island and their significance for the paleo-oceanography of the Bering Sea
D.M. Hopkins, R.W. Rowland, W. W. Patton Jr.
1972, Quaternary Research (2) 119-134
Drift, evidently of Illinoian age, was deposited on St. Lawrence Island at the margin of an ice cap that covered the highlands of the Chukotka Peninsula of Siberia and spread far eastward on the continental shelf of northern Bering Sea. Underlying the drift on the northwestward part of the island...
Pleistocene tectonic accretion of the continental slope off Washington
E. A. Silver
1972, Marine Geology (13) 239-249
Interpretation of reflection profiles across the Washington continental margin suggests deformation of Cascadia basin strata against the continental slope. Individual reflecting horizons can be traced across the slope-basin boundary. The sense of offset along faults on the continental slope is predominantly, but not...
Map showing landslides and areas of potential landsliding in the Salina quadrangle, Utah
Paul L. Williams
1972, IMAP 591-L
The term “landslide” is broadly defined as any “downward and outward movement of slope-forming materials composed of natural rock, soils, artificial fills, or combinations of these materials. The moving mass may proceed by any one of three principal types of movement: falling, sliding, or flossing, or by their combinations” (Varnes,...
Flood of June 1972: Chemung River near East Corning, New York
L.A. Wagner, P.H. Hamecher
1972, Open-File Report 72-429
In June 1972, tropical storm Agnes caused sever flooding in Pennsylvania and southern New York. The flood, on many major streams were the highest known since the river valleys were settled. Maximum discharges were as much as twice the discharge of a 50-year flood. In southern New York, large areas...
Reconnaissance bedrock geologic map of the Chugach Mountains near Anchorage, Alaska
Sandra H. B. Clark
1972, Miscellaneous Field Studies Map 350
The area between Knik and Turnagain Arms east of Anchorage is underlain mostly by rocks that are part of an extensive arcuate belt of thick Mesozoic marine deposits that extend through the Chugach-Kenai-Kodiak Mountains. The two main units in this belt are the Jurassic (?) and Cretaceous Valdez (?) Group...
Floods in Starkweather Creek basin, Madison, Wisconsin
Carl L. Lawrence, Barry K. Holmstrom
1972, Open-File Report 72-221
The city of Madison is establishing standards for flood-plain zoning and land-use planning. The evaluation of flood potential is a necessary factor to be considered before such standards are established and put into effect. Purpose and scope. The purposes of this report are to determine the magnitude and water surface...
A summary view of water supply and demand in the San Francisco Bay Region, California
Saul E. Rantz
1972, Open-File Report 72-462
This report presents a summary view of the water-supply situation in the nine counties that comprise the San Francisco Bay region, California, and thereby provides water data, based on 1970 conditions, that are needed for regional planning. For the purpose of this study the nine-county region has been divided into...
Generalized subsurface geology of the water-bearing deposits, northern San Joaquin Valley, California
W. R. Hotchkiss
1972, Open-File Report 73-119
The study area includes about 5,000 square miles of the northern part of the San Joaquin Valley, a broad structural trough drained by the San Joaquin River. Fresh ground water is mostly in unconsolidated deposits derived from the Coast Ranges on the west and the Sierra Nevada on the east.....
Geology and ground water of the Pajaro Valley area, Santa Cruz and Monterey Counties, California
K. S. Muir
1972, Open-File Report 73-199
The Pajaro Valley area, California, covering about 120 square miles, extends from the southern part of Santa Cruz County to several miles south of the county line into Monterey County. It borders the Pacific Ocean on the west and the Santa Cruz Mountains on the east. The city of Watsonville...
Water resources of the Crow Wing River watershed, central Minnesota
Gerald F. Lindholm, E.L. Oakes, D.W. Ericson, J. O. Helgesen
1972, Hydrologic Atlas 380
The Crow Wing River, a tributary of the Mississippi River, drains an area of about 3,760 square miles, essentially all of which is covered by glacial deposits. Topography of most of the watershed is slightly- to moderately-undulating and has local relief of up to about 50 feet. The margin of the...
Water resources of Clay, Greene, Craighead, and Poinsett Counties, Arkansas
Marion S. Hines, Raymond O. Plebuch, A. G. Lamonds
1972, Hydrologic Atlas 377
Water is available in Clay, Greene, Craighead, and Poinsett Counties from ground-water and surface-water sources. However, ground water is more accessible in many places than surface water. Ground water is available from the alluvium, which covers all the area except Crowleys Ridge, and is also available from other formations below...
Maps showing distribution of anomalous amounts of selected elements in stream-sediment and rock samples, Eagle quadrangle, Alaska
1972, Miscellaneous Field Studies Map 356
Maps showing the distribution of anomalous amounts of selected elements found in more than 1,600 stream-sediment and more than 1,500 rock samples have been prepared form results of semiquantitative spectrographic analyses. The samples were collected in the Eagle quadrangle, east-central Alaska, in the summers of 1968, 1969, 1970, and 1971. Figure...
Water resources of the Minnesota River-Hawk Creek watershed, southwestern Minnesota
Wayne A. Van Voast, W.L. Broussard, D.E. Wheat
1972, Hydrologic Atlas 391
The Minnesota River – Hawk Creek watershed is located in southwestern Minnesota. The watershed has an area of 1,479 square miles and is drained along its southwestern edge by the Minnesota River (Minnesota Division of Waters, 1959). The major watercourse within the watershed is Hawk Creek, having a drainage area...
A geochemical study of the Rio Pantanos area, Department of Antioquia, Colombia preliminary report
Henry V. Alminas, Elwin L. Mosier
1972, Open-File Report 72-4
Geochemical sampling in the Western Cordillera has delineated an 18 km 2 area anomalous in copper, molybdenum, and silver. Highly anomalous metal contents are found in stream sediment, soil, and outcrop samples collected within this area. The area is underlain by intrusive granodiorite to quartz diorite that has porphyritic and...
Hydrologic investigations of prairie potholes in North Dakota, 1959-68
W. S. Eisenlohr Jr., editor(s)
1972, Professional Paper 585-A
A prairie pothole is a depression in the prau1e, capable of storing water, that is the result of glacial processes. Years ago, there were many hundreds of thousands of prairie potholes in the North-Central United States, but large numbers of them have been drained for agricultural use. This report is...
Complete Bouguer gravity map of eastern Puerto Rico and principal facts for gravity stations
Andrew Griscom
1972, Open-File Report 72-146
No abstract available....
