Seismic refraction study of the continental edge off the eastern United States
R. E. Sheridan, J. A. Grow, John C. Behrendt, K.C. Bayer
1979, Tectonophysics (59) 1-26
Three long, strike-parallel, seismic-refraction profiles were made on the continental shelf edge, slope and upper rise off New Jersey during 1975. The shelf edge line lies along the axis of the East Coast Magnetic Anomaly (ECMA), while the continental rise line lies 80 km seaward of the shelf edge. Below...
Earliest Phanerozoic or latest Proterozoic fossils from the Arabian Shield
P. Cloud, S.M. Awramik, K. Morrison, D.G. Hadley
1979, Precambrian Research (10) 73-93
We report here the first biologically definable fossils from pre-Saq (pre-Middle Cambrian) rocks of the Arabian Shield. They include the distinctive helically coiled tubular filaments of the oscillatorialean blue-green alga Obruchevella parva as well as two size classes of spheroidal unicells of uncertain affinity. Also present is the conical stromatolite Conophyton and unidentified stromatolites....
Coal depositional models in some Tertiary and Cretaceous coal fields in the U.S. Western Interior
R. M. Flores
1979, Organic Geochemistry (1) 225-235
Detailed stratigraphic and sedimentological studies of the Tertiary Tongue River Member of the Fort Union Formation in the Powder River Basin, Wyoming, and the Cretaceous Blackhawk Formation and Star Point Sandstone in the Wasatch Plateau, Utah, indicate that the depositional environments of coal played a major role in controlling coal...
Geology and tectonic development of the continental margin north of Alaska
Arthur Grantz, Stephen Eittreim, David A. Dinter
1979, Tectonophysics (59) 263-291
The continental margin north of Alaska, as interpreted from seismic reflection profiles, is of the Atlantic type and consists of three sectors of contrasting structure and stratigraphy. The Chukchi sector, on the west, is characterized by the deep late Mesozoic and Tertiary North Chukchi basin and the Chukchi Continental Borderland....
CDP seismic sections of the western Beaufort continental margin
Stephen Eittreim, Arthur Grantz
1979, Tectonophysics (59) 251-262
The continental rise, slope, and shelf in the Beaufort Sea off northern Alaska were surveyed with 5600 km of common-depth-point (CDP) seismic data by the U.S. Geological Survey in 1977. The lower continental rise consists of a wedge of at least 4.5 km of low-velocity, generally flat-lying, parallel-bedded sediments. Slump-related...
Anomalous topography on the continental shelf around Hudson Canyon
H.J. Knebel
1979, Marine Geology (33) 67-75
Recent seismic-reflection data show that the topography on the Continental Shelf around Hudson Canyon is composed of a series of depressions having variable spacings (< 100 m to 2 km), depths (1–10 m), outlines, and bottom configurations that give the sea floor an anomalous “jagged” appearance in profile. The acoustic...
Effects of oil transferred from incubating gulls to their eggs
Kirk A. King, C.A. LeFever
1979, Marine Pollution Bulletin (10) 319-321
No. 2 fuel oil, or water, was applied to the breast feathers of incubating laughing gulls trapped at their nest site on an island colony in Texas. Gulls were released after treatment and allowed to incubate their eggs for 5 days. Oil was transferred from the feathers of incubating adults...
Relationship between physical condition of the carbonate fraction and sediment environments: Northern Puerto Rico shelf
O. H. Pilkey, E.I. Fierman, James V. A. Trumbull
1979, Sedimentary Geology (24) 283-290
Each of three sediment types recognizable on the northern Puerto Rico shelf and beaches is characterized by calcareous material in different physical condition. Dark terrigenous sand is accumulating at a relatively rapid rate and has a carbonate fraction containing fresh-appearing angular particles. The pure-carbonate skeletal-sand sediment type has a much...
Clay mineralogy, fine-grained sediment dispersal, and inferred current patterns, lower Cook Inlet and Kodiak shelf, Alaska
James R. Hein, Arnold H. Bouma, Monty A. Hampton, Ross C. Robin
1979, Sedimentary Geology (24) 291-306
Because lower Cook Inlet and Kodiak shelf are being explored and developed for their petroleum resources, it is essential for environmental reasons to understand the sediment dispersal routes and current patterns. The Susitna River flows into upper Cook Inlet and is the source of clay minerals in Holocene deposits found...
Research in the United States relative to geochemistry and health
W.L. Petrie, H.L. Cannon
1979, Physics and Chemistry of the Earth (11) 829-847
Increasing concern regarding the effects of the geochemical environment on health in the United States has fostered research studies in a number of universities and government agencies. The necessity to evaluate the effects of natural and man-made elemental excesses in the environment on health requires the establishment of requirements and...
The determination of lead in 13 USGS standard rocks
P. J. Aruscavage, E.Y. Campbell
1979, Talanta (26) 1052-1054
Lead was determined in 13 U.S. Geological Survey standard rocks by graphite furnace atomization and atomic-absorption spectrometry after extraction of lead with diethylammonium diethyldithiocarbamic acid. An analysis of variance of the results obtained from a random sampling of three different bottles of each standard rock showed no heterogeneity among bottles,...
4 NCIC Data Acquisition Guide
Water Resources Division, U.S. Geological Survey
1979, Report
The National Cartographic Information Center (NCIC) is the information branch of the National Mapping Program. NCIC gathers descriptions of cartographic products held by Federal, State and local agencies, and private companies. Computerized information systems are used to edit, store, and distribute these descriptions. The Aerial Photography Summary Record System (APSRS)...
Maps showing late Pleistocene and Holocene evolution of the South Texas continental shelf
Carroll A. Pyle, Henry L. Berryhill Jr., Anita R. Trippet
1979, Miscellaneous Field Studies Map 1134
Interpretation of acoustical profiles has provided insight into the late Quaternary geologic history of the Continental Shelf off South Texas. (See the geographic index map on sheet 1 for location of the area studied.) The profiles reveal the interplay of tectonism, sedimentation, and cyclic fluctuations of sea level in the...
Results of Laboratory Tests on Surficial Sediments from the Upper Continental Slope Northern Gulf of Mexico
James S. Booth
1979, Open-File Report 79-579
The purpose of this report is to present the results of geotechnical, textural, and chemical tests performed on samples from the upper Continental Slope, northern Gulf of Mexico.The samples were collected by a piston corer up to 12 m (40 ft.} in length with a head weight of 908 kg...
Preliminary geologic map of Cenozoic deposits of the Clay area, California
J. Alan Bartow, Denis E. Marchand
1979, Open-File Report 79-667
Reconnaissance map showing relative amounts of soil and bedrock in the mountainous part of the Mount Big Chief-Cheyenne Mountain Quadrangles, El Paso, Teller, and Fremont counties, Colorado
P. W. Schmidt
1979, Miscellaneous Field Studies Map 1065
Ground-water conditions and potential for artificial recharge in Lucerne Valley, San Bernardino County, California
Donald H. Schaefer
1979, Water-Resources Investigations Report 78-118
The water level in two areas of Lucerne Valley has declined more than 100 feet since 1917, including 60 feet from 1954 to 1976. These declines are the result of pumping for the irrigation of alfalfa. The lowering of water levels has caused many shallow domestic wells to go dry....
A summary of the Circum-Pacific Map Project meeting in Menlo Park, California, May 2-4, 1979
Paul W. Richards
1979, Open-File Report 79-1561
No abstract available....
Reconnaissance map showing relative amounts of soil and bedrock in the mountainous part of the Palmer Lake quadrangle, El Paso County, Colorado
P. W. Schmidt
1979, Miscellaneous Field Studies Map 1063
Coal resource occurrence maps and coal development potential maps of the Alamo Mesa West quadrangle, San Juan County, New Mexico
Water Resources Division, U.S. Geological Survey, Dames & Moore
1979, Open-File Report 79-602
No abstract available....
Land use and land cover, 1975, Woodstock, New Brunswick, Canada; Maine, U.S. (U.S. portion only)
Water Resources Division, U.S. Geological Survey
1979, Land Use and Land Cover 49
Reconnaissance map showing relative amounts of soil and bedrock in the mountainous part of the Devils Head quadrangle, Douglas County, Colorado
P. W. Schmidt
1979, Miscellaneous Field Studies Map 1062
The concentration and mobility of elements in subalpine forest soils in Colorado and Idaho
Gary C. Curtin, Harley D. King, J. M. Nishi
1979, Open-File Report 79-710
Leaching studies of subalpine forest soils collected at seven sites in Colorado and Idaho show that copper, cobalt, chromium, magnesium, barium, tin, strontium, and yttrium are highly mobile elements in these soils; that zirconium, lanthanum, nickel, and scandium are moderately mobile; and that titanium is rather immobile. Furthermore, the results...
Maps showing faults, fault activity and epicenters, focal depths and focal mechanisms for 1970-75 earthquakes, western transverse ranges, California
R. F. Yerkes, W.H.K. Lee
1979, Miscellaneous Field Studies Map 1032
Land use and land cover, 1973, Salisbury, Maryland; Delaware; New Jersey; Virginia
Water Resources Division, U.S. Geological Survey
1979, Land Use and Land Cover 65
