Evaluation of organic matter, subsurface temperature and pressure with regard to gas generation in low-permeability Upper Cretaceous and Lower Tertiary sandstones in Pacific Creek area, Sublette and Sweetwater Counties, Wyoming.
B. E. Law, C. W. Spencer, N. H. Bostick
1980, Mountain Geologist (17) 23-35
The onset of overpressuring occurs at c.3,500 m, near the base of the U. Cretaceous Lance Formation. The development of overpressuring may involve several processes; however, interpretation of the available information indicates that active generation of large amounts of wet gas is one of the more important processes. The present...
Paleoenvironment of the New Albany Shale Group ( Devonian- Mississippian) of Illinois
R.M. Cluff
1980, Journal of Sedimentary Petrology (50) 767-780
The distribution of lithofacies in the New Albany Shale Group of Illinois was determined by wave energy, bottom oxygenation, and bottom topography in a deep water stratified anoxic basin. A transect from the margin to the center of the Illinois Basin reveals a...
Nest site and colony characteristics of wading birds in selected Atlantic Coast colonies
Donald L. Beaver, Ronald G. Osborn, Thomas W. Custer
1980, The Wilson Bulletin (92) 200-220
Nests of 5 species of wading birds were identified and marked during the breeding season at 6 locations from Massachusetts to North Carolina. At the end of the breeding season 12 characteristics of nest-site location were measured. Nest locations were mapped to examine dispersion and nearest neighbor relationships. Multivariate analyses...
Regional tilt patterns of Late Cenozoic basin-range fault blocks, western United States.
John H. Stewart
1980, Geological Society of America Bulletin (91) 460-464
The pattern of tilt domains is characterized by transverse zones or boundaries, parallel to the extension direction, and by antiformal (tilts away from) and synformal (tilts toward) boundaries at right angles to the extension direction. Tilting of ranges averages about 15o to 20o in Nevada and Utah and indicates extension...
Pomona Member of the Columbia River Basalt Group: an intracanyon flow in the Columbia River Gorge, Oregon.
J. L. Anderson
1980, Oregon Geology (42) 195-199
The Pomona Member of the Saddle Mountains Basalt (Columbia River Basalt Group) occurs as an intracanyon flow greater than 75m (250ft) thick along the S side of the Columbia River Gorge between Mitchell Point and Shellrock Mountain, Oregon. Best exposures are at Mitchell Point, where this flow caps more than...
Morphology of Lonar Crater, India: Comparisons and implications
R.F. Fudali, D.J. Milton, K. Fredriksson, A. Dube
1980, The Moon and the Planets (23) 493-515
Lonar Crater is a young meteorite impact crater emplaced in Deccan basalt. Data from 5 drillholes, a gravity network, and field mapping are used to reconstruct its original dimensions, delineate the nature of the pre-impact target rocks, and interpret the emplacement mode of the ejecta. Our estimates of the pre-erosion...
Origin of gasoline-range hydrocarbons and their migration by solution in carbon dioxide in Norton basin, Alaska.
Keith A. Kvenvolden, George E. Claypool
1980, American Association of Petroleum Geologists Bulletin (64) 1078-1086
Carbon dioxide from a submarine seep in Norton Sound, Alaska, carries a minor component of gas- and gasoline-range hydrocarbons. The molecular and isotopic compositions of the hydrocarbon gases and the presence of gasoline-range hydrocarbons indicate that these molecules are derived from thermal alteration of marine and/or nonmarine organic matter buried...
Extraction and concentration of phenolic compounds from water and sediment
Marvin C. Goldberg, Eugene R. Weiner
1980, Analytica Chimica Acta (115) 373-378
Continuous liquid-liquid extractors are used to concentrate phenols at the ??g l-1 level from water into dichloromethane; this is followed by Kuderna-Danish evaporative concentration and gas chromatography. The procedure requires 5 h for 18 l of sample water. Overall concentration factors around 1000 are obtained. Overall concentration efficiencies vary from...
Remote sensing of snow and ice
M. F. Meier
1980, Hydrological Sciences Bulletin (25) 307-330
Monitoring of snow and ice on the Earth's surface will require increasing use of satellite remote sensing techniques. These techniques are evolving rapidly. Active and passive sensors operating in the visible, near infrared, thermal infrared, and microwave wavelengths are described in regard to general applications and in regard to specific...
Sedimentary masses and concepts about tectonic processes at underthrust ocean margins
D.W. Scholl, Roland E. von Huene, T.L. Vallier, D. G. Howell
1980, Geology (8) 564-568
Tectonic processes associated with subduction of oceanic crust, but unrelated to the collision of thick crustal masses or microplates, are presumed by many geologists to significantly affect the formation and deformation of large sedimentary bodies at underthrust ocean margins. More geologists are familiar with the concept of subduction accretion, which describes...
Upper Wisconsinan till recovered on the continental shelf southeast of New England
Michael H. Bothner, Elliott C. Spiker
1980, Science (210) 423-425
Basal till was identified in two sediment cores collected about 69 kilometers southeast of Nantucket Island on the east and west sides of Great South Channel. These are the first samples of till collected on the outer continental shelf off the northeastern United States. The carbon-14 age of the total...
Tectonic stresses in the lithosphere: constraints provided by the experimental deformation of rocks.
S. H. Kirby
1980, Journal of Geophysical Research Solid Earth (85) 6353-6363
The strengths of rocks clearly place an upper limit on the stress that can be sustained by the upper half of the lithosphere. Laboratory data on rock rheology are generally lacking at intermediate temperatures and pressures on the important rock types expected in the lithosphere, so a definitive accounting of...
Geoscientists for international development
David A. Hastings
1980, The British Geologist (6) 104-106
Professional societies are usually concerned with the advancement of scientific knowledge, but a relative newcomer to the international scene has a different focus - geoscience development in the Third World. David Hastings, a member of AGID, explains....
Aeromagnetic map of the Little Dog-Pup Canyon area, New Mexico
Water Resources Division, U.S. Geological Survey
1980, Open-File Report 80-997
No abstract available....
Earthquakes, January-February, 1980
W. J. Person
1980, Earthquake Information Bulletin (USGS) (12) 200-202
Earthquakes, November-December, 1979
W. J. Person
1980, Earthquake Information Bulletin (USGS) (13) 113-116
Food of alewives, yellow perch, spottail shiners, trout-perch, and slimy and fourhorn sculpins in southeastern Lake Michigan
LaRue Wells
1980, Report
Stomachs of 1, 064 alewives (Alosa pseudoharengus), 1, 103 yellow perch (Perca flavescens), 246 spottail shiners (Notropis hudsonius), 288 trout-perch (Percopsis omiscomaycus), 454 slimy sculpins (Cottus cognatus), and 562 fourhorn sculpins (Myoxocephalus quadricornis) from Lake Michigan were examined for food contents. Fish were sampled primarily from March to November and...
Earthquakes, September-October, 1979
W. J. Person
1980, Earthquake Information Bulletin (USGS) (12) 74-77
The months of September and October were quite active, seismically speaking, compared to the previous 2 months. One great earthquake, a magnitude (M) 8.1, was centered in the West Irian region on September 12. Two major (M=7.0-7.9) earthquakes occurred, one on October 12, a M=7.3 off the west coast of...
Accuracy of an estuarine hydrodynamic model using smooth elements
Roy A. Walters, Ralph T. Cheng
1980, Water Resources Research (16) 187-195
A finite element model which uses triangular, isoparametric elements with quadratic basis functions for the two velocity components and linear basis functions for water surface elevation is used in the computation of shallow water wave motions. Specifically addressed are two common uncertainties in this class of two-dimensional hydrodynamic models: the...
Aerial photography summary record system - five years later.
T.J. Lauterborn
1980, Photogrammetric Engineering and Remote Sensing (46) 1537-1539
Describes the APSRS, an automated information system for conventional aerial photography projects, established after the formation of the National Cartographic Information Center in the US Geological Survey in 1974. -after Author...
Circular current loops, magnetic dipoles and spherical harmonic analysis.
L.R. Alldredge
1980, Journal of Geomagnetism & Geoelectricity (32) 357-364
Spherical harmonic analysis (SHA) is the most used method of describing the Earth's magnetic field, even though spherical harmonic coefficients (SHC) almost completely defy interpretation in terms of real sources. Some moderately successful efforts have been made to represent the field in terms of dipoles placed in the core in...
Notes on sedimentation activities calendar year 1978
U.S. Interagency Advisory Committee on Water Data- Subcommittee on Sedimentation
1980, Report
This report is a digest of information furnished by Federal agencies conducting sedimentation investigations on work in progress or planned, important findings, new methods, new publications, laboratory and other research activities, and other pertinent information. The material has been organized by major drainage regions in the conterminous United States,Alaska, Hawaii,...
Epizootiology of fish diseases (Epizootologie der Fischkrankheiten)
S. F. Snieszko
1980, Fisch und Umwelt (Fish and Environment) (8) 1-17
Publications of the Geological Survey, 1879-1961
Water Resources Division, U.S. Geological Survey
1980, Report
This permanent catalog is a list of books and maps that were published between 1879 and 1961. It supplements another permanent catalog "Publications of the Geological Survey, 1962-1970."...
Effect of leaching on apparent digestion coefficients of feedstuffs for salmonids
R. R. Smith, M. C. Peterson, A. C. Allred
1980, Progressive Fish-Culturist (42) 195-199
Fecal excretions were collected from rainbow trout (Salmo gairdneri) in metabolism chambers. In this method of collection the daily excretion is suspended in about 1 L of water. Aliquots of the suspension were separated into solid and liquid fractions by settling, centrifuging, or filtering. Solid and liquid fractions and the...
