J.M. Friedman
1987, Thesis
No abstract available....
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Page 4816, results 120376 - 120400
Publication Extents
Not all publications have extents, not all extents are completely accurateD.A. Walker, P.J. Webber, Emily F. Binnian, K.R. Everett, N.D. Lederer, E.A. Nordstrand, M.D. Walker
1987, Science (238) 757-761
Proposed further developments on Alaska's Arctic Coastal Plain raise questions about cumulative effects on arctic tundra ecosystems of development of multiple large oil fields. Maps of historical changes to the Prudhoe Bay Oil Field show indirect impacts can lag behind planned developments by many years and the total area eventually...
Ned H. Euliss Jr., Stanley W. Harris
1987, Journal of Wildlife Management (51) 724-732
The feeding ecology of northern pintails (Anas acuta) and green-winged teal (A. crecca) was examined from October through February 1979-81 in 4 major seasonal marsh types in the Central Valley, California. The esophagi of 262 pintails contained 72.3% plant seeds and 27.7% animal matter. The esophagi of 173 green-winged teal...
C.R. Fisher, J.J. Childress, R.S. Oremland, R.R. Bidigare
1987, Marine Biology (96) 59-71
Undescribed hydrocarbon-seep mussels were collected from the Louisiana Slope, Gulf of Mexico, during March 1986, and the ultrastructure of their gills was examined and compared to Bathymodiolus thermophilus, a mussel collected from the deep-sea hydrothermal vents on the Gala??pagos Rift in March 1985. These closely related mytilids both contain abundant...
J. Langbein, M. Linker, D. Tupper
1987, Journal of Geophysical Research Solid Earth (92) 9423-9442
Line length changes from several baselines in a trilateration network within the Long Valley caldera clearly define a decrease in strain rate from June 1983 through October 1985. The data consist of more than 1600 length measurements on 23 baselines using a two-color geodimeter, which has a precision of 0.2...
F. M. Bullard
1987, Earthquakes & Volcanoes (USGS) (19) 199-204
About daybreak of the next morning, the perfect cone-shaped outline of Stromboli appeared on the horizon. No "red" glare could be seen, but a prominent column of white vapor was rising from the crater, and at infrequent emitted. As the boat steamed around the edge of Stromboli, the big "scar'...
W. W. Patton Jr., T. W. Stern, Joseph G. Arth, C. Carlson
1987, Journal of Geology (95) 118-126
New U/Pb zircon ages from the Ray Mountains of central Alaska clarify the plutonic history of the Ruby geanticline and support earlier suggestions that the Ruby geanticline and S Brooks Range were once parts of the same tectonostratigraphic terrane. U/Pb zircon ages of 109 to 112 Ma from the Ray...
D. Thompson, J.C. Cain
1987, Physics of the Earth and Planetary Interiors (48) 386-388
Cubic spline fits to the DGRF/IGRF series indicate agreement with other analyses showing the 1969-1970 magnetic jerk in the h ??12 and g ??02 secular change coefficients, and agreement that the h ??11 term showed no sharp change. The variation of the g ??01 term is out of phase with...
Gary M. Russell, Mark Stewart, Aaron L. Higer
1987, Water Resources Bulletin (23) 863-866
Examples of effects of low topographic relief are noted in southeast Florida where water-table gradients are 7 multiplied by 10** minus **4 to 5 multiplied by 10** minus **4 feet per foot. Water-table mounding beneath the landfill and the drainage effects of nearby ditches and well have created multiple leachate...
N.W. Peddie, A.K. Zunde
1987, Physics of the Earth and Planetary Interiors (48) 330-337
Geomagnetic measurements from land, marine and aerial surveys conducted in the years 1945-1964 were used to test the 14 models proposed as additions, for that period, to the series of definitive geomagnetic reference field (DGRF) models. Overall, NASA's 'SFAS' models and the BGS (British Geological Survey) models agree best with...
J. E. Cloern
1987, Continental Shelf Research (7) 1367-1381
In many coastal plain estuaries light attenuation by suspended sediments confines the photic zone to a small fraction of the water column, such that light limitation is a major control on phytoplankon production and turnover rate. For a variety of estuarine systems (e.g. San Francisco Bay, Puget Sound, Delaware Bay,...
W.H. Campbell
1987, Physics of the Earth and Planetary Interiors (48) 193-199
The effects of three methods of data selection upon the assumed main field levels for geomagnetic observatory records used in main field modeling were investigated for a year of very low solar-terrestrial activity. The first method concerned the differences between the year's average of quiet day field values and the...
Henry J. Moore
1987, IMAP 1851
No abstract available....
R. L. Houghton, Donald C. Thorstenson, Donald W. Fisher, G.H. Groenewold
1987, Professional Paper 1340
NoticeThe publication has been withdrawn because it contained errors or contained information that could not be verified for accuracy....
S.B. Bhagwat
1987, International Journal of Coal Geology (8) 367-373
Government regulations on health, safety and environment have been poppular blamed for the declining productivity in U.S. coal mines since 1970. The stagnation in the coal industry east of the Mississippi is alleged to have been caused by this declining productivity...
M. H. Carr
1987, Earthquakes & Volcanoes (USGS) (19) 128-137
Eruptions of ammonia, water, and sulfur. These have become some of the concerns of planetary volcanologists as they try to understand volcanic processes on other planetary bodies. As exploration of the Solar System has continues, we have been confronted with more and more exotic forms of volcanism and have come...
S. N. Hamlin, S. S. Anthony
1987, Water-Resources Investigations Report 87-4047
The water system that supplies the heavily populated Dalap-Uliga-Darrit (DUD) area of Majuro atoll, Marshall Island, relies almost entirely upon airstrip catchment of rain water. Droughts cause severe water supply problems and water rationing is required, even during periods of normal rainfall. The Laura area contains a substantial lens of...
Peter D. Warwick, Romeo M. Flores
Frank G. Ethridge, Romeo M. Flores, editor(s)
1987, Book chapter, Recent developments in fluvial sedimentology
Vertical and lateral facies changes in the lower part of the Eocene Wasatch Formation in the Powder River Basin, Wyoming represent an evolution of fluvial systems that varied from meandering to anastomosing. The meandering facies in the lower part of the study interval formed in a series of broad meanderbelts...
Peter Popenoe, Vernon J. Henry, Faisal M. Idris
1987, Geology (15) 327-332
Analyses of seismic reflection profiles and stratigraphic data indicate a continuation of the Gulf trough trend across eastern South Carolina and offshore between Cape Fear and Cape Hatteras, North Carolina. Seismic profiles show a linear northeast-trending zone of nondeposition and erosion and areas...
Y.K. Kharaka, A.S. Maest, W.W. Carothers, LeRoy M. Law, P. J. Lamothe, T. L. Fries
1987, Applied Geochemistry (2) 543-561
Oil-field brines are the most favored ore-forming solutions for the sediment-hosted Mississippi Valley-type ore deposits. Detailed inorganic and organic chemical and isotope analyses of water and gas samples from six oil fields in central Mississippi, one of the very few areas...
G.H. Rau, M.A. Arthur, W.E. Dean
1987, Earth and Planetary Science Letters (82) 269-279
At two locations in the Atlantic Ocean (DSDP Sites 367 and 530) early to middle Cretaceous organic-carbon-rich beds (“black shales”) were found to have significantly lower δ15N values (lower15N/14N ratios) than adjacent organic-carbon-poor beds (white limestones or green claystones). While these lithologies are of marine origin, the black strata in...
T.C. Moyer, D. A. Swanson
1987, Journal of Volcanology and Geothermal Research (32) 299-319
Secondary hydroeruptions occur in pyroclastic-flow deposits when water or ice is trapped beneath hot pyroclastic debris and rapidly heated to steam. These eruptions display various styles of activity including fumarolic degassing, tephra fountaining, and explosive cratering. The deposits, which occupy the layer 3 stratigraphic position on the top of pyroclastic-flow...
A. Simon, C. H. Robbins
1987, Environmental Geology and Water Sciences (9) 109-118
Channel modifications from 1968 to 1969 on the South Fork Forked Deer River in western Tennessee have caused upstream degradation, downstream aggradation, and bank failures along the altered channels, adjacent reaches, and tributaries. The result of these adjustments is a general decrease in gradient as the channel attempts to absorb...
D. H. Peterson, M.J. Perry, K.E. Bencala, M.C. Talbot
1987, Estuarine, Coastal and Shelf Science (24) 813-832
A simple exponential equation is used to describe photosynthetic rate as a function of light intensity for a variety of unicellular algae and higher plants where photosynthesis is proportional to (1-e−β1). The parameter β (=Ik−1">=Ik−1) is derived by a simultaneous curve-fitting method, where I is incident...
F.H. Nichols
D. M. Goodrich, editor(s)
1987, NOAA Estuary of the Month Seminar Series (6) 65-68
The benthos of San Francisco Bay (the community of invertebrates living in bottom sediments) is an important source of food for fish, birds, and humans, and is dominated by exotic species introduced during the past 130 years. These species are largely small, hardy, short-lived, rapidly-reproducing species (much like weeds) whose...