Ground-water and surface-water interactions in Minnesota and Wisconsin wetlands
R. G. Brown, J. R. Stark, G. L. Patterson
1985, Book chapter, The ecology and management of wetlands
The interaction between ground water and surface water in wetlands is complex and depends on the hydrologic setting of the particular wetland. Hydrologic characteristics have been used in Wisconsin to classify wetlands into four categories; surface-waterdepression wetlands, surface-water-slope wetlands, ground-waterdepression wetlands, and ground-water-slope wetlands, as described by Novitzki (1978). The...
Seasonal cycles of zooplankton from San Francisco Bay
Julie W. Ambler, James E. Cloern, Anne Hutchinson
1985, Hydrobiologia (129) 177-197
The two estuarine systems composing San Francisco Bay have distinct zooplankton communities and seasonal population dynamics. In the South Bay, a shallow lagoon-type estuary, the copepods Acartia spp. and Oithona davisae dominate. As in estuaries along the northeast coast of the U.S., there is a seasonal succession involving the replacement...
Remote sensing of tidal chlorophyll-a variations in estuaries
Glenn P. Catts, Siamak Khorram, James E. Cloern, Allen W. Knight, Stephen D. Degloria
1985, International Journal of Remote Sensing (6) 1685-1706
Simultaneous acquisition of surface chlorophyll-a concentrations for 39 samples from boats and Daedalus 1260 Multispectral Scanner data from a U-2 aircraft was conducted in the northern reaches of San Francisco Bay on 28 August 1980. These data were used to develop regression models for predicting surface chlorophyll-a concentrations over the...
Metallic-mineral assessment of the Jabal Habashi quadrangle, sheet 26F, Kingdom of Saudi Arabia
Donlad H. Richter, Michael S. Allen, E. A. Du Bray, M. Dean Kleinkopf, John S. Pallister
1985, Report
An interagency report prepared by the U.S. Geological Survey Saudi Arabian Mission for the Ministry of Petroleum and Mineral Resources, Kingdom of Saudi Arabia. The work on which this report was based was performed in accordance with a cooperative agreement between the U.S. Geological Survey and the Ministry of Petroleum and...
Development of a computerized wetlands mapping data base for use in section 404 jurisdictional determinatins in San Francisco Bay
Patrick J. Cotter, James B. Johnston, Millicent L. Quammen, Dennis Peters
1985, Conference Paper, Coastal zone '85 : Proceedings of the Fourth Symposium on Coastal and Ocean Management
Development and habitat alteration in the San Francisco Bay-Delta system have placed the remaining wetlands in jeopardy. The Bay-Delta wetlands will be mapped in a joint project of the U. S. Environmental Protection Agency (EPA) and the U. S. Fish and Wildlife Service (FWS). Maps at a 1:24,000 scale will...
Analysis of colonial wading bird habitat in coastal Louisiana
R.D. Greer, C.E. Keller
1985, Conference Paper, Proceedings of the fourth coastal marsh and estuary management symposium
No abstract available....
A national perspective of Louisiana's coastal wetlands loss
Robert E. Stewart Jr.
1985, Conference Paper, Proceedings of the fourth coastal marsh and estuary management symposium : held at Prince Murat Motor Inn, Baton Rouge, Louisiana, June 6-8, 1984
No abstract available...
Links between magma-tectonic rate balances, plutonism, and volcanism
H. R. Shaw
1985, Journal of Geophysical Research Solid Earth (90) 11,275-11,288
With Smith's (1979) model of ash flow magmatism as the point of departure, quantitative regimes of crustal magmatic evolution are outlined. The average extrusive regime of ash flow magmatism operates at a rate of about 0.001 km3/yr; progressively larger episodes of increasing repose times characterize the evolution of caldera-forming eruptions....
Age of biostratigraphic horizons within the Ordovician and Silurian systems
Michael J. Kunk, J. Sutter, J. D. Obradovich, Marvin A. Lanphere
1985, Geological Society Memoir (10) 89-92
Three samples that have a bearing on the age of horizons within the Ordovician and Silurian systems, two previously dated by the conventional K-Ar method and one by the 40Ar/39 Ar total-fusion method, have been reanalysed using the 40Ar/39Ar age-spectrum method. Conventional K-Ar and total-fusion 40Ar/39Ar ages can always be questioned because of the...
Volcanic rocks as sources of uranium: Current perspective and future directions
Robert A. Zielinski
1985, Conference Paper, Uranium deposits in volcanic rocks: Proceedings of a Technical Committee Meeting on Uranium Deposits in Volcanic Rocks
No abstract available....
Automated derivation of hydrologic basin characteristics from digital elevation model data
Susan K. Jenson
1985, Conference Paper, Auto-Carto VII: Proceedings of the digital representations of spatial knowledge
Digital elevation model (DEM) data in a raster format can be used to automatically derive the drainage characteristics of an area. A procedure has been designed that is capable of operating on matrices of elevation data having no algorithmically imposed size limit, while performing within the resolution and accuracy tolerances...
An investigation of hydraulic conductivity estimation in a ground-water flow study of Northern Long Valley, New Jersey
Mary C. Hill
1985, Thesis
The purpose of this study was to develop a methodology to be used to investigate the aquifer characteristics and water supply potential of an aquifer system. In particular, the geohydrology of northern Long Valley, New Jersey, was investigated. Geohydrologic data were collected and analyzed to characterize the site. Analysis was...
Pup production, abundance, and breeding distribution of northern elephant seals at San Nicolas Island, winter 1981
1985, California Fish and Game (71) 53-55
A major breeding colony of northern elephant seals, Mirounga angustirostris, occurs on San Nicolas Island, California. Due to commercial hunting, elephant seals were extinct on San Nicolas Island by the end of the 19th century. Subsequent recovery of the population has been well documented (Table 1). Census data...
The Meshik Arc: An eocene to earliest miocene magmatic arc on the Alaska Peninsula
Frederic H. Wilson
1985, Alaska Division of Geological & Geophysical Surveys Professional Reports DGGS PR 88
The Meshik arc is herein defined to include Eocene to earliest Miocene volcanic and hypabyssal rocks and the associated Meshik and Stepovak Formations of the central Alaska Peninsula. Igneous rocks range from basalt to dacite and yielded K-Ar ages of 48 to 22 m.y. The Meshik arc is oriented along...
Outline of tertiary stratigraphy and depositional history of the U.S. Atlantic Coastal Plain
L. W. Ward, G. Strickland, C. Wylie Poag
1985, Book chapter, Geologic evolution of the United States Atlantic margin
No abstract available....
Equivalent radiolarian ages from ophiolitic terranes of Cyprus and Oman
Charles D. Blome, William P. Irwin
1985, Geology (13) 401-404
Radiolarian biostratigraphy shows that umberiferous strata overlying the Troodos ophiolite in Cyprus are Turonian in age and are thus essentially contemporaneous with similar strata that overlie the Samail ophiolite in Oman. However, this radiolarian age is markedly older than Campanian isotopic ages measured on the underlying rocks of the Troodos...
Seismic stratigraphy of the continental slope and rise seaward of Georges Bank
J. S. Schlee, C. Wylie Poag, K. Hinz
1985, Book chapter, Geologic Evolution of the United States Atlantic margin
No abstract available....
National Pesticide Monitoring Program: Residues of organochlorine chemicals in freshwater fish, 1980–81
Christopher J. Schmitt, James L. Zajicek, M. A. Ribick
1985, Archives of Environmental Contamination and Toxicology (14) 225-260
The U.S. Fish and Wildlife Service analyzed residues of organochlorine chemicals in 315 composite samples of whole fish collected in 1980–81 from 107 stations nationwide as part of the National Pesticide Monitoring Program (NPMP). The mean concentrations of total DDT and allp,p′-ho-mologs exceptp,p′-DDT showed significant but...
Depositional history of the Cretaceous series in the U.S. Atlantic Coastal Plain: Stratigraphy, paleoenvironments, and tectonic controls of sedimentation
C. Wylie Poag
1985, Book chapter
No abstract available....
Energy dispersive X-ray analysis of ocean ferromanganese crusts using conventional ZAF corrections
R.F. Commeau, J.A. Commeau, F. W. Brown, F.T. Manheim
1985, Scanning Electron Microscopy (1985) 143-149
No abstract available....
Population biology of bluegills, Lepomis macrochirus, in lotic habitats on the irrigated San Joaquin Valley floor
M. K. Saiki, C. J. Schmitt
1985, California Fish and Game (71) 225-244
Rapid expansion of irrigated agriculture in the western United States has prompted concerns for aquatic resources. Although the impacts of irrigation activities on quality and quantity of river water are well documented (e.g., high turbidity from soil erosion, eutrophication from nutrient runoff, pesticide contamination, reduced dis- charge), their effects on...
History of the Atlantic continental margin off Florida: The Blake Plateau basin
William P. Dillon, C. K. Paull, L. Gilbert, C. Wylie Poag
1985, Book chapter, Geologic evolution of the United States Atlantic Margin
No abstract available....
Distribution and history of the freshwater lake in Block Island Sound, Rhode Island and New York, during the late Wisconsinan
Sally W. Needell, R. S. Lewis
1985, Northeastern Geology (7) 28-32
No abstract available....
Geologic evolution of the United States Atlantic Margin
C. W. Poag
1985, Book
This volume compiles the significant findings which began to be accumulated in 1974 during offshore petroleum explorations in the Atlantic Continental Shelf. It's the first presentation of current geological data from the U.S. Atlantic Margin from the inner edge of the coastal plain to the deep sea. A seismic grid...
Emission spectrographic and atomic absorption analyses of rock, mineral occurrence, prospect, and deposit samples from the Mount Hayes quadrangle, eastern Alaska Range, Alaska
R. E. Zehner, R. M. O’Leary, G.W. Day, S. J. Sutley, W. J. Nokleberg, R. D. Koch
1985, Open-File Report 84-774
No abstract available....
