Geohydrology and mathematical simulation of the Pajaro Valley aquifer system, Santa Cruz and Monterey Counties, California
M. J. Johnson, C.J. Londquist, Julie Laudon, H. T. Mitten
1988, Water-Resources Investigations Report 87-4281
Groundwater development has resulted in lowered water levels and seawater intrusion in the Pajaro Valley, California. An investigation was undertaken to describe the geohydrology of the groundwater flow system and to evaluate the response of the system to pumping stresses by using a mathematical model. The aquifer system consists of...
Key to acanthocephala reported in waterfowl
Malcolm E. McDonald
1988, Resource Publication 173
This is the third part of a continuing series on helminths reported in waterfowl (McDonald 1974, 1981). Coots and moorhens (in Family Rallidae, Order Gruiformes) are included with the Anatidae of Anseriformes. The goal of these studies i complete coverage of waterfowl helminths of the world, although the original incentive-inadequate...
Sedimentology of the Argo and Gascoyne abyssal plains, NW Australia: Report on Ocean Drilling Program Leg 123 (Sept. 1–Nov. 1, 1988)
Jurgen Thurow
1988, Carbonates and Evaporites (3) 201-212
Ocean Drilling Program Leg 123 drilled two sites in the Indian Ocean in order to study the rifting and early spreading of one of the world’s oldest ocean basins.Site 765 was drilled in 5714 meters of water on the Argo Abyssal Plain northwest of Australia. The sedimentary succession...
Off-platform Silurian sequences in the Ambler River quadrangle: A section in Geologic studies in Alaska by the U.S. Geological Survey during 1987
Julie A. Dumoulin, Anita G. Harris
1988, Circular 1016
Lithofacies changes in coeval upper Paleozoic rocks have been used to unravel the tectonic history of northern Alaska (for example, Mayfield and others, 1983). Conodont biostratigraphy and detailed petrologic studies are now revealing facies differences in lower Paleozoic rocks that can also be used to constrain their tectono-sedimentary framework (Dumoulin...
Neogene stratigraphy, foraminifera, diatoms, and depositional history of Maria Madre Island, Mexico: Evidence of early Neogene marine conditions in the southern Gulf of California
C. McCloy, J.C. Ingle, J.A. Barron
1988, Marine Micropaleontology (13) 193-212
Foraminifera and diatoms have been analyzed from an upper Miocene through Pleistocene(?) sequence of marine sediments exposed on Maria Madre Island, largest of the Trés Marias Islands off the Pacific coast of Mexico. The Neogene stratigraphic sequence exposed on Maria Madre...
Workshop summary: nutrition, condition, and ecophysiology
K. J. Reinecke, C.D. Ankney, Gary L. Krapu, R. Owen
M.W. Weller, editor(s)
1988, Book chapter, Waterfowl in winter
Feeding ecology of canvasbacks staging on Pool 7 of the Upper Mississippi River
C. E. Korschgen, L. S. George, W. L. Green
M.W. Weller, editor(s)
1988, Book chapter, Waterfowl in winter
Foods consumed by canvasback ducks (Aythya valisineria), food availability, and energetic relationships were studied on Navigation Pool 7 of the upper Mississippi River in 1978, 1979, and 1980. Canvasbacks fed primarily upon winter buds of American wildcelery (Vallisneria americana) and tubers of stiff arrowhead (Sagittaria rigida). In 1980, waterfowl consumed...
Chronic toxicity of tributyltin to Chesapeak Bay biota
L. W. Hall Jr., S. J. Bushong, M.C. Ziegenfuss, W.E. Johnson, R. L. Herman, D.A. Wright
1988, Water, Air, & Soil Pollution (39) 365-376
Foraging by northern fulmars (Fulmarus glacialis) at a nearshore, anticyclonic tidal eddy in the northern Bering Sea, Alaska
J. Christopher Haney
1988, Colonial Waterbirds (11) 318-321
Northern Fulmars (Fulmar glacialis) fed on ice-associated macrofauna (probably gammarid amphipods) and pinniped offal concentrated by convergent flow at an eddy boundary near Northwest Cape on St. Lawrence Island, Alaska. The eddy was anticyclonic, measured approximately 1.5 by 2.25 km, and was generated by nearshore streaming induced by the cape’s...
Ground-water geochemistry of the Albuquerque-Belen Basin, central New Mexico
S. K. Anderholm
1988, Water-Resources Investigations Report 86-4094
The purpose of this study was to define the areal distribution of different water types, use the distribution to help define the groundwater flow system, and identify processes resulting in differences in groundwater quality in the Albuquerque-Belen Basin in central New Mexico. The chemistry of surface water inflow from adjacent...
Microbial and biogeochernical processes Soda Lake, Nevada
R.S. Oremland, J. E. Cloern, Z. Sofer, R. L. Smith, C.W. Culbertson, J. Zehr, L. Miller, B. Cole, R. Harvey, N. Iversen, M. Klug, D. J. Des Marais, G. Rau
1988, Book chapter, Lacustrine petroleum source rocks: Geological Society Special Publication No. 40
Meromictic, alkaline lakes represent modern-day analogues of lacustrine source rock depositional environments. In order to further our understanding of how these lakes function in terms of limnological and biogeochemical processes, we have conducted an interdisciplinary study of Big Soda Lake. Annual mixolimnion productivity (ca. 500 g m-2) is dominated by...
Compilation of hydrologic data for the Edwards aquifer, San Antonio area, Texas, 1986, with 1934-86 summary
G. B. Ozuna, G.M. Nalley, W.G. Stein
1988, Edwards Underground Water District Bulletin 46
No abstract available....
Observed oil and gas field size distributions: A consequence of the discovery process and prices of oil and gas
L.J. Drew, E. D. Attanasi, J.H. Schuenemeyer
1988, Mathematical Geology (20) 939-953
If observed oil and gas field size distributions are obtained by random samplings, the fitted distributions should approximate that of the parent population of oil and gas fields. However, empirical evidence strongly suggests that larger fields tend to be discovered earlier in the discovery process than they would be by...
Determining baseline element composition of lichens. I. Parmelia sulcata at Theodore Roosevelt National Park, North Dakota
L. P. Gough, R. C. Severson, L. L. Jackson
1988, Water, Air, & Soil Pollution (38) 157-167
Element-concentration baselines are given for Parmelia sulcata and associated soils. Parmelia chlorochroa was found sporadically and therefore only representative concentration ranges are reported for this species. Element data include (1) for lichens; Al, As, Ba, B, Ca, Cr, Cu, Fe, Hg, Mn, Ni, P, Sr, S, Ti, V, Y, and Zn; and (2) for...
Eutrophication of lakes and reservoirs: A framework for making management decisions
W. Rast, M. Holland
1988, Ambio (17) 2-12
The development of management strategies for the protection of environmental quality usually involves consideration both of technical and nontechnical issues. A logical, step-by-step framework for development of such strategies is provided. Its application to the control of cultured eutrophication of lakes and reservoirs illustrates its potential usefulness. From the perspective...
Leachate generated by an oil-and-gas brine pond site in North Dakota
E.C. Murphy, A.E. Kehew, G.H. Groenewold, W.A. Beal
1988, Groundwater (26) 31-38
Two unlined ponds were used for holding and evaporation of brines produced with oil and gas at a well site in north-central North Dakota. The brine-evaporation ponds were in use from 1959 up to the late 1970s when they were backfilled and leveled. Continued salt-water...
Predicting tidal currents in San Francisco Bay using a spectral model
Jon R. Burau, Ralph T. Cheng
1988, Conference Paper
This paper describes the formulation of a spectral (or frequency based) model which solves the linearized shallow water equations. To account for highly variable basin bathymetry, spectral solutions are obtained using the finite element method which allows the strategic placement of the computation points in the specific areas of interest...
Dry Stream Reaches in Carbonate Terranes: Surface Indicators of Ground-Water Reservoirs
J. V. Brahana, E. F. Hollyday
1988, Water Resources Bulletin (24) 577-580
In areas where dry stream reaches occur, subsurface drainage successfully competes with surface drainage, and sheet-like dissolution openings have developed parallel to bedding creating the ground-water reservoir. Union Hollow in south-central Tennessee is the setting for a case study that illustrates the application of the dry stream reach technique. In...
Estimation of urban stormwater quality
Marshall E. Jennings, Gary D. Tasker
1988, Conference Paper
Two data-based methods for estimating urban stormwater quality have recently been made available - a planning level method developed by the U.S. Environmental Protection Agency (EPA), and a nationwide regression method developed by the U.S. Geological Survey. Each method uses urban stormwater water-quality constituent data collected for the Nationwide Urban...
Permeability of rock samples from Cajon Pass, California
C. Morrow, J. Byerlee
1988, Geophysical Research Letters (15) 1033-1036
Hydrologic rock properties are important to the debate about the state of stress and heat flow regime of the San Andreas fault. In particular, these properties are pertinent to whether frictional heat generated by high shear stresses can be convected away by circulating ground water,...
Coastal erosion: Processes, timing and magnitudes at the bluff toe
C.H. Carter, D.E. Guy Jr.
1988, Marine Geology (84) 1-17
Five Lake Erie bluffs (one interlaminated clay and silt, three clay-rich diamicts and one shale) were surveyed at about 2-week intervals and after wind storms for up to 5 years. Erosion of the bluff toes along this low-energy coast occurred during...
Sedimentary biomarker and isotopic indicators of the paleoclimatic history of the Walker Lake basin, western Nevada
P.A. Meyers, L. V. Benson
1988, Organic Geochemistry (13) 807-813
Walker Lake, a terminal saline lake in western Nevada, has experienced major fluctuations in its water level due to changes in the regional climate during Quaternary times. As part of a paleo-climatological study of western Nevada, we have investigated organic matter δ13C and C/N values and lipid biomarker contents of sediments deposited...
Comparison of Instream and Laboratory Methods of Measuring Sediment Oxygen Demand
Dennis C. Hall, Wayne R. Berkas
1988, Water Resources Bulletin (24) 571-575
Sediment oxygen demand (SOD) was determined at three sites in a gravel-bottomed central Missouri stream by: (1) two variations of an instream method, and (2) a laboratory method. SOD generally was greatest by the instream methods, which are considered more accurate, and least by the laboratory method. Disturbing stream sediment...
Columbia Bay, Alaska: An 'upside down' estuary
R. A. Walters, E.G. Josberger, C. L. Driedger
1988, Estuarine, Coastal and Shelf Science (26) 607-617
Circulation and water properties within Columbia Bay, Alaska, are dominated by the effects of Columbia Glacier at the head of the Bay. The basin between the glacier terminus and the terminal moraine (sill depth of about 22 m) responds as an ‘upside down’ estuary with the subglacial discharge of freshwater...
Leaching characteristics of a high-calcium fly ash as a function of pH: A potential source of selenium toxicity
D.A. Grisafe, E.E. Angino, S. M. Smith
1988, Applied Geochemistry (3) 601-608
Using a modified extraction procedure, the effect of pH on the leaching of selected elements from Ca-rich (Type C) power plant fly ash was studied. Continuous additions of acetic acid were used to maintain pH values of fly ash slurries at...
