Manganese inhibition of microbial iron reduction in anaerobic sediments
Derek R. Lovley, Elizabeth J.P. Phillips
1988, Geomicrobiology Journal (6) 145-155
Potential mechanisms for the lack of Fe(II) accumulation in Mn(IV)‐con‐taining anaerobic sediments were investigated. The addition of Mn(IV) to sediments in which Fe(III) reduction was the terminal electron‐accepting process removed all the pore‐water Fe(II), completely inhibited net Fe(III) reduction, and stimulated Mn(IV) reduction. In a solution buffered at pH 7,...
Overview of the structure and geothermal potential of Newberry Volcano, Oregon
D.V. Fitterman
1988, Journal of Geophysical Research Solid Earth (93) 10059-10066
Evidence from a broad range of geological and geophysical investigations of Newberry Volcano in central Oregon suggests the presence of a small magma body beneath the summit caldera. Drilling has encountered temperatures indicative of a hydrothermal system above the hypothesized magma body. On the basis of hydrothermal mineralogy the temperature...
Thermal regime of the State 2-14 well, Salton Sea Scientific Drilling Project
J.H. Sass, S. S. Priest, L.E. Duda, C.C. Carson, J. D. Hendricks, L.C. Robison
1988, Journal of Geophysical Research Solid Earth (93) 12995-13004
Temperature logs were made repeatedly during breaks in drilling and both during and after flow tests in the Salton Sea Scientific Drilling Project well (State 2–14). The purpose of these logs was to assist in identifying zones of fluid loss or grain and to characterize reservoir temperatures. At the conclusion...
Geochemistry of water at Cajon Pass, California: Preliminary results
Y.K. Kharaka, G. Ambats, William C. Evans, A. F. White
1988, Geophysical Research Letters (15) 1037-1040
Samples of water and associated gases were collected from the Cajon Pass well using downhole samplers, and from the pipe stands at the completion of drill stem tests. The fluids were recovered from fracture systems in granitic rocks from two uncased test intervals located at 1,829...
Depositional environments of the Cache, Lower Lake, and Kelseyville Formations, Lake County, California
Michael J. Rymer, Barry Roth, J. Platt Bradbury, Richard M. Forester
1988, GSA Special Papers (214) 45-62
We describe the depositional environments of the Cache, Lower Lake, and Kelseyville Formations in light of habitat preferences of recovered mollusks, ostracodes, and diatoms. Our reconstruction of paleoenvironments for these late Cenozoic deposits provides a framework for an understanding of basin evolution and deposition in the Clear Lake region. The...
Assessment of lupin flour as a diet ingredient for rainbow trout (Salmo gairdneri)
S. G. Hughes
1988, Aquaculture (71) 379-385
Studies were conducted to determine the value of lupin flour as a replacement for full-fat soybean meal (FFSM) in the diet of rainbow trout (Salmo gairdneri). Energy and digestibility values for lupin were determined using a metabolism chamber and it was found that trout utilize lupin well. The gross energy,...
The metal oxide fraction of pelagic sediment in the equatorial North Pacific Ocean: A source of metals in ferromanganese nodules
D.Z. Piper
1988, Geochimica et Cosmochimica Acta (52) 2127-2145
Pelagic sediment recovered at DOMES Site A in the equatorial North Pacific (151°W, 9° 15′N) consists of a surface homogeneous layer, approximately 10 cm thick, overlying a strongly mottled layer that is lighter in color. The radiolarian composition of both units is Quaternary. In areas where this sediment was only...
Statistical Methods and Sampling Design for Estimating Step Trends in Surface-Water Quality
Robert M. Hirsch
1988, Water Resources Bulletin (24) 493-503
This paper addresses two components of the problem of estimating the magnitude of step trends in surface water quality. The first is finding a robust estimator appropriate to the data characteristics expected in water-quality time series. The J. L. Hodges-E. L. Lehmann class of estimators is found to be robust...
Effects of kelp forest removal on associated fish assemblages in central California
James L. Bodkin
1988, Journal of Experimental Marine Biology and Ecology (117) 227-238
Visual surveys along subtidal belt transects were used to compare fish assemblages on an experimental and a control site before and after the removal of a canopy-forming kelp forest. The giant kelp Macrocystis pyrifera (L.) C.A. Agardh was removed at the holdfast from ≈ 1 ha of high relief structurally complex rock...
Experimental oxygen isotope fractionation between siderite-water and phosphoric acid liberated CO2-siderite
W.W. Carothers, L.H. Adami, R.J. Rosenbauer
1988, Geochimica et Cosmochimica Acta (52) 2445-2450
The equilibrium fractionation of O isotopes between synthetic siderite and water has been measured at temperatures ranging from 33° to 197°C. The fractionation between siderite and water over this temperature range can be represented by the equation: 103 ln α = 3.13 × 106T−2 −...
Concurrent mobile on-site and in situ striped bass contaminant and water quality studies in the Choptank River and upper Chesapeake Bay
L. W. Hall Jr., S. J. Bushong, M.C. Ziegenfuss, W. S. Hall, R. L. Herman
1988, Environmental Toxicology and Chemistry (7) 815-830
In situ and mobile on-site striped bass prolarval and yearling survival studies were conducted in the Choptank River and in the Chesapeake and Delaware (C & D) Canal area of the Upper Chesapeake Bay. Extensive chemical analyses of both organic and inorganic contaminants in the habitat water were performed and water...
Effect of dietary propylene glycol on growth, survival, histology, and carcass composition of Atlantic salmon
S. G. Hughes
1988, Progressive Fish-Culturist (50) 12-15
Atlantic salmon (Salmo salar) were fed diets containing 0, 5, 10, 15, or 25% propylene glycol (a compound used to maintain high dietary moisture levels) to determine beneficial or detrimental effects. Weight gain and feed conversion efficiency were better for fish fed the diets containing 5–15% propylene glycol than in...
High-resolution 40Ar 39Ar chronology of Oligocene volcanic rocks, San Juan Mountains, Colorado
M. A. Lanphere
1988, Geochimica et Cosmochimica Acta (52) 1425-1434
The central San Juan caldera complex consists of seven calderas from which eight major ash-flow tuffs were erupted during a period of intense volcanic activity that lasted for approximately 2 m.y. about 26–28 Ma. The analytical precision of conventional K-Ar dating in this time interval is not sufficient to unambiguously...
Motor-operated valve for fish culturists
J. T. Fuss
1988, Progressive Fish-Culturist (50) 121-124
Many fish culture systems require motoroperated valves to regulate water flow. The expense of commercial units can be prohibitive but, by using inexpensive components and a little assembly time, a manual valve can be motorized for a fraction of the cost....
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...
An outbreak of type E botulism among common loons (Gavia immer) in Michigan's Upper Peninsula
Christopher J. Brand, Stephen Schmitt, Ruth M. Duncan, Thomas M. Cooley
1988, Journal of Wildlife Diseases (24) 471-476
An epizootic of type E botulism (Clostridium botulinum) occurred among common loons (Gavia immer) along the Lake Michigan shore of Michigan's Upper Peninsula (USA) during October and November 1983. An estimated 592 dead loons washed ashore along the Garden Peninsula. Type E botulinal toxin was demonstrated in blood samples and...
Estimates of gains and losses for reservoirs on the Snake River from Blackfoot to Milner, Idaho, for selected periods, 1912 to 1983
L.C. Kjelstrom
1988, Water-Resources Investigations Report 87-4063
Croplands in the semiarid central part of the Snake River Plain are dependent on the availability of irrigation water, most of which comes from the Snake River. Allocation of irrigation water from the river requires that gains and losses be determined for American Falls Reservoir, Lake Walcott, and Milner Lake....
Avian morbidity and mortality from botulism, aspergillosis, and salmonellosis at Jamaica Bay Wildlife Refuge, New York, USA
C. J. Brand, R. M. Windingstad, Lynne M. Siegfried, R. M. Duncan, R.M. Cook
1988, Colonial Waterbirds (11) 284-292
During the summers of 1981 and 1982, studies were conducted at Jamaica Bay Wildlife Refuge, Long Island, New York, to determine whether annual water-level drawdowns used to create shorebird habitat also led to the occurrence of avian botulism (Clostridium botulinum type C). Low levels of morbidity and mortality from avian...
Compositional evolution of the zoned calcalkaline magma chamber of Mount Mazama, Crater Lake, Oregon
C. R. Bacon, T. H. Druitt
1988, Contributions to Mineralogy and Petrology (98) 224-256
The climactic eruption of Mount Mazama has long been recognized as a classic example of rapid eruption of a substantial fraction of a zoned magma body. Increased knowledge of eruptive history and new chemical analyses of ∼350 wholerock and glass samples of the climactic ejecta, preclimactic rhyodacite flows and...
Intermediate-term, pre-earthquake phenomena in California, 1975-1986, and preliminary forecast of seismicity for the next decade
R. L. Wesson, C. Nicholson
1988, Pure and Applied Geophysics PAGEOPH (126) 407-446
Intermediate-term observations preceding earthquakes of magnitude 5.7 or greater in California from 1975 through 1986 suggest that: (1) The sudden appearance of earthquakes in a previously inactive area indicates an increased likelihood of a significant earthquake in that area for a period from days to years; (2) these larger earthquakes...
Detailed record of SO2 emissions from Pu'u `O`o between episodes 33 and 34 of the 1983-86 ERZ eruption, Kilauea, Hawaii
T.A. Chartier, William I. Rose Jr., J. B. Stokes
1988, Bulletin of Volcanology (50) 215-228
A tripod-mounted correlation spectrometer was used to measure SO2 emissions from Pu`u `O`o vent, mid-ERZ, Kilauea, Hawaii between Episodes 33 and 34 (June 13 to July 6, 1985). In 24 repose days, 906 measurements were collected, averaging 38 determinations/day. Measurements reflect 13% of the total 576 hours of the repose...
U.S. Fish & Wildlife Service continues pintail and white-fronted goose telemetry studies in California
M. R. Miller, John Y. Takekawa, J. Fleskes, D. Orthmeyer
1988, California Waterfowl 50
No abstract available at this time...
The development of the continental margin of eastern North America-conjugate continental margin to West Africa
William P. Dillon, J. S. Schlee, Kim D. Klitgord
1988, Journal of African Earth Sciences (7) 361-367
The continental margin of eastern North America was initiated when West Africa and North America were rifted apart in Triassic-Early Jurassic time. Cooling of the crust and its thinning by rifting and extension caused subsidence. Variation in amounts of subsidence led to formation of five basins....
Salton Sea Scientific Drilling Program
J.H. Sass
1988, Earthquakes & Volcanoes (USGS) (20) 156-160
This article briefly describes the progress of drilling in the Salton Sea to depths exceeding 10 000 ft (3050 m) in the search for geothermal energy supplies. -A.Scarth...
Estimated use of water in Nebraska, 1985
Eugene K. Steele Jr.
1988, Nebraska water survey paper 64
The estimated volume of 19,187,200 acre-feet of water used in Nebraska during 1985 is an average of 17,116.15 million gallons per day. Surface water supplied 12,925,040 acre-feet or 67.4 percent of the total volume used. The remaining 6,262,160 acre-feet or 32.6 percent was pumped from the groundwater reservoir. Power production was...
