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Page 5279, results 131951 - 131975

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Prediction monitoring and evaluation program; a progress report
R.N. Hunter, J.S. Derr
1978, Earthquake Information Bulletin (USGS) (10) 93-96
Can your friend's relative really predict earthquakes? Or how about that fellow in the mountains who has always liked geology, does he have the answer to the "when" of earthquakes? And if these people do actually predict an earthquake, is it a lucky guess or are they tuned in to...
How often will earthquakes recur on the San Andreas Fault?
R. E. Wallace
1978, Earthquake Information Bulletin (USGS) (10) 76-81
The relationship between magnitude and abundance of earthquakes, called a recurrence curve, has been derived for many regions of the world from seismographic records. AS an example, Clarence Allen and his associates at the California Institute of Technology have obtained recurrence rates for the southern California region by incorporating data...
Sea-level changes before large earthquakes
M. Wyss
1978, Earthquake Information Bulletin (USGS) (10) 165-168
Changes in sea level have long been used as a measure of local uplift and subsidence associated with large earthquakes. For instance, in 1835, the British naturalist Charles Darwin observed that sea level dropped by 2.7 meters during the large earthquake in Concepcion, CHile. From this piece of evidence and...
Survival of the salmonid viruses infectious hematopoietic necrosis (IHNV) and infectious pancreatic necrosis (IPNV) in ozonated, chlorinated, and Untreated waters
Gary A. Wedemeyer, Nancy C. Nelson, Cathy A. Smith
1978, Journal of the Fisheries Research Board of Canada (35) 875-879
Ozone and chlorine inactivation curves were determined in three water types at 10 °C for the fish pathogenic viruses infectious hematopoietic necrosis (IHNV) and infectious pancreatic necrosis (IPNV). In phosphate-buffered, distilled water (PBDW) an ozone dose of 0.01 mg/L for 30 or 60 s inactivated IHNV or IPNV, respectively, suspended at a...
Effect of capture stress on plasma enzyme activities in rainbow trout (Salmo gairdneri)
G.R. Bouck, M. A. Cairns, A. R. Christian
1978, Journal of the Fisheries Research Board of Canada 1485-1488
Four capture methods were used to collect domesticated rainbow trout (Salmo gairdneri): angling, electroshocking, seining, and direct netting (control). Blood was sampled rapidly upon capture, usually within 2 min. No significant differences were noted within the time frame of the experiment between the four capture groups for plasma protein concentration, lactate...
Prevention and treatment of Nitrite toxicity in juvenile steelhead trout (Salmo gairdneri)
Gary A. Wedemeyer, W. T. Yasutake
1978, Journal of the Fisheries Research Board of Canada (35) 822-827
The efficacy of mineral salts, pH, and tetramethylthianine (methylene blue) treatment in reducing the acute toxicity of nitrite to fingerling steelhead trout (Salmo gairdneri) was determined using a static bioassay system at 10 °C. The acute toxicity (96-h LC50) was reduced by a factor of about 24 for 5-g steelhead...
Tectonomagnetic effects
M. Johnston
1978, Earthquake Information Bulletin (USGS) (10) 82-87
Measurements of the actual stress within the Earth and its changes with time are very difficult. It is much easier to monitor the direct effects of this stress, such as ground strain, or the indirect effects, such as changes in resistivity, strain, changes in seismic velocity or changes in magnetic...
Tiltmeter studies in earthquake prediction
M. Johnston
1978, Earthquake Information Bulletin (USGS) (10) 182-186
Our knowledge is still very limited as to the way in which the Earth's surface deforms around active faults and why it does so. By far the easiest method of providing clues to the mechanisms involved is to record the associated pattern of tilt of the Earth's surface.  tilt measurements give...
Quality of water in Pascagoula and Escatawpa Rivers, Jackson County, Mississippi
Gene A. Bednar
1978, Open-File Report 78-913
The chemical and physical properties and the range of concentrations of most constituents in water in the Pascagoula and Escatawpa Rivers during the period May 17-19, 1977, varied rapidly between high and low tides, primarily as the result of interactions of freshwater inflow with highly mineralized Gulf waters. The water...
Continuous strain measurements near the San Andreas Fault
M. Johnston
1978, Earthquake Information Bulletin (USGS) (10) 187-191
Changes in the state of stress in the Earth's crust produces corresponding changes in the state of strain and may result, as a consequence, in damaging earthquakes. Monitoring ground strain can, therefore, help us in understanding how stress changes occur and when they are likely to lead to this kind...
Paleomagnetic evidence for a Late Cretaceous deformation of the Great Valley Sequence, Sacramento Valley, California
Edward A. Mankinen
1978, Journal of Research of the U.S. Geological Survey (6) 383-390
Paleomagnetic samples from five localities within the Great Valley sequence range in age from Late Jurassic to Late Cretaceous. All samples possess normal polarity, and alternating-field demagnetization experiments show that the remanence was acquired after the sequence was folded. A mean paleomagnetic pole position determined from 17 demagnetized samples is...
Impact of potential phosphate mining on the hydrology of Osceola National Forest, Florida
James A. Miller, G.H. Hughes, R. W. Hull, John Vecchioli, P. R. Seaber
1978, Water-Resources Investigations Report 78-6
Potentially exploitable phosphate deposits underlie part of Osceola National Forest, Fla. Hydrologic conditions in the forest are comparable with those in nearby Hamilton County, where phosphate mining and processing have been ongoing since 1965. Given similarity of operations, hydroloigc effects of mining in the forest are predicted. Flow of stream...