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Page 3994, results 99826 - 99850

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Genesis of the West Siberian Basin and its petroleum geology: A recent interpretation
J. W. Clarke
1994, International Geology Review (36) 985-996
A prominent Western specialist on the geology of the oil and gas deposits of Russia provides an interpretation of the genesis of the West Siberian basin, relying, in part, on most recent Russian studies as well as information made available in 1994 evaluating the reserves of Russia's...
Duration of protection against Aeromonas salmonicida brook trout immunostimulated with glucan or chitosan by injection or immersion
D. P. Anderson
1994, Progressive Fish-Culturist (56) 258-261
Brook trout (Salvelinus fontinalis) were given the immunostimulants glucan or chitosan by single injections or by a 30‐min immersion to induce protection against the fish disease furunculosis. At 1, 2, 3, 7, 14, 21, and 28 d after immunostimulation, sublots from these groups were challenged by a 1‐min bath exposure...
Reductive dehalogenation of hexachloroethane, carbon tetrachloride, and bromoform by anthrahydroquinone disulfonate and humic acid
G.P. Curtis, M. Reinhard
1994, Environmental Science & Technology (28) 2393-2401
The reductive dehalogenation of hexachloroethane (C2Cl6), carbon tetrachloride (CCl4), and bromoform (CHBr3) was examined at 50??C in aqueous solutions containing either (1) 500 ??M of 2,6-anthrahydroquinone disulfonate (AHQDS), (2) 250 ??M Fe2+, or (3) 250 ??M HS-. The pH ranged from 4.5 to 11.5 for AHQDS solutions and was 7.2...
Simulating and mapping spatial complexity using multi-scale techniques
L. De Cola
1994, International Journal of Geographical Information Systems (8) 411-427
A central problem in spatial analysis is the mapping of data for complex spatial fields using relatively simple data structures, such as those of a conventional GIS. This complexity can be measured using such indices as multi-scale variance, which reflects spatial autocorrelation, and multi-fractal dimension, which characterizes the values of...
Indicators of sewage contamination in sediments beneath a deep-ocean dump site off New York
Michael H. Bothner, H. Takada, I.T. Knight, R. T. Hill, B. Butman, J.W. Farrington, R.R. Colwell, J. F. Grassle
1994, Marine Environmental Research (38) 43-59
The world's largest discharge of municipal sewage sludge to surface waters of the deep sea has caused measurable changes in the concentration of sludge indicators in sea-floor sediments, in a spatial pattern which agrees with the predictions of a recent sludge deposition model. Silver, linear alkylbenzenes, coprostanol, and spores of...
Chaotic deposition by a giant wave, Molokai, Hawaii
J.G. Moore, W.B. Bryan, K.R. Ludwig
1994, Geological Society of America Bulletin (106) 962-967
A coral-basalt breccia-conglomerate is exposed >60m above present sea level and nearly 2km inland from the present shoreline on the southwest side of East Molokai Volcano. This deposits was apparently laid down by a giant wave that broke over an outer reef, similar to the present fringing reef, and advanced...
Hydrogeologic Atlas of Aquifers in Indiana
Joseph M. Fenelon, K.E. Bobay, T. K. Greeman, M.E. Hoover, D.A. Cohen, K. K. Fowler, M.C. Woodfield, J. M. and Durbin
1994, Water-Resources Investigations Report 92-4142
Aquifers in 12 water-management basins of Indiana are identified in a series of 104 hydrogeologic sections and 12 maps that show the thickness and configuration of aquifers. The vertical distribution of water-bearing units and a generalized potentiometric profile are shown along 3,500 miles of section lines that were constructed...
Variations in rupture process with recurrence interval in a repeated small earthquake
J.E. Vidale, W.L. Ellsworth, A. Cole, Chris Marone
1994, Nature (368) 624-626
In theory and in laboratory experiments, friction on sliding surfaces such as rock, glass and metal increases with time since the previous episode of slip. This time dependence is a central pillar of the friction laws widely used to model earthquake phenomena. On natural faults, other properties, such as rupture...
Hydraulics and sediment transport processes in a pool-riffle rocky mountain stream
Douglas M. Thompson
1994, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
Sediment transport processes related to varying channel-bed morphology were investigated from April to November, 1993 along a 1 km pool-riffle and step-pool reach of North Saint Vrain Creek, a small mountain stream in the Northern Colorado Rocky Mountains. Three hundred sixteen 16-256 mm tracer particles placed in two separate pool-riffle-pool...
Model for dolomite formation in northwest Florida
C.R. Cooper, J.A. Tindall
1994, Journal of Hydrology (157) 367-391
Petrographic methods are used to examine the nature of the Floridan post-Oligocene unconformity and diagenetic responses in the associated carbonate units. The study addresses the depositional environment and the character of sediments associated with the unconformity, types and timing of diagenetic changes, and mode of dolomitization for the Suwannee Limestone...
Water resources data, West Virginia, water year 1993
S.M. Ward, B.C. Taylor, M.V. Mathes
1994, Water Data Report WV-93-1
Water-resources data for the 1993 water year for West Virginia consist of records of stage, discharge, and water quality of streams; contents of reservoirs; and water levels of observations wells. This report contains discharge records for 78 streamflow-gaging stations; stage only records for 11 gaging stations; annual maximum discharge at...
Water resources data, Oklahoma, water year 1993: Volume 1. Arkansas River Basin
R.L. Blazs, D.M. Walters, T.E. Coffey, D.K. White, D.L. Boyle, J.F. Kerestes
1994, Water Data Report OK-93-1
Volumes 1 and 2 of the water resources data for the 1993 water year for Oklahoma consists of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes or reservoirs; and water levels of ground-water wells. This report contains discharge records for 135 gaging...
Critical and supercritical flows in two unstable, mountain rivers, Toutle river system, Washington
Andrew Simon, J. H. Hardison III
1994, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
Critical and supercritical flows are generally considered to be rare occurrences in natural river channels. This paper presents data and results pertaining to the existence of measured critical and supercritical flows at gaging stations on the North Fork Toutle River (NFT) and Toutle River main stem (TR). The data set...