Geologic assessments and characterization of marine sand resources - Gulf of Mexico region
S. Jeffress Williams, Helana A. Cichon
1993, Conference Paper, Coastal zone: Proceedings of the symposium on coastal and ocean management
The U.S. Geological Survey conducts geologic surveys and research in marine areas of the United States and its territories and possessions. An objective in some of the investigations is locating and evaluating marine sand and gravel resources and interpretation of the origins of the sand body deposits. Results from such...
Friction in debris flows: inferences from large-scale flume experiments
Richard M. Iverson, Richard G. LaHusen
Shen Hsieh WenSu S.T.Wen Feng, editor(s)
1993, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
A recently constructed flume, 95 m long and 2 m wide, permits systematic experimentation with unsteady, nonuniform flows of poorly sorted geological debris. Preliminary experiments with water-saturated mixtures of sand and gravel show that they flow in a manner consistent with Coulomb frictional behavior. The Coulomb flow model of Savage...
Relationship between the amount of bone, major cations, and body size in Atlantic salmon, Salmo salar
D. V. Rottiers
1993, Copeia (1993) 440-446
No abstract available....
Elemental composition of a migratory and a land-locked strain of Atlantic salmon Salmo salar
D. V. Rottiers
1993, Comparative Biochemistry and Physiology, Part A: Physiology (104) 93-100
1. The growth and elemental composition of an anadromous strain and a land-locked strain of Atlantic salmon (Salmo salar) were compared.2. All fish were raised from the egg stage under identical conditions.3. The land-locked strain was significantly higher in lipids than the anadromous strain throughout the study.4. Results of exposure...
Hydrothermal palygorskite and ferromanganese mineralization at a central California margin fracture zone
A. E. Gibbs, J.R. Hein, S.D. Lewis, D. S. McCulloch
1993, Marine Geology (115) 47-65
Ferromanganese oxyhydroxide crusts and nodules associated with palygorskite were recovered from the Santa Lucia Escarpment where the Morro Fracture Zone intersects the central California continental margin. Palygorskite was found in pure, high-Mg, low-Al, boxwork-textured veins, and disseminated in poorly consolidated palygorskite-rich mudstone....
Trace contaminants and nutrients in estuaries: The importance of process interdependence
J.S. Kuwabara, J.E. Baker
1993, Estuaries (16) 383-384
No abstract available....
Nonlinear growth dynamics and the origin of fluctuating asymmetry
J.M. Emlen, D.C. Freeman, J.H. Graham
1993, Genetica (89) 77-96
The nonlinear, complex nature of biosynthesis magnifies the impacts of small, random perturbations on organism growth, leading to distortions in adaptive allometries and, in particular, to fluctuating asymmetry. These distortions can be partly checked by cell-cell and inter-body part feedback during growth and development, though the latter mechanism also...
Preliminary results from an isotope hydrology study of the Kilauea Volcano area, Hawaii
M. A. Scholl, C. J. Janik, S. E. Ingebritsen, J.P. Kauathikaua, F. A. Trusdell
Anon, editor(s)
1993, Conference Paper, Transactions - Geothermal Resources Council
Deuterium (D) content of groundwater and precipitation, and tritium content of selected groundwater samples are used to infer flowpaths for groundwater in the Kilauea Volcano area. The spatial distribution of calculated recharge elevations and residence times for groundwater samples tends to support the idea that Kilauea's rift zones comprise leaky...
Considerations and applications of the illite/smectite geothermometer in hydrocarbon-bearing rocks of Miocene to Mississippian age
Richard M. Pollastro
1993, Clays and Clay Minerals (41) 119-133
Empirical relationships between clay mineral transformations and temperature provide a basis for the use of clay minerals as geothermometers. Clay-mineral geothermometry has been applied mainly to diagenetic, hydrothermal, and contact- and burial-metamorphic settings to better understand the thermal histories of migrating fluids, hydrocarbon source beds, and ore and mineral formation.Quantitatively,...
New geophysical models related to heat sources in the geysers-clear lake region, California
W. D. Stanley, R.J. Blakely
Anon, editor(s)
1993, Conference Paper, Transactions - Geothermal Resources Council
We present an updated view of the geological and geophysical complexities of the upper crust in The Geysers-Clear Lake region in order to provide additional information regarding local structures and possible heat sources. New models and ideal-body analysis of the gravity data, new electromagnetic sounding models, and arguments made from...
Measurement of bridge scour at the SR-32 crossing of the Sacramento River at Hamilton City, California, 1987-92
J. C. Blodgett, Carroll D. Harris
Shen Hsieh WenSu S.T.Wen Feng, editor(s)
1993, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
A study of the State Route 32 crossing of the Sacramento River near Hamilton City, California, is being made to determine those channel and bridge factors that contribute to scour at the site. Three types of scour data have been measured-channel bed (natural) scour, constriction (general) scour, and local (bridge-pier...
Summary of the mineral- and energy-resource endowment, BLM roswell resource area, east-central New Mexico
S. Bartsch-Winkler, D. M. Sutphin, M. M. Ball, S.L. Korzeb, R. F. Kness, J.T. Dutchover
1993, Nonrenewable Resources (2) 262-283
In this summary of two comprehensive resource reports produced by the U.S. Bureau of Mines and the U.S. Geological Survey for the U.S. Bureau of Land Management, we discuss the mineral- and energyresource endowment of the 14-millon-acre Roswell Resource Area, New Mexico, managed by the Bureau of Land Management. The...
Continuum-mechanics-based rheological formulation for debris flow
Cheng-lung Chen, Chi-Hai Ling
Shen Hsieh WenSu S.T.Wen Feng, editor(s)
1993, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
This paper aims to assess the validity of the generalized viscoplastic fluid (GVF) model in the light of both the classical relative-viscosity versus concentration relation and the dimensionless stress versus shear-rate squared relations based on kinetic theory, thereby addressing how to evaluate the rheological parameters of the GVF model using...
Debris flows in Grand Canyon National Park, Arizona: magnitude, frequency and effects on the Colorado River
Theodre S. Melis, Robert H. Webb
Shen Hsieh WenSu S.T.Wen Feng, editor(s)
1993, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
Debris flows are recurrent sediment-transport processes in 525 tributaries of the Colorado River in Grand Canyon. Arizona. Initiated by slope failures in bedrock and (or) colluvium during intense rainfall, Grand Canyon debris flows are high-magnitude, short-duration floods. Debris flows in these tributaries transport very large boulders into the river where...
Seasonal changes in cortisol sensitivity and glucocorticoid receptor affinity and number in leukocytes of coho salmon
Alec G. Maule, Carl B. Schreck, Cameron Sharpe
1993, Fish Physiology and Biochemistry (10) 497-506
To determine if there were organ-specific changes in immune responses or immune-endocrine interaction, we monitored in vitro immune response, cortisol sensitivity and number and affinity of glucocorticoid receptors (GR) in leukocytes from freshwater-adapted juvenile coho salmon (Oncorhynchus kisutch) during the physiological changes that prepare them to...
Reproduction and early life history of northern squawfish Ptychocheilus oregonensis in the Columbia River
D.M. Gadomski, A.M. Murphy, C.A. Barfoot
1993, Report, System-wide significance of predation on juvenile salmonids in Columbia and Snake River reservoirs
No abstract available...
Isolates of viral hemorrhagic septicemia virus from North America and Europe can be detected and distinguished by DNA probes
W.N. Batts, C.K. Arakawa, J. Bernard, J. R. Winton
1993, Diseases of Aquatic Organisms (17) 67-71
Biotinylated DNA probes were constructed to hybndize with speclfic sequences within the messenger RNA (mRNA) of the nucleoprotein (N) gene of vlral hemorrhagic septicemia virus (VHSV) reference strains from Europe (07-71) and North Arnenca (Makah) Probes were synthesized that were complementary to (1) a 29-nucleotide sequence near the center of...
Chemical and biotic characteristics of two low-alkalinity lakes in northern Wisconsin: relation to atmospheric deposition
K.E. Webster, J.M. Eilers, J.G. Wiener, G.E. Glass, P.J. Garrison
1993, Technical Report EPA/600/A-94/208
Synoptic surveys of water chemistry in north-central Wisconsin documented the presence of many low alkalinity lakes potentially sensitive to acid deposition. Furthermore, lake hydrologic type proved to be a key factor in determining lake sensitivity: the low alkalinity systems were predominately seepage lakes. To test this hypothesis and identify the...
A new technique for the detection of Renibacterinium salmoninarum
W. B. Schill
1993, Research Information Bulletin 101
No abstract available at this time...
Geological and technological assessment of artificial reef sites, Louisiana outer continental shelf
D.L. Pope, T.F. Moslow, J.B. Wagner
1993, Ocean and Coastal Management (20) 121-145
This paper describes the general procedures used to select sites for obsolete oil and gas platforms as artificial reefs on the Louisiana outer continental shelf (OCS). The methods employed incorporate six basic steps designed to resolve multiple-use conflicts that might otherwise arise with daily industry and commercial fishery operations, and...
Borehole techniques identifying subsurface chimney heights in loose ground-some experiences above underground nuclear explosions
R. D. Carroll, J.W. Lacomb
1993, International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts (30) 575-590
The location of the subsurface top of the chimney formed by the collapse of the cavity resulting from an underground nuclear explosion is examined at five sites at the Nevada Test Site. The chimneys were investigated by drilling, coring, geophysical logging (density, gamma-ray, caliper), and seismic velocity surveys. The identification...
Assessment of biological diversity by DNA analysis techniques
W. B. Schill
1993, Research Information Bulletin 39
No abstract available at this time...
Status of the northern elephant seal population along the U.S. west coast in 1992
J. Barlow, P. Boveng, M.S. Lowry, B.S. Stewart, B. J. Le Boeuf, W.J. Sydeman, R.J. Jameson, S.G. Allen, C.W. Oliver
1993, Administrative Report LJ-93-01
No abstract available at this time...
Life history and ecology of the mud sunfish (Acantharchus pomotis)
G.B. Pardue
1993, Copeia (1993) 533-540
No abstract available....
Digestion of larval American shad by cyprinids
D. V. Rottiers, J. H. Johnson
1993, Ecology of Freshwater Fish (2) 147-151
Cyprinids have pharyngeal teeth for grinding food before swallowing and a continuous gut with no discrete stomach. This digestive tract structure, as well as the feeding behavior traits shown by cyprinids, makes it difficult to identify and measure the amount of food consumed by these fishes. The relations among quantity...
