Evaluation of the depth-integration method of measuring water discharge in large rivers
J. A. Moody, B.M. Troutman
1992, Journal of Hydrology (135) 201-236
The depth-integration method of measuring water discharge makes a continuous measurement of the water velocity from the water surface to the bottom at 20 to 40 locations or verticals across a river. It is especially practical for large rivers where river traffic makes it impractical to use boats...
Small scale heterogeneity of Phanerozoic lower crust: evidence from isotopic and geochemical systematics of mid-Cretaceous granulite gneisses, San Gabriel Mountains, southern California
A. P. Barth, J. L. Wooden, D. J. May
1992, Contributions to Mineralogy and Petrology (109) 394-407
An elongate belt of mid-Cretaceous, compositionally banded gneisses and granulites is exposed in Cucamonga terrane, in the southeastern foothills of the San Gabriel Mountains of southern California. Banded gneisses include mafic granulites of two geochemical types: type 1 rocks are similar to high Al arc basalts and andesites but have...
Study of salt transport processes in Delaware Bay
Roy Walters
1992, Conference Paper
The study described here is a subset of a broader climate-related study, and is focused primarily on salinity intrusion into Delaware Bay and River. Given changes in freshwater discharge into the Delaware River as determined from the larger study, and given probable sea level rise estimates, the purpose here is...
The Etowah: a river under siege
N.M. Burkhead, J.D. Williams, B. J. Freeman
1992, Georgia Wildlife (2) 10-17
Abstract not supplied at this time...
The status of loggerhead, Caretta caretta; Kemp's ridley, Lepidochelys kempi; and green, Chelonia mydas, sea turtles in U.S. waters: a reconsideration
C.K. Dodd Jr., R.A. Byles
1992, Marine Fisheries Review (53) 30-31
Abstract not supplied at this time...
Habitat use by a headwater stream fish community in North-central Pennsylvania
J. H. Johnson, D. S. Dropkin, P.G. Shaffer
1992, Rivers (3) 69-79
Rivulus tecminae, a new killifish from Amazonas Territory, Venezuela (Rivulidae, Cyprinodontiformes)
J.E. Thomerson, L.G. Nico, D.C. Taphorn
1992, Ichthyological Exploration of Freshwaters (2) 289-296
Abstract not supplied at this time...
The non-marine herpetofauna of Egmont Key, Hillsborough County, Florida
R. Franz, C.K. Dodd Jr., A.M. Bard
1992, Florida Scientist (55) 179-183
Abstract not supplied at this time...
Fossil sea turtles from the early Pliocene Bone Valley Formation, central Florida
C.K. Dodd Jr., G.S. Morgan
1992, Journal of Herpetology (26) 1-8
No abstract available....
Growth models and food conversion of cultured juvenile red abalone (Haliotis rufescens)
J.L. Greenier, John Y. Takekawa
S.A. Shepherd, M. J. Tegner, S. A. Guzman del Proo, editor(s)
1992, Book chapter, Abalone of the world
No abstract available at this time...
The boulder darter: a conservation challenge
N.M. Burkhead, J.D. Williams
1992, U.S. Fish and Wildlife Service Endangered Species Technical Bulletin (17) 4-6
Abstract not supplied at this time...
Northern Prairie Wildlife Research Center: a focus on waterfowl research
R.E. Kirby, D.S. Gilmer
1992, California Waterfowl (18) 41-43
No abstract available at this time...
The use of coverboards in estimating patterns of reptile and amphibian biodiversity
B.W. Grant, A.D. Tucker, J.E. Lovich, A.M. Mills, P.M. Dixon, J.W. Gibbons
D.L. McCullough, R.H. Barrett, editor(s)
1992, Book chapter, Wildlife 2001: Populations
No abstract available at this time...
Accumulation of mercury by aufwuchs in Wisconsin seepage lakes: Implications for monitoring
W. Gregory Cope, Ronald G. Rada
1992, Archives of Environmental Contamination and Toxicology (23) 172-178
We examined temporal variation in the total Hg content of aufwuchs collected from artificial substrates in 11 seepage lakes in north-central Wisconsin and its relation to the Hg content of resident yellow perch Perca flavescens from the lakes. Dry weight concentrations of Hg in aufwuchs varied temporally, as follows: summer/fall 1985 > summer 1985 > spring/summer...
Leporacanthicus triactis, a new loricariid fish from upper Orinoco River tributaries in Venezuela and Colombia (Pisces, Siluriformes, Loricariidae)
I.J. Isbrucker, H. Nijssen, L.G. Nico
1992, Die Aquarien- und Terrarienzeitschrift (DATZ) (46) 30-34
Abstract not supplied at this time...
U.S. Geological Survey Library classification system
R. Scott Sasscer
1992, Bulletin 2010_1992
The U.S. Geological Survey library classification system has been designed for an earth science library. It is a tool for assigning classification numbers to earth science and allied pure science library materials in order to collect these materials into related subject groups on the library shelves and arrange them alphabetically...
Molt frequency and size class distribution in the California spiny lobster (Panulirus interruptus), at San Nicolas Island, California
James L. Bodkin, L.B. Browne
1992, California Fish and Game (78) 136-144
The geology of radon
James K. Otton
1992, Report
Sea otter population surveys: Why and How
R.J. Jameson
1992, The Otter Raft (47) 4-5
An unusual occurrence of arsenic-bearing pyrite in the Upper Freeport coal bed, West-Central Pennsylvania
L.F. Ruppert, J.A. Minkin, J. J. McGee, C. B. Cecil
1992, Energy & Fuels (6) 120-125
Scanning electron microscopy and electron microprobe analysis were used to identify a rare type of As-bearing pyrite in selected specific gravity separates from the Pennsylvanian age Upper Freeport coal bed, west-central Pennsylvania. Arsenic was detected mainly in cell-wall replacement pyrite where concentrations ranged from nondetectable to 1.9 wt %. Although...
Large lake basins of the southern High Plains: Ground-water control of their origin?
W.W. Wood, W. E. Sanford, C.C. Reeves Jr.
1992, Geology (20) 535-538
The origin of the ∼40-50 topographically large lake basins on the southern High Plains of Texas and New Mexico has been an enigma. Previous workers have considered deflation or evaporite dissolution at depth and subsequent collapse as the most probable mechanisms. However, the eolian hypotheses have been unable to provide...
The effect of rock type, grain size, sorting, permeability, and moisture on measurements of radon in soil gas: A comparison of two measurement techniques
L.C.S. Gundersen
1992, Conference Paper, Journal of Radioanalytical and Nuclear Chemistry
Soil surveys of radon conducted in the Coastal Plain of New Jersey, Alabama and Texas indicate that soil composition and grain size exert the strongest control on the concentration of radon measured. Soil-gas radon was measured in-situ using two techniques; one developed by G. Michael REIMER of the U.S. Geological...
3H and 14C as tracers of ground-water recharge
John A. Izbicki, Robert L. Michel, Peter Martin
1992, Conference Paper, Irrigation and Drainage: Saving a Threatened Resource - In Search of Solutions, Proceedings of the Irrigation and Drainage Sessions at Water Forum '92
Surface spreading of water from the Santa Clara River is used to recharge aquifers underlying the Oxnard Plain. These aquifers are divided into an upper system about 400 feet thick, and a lower system more than 1,000 feet thick. In previous studies, it has been reported that surface spreading recharged...
U-Pb dating of uranium deposits in collapse breccia pipes of the Grand Canyon region
K.R. Ludwig, K. R. Simmons
1992, Economic Geology (87) 1747-1765
Two major periods of uranium mineralization are indicated by U-Pb isotope dating of uranium ores from collapse breeeia pipes in the Grand Canyon region, northern Arizona. The Hack 2 and 3, Kanab North, and EZ 1 and 2 orebodies apparently formed in the interval of 200 + or - 20...
The oldest known Rocky Mountain bristlecone pines (Pinus aristata Engelm.)
F.C. Brunstein, D.K. Yamaguchi
1992, Arctic and Alpine Research (24) 253-256
We have found 12 living Rocky Mountain bristlecone pines (Pinus aristata) more than 1600 yr old, including four that are more than 2100 yr old, on Black Mountain, near South Park, and on Almagre Mountain, in the southern Front Range, Colorado. A core from the oldest of these trees has...
