Fat fractal scaling of drainage networks from a random spatial network model
Michael R. Karlinger, Brent M. Troutman
1992, Water Resources Research (28) 1975-1981
An alternative quantification of the scaling properties of river channel networks is explored using a spatial network model. Whereas scaling descriptions of drainage networks previously have been presented using a fractal analysis primarily of the channel lengths, we illustrate the scaling of the surface area of the channels defining the...
Feeding flights of breeding double-crested cormorants at two Wisconsin colonies
T. W. Custer, C. Bunck
1992, Journal of Field Ornithology (63) 203-211
Unmarked Double-crested Cormorants (Phalacrocorax auritus) (n = 523) were followed by airplane from Cat Island and Spider Island, two nesting colonies in Wisconsin, to their first landing site. Cormorants flew an average of 2.0 km from Cat Island (maximum 40 km) and 2.4 km from Spider Island (maximum12 km)....
Small earthquakes, tectonic forces
Thomas C. Hanks
1992, Science (256) 1430-1432
Earthquake scaling and frequency-of-occurrence relations require that small earthquakes be just as important as larger ones in redistributing the forces that drive relative displacements across active faults of any dimension, including plate boundaries....
Microcrack interaction leading to shear fracture
David A. Lockner, Diane E. Moore, Ze’ev Reches
1992, Conference Paper, 33rd U.S. Symposium on Rock Mechanics
In this paper we draw upon recent laboratory results concerning the nucleation and growth of shear fractures in brittle rock. In homogeneous, crystalline rock such as granite, fault nucleation occurs rapidly and with only subtle changes in precursory microcrack patterns. Once nucleated, the fault grows rapidly, restricting microcrack damage to...
A key phase in the recruitment dynamics of coral reef fishes: post-settlement transition
L. Kaufman, J. L. Ebersole, Jim Beets, Carole McIvor
1992, Environmental Biology of Fishes (34) 109-118
Recent studies of recruitment dynamics in demersal fishes have placed major emphasis on presettlement mortality, and little on events bridging late larval and early juvenile periods. Observations on 68 taxa of Caribbean coral reef fishes before and during settlement revealed the existence of a distinct post-settlement life phase called the...
Ruby Mountains metamorphic core complex: deep crustal exposures exhumed from beneath the Pinon Range?
Keith A. Howard
James Hugh Trexler, Ted Flanigan, Donna Flanigan, M.W. Hansen, Larry Garside, editor(s)
1992, Book chapter, Structural geology and petroleum potential of southwest Elko County, Nevada: the guidebook to the Nevada Petroleum Society annual field trip, June 1992
Global hypocenter data base
Water Resources Division, U.S. Geological Survey
1992, Report
No abstract available....
Evaluating wilderness recreational opportunities: application of an impact matrix
Thomas J. Stohlgren, David J. Parsons
1992, Environmental Management (16) 397-403
An inventory of the severity and spatial distribution of wilderness campsite impacts in Sequoia and Kings Canyon National Parks identified a total of 273 distinct nodes of campsites or “management areas.” A campsite impact matrix was developed to evaluate management areas based on total impacts (correlated to the total area...
Solute transport with multisegment, equilibrium-controlled, classical reactions: Problem solvability and feed forward method's applicability for complex segments of at most binary participants
Jacob Rubin
1992, Water Resources Research (28) 1681-1702
The feed forward (FF) method derives efficient operational equations for simulating transport of reacting solutes. It has been shown to be applicable in the presence of networks with any number of homogeneous and/or heterogeneous, classical reaction segments that consist of three, at most binary participants. Using a sequential (network type...
Reply to Dr. Stoesselfs comment on “Reaction paths and equilibrium end-points in solid-solution aqueous-solution systems”
Pierre D. Glynn, Eric J. Reardon, Niel Plummer, Eurybiades Busenberg
1992, Geochimica et Cosmochimica Acta (56) 2559-2572
In reply to the Critical Comment of R. K. Stoessell (this issue), limiting activity coefficients of bromide in halite (γNaBr) have been calculated by least-squares fitting of Simons et al.'s (1952) bromide distribution coefficient data for the Na(Cl,Br)-NaOH-H2O system at 35°C. Regular and subregular solidsolution model fits give γNaBr...
Fate of alkylbenzenesulfonates and dialkyltetralinsulfonates in sewage contaminated ground water
Jennifer A. Field, Larry B. Barber, E. Michael Thurman, Billy L. Moore, David L. Lawrence, David A. Peake
1992, Environmental Science & Technology (26) 1140-1148
No abstract available....
Associations between benthic flora and diel changes in dissolved arsenic, phosphorus, and related physico-chemical parameters
James S. Kuwabara
1992, Freshwater Science (11) 218-222
Diel relationships between physical and chemical parameters and biomass were examined along a 57-km reach of Whitewood Creek, South Dakota, between 29 August and 2 September 1988. A time lag of ∼3-6 h for fluctuations in soluble reactive phosphorus (SRP) concentrations (ranging from 0.1 to 0.5 μM at the downstream...
A solute flux approach to transport in heterogeneous formations: 2. Uncertainty analysis
Allen M. Shapiro, V.D. Cvetkovic
1992, Water Resources Research (28) 1377-1388
Uncertainty in the mass flux for advection dominated solute movement in heterogeneous porous media is investigated using the Lagrangian framework developed in paper 1 by Dagan et al. (this issue). Expressions for the covariance of the mass flux and cumulative mass flux are derived as functions of the injection volume...
A solute flux approach to transport in heterogeneous formations: 1. The general framework
V.D. Cvetkovic, Allen M. Shapiro
1992, Water Resources Research (28) 1369-1376
It is common to represent solute tranport in heterogeneous formations in terms of the resident concentration C (x, t), regarded as a random space function. The present study investigates the alternative representation by q , the solute mass flux at a point of a control plane normal to the mean flow. This representation is...
Geology and saline resources of Danby Playa, southeastern California
J.P. Calzia
1992, Book chapter, Old routes to the Colorado
No abstract available ...
Three's a crowd in California
Andrew J. Michael
1992, Nature (357) 111-112
No abstract available....
Consumption of atmospheric methane by desert soils
Robert G. Striegl, T.A. McConnaughey, D.C. Thorstenson, E.P. Weeks, J.C. Woodward
1992, Nature (357) 145-147
Atmospheric concentrations of methane, a greenhouse gas, are increasing at a rate of about 1% yr-1 (refs 1–4). Oxidation by methylotrophic bacteria in soil is the largest terrestrial sink for atmospheric CH4, and is estimated to consume about 30 x 1012 g CH4 yr-1 (refs 4–6). Spatial and temporal variability in the rate of...
Preface
John R. Dyni
1992, Fuel (71) 1347-1348
No abstract available....
Hydrological, geomorphological, and chemical effects of Hurricane Andrew on coastal marshes of Louisiana
Larry L. Jackson, A.L. Foote, Laurie S. Balistrieri
1992, Journal of Coastal Research 306-323
Hydrological conditions are reported for the hurricane-induced storm surge at marsh sites in Terrebonne and Barataria Basins. There was a 6 hour or greater delay in the arrival of the storm surge at interior marsh sites compared to coastal locations. A water surge of about 1.5 m with a salinity...
Gas hydrate reservoir characteristics and economics
R.C. Burruss, T. S. Collett
1992, Report
No abstract available....
Chlamydial-caused infectious keratoconjunctivitis in bighorn sheep of Yellowstone National Park
Mary Meagher, William J. Quinn, Larry Stackhouse
1992, Journal of Wildlife Diseases (28) 171-176
An epizootic of infectious keratoconjuctivitis occurred in bighorn sheep (Ovis canadensis) in Yellowstone National Park during the winter of 1981-82. The causative organism was identified as Chlamydia sp. Mortality related to the epizootic was approximately 60% of an estimated 500 bighorn sheep in the northern range population....
Structure and fabric of metamorphic terrains in the northeastern Great Basin; implications for Mesozoic crustal short ening and extension
P.A. Camilleri, D. M. Miller, A.W. Snoke, M.L. Wells
1992, Book chapter, Field guide to geologic excursions in Utah and adjacent areas of Nevada, Idaho, and Wyoming
No abstract available...
Use of a raster-structured GIS in fisheries research activities on the Columbia River
M.J. Parsley
F. D’Erchia, editor(s)
1992, Conference Paper, Proceedings of the third national U.S. Fish and Wildlife Service geographic information systems workshop
No abstract available...
Miocene monzonitic intrusions and associated megabreccias of the "Iron Axis" region, southwestern Utah
H. R. Blank Jr., P. D. Rowley, D.B. Hacker
J.R. Wilson, editor(s)
1992, Book chapter, Field guide to geologic excursions in Utah and adjacent areas of Nevada, Idaho, and Wyoming
No abstract available ...
Seismicity and geometry of a 110‐km‐long blind thrust fault 1. The 1985 Kettleman Hills, California, earthquake
E. Ekstrand, Ross Stein, J. P. Eaton, D. Eberhart-Phillips
1992, Journal of Geophysical Research B: Solid Earth (97) 4843-4864
The August 4, 1985, Kettleman Hills earthquake was the third in a sequence of moderate shocks to occur beneath the northern half of a 110‐km‐long fold chain bounding the eastern California Coast Ranges. The 1982 MW =5.4 New Idria, 1983 MW=6.5 Coalinga, and 1985 MW=6.1 Kettleman Hills events define a southward...
