Numerical simulation of tidal dispersion around a coastal headland
R. P. Signell, W. Rockwell Geyer
Ralph T. Cheng, editor(s)
1990, Book chapter, Residual Currents and Long-Term Transport
Tidal flows around headlands can exhibit strong spatial gradients in the Eulerian currents, resulting in complex Lagrangian trajectories and dispersion of the vertically integrated flow. This typically occurs when the horizontal length scale of the headland is comparable to or smaller than the tidal excursion. The effects of these headlands...
Groundwater processes in the submarine environment: Chapter 12
James M. Robb
1990, Book chapter, Groundwater Geomorphology: The Role of Subsurface Water in Earth-Surface Processes and Landforms
No abstract available....
Methods of measurement of exploratory well impacts, offshore Florida
Phillip A. Dustan, Jack L. Kindinger, B. H. Lidz, J.H. Hudson
1990, Conference Paper, Proceedings of the American Academy of Underwater Sciences Tenth Annual Scientific Diving Symposium
Six offshore oil well tests were drilled off Key West in the late 1950s and early 1960s. Two wells were drilled on coral bottom, two on carbonate sand, and two on mixed turtle grass and gorgonian/sponge hardbottom. After locating the sites with a proton magnetometer; several underwater assessment methods were...
Keweenaw hot spot: Geophysical evidence for a 1.1 Ga mantle plume beneath the Midcontinent Rift System
D. R. Hutchinson, R.S. White, W.F. Cannon, K. J. Schulz
1990, Journal of Geophysical Research B: Solid Earth (95) 10869-10884
The Proterozoic Midcontinent Rift System of North America is remarkably similar to Phanerozoic rifted continental margins and flood basalt provinces. Like the younger analogues, the volcanism within this older rift can be explained by decompression melting and rapid extrusion of igneous material during lithospheric extension above a broad,...
Paleogeography and Paleo-oceanography of the Miocene of the southeastern United States
P. Popenoe
1990, Book chapter, Phosphate deposits of the World: Neogene to Modern Phosphorites
No abstract available....
How Cape Cod, Martha's Vineyard, and Nantucket were formed
R. N. Oldale
1990, Book chapter, A Guide to Nature on Cape Cod and the Islands
No abstract available....
Offshore and onshore sediment resource delineation and usage for coastal erosion control in Louisiana: The Isles Dernieres and Plaquemines barrier systems
S. Penland, J. Mossa, R.A. McBride, K. Ramsey, J.R. Suter, C.G. Groat, S.J. Williamson
M.C. Hunt, S. Doenges, editor(s)
1990, Conference Paper, Second Symposium on Studies Related to Continental Margins: A summary of year-three and year-four activities
No abstract available....
The origin of large local uplift in extensional regions
G. King, M. Ellis
1990, Nature (348) 689-693
Large localized uplift is commonly observed in continental regions undergoing extension. These observations can be modelled by planar, high-angle normal faulting of an elastic upper crust overlying an inviscid lower crust. Isostasy provides the necessary driving force. The model quantifies the role of flexural rigidity, density variations in the crust,...
Geodetic estimate of coseismic slip during the 1989 Loma Prieta, California, Earthquake
Michael Lisowski, W.H. Prescott, James C. Savage, M. J. Johnson
1990, Geophysical Research Letters (17) 1437-1440
Offsets in the relative positions of geodetic stations resulting from the Loma Prieta earthquake can be explained with a dislocation model that includes buried oblique slip on a rupture surface extending 37 km along the strike of the San Andreas fault, dipping 70° to the SW, and extending from a...
A possible geodetic anomaly observed prior to the Loma Prieta, California, Earthquake
Michael Lisowski, W.H. Prescott, James C. Savage, Jerry L. Svarc
1990, Geophysical Research Letters (17) 1211-1214
Monthly measurements since mid‐1981 of distance from a geodetic station located 11 km from the epicenter of the Loma Prieta earthquake (Ms = 7.1; October 17, 1989) to three stations 30 to 40 km distant provides an unusually complete record of deformation in the epicentral region in the years prior to...
An apparent shear zone trending north‐northwest across the Mojave Desert into Owens Valley, eastern California
James C. Savage, Michael Lisowski, W.H. Prescott
1990, Geophysical Research Letters (17) 2113-2116
Strain rates measured at four geodetic networks in eastern California situated between northern Owens Valley and the Transverse Ranges along a small circle drawn about the Pacific‐North America pole of rotation are remarkably consistent. Each exhibits 0.14 μrad/yr simple right‐lateral engineering‐shear‐strain accumulation across the local vertical plane tangent to the...
Identification of isopropylbiphenyl, alkyl diphenylmethanes, diisopropylnaphthalene, linear alkyl benzenes and other polychlorinated biphenyl replacement compounds in effluents, sediments and fish in the Fox River System, Wisconsin
Paul H. Peterman, Joseph J. Delfino
1990, Biological Mass Spectrometry (19) 755-770
Five polychlorinated biphenyl replacement dye solvents and a diluent present in carbonless copy paper were identified by gas chromatography/mass spectrometry in the following matrices: effluents from a de-inking–recycling paper mill and a municipal wastewater treatment plant receiving wastewaters from a carbonless copy paper manufacturing plant; sediments; and fish collected near...
Development of survival skills in captive-raised Siberian polecats (Mustela eversmanni) I: locating prey
Brian Miller, Dean Biggins, Chris Wemmer, Roger Powell, Lou Hanebury, Deborah Horn, Astrid Vargas
1990, Journal of Ethology (8) 89-94
Captive-raised mustelids appear to have a rudimentary capacity to kill prey, but the skills necessary for locating prey may be eroded during captivity. We tested the maturational component of prey-searching behavior with captive-raised Siberian polecats (Mustela eversmanni) by subjecting polecats to a simulated prairie dog colony of 6 burrows within...
Reference manual for generation and analysis of Habitat Time Series: version II
Robert T. Milhous, John M. Bartholow, Marlys A. Updike, Alan R. Moos
1990, Report, Instream Flow Information Paper 27
The selection of an instream flow requirement for water resource management often requires the review of how the physical habitat changes through time. This review is referred to as 'Time Series Analysis." The Tune Series Library (fSLIB) is a group of programs to enter, transform, analyze, and display time series data...
Chemical weathering in the Loch Vale Watershed, Rocky Mountain National Park, Colorado
M. Alisa Mast, James I. Drever, Jill Baron
1990, Water Resources Research (26) 2971-2978
Mineralogic, hydrologic, and geochemical data were used to determine the source of solutes to surface waters draining the Loch Vale Watershed (LVWS), an alpine-subalpine drainage located in the Front Range of Colorado. The flux of dissolved solids from LVWS is primarily controlled by interactions between snowmelt and materials derived from...
Negotiation techniques to resolve western water disputes
Berton L. Lamb, Jonathan G. Taylor
1990, Journal of the American Water Resources Association (26) 967-975
There is a growing literature on the resolution of natural resources conflicts. Much of it is practical, focusing on guidelines for hands-on negotiation. This literature can be a guide in water conflicts. This is especially true for negotiations over new environmental values such as instream flow....
Relationships between live tree diameter and cavity abundance in a Missouri oak-hickory forest
Arthur W. Allen, Janelle G. Corn
1990, Northern Journal of Applied Forestry (7) 179-183
We quantified relationships between mean dbh of live, dominant and codominant trees, and cavity abundance in an oak-hickory forest in southeast Missouri. Inspection of 3,981 trees >12.7 cm dbh in 107 0.1-ha plots indicated that cavities occurred in 19.9% of all trees. White oak, black oak, scarlet oak, and hickories...
Comparative toxicity of inorganic contaminants released by placer mining to early life stages of salmonids
Kevin J. Buhl, Steven J. Hamilton
1990, Ecotoxicology and Environmental Safety (20) 325-342
The acute toxicities of four trace inorganics associated with placer mining were determined, individually and in environmentally relevant mixtures, to early life stages of Arctic grayling (Thymallus arcticus) from Alaska and Montana, coho salmon (Oncorhynchus kitsutch) from Alaska and Washington, and rainbow trout (Oncorhynchus mykiss) from Montana. The descending rank...
Discussion of “Gas‐Transfer Measurements Using Headspace Analysis of Propane” by John R. Thene and John S. Gulliver (November/December, 1990, Vol. 116, No. 6)
Ronald E. Rathbun
1990, Journal of Environmental Engineering (118) 454-456
No abstract available....
The chemistry of iron, aluminum, and dissolved organic material in three acidic, metal-enriched, mountain streams, as controlled by watershed and in-stream processes
Diane M. McKnight, Kenneth E. Bencala
1990, Water Resources Research (26) 3087-3100
Several studies were conducted in three acidic, metal-enriched, mountain streams, and the results are discussed together in this paper to provide a synthesis of watershed and in-stream processes controlling Fe, Al, and DOC (dissolved organic carbon) concentrations. One of the streams, the Snake River, is naturally acidic; the other two,...
Preliminary delineation of contaminated water-bearing fractures intersected by open-hole bedrock wells
John H. Williams, Randall W. Conger
1990, Groundwater Monitoring & Remediation (10) 118-126
Contaminated water‐bearing fractures intersected by open‐hole bedrock wells were preliminarily delineated through a combination of geophysical logging, vertical‐flow measurements, and downhole water sampling as part of remedial site investigations in southeastern New York. The wells investigated range from 100 to 450 feet in depth, have only shallow surface casing, and...
Surface displacements in the 1906 San Francisco and 1989 Loma Prieta earthquakes
Paul Segall, Michael Lisowski
1990, Science (250) 1241-1244
The horizontal displacements accompanying the 1906 San Francisco earthquake and the 1989 Loma Prieta earthquake are computed from geodetic survey measurements. The 1906 earthquake displacement field is entirely consistent with right-lateral strike slip on the San Andreas fault. In contrast, the 1989 Loma Prieta earthquake exhibited subequal components of strike...
The late Cenozoic evolution of the Tuolumne River, central Sierra Nevada, California
N.K. Huber
1990, GSA Bulletin (102) 102-115
Erosional remnants of volcanic rock deposited in a lO-m.y.-old channel of the Tuolumne River permit its partial reconstruction. Projection of the reconstructed channel west to the Central Valley and east to the range crest, together with several assumptions about the position of the hinge line and changes in channel gradient,...
Use of wildlife models for habitat management
D.F. Stauffer, A.H. Farmer, B.S. Cade
1990, Book, Proceedings : resource technology 90, Second International Symposium on Advanced Technology in Natural Resource Management
No abstract available....
The 40Ar/39Ar thermochronology of the eastern Mojave Desert, California, and adjacent western Arizona with implications for the evolution of metamorphic core complexes
D.A. Foster, T.M. Harrison, C. F. Miller, Keith A. Howard
1990, Journal of Geophysical Research B: Solid Earth (95) 20005-20024
Mesozoic thickening and Cenozoic extension resulted in the juxtaposition of upper and middle crustal rocks in the eastern Mojave Desert, southeastern California and western Arizona. The application of 40Ar/39Ar thermochronology to rocks in this region provides information about the timing and nature of thrusting, plutonism, metamorphism, denudation, and detachment faulting. The 40Ar/39Ar...
