Tsunamis – Scourge of the Pacific
Patricia Lockridge
1985, Earthquake Information Bulletin (USGS) (17) 211-217
Although tsunamis occur most often in the Pacific Ocean, they can be generated by major earthquakes in other areas. The most frequent cause of tsunamis…is crustal movement along a fault: a large mass of rock drops or rises and displaces the column of water above it. This column of water...
Earthquake potential of the Wasatch Fault in Utah
1985, Earthquake Information Bulletin (USGS) (17) 218-225
The majority of Utah’s population lives along the Wasatch fault, an active intraplate normal fault that extends for approximately 230 miles along the western front of the Wasatch Range. Investigations of earthquake recurrence on the Wasatch fault have revealed that segments of the fault have been the source of repeated...
Implications of silicic vent patterns for the presence of large crustal magma chambers
Charles R. Bacon
1985, Journal of Geophysical Research B: Solid Earth (90) 11243-11252
On the basis of the distribution of silicic vents, many volcanic fields can be grouped with (1) igneous systems that may be small and whose vent locations are controlled by regional tectonics, (2) those that include sizable crustal magma bodies which erupt at sites determined by their anomalous local stress...
Assessment of the instantaneous unit hydrograph derived from the theory of topologically random networks
M.R. Karlinger, B.M. Troutman
1985, Water Resources Research (21) 1693-1702
An instantaneous unit hydrograph (iuh) based on the theory of topologically random networks (topological iuh) is evaluated in terms of sets of basin characteristics and hydraulic parameters. Hydrographs were computed using two linear routing methods for each of two drainage basins in the southeastern United States and are the basis...
Field determination of the three-dimensional hydraulic conductivity tensor of anisotropic media: 1. Theory
Paul A. Hsieh, Shlomo P. Neuman
1985, Water Resources Research (21) 1655-1665
A field method is proposed for determining the three-dimensional hydraulic conductivity tensor and specific storage of an anisotropic porous or fractured medium. The method, known as cross-hole testing (to distinguish it from conventional single-hole packer tests), consists of injecting fluid into (or withdrawing fluid from) packed-off intervals in a number...
Origin of the Sudbury Complex by meteoritic impact: Neodymium isotopic evidence
B.E. Faggart Jr., A. R. Basu, Mitsunobu Tatsumoto
1985, Science (230) 436-439
Samarium-neodymium isotopic data on whole rocks and minerals of the Sudbury Complex in Canada gave an igneous crystallization age of 1840 ± 21 × 106 years. The initial epsilon neodymium values for 15 whole rocks are similar to those for average upper continental crust, falling on the crustal trend of neodymium...
Presence and effects of the dog louse Trichodectes canis (Mallophaga, Trichodectidae) on wolves and coyotes from Minnesota and Wisconsin
L. David Mech, Richard P. Thiel, S. H. Fritts, W. E. Berg
1985, American Midland Naturalist (114) 404-405
The dog louse was found on 19 wolves (Canis lupus) and six coyotes (C. latrans) from Minnesota and Wisconsin during the July-February, 1973 through 1983, period. No evidence was found that lice had any serious effect on wolf survival....
Interactions among temporary and permanent meiofauna: Observations on the feeding and behavior of selected taxa
Mary C. Watzin
1985, Biological Bulletin (169) 397-416
Meiofauna diets and behavioral patterns are relatively unknown despite the fact that in any system, predatory relationships and behavioral responses may play an important role in determining community structure. Therefore, observations on food preferences, feeding behavior, and encounter interactions of members of a meiofauna assemblage were made in the laboratory...
On the interpretation of satellite-derived gravity and magnetic data for studies of crustal geology and metallogenesis
David A. Hastings
1985, Conference Paper, Geopotential Research Mission (GRM): Proceedings of a conference
Satellite-derived global gravity and magnetic maps have been shown to be useful in large-scale studies of the Earth's crust, despite the relative infancy of such studies. Numerous authors have made spatial associations of gravity or magnetic anomalies with geological provinces. Gravimetric interpretations are often made in terms of isostasy, regional...
Environmental contaminants in eastern Cooper's hawk eggs
Oliver H. Pattee, Mark R. Fuller, T. Earl Kaiser
1985, Journal of Wildlife Management (49) 1040-1044
No abstract available. ...
Detectability of step trends in the rate of atmospheric deposition of sulfate
R.M. Hirsch, E.J. Gilroy
1985, Journal of the American Water Resources Association (21) 773-784
A method is presented to assist policy makers in determining the combination of number of sampling stations and number of years of sampling necessary to state with a given probability that a step reduction in atmospheric deposition rates of a given magnitude has occurred at a pre-specified time. This pre-specified...
Temporal and spatial distribution of manatees in Kings Bay, Crystal River, Florida
Howard I. Kochman, Galen B. Rathbun, James A. Powell
1985, Journal of Wildlife Management (49) 921-924
No abstract available. ...
Periodic autoregressive-moving average (PARMA) modeling with applications to water resources
A. V. Vecchia
1985, Journal of the American Water Resources Association (21) 721-730
Results involving correlation properties and parameter estimation for autoregressive-moving average models with periodic parameters are presented. A multivariate representation of the PARMA model is used to derive parameter space restrictions and difference equations for the periodic autocorrelations. Close approximation to the likelihood function for Gaussian PARMA processes results in efficient...
Petroleum industry drilling in industrialized and developing areas
Emil D. Attanasi
1985, Natural Resources Forum (9) 147-153
International drilling statistics show significant differences in target depths as well as the mix between onshore and offshore wells. Unlike the USA, where most of the drilling has been concentrated in depths to 5000 f (shallow depths), the preponderance of wildcat wells drilled in South America and Africa reach much...
Episodic rifting of phanerozoic rocks in the Victoria Land basin, Western Ross Sea, Antarctica
Alan K. Cooper, F.J. Davey
1985, Science (229) 1085-1087
Multichannel seismic-reflection data show that the Victoria Land basin, unlike other sedimentary basins in the Ross Sea, includes a rift-depression 15 to 25 kilometers wide that parallels the Transantarctic Mountains and contains up to 12 kilometers of possible Paleozoic to Holocene age sedimentary rocks. An unconformity separates the previously identified...
Seismic-reflection signature of cretaceous continental breakup on the Wilkes Land margin, Antarctica
Stephen Eittreim, Monty A. Hampton, Jonathan R. Childs
1985, Science (229) 1082-1084
The passive (rifted) continental margin of Wilkes Land, Antarctica, is characterized on seismic reflection records by (i) in the south, a block-faulted sequence of highly stratified continental beds overlain by two distinct unconformities; (ii) a transitional, greatly thinned continental crust overlain by material interpreted to be flood basalt; and (iii)...
Contaminant residues in fish and sediments from lakes in the Atchafalaya River Basin (Louisiana)
Parley V. Winger, J. K. Andreasen
1985, Archives of Environmental Contamination and Toxicology (14) 579-586
Conversion of bottomland hardwood forests ℴ agricultural land has reduced habitat and water quality in many lakes in the floodplain of the lower Mississippi River. The objectives of this study were to ascertain current contaminant residue concentrations in fish and sediment from lakes in the Atchafalaya River Basin and to...
Estuary-wide mitigation options for port development in Tampa Bar, Florida
Steve Dial, Millicent L. Quammen, Don Deis, James B. Johnston
1985, Conference Paper, Coastal zone '85 : Proceedings of the fourth symposium on coastal and ocean management
No abstract available....
Monitoring the earth: too many players?
Gene A. Thorley
1985, Pecora 10 Symposium 457-462
A number of organizations are currently engaged in, or proposing to embark on, worldwide measurement/monitoring programs. Program objectives vary in type and complexity, including a form of technical library (the Global Environment Monitoring System of the United Nations Environment Program), and an ambitious experiment to validate algorithms to derive...
The use of low-resolution satellite image data for rangeland monitoring
Thomas M. Holm, William C. Draeger, Patrick T. Williams, Robert F. Buzzard
1985, Pecora 10 Symposium 398-398
The U.S. Geological Survey's Earth Resources Observation Systems (EROS) Data Center and the Bureau of Indian Affairs (BIA) jointly evaluated the used of Advanced Very High Resolution Radiometer (AVHRR) images for the calculate of normalized difference data as a green biomass indicator in an arid rangeland environment. The normalized...
Landsat-faciliated vegetation classification of the Kenai National Wildlife Refuge and adjacent areas, Alaska
Stephen S. Talbot, M.B. Shasby, T.N. Bailey
1985, Conference Paper, Pecora 10 Symposium
A Landsat-based vegetation map was prepared for Kenai National Wildlife Refuge and adjacent lands, 2 million and 2.5 million acres respectively. The refuge lies within the middle boreal sub zone of south central Alaska. Seven major classes and sixteen subclasses were recognized: forest (closed needleleaf, needleleaf woodland, mixed);...
Comparison of fire fuel maps produced using MSS and AVHRR data
Wayne A. Miller, David C. Johnston
1985, Conference Paper, Pecora 10 Symposium
The fuel information, in support of the Bureau of Land Management's (BLM) national fire program, has been obtained through the manila interpretation of Landsat multi-spectral scanner images and digital image analysis of Advanced Very High Resolution Radiometer (AVHRR) data. The BLM, in cooperation with the Earth Resources Observation Systems...
Change detection in rangeland environments using Landsat MSS data: A quantitative approach
David C. Johnston, Robert H. Haas
1985, Conference Paper, Pecora 10 Symposium
A range forage utilization study on the Crow Creek Indian Reservation in central South Dakota provided the opportunity to use Landsat multispectral scanner (MSS) data for examining range condition trends. A procedure was developed to compare change in spectral reflectance over time for polygon areas, defined by resource type...
Updating range surveys using a geographic information system
Jeffery C. Eidenshink, David C. Sjaastad
1985, Conference Paper, Pecora 10 Symposium
A spatial database was developed for the Fort Berthold Indian Reservation in North Dakota to demonstrate the use of a geographic information system for natural resource management. A key component of the digital database was a detailed soil survey. Range site boundaries were derived by aggregating soil mapping...
Interim program for land cover mapping in Alaska utilizing Landsat digital data
Mark Shasby, David Carneggie, Leonard Gaydos, Katherine Fitzpatrick-Lins, Donald Lauer, Vincent Ambrosia, Susan Benjamin
1985, Conference Paper, Pecora 10 Symposium
The enactment of the Alaska National Interest Lands Conservation Act (ANILCA) in 1980 imposed mandates on all major land management agencies in Alaska to prepare comprehensive resource and management plans to assess wildlife habitat, oil and gas exploration and development, wild and scenic river, land disposals, timber production, and archaeological...
