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Page 4534, results 113326 - 113350

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Publication Extents

Not all publications have extents, not all extents are completely accurate
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...
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)...
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...
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...
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...
New horizons in remote sensing for forest and range resource management
D. T. Lauer
1985, Conference Paper, Pecora 10 Symposium
Forest and range resource scientists were among the first to recognize the potential of aircraft and satellite remote sensing for management of timber, forage, water, and wildlife resource. Today, data from a variety of sensor systems are being put to practical use for inventorying, monitoring, and assessing forest and...
The effects of catastrophic ecosystem disturbance: the residual mammals at Mount St. Helens
Douglas C. Andersen, James A. MacMahon
1985, Journal of Mammalogy (66) 581-589
Individuals that survive the direct effects of community- or ecosystem-level disturbances, i.e., "residuals", can have major roles in determining the rate and pathway of subsequent secondary succession. The explosive eruption of the Mount St. Helens volcano on 19 May 1980 resulted in severe damage to a cast array of...
Quaternary tectonic setting of the 1983 Borah Peak earthquake, central Idaho
William E. Scott, Kenneth L. Pierce, M. H. Hait Jr.
1985, Bulletin of the Seismological Society of America (75) 1053-1066
The 1983 Borah Peak earthquake was accompanied by extensive surface faulting along a part of the Lost River fault that has abundant evidence of latest Quaternary (last 15,000 yr) offset. This fault and two similar range-front normal faults along the Lemhi Range and Beaverhead Mountains lie in an area of...
Dynamics of a black-capped chickadee population, 1958-1983
G. Loery, James D. Nichols
1985, Ecology (66) 1195-1203
The dynamics of a wintering population of Black—capped Chickadees (Parus atricapillus) were studied from 1958—1983 using capture—recapture methods. The Jolly—Seber model was used to obtain annual estimates of population size, survival rate, and recruitment. The average estimated population size over this period was °160 birds. The average estimated number of...
Ground-water data for the alluvial, buried channel, Basel Pleistocene and Dakota aquifer in west-central Iowa
Pamela K. B. Hunt, Donna L. Runkle
1985, Open-File Report 84-819
The purpose of this investigation was to determine the availability, quantity and quality of groundwater from three principal aquifers in West-Central Iowa, the alluvial, buried channel, Basal Pleistocene and the Dakota aquifers. Specific objectives were to: (1) determine the location, extent and the nature of these aquifers; (2) evaluate the...
Biogeochemistry of aquatic humic substances in Thoreau's Bog, Concord, Massachusetts
Diane M. McKnight, E. Michael Thurman, Robert L. Wershaw, Herold Hemond
1985, Ecology (66)-1339
Thoreau's Bog is an ombrotrophic floating—mat Sphagnum bog developed in a glacial kettlehole and surrounded by a red maple swamp. Concentrations of dissolved organic carbon in the porewater of the bog average 36 mg/L and are greatest near the surface, especially during late summer. This distribution suggest that the upper...
Rate and depth of pedogenic-carbonate accumulation in soils: Formation and testing of a compartment model.
Leslie D. McFadden, John Tinsley
1985, GSA Special Papers (203) 23-41
The rate and depth of pedogenic carbonate accumulation in soils formed in Quaternary alluvium may be viewed as a theoretical problem that involves the mutual interaction of several independent and dependent soil-forming variables. We propose a model for carbonate accumulation in which the soil column is defined by a vertical...
Environmental trends among Neogene benthic foraminifers at Deep Sea Drilling Project Site 548, Irish continental margin
Claude (Wylie) Poag, Doris Low
1985, Initial reports of the Deep Sea Drilling Project (80) 489-503
An analysis of diversity and abundance trends among all benthic foraminiferal genera and species, and particularly among species of Bolivina, was carried out for 59 samples of Neogene sediment from DSDP-IPOD Site 548, Goban Spur. By correlating these census data with lithological, geophysical, geochemical, and other faunal and floral measurements...
Effects of fluoride on screech owl reproduction: Teratological evaluation, growth, and blood chemistry in hatchlings
D. J. Hoffman, O. H. Pattee, Stanley N. Wiemeyer
1985, Toxicology Letters (26) 19-24
The effects on reproduction in screech owls (Otus asio) of chronic dietary sodium fluoride administration at 0, 40, and 200 ppm were examined. Fluoride at 40 ppm resulted in a significantly smaller egg volume, while 200 ppm also resulted in lower egg weights and lengths. Day-one hatchlings in the 200...