THEMATIC MAPPER: DETAILED RADIOMETRIC AND GEOMETRIC CHARACTERISTICS.
Hugh Kieffer
1983, Conference Paper
The paper is in abstract form. It discusses those radiometric characteristics of the Landsat 4 Thematic Mapper (TM) that can be established without absolute calibration or spectral data. Subscenes of radiometrically raw data (B-data) were examined on an individual detector basis; areas of uniform radiance were used to characterize subtle...
Nonlinear strain buildup and the earthquake cycle on the San Andreas fault
W. Thatcher
1983, Journal of Geophysical Research Solid Earth (88) 5893-5902
Two contrasting models of the earthquake deformation cycle on strike slip faults predict significant temporal declines in shear strain rate near the fault, accompanied by a progressive broadening of the zone of deformation adjacent to it. In the thin lithosphere model, transient deformation results from flow in the asthenosphere due...
USES OF MARKETING TECHNIQUES THE U. S. GEOLOGICAL SURVEY.
Michael P. McDermott
1983, Conference Paper, Technical Papers of the American Congress of Surveying and Mapping
The use of marketing techniques by government agencies to provide more efficient and effective dissemination of their information is a fairly recent development. A recessive economy, and increased scrutiny of operations have become a powerful incentive to maximize revenues and minimize expenses wherever possible as long as the primary mission...
The Chilean nitrate deposits.
G. E. Ericksen
1983, American Scientist (71) 366-374
The nitrate deposits in the arid Atacama desert of northern Chile consist of saline-cemented surficial material, apparently formed in and near a playa lake that formerly covered the area. Many features of their distribution and chemical composition are unique. The author believes the principal sources of the saline constituents were...
SOME NEW PROCESSING TECHNIQUES FOR THE IMPERIAL VALLEY 1979 AFTERSHOCKS.
A. Gerald Brady
Chung Riley M.Lew H.S.Kovacs William D., editor(s)
1983, Conference Paper, National Bureau of Standards, Special Publication
This paper describes some of the features of the latest processing improvements that the U. S. Geological Survey (USGS) is currently applying to strong-motion accelerograms from the national network of permanent stations. At the same time it introduces the application of this processing to the set of Imperial Valley aftershocks...
Geochemistry of the Chattanooga shale, Dekalb County, central Tennessee.
J.S. Leventhal, Paul H. Briggs, J.W. Baker
1983, Southeastern Geology (24) 101-116
This Upper Devonian shale is of interest because of its unusual enrichment in trace elements, especially U; a new chemical analysis for major, minor and trace elements is presented. Stable isotopes of carbon (organic) show delta 13C approx -29per mille and for total sulphur show -21 to -27per mille delta...
A mechanism to explain the generation of earthquake lights
D.A. Lockner, M.J.S. Johnston, J.D. Byerlee
1983, Nature (302) 28-33
Explanations of how earthquake lights might arise have failed to show how large charge densities can be concentrated and sustained in a conductive Earth. A physical model is proposed, based on frictional heating of the fault, that solves this and related problems. ?? 1983 Nature Publishing Group....
The role of digital cartographic data in the geosciences
S.C. Guptill
1983, Computers & Geosciences (9) 23-26
The increasing demand of the Nation's natural resource developers for the manipulation, analysis, and display of large quantities of earth-science data has necessitated the use of computers and the building of geoscience information systems. These systems require, in digital form, the spatial data on map products. The basic cartographic data...
PROPOSED SPECIFICATIONS FOR INERTIAL SURVEYING.
William H. Chapman
1983, Conference Paper, Technical Papers of the American Congress of Surveying and Mapping
The purpose of this paper is to continue the movement toward placing inertial surveying instruments in the toolbox of the geodetic surveyor. A set of specifications is proposed for performing horizontal geodetic surveys with inertial instruments that will meet the Federal Geodetic Control Committee (FGCC) second- and third-order standards. These...
The past is the key to the future
B. R. Doe
1983, Geochimica et Cosmochimica Acta (47) 1341-1354
A new major frontier of geological research, which was initiated in the 1970's, involves predicting future geologic trends or events through study of the present and past, rather than trying to understand the past, often using what one knows about the present. Like most scientific frontiers, this one began from...
Ground-water models for water resource planning
J.E. Moore
1983, GeoJournal (7) 453-458
In the past decade hydrogeologists have emphasized the development of computer-based mathematical models to aid in the understanding of flow, the transport of solutes, transport of heat, and deformation in the ground-water system. These models have been used to provide information and predictions for water managers. Too frequently, ground-water was...
Rehabilitation materials from surface- coal mines in western USA. I. Chemical characteristics of spoil and replaced cover-soil.
R. C. Severson, L. P. Gough
1983, Reclamation and Revegetation Research (2) 83-102
A range of at least one order of magnitude was observed for DTPA-extractable Cd, Cu, Fe, Mn, Ni, Pb and Zn and organic matter content of samples of spoil and cover-soil from eleven western USA surface-coal mines. The observed pH of these samples ranged from 3.9 to 8.9; however, most...
Lake phosphorus loading form septic systems by seasonally perched groundwater
R. J. Gilliom, C.R. Patmont
1983, Journal of the Water Pollution Control Federation (55) 1297-1305
The movement of effluent phosphorus (P) from old septic systems by seasonally perched groundwater was investigated. A previous study indicated a correlation between P loadings and the presence of old homes. Water samples were taken from shallow wells installed 10 to 50 m downgradient from seven septic systems 20 to...
Origins of rainbow smelt in Lake Ontario
Roger A. Bergstedt
1983, Journal of Great Lakes Research (9) 582-583
The first rainbow smelt (Osmerus mordax) to enter Lake Ontario were probably migrants from an anadromous strain introduced into New York's Finger Lakes. Since the upper Great Lakes were originally stocked with a landlocked strain from Green Lake, Maine, subsequent migration to Lake Ontario from Lake Erie makes Lake Ontario...
Consumption and growth of hybrid grass carp fed four vegetation diets and trout chow in circular tanks
J.V. Shireman, R.W. Rottmann, F.J. Aldridge
1983, Journal of Fish Biology (22) 685-693
Grass carp, Ctenopharyngodon idella, and hybrid grass carp (grass carp ♀× bighead carp ♀Aristichthys nobilis), were fed duckweed (Lemna sp.), hydrilla (Hydrilla verticillata), chara (Chara sp.), filamentous algae (Odogonium sp., Spirogyra sp.), and trout chow. Grass carp consumed all plants in greater amounts than hybrids. Grass carp grew best when fed hydrilla and trout chow and...
Effective flow-through vacuum degasser for fish hatcheries
J. T. Fuss
1983, Aquacultural Engineering (2) 301-307
Since the fry of certain species of fish cannot tolerate even slight amounts of supersaturation, their water supplies must be degassed. Gas content can be reduced to subsaturated, sublethal levels by passing it through the vacuum degasser described here. The system includes a low-cost, flow-through unit easily capable of degassing...
Tagging and marking
R. Wydoski, L. Emery
L.A. Nielsen, D.L. Johnson, editor(s)
1983, Book chapter, Fisheries Techniques
No abstract available at this time...
Selective concentration of aromatic bases from water with a resin adsorbent
H. A. Stuber, Jerry A. Leenheer
1983, Analytical Chemistry (55) 111-115
Aromatic bases are concentrated from water on columns of a resin adsorbent and recovered by aqueous-acid elution. The degree of concentration attainable depends on the ratio of the capacity factor (k) of the neutral form of the amine to that of the ionized form. Capacity factors of ionic forms of...
A Pleistocene diatomaceous clay and a pumiceous ash, Yolo County ( California).
R. W. Page, G.L. Bertoldi
1983, California Geology (36) 14-20
Discusses a diatomaceous clay of Pleistocene age, cored from 534-544ft, and a pumiceous ash found at a depth of 453ft in a test hole. Tests on the clay indicate that it is highly susceptible to compaction, and therefore, it could contribute, or perhaps has contributed, to land subsidence in the...
The magnetic field of the earth, 1980 magnetic total intensity
E. B. Fabiano, N.W. Peddie, A.K. Zunde
1983, IMAP 1461
No abstract available....
Chemistry and microbiology of a sewage spill in South San Francisco Bay
J. E. Cloern, R.S. Oremland
1983, Estuaries (6) 399-406
During three weeks of September 1979, the breakdown of a waste treatment plant resulted in the discharge of a large volume (1.5×107m3) of primary-treated sewage into a tributary of South San Francisco Bay, California. Chemical and microbial changes occurred within the tributary as decomposition and nitrification depleted dissolved oxygen. Associated...
Aeromagnetic map of the Kingman-Trona area, California
Water Resources Division, U.S. Geological Survey
1983, Open-File Report 83-663
No abstract available....
Sulphide mineralization and wall-rock alteration in ophiolites and modern oceanic spreading centres
R.A. Koski
1983, Journal of Geochemical Exploration (19) 496-498
No abstract available....
Archiving early seismological records at the California Institute of Technology
J. Goodstein
1983, Earthquake Information Bulletin (USGS) (15) 177-184
Improper use of regression equations in earth sciences
G. P. Williams
1983, Geology (11) 195-197
A regression equation used to estimate a variable is appropriately used only to estimate the dependent variable of that equation; the equation is inappropriately used when solved for an independent variable. Examples given here of this misuse of regression equations are based on...
