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Page 4491, results 112251 - 112275

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Not all publications have extents, not all extents are completely accurate
Multi-model stereo restitution
K.S. Dueholm
1990, Photogrammetric Engineering and Remote Sensing (56) 239-242
Methods are described that permit simultaneous orientation of many small-frame photogrammetric models in an analytical plotter. The multi-model software program enables the operator to move freely between the oriented models during interpretation and mapping. Models change automatically when the measuring mark is moved from one frame to another, moving to...
Geotechnical engineering for ocean waste disposal. An introduction
Homa J. Lee, Kenneth R. Demars, Ronald C. Chaney
Demars Kenneth R.Chaney Ronald C., editor(s)
1990, Conference Paper, ASTM Special Technical Publication
As members of multidisciplinary teams, geotechnical engineers apply quantitative knowledge about the behavior of earth materials toward designing systems for disposing of wastes in the oceans and monitoring waste disposal sites. In dredge material disposal, geotechnical engineers assist in selecting disposal equipment, predict stable characteristics of dredge mounds, design mound...
Woodford shale in the Anadarko basin: Could it be another 'Bakken type' horizontal target?
Timothy C. Hester, James W. Schmoker, Howard L. Sahl
1990, Oil & Gas Journal (88) 73-78
The Woodford shale is one of several organic rich "black" shales of late Devonian and early Mississippian age present in basins of the North American craton. Where thermally mature, these black shales are economically important as hydrocarbon source rocks. The Woodford shale is widely regarded as a major source rock...
The quantitative determination of FeS2 phases in coal by means of 57Fe Mössbauer spectroscopy
B.J. Evans, Hobart M. King, John J. Renton, A. Stiller
1990, Hyperfine Interactions (57) 2187-2193
A knowledge of the concentration of pyrite and marcasite in coals can provide important insight into the genesis of coal deposits. Determinations of the relative amounts of pyrite and marcasite by traditional methods of coal analysis are, however, beset with many difficulties. Using 57Fe Mössbauer spectroscopy and a mild chemical...
Origin and migration of hydrocarbon gases and carbon dioxide, Bekes Basin, southeastern Hungary
J.L. Clayton, C. W. Spencer, I. Koncz, A. Szalay
1990, Organic Geochemistry (15) 233-247
The Békés Basin is a sub-basin within the Pannonian Basin, containing about 7000 m of post-Cretaceous sedimentary rocks. Natural gases are produced from reservoirs (Precambrian to Tertiary in age) located on structural highs around the margins of the basin. Gas composition and stable carbon isotopic data indicate that most of...
Chironomidae of the southeastern United States: a checklist of species and notes on biology, distribution, and habitat
Patrick L. Hudson, David R. Lenat, Broughton A. Caldwell, David Smith
1990, Fish and Wildlife Research 7
We provide a current listing of the species of midges (Diptera:Chironomidae) in the southeastern United States (Alabama, Florida, Georgia, North Carolina, South Carolina, and Tennessee). This checklist should aid research on this group of insects, which have often proved useful in the assessment of water quality. We document each species'...
Integration of COCORP deep reflection and magnetic anomaly analysis in the southeastern United States: Implications for origin of the Brunswick and East Coast magnetic anomalies: Alternative interpretation and reply
Deborah R. Hutchinson, Kim D. Klitgord, Anne M. Trehu, John H. McBride, Kim Nelson
1990, Geological Society of America Bulletin (102) 271-279
Integration of magnetic anomaly analysis with COCORP deep reflection data from the southeastern United States provides three new constraints on the interpretation of the Brunswick and East Coast magnetic anomalies, as well as on the reflection data. These are as follows. (1) The source of the Brunswick anomaly lies within...
Ground-water resources of Honey Lake Valley, Lassen County, California, and Washoe County, Nevada
Elinor H. Handman, Clark J. Londquist, Douglas K. Maurer
1990, Water-Resources Investigations Report 90-4050
Honey Lake Valley is a 2,200 sq-mi, topographically closed basin about 35 miles northwest of Reno, Nevada. Unconsolidated basin-fill deposits on the valley floor and fractured volcanic rocks in northern and eastern uplands are the principal aquifers. In the study area, about 130,000 acre- ft of water recharges the aquifer...
Geology of the fushun coalfield, Liaoning Province, People's Republic of China
E. A. Johnson
1990, International Journal of Coal Geology (14) 217-236
The Fushun coalfield is located in Liaoning Province 45 km east of Shenyang in a relatively small east-west-trending exposure of Mesozoic and Cenozoic rocks surrounded by Precambrian terrane. The coal is included in a sequence of early Tertiary rocks consisting of...
Geological setting of chemosynthetic communities in the Monterey Fan Valley system
R.W. Embley, S.L. Eittreim, C.H. McHugh, W. R. Normark, G.H. Rau, Barbara Hecker, A.E. DeBevoise, H. Gary Greene, William B. F. Ryan, C. Harrold, C. Baxter
1990, Deep Sea Research Part A, Oceanographic Research Papers (37) 1651-1667
Alvin dives and camera tows within the "meander area" of the Monterey and Ascension Fan Valleys have located nine chemosynthetic communities over depths ranging from 3000 to 3600 m over a distance of 55 km. Most of the observed communities consist largely of Calyptogena phaseoliformis, but Solemya (species unknown) and...
Genetic implications of regional and temporal trends in ore fluid geochemistry of Mississippi Valley-type deposits in the Ozark region
J.G. Viets, D. L. Leach
1990, Economic Geology (85) 842-861
Fluids extracted from aqueous fluid inclusions in epigenetic gangue and ore minerals record the migration of huge volumes of highly saline fluids throughout the stratigraphic section of the Ozark region. The extracted fluids share many similarities regionally, but there are significant temporal differences which define two geochemically distinct end-member ore-forming...
Hydrocarbon-water interactions during brine migration: Evidence from hydrocarbon inclusions in calcite cements from Danish North Sea oil fields
J. Jensenius, R.C. Burruss
1990, Geochimica et Cosmochimica Acta (54) 705-713
Crude oils in primary and secondary fluid inclusions in calcite from fractures in seven offshore oil fields associated with diapiric salt structures in the Danish sector of the North Sea were analyzed by capillary column gas chromatography and compared with crude oils produced from the same reservoirs. Oils from fluid...
Production of sulfur gases and carbon dioxide by synthetic weathering of crushed drill cores from the Santa Cruz porphyry copper deposit near Casa Grande, Pinal County, Arizona
M. E. Hinkle, J. L. Ryder, S. J. Sutley, T. Botinelly
1990, Journal of Geochemical Exploration (38) 43-67
Samples of ground drill cores from the southern part of the Santa Cruz porphyry copper deposit, Casa Grande, Arizona, were oxidized in simulated weathering experiments. The samples were also separated into various mineral fractions and analyzed for contents of metals and...
Bowers Swell: Evidence for a zone of compressive deformation concentric with Bowers Ridge, Bering Sea
M. S. Marlow, A. K. Cooper, S. V. Dadisman, E.L. Geist, P.R. Carlson
1990, Marine and Petroleum Geology (7) 398-409
Bowers Swell is a newly discovered bathymetric feature which is up to 90 m high, between 12 and 20 km wide, and which extends arcuately about 400 km along the northern and eastern sides of Bowers Ridge. The swell was first revealed on GLORIA sonographs and subsequently mapped on seismic...
Will the 1990’s be a decade of increasingly destructive natural disasters?
P. L. Boulle
1990, Earthquakes & Volcanoes (USGS) (22) 173-175
Today, there is a considerable body of knowledge about natural hazards that laso enables us to devise effective means to limit the damage they cause. Yet, the reality of the situation is that disasters are increasing in number worldwide, and their social and economic impacts are becoming more nad more...
Geochemistry of vanadium in an epigenetic, sandstone-hosted vanadium-uranium deposit, Henry Basin, Utah
R. B. Wanty, M. B. Goldhaber, H. R. Northrop
1990, Economic Geology (85) 270-284
The epigenetic Tony M vanadium-uranium orebody in south-central Utah is hosted in fluvial sandstones of the Morrison Formation (Upper Jurassic). Although the deposit is mined for uranium, vanadium has a higher average abundance in the ore. Thus, the geochemistry of vanadium in the orebody was studied to characterize ore-forming processes...
Comparison of ground motion from tremors and explosions in deep gold mines
Art McGarr, J. Bicknell, J. Churcher, S. Spottiswoode
1990, Journal of Geophysical Research Solid Earth (95) 21777-21792
Seismic body waves, from tamped chemical explosions, two with yields of 50 and one of 150 kg, were compared with corresponding data from three mining-induced tremors with a view to testing methods of discriminating between the two types of events. Detonated at depths of about 2 km, all three explosions...
Volcanic geology and eruption frequency, São Miguel, Azores
Richard B. Moore
1990, Bulletin of Volcanology (52) 602-614
Six volcanic zones comprise São Miguel, the largest island in the Azores. All are Quaternary in age except the last, which is partly Pliocene. From west to east the zones are (1) the trachyte stratovolcano of Sete Cidades, (2) a field of alkali-basalt cinder cones and lava flows with minor...
Volcanology and mineral deposits
P. W. Lipman
1990, Earthquakes & Volcanoes (USGS) (22) 230-231
Traditionally, volcanologists have focused on forecasting, observing, and interpreting events, processes, and products of eruptions at active volcanoes. Such work involves drama, beauty, fascination scientific problems, and the socially important aim of reducing risks to life and property.  In contrast, old volcanic regions, which host many of the world's major hydrothermal-vein,...
International decade for natural disaster reduction
W. W. Hays
1990, Earthquakes & Volcanoes (USGS) (22) 33-39
Throughout history, humanity has found itself in conflict with naturally occurring events of geologic, hydrologic, and atmospheric origin. this conflict has been demonstrated repeatedly when people build urban centers at the water's edge, in or near active fault systems capable of generating earthquakes, on steep slopes, near active volcanoes, or...
Ross Sea
J. C. Behrendt
W.E. LeMasurier, J.W. Thomson, P.E. Baker, P.R. Kyle, P. D. Rowley, J.L. Smellie, W.J. Verwoerd, editor(s)
1990, Antarctic Research Series 48-A
Eight short-wavelength, seismically defined penetrative structures having associated 1- to 5-km-wide magnetic anomalies (Table A. 12.1) in the western Ross Sea (Figure A. 12.1) are interpreted as volcanic in origin. Modeled anomalies fitted to the observed data and constrained by 24-fold seismic reflection profiles support the interpretation of these submarine...
Communicating risk information and warnings
D. S. Mileti
1990, Earthquakes & Volcanoes (USGS) (22) 193-194
Major advances have occurred over the last 20 years about how to effectively communicate risk information and warnings to the public. These lessons have been hard won. Knowledge has mounted on the finding from social scientific studies of risk communication failures, successes and those which fell somewhere in between. Moreover,...