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...
Collecting rocks
Rachel M. Barker
1990, Report
National Earthquake Hazards Reduction Program; time to expand
K.V. Steinbrugge
1990, Earthquakes & Volcanoes (USGS) (22) 195-197
All of us in earthquake engineering, seismology, and many related disciplines have been directly or indirectly affected by the National Earthquake Hazards Reduction Program (NEHRP). This program was the result of the Earthquake Hazards Reduction Act of 1977 (Public Law 95-124). With well over a decade of experience, should this...
Twenty years (actually 16) in retrospect
H. Spall
1990, Earthquakes & Volcanoes (USGS) (22) 234-235
I have been editor of Earthquakes and Volcanoes for the last 16 years. Since I will soon be handing over the reins to a consortium of editors who will produce the magazine at the USGS National Earthquake Information Center in Golden, Colorado, I thought I would offer a tetrospective view of editing...
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...
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...
Identification of a herpes-like virus in sea otters during rehabilitation after the T/V Exxon Valdez oil spill
R.K. Harris, R.B. Moeller, T.P. Lipscomb, J.M. Pletcher, R.J. Haebler, P.A. Tuomi, C.R. McCormick, Anthony R. DeGange, Daniel M. Mulcahy, T.D. Williams
Keith Bayha, Jennifer Kormendy, editor(s)
1990, Biological Report 90(12)
During implantation of radiotelemetry devices in sea otters (Enhydra lutris) at the Seward Otter Rehabilitation Center, surgical team members noted ulcers in the oral cavity of each of five animals examined. Oral lesions were identified in 25 of 27 otters examined at the center. Histological evaluation of the lesions revealed...
An earthquake strength scale for the media and the public
A. C. Johnston
1990, Earthquakes & Volcanoes (USGS) (22) 214-216
Let's face it: seismologists do a pretty poor job of communicating the facts about our science to the public. Earthquake magnitude is the classic example. How many of us have struggled to explain the Richter scale? We explain that it is logarithmic, with each unit indicating a factor of 10...
Volcano hazard mitigation program in Indonesia
A. Sudradjat
1990, Earthquakes & Volcanoes (USGS) (22) 227-229
Volcanological investigations in Indonesia were started in the 18th century, when Valentijn in 1726 prepared a chronological report of the eruption of Banda Api volcno, Maluku. Modern and intensive volcanological studies did not begin until the catastrophic eruption of Kelut volcano, East Java, in 1919. The eruption took 5,011 lives...
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...
Effects of vegetation manipulation on breeding waterfowl in prairie wetlands--a literature review
H.A. Kantrud
1990, General Technical Report RM-194
No abstract available....
Diet of canvasbacks during breeding
J. E. Austin, J.R. Serie, J.H. Noyes
1990, Prairie Naturalist (22) 171-176
We examined diets of canvasbacks (Aythya valisineria) breeding in southwestern Manitoba during 1977-81. Percent volume of animal foods consumed did not differ between males and females nor among prenesting, rapid follicle growth, laying, incubation, and renesting periods in females (mean = 50.1%). Tubers and shoots of fennelleaf pondweed (Potamogeton pectinatus)...
Use of social indices to predict reproductive success in canvasbacks
Jerome R. Serie, Lewis M. Cowardin
1990, Journal of Wildlife Management (54) 66-72
We correlated temporal changes in social groupings of canvasbacks (Aythya valisineria) breeding near Minnedosa, Manitoba, with an independent estimate of hen success during 1974-80. Roadside counts of pairs, lone males, and flocked males were made along transects at 5-day intervals, normalized to percentages to allow comparisons among years, and plotted...
Method to estimate center of rigidity using vibration recordings
Erdal Safak, Mehmet Çelebi
1990, Journal of Structural Engineering (116) 85-97
A method to estimate the center of rigidity of buildings by using vibration recordings is presented. The method is based on the criterion that the coherence of translational motions with the rotational motion is minimum at the center of rigidity. Since the coherence is a function of frequency, a gross...
Some hydrological impacts of climate change for the Delaware River Basin
Gary D. Tasker
1990, Conference Paper
To gain insight into possible impacts of climate change on water availability in the Delaware River, two models are linked. The first model is a monthly water balance model that converts the temperature and precipitation values generated by a random number generator to monthly streamflow values. The monthly streamflow values...
Enigmatic eight-meter trace fossils in the Lower Pennsylvanian Lee sandstone, central Appalachian basin, Tennessee
C. Wnuk, J. O. Maberry
1990, Journal of Paleontology (64) 440-450
Enigmatic tubular trace fossils up to eight meters long occur in the Lower Pennsylvanian Middlesboro Member of the Lee Formation. Two morphotypes occur: type 1 trace fossils are plain, smooth, vertical, nonbranching, parallel-walled, tubular structures; type 2 trace fossils branch, have walls with faint vertical striations, regularly...
Schlumberger soundings near Medicine Lake, California
A.A.R. Zohdy, R.J. Bisdorf
1990, Geophysics (55) 956-964
The use of direct current resistivity soundings to explore the geothermal potential of the Medicine Lake area in northern California proved to be challenging because of high contact resistances and winding roads. Deep Schlumberger soundings were made by expanding current electrode spacings along the winding roads. Measured apparent resistivities were...
Occurrence, distributions, and transport of herbicides and their degradation products in the lower Mississippi river and its tributaries
W. E. Pereira
1990, ES and T Contents (24) 1400-1406
The Mississippi River and its tributaries drain extensive agricultural regions of the midcontinental United States, where large amounts of herbicides are applied as weed control agents on crops such as corn and soybeans. Studies being conducted by the U.S. Geological Survey along the lower Mississippi River and its major tributaries,...
Oil-shale data, cores, and samples collected by the U.S. geological survey through 1989
John R. Dyni, Frances Gay, Thomas C. Michalski
Gary James H., editor(s)
1990, Conference Paper, Oil Shale Symposium Proceedings
The U.S. Geological Survey has acquired a large collection of geotechnical data, drill cores, and crushed samples of oil shale from the Eocene Green River Formation in Colorado, Wyoming, and Utah. The data include about 250,000 shale-oil analyses from about 600 core holes. Most of the data is from Colorado...
Effect of soil moisture on the sorption of trichloroethene vapor to vadose-zone soil at picatinny arsenal, New Jersey
J. A. Smith, C. T. Chiou, J.A. Kammer, D. E. Kile
1990, Environmental Science & Technology (24) 676-683
This report presents data on the sorption of trichloroethene (TCE) vapor to vadose-zone soil above a contaminated water-table aquifer at Picatinny Arsenal in Morris County, NJ. To assess the impact of moisture on TCE sorption, batch experiments on the sorption of TCE vapor by the field soil were carried out...
Organic geochemical studies of the transformation of gymnospermous xylem during peatification and coalification to subbituminous coal
Patrick G. Hatcher, H. E. Lerch III, T.V. Verheyen
1990, International Journal of Coal Geology (16) 193-196
Organic geochemical investigations of peatified and coalified xylem from gymnosperms have provided useful information on the organic transformational processes collectively known as coalification. The combined use of solid-state 13C nuclear magnetic resonance (NMR) and pyrolysis/gas chromatography/mass spectrometry (py/gc/ms) has allowed us to...
Channel-changing processes on the Santa Cruz River, Pima County, Arizona, 1936-86
John T.C. Parker
French Richard H., editor(s)
1990, Conference Paper, Hydraulics/Hydrology of Arid Lands
Lateral channel change on the mainly ephemeral Santa Cruz River, Pima County, Arizona, causes damage and has spawned costly efforts to control bank erosion. Aerial photographs, historical data, and field observations are used to document the history of channel change since 1936. Variability in the nature and degree of channel...
Integration of potential-field and digital geologic data for two North American geoscience transects
J. D. Phillips
1990, Journal of Geological Education (38) 330-338
Two North American contributions to the Global Geoscience Transects Program, the Quebec-Maine-Gulf of Maine transect and the Great Lakes portion of the United States-Canadian Border transect, are among the first to produce digital geology in a form that can be combined with gridded gravity and aeromagnetic data. Maps of shaded...
Collection and analysis of colloidal particles transported in the Mississippi River, U.S.A.
T.F. Rees, J. F. Ranville
1990, Journal of Contaminant Hydrology (6) 241-250
Sediment transport has long been recognized as an important mechanism for the transport of contaminants in surface waters. Suspended sediment has traditionally been divided into three size classes: sand-sized (>63 ??m), silt-sized (<63 ??m but settleable) and clay-sized (non-settleable). The first two classes are easily collected and characterized using screens...
Cooling rate and thermal structure determined from progressive magnetization of the dacite dome at Mount St. Helens, Washington
D. Dzurisin, R.P. Denlinger, J. G. Rosenbaum
1990, Journal of Geophysical Research Solid Earth (95) 2763-2780
Our study of a magnetic anomaly associated with the recently active dacite dome at Mount St. Helens suggests that the dome consists of a hot, nonmagnetized core surrounded by a cool, magnetized carapace and flanking talus. The talus does not contribute to the anomaly because...
