Areal extent, hydrogeologic characteristics, and possible origins of the carbonate rock Newburg Zone (Middle-Upper Silurian) in Ohio
M.L. Strobel, E. F. Bugliosi
1991, Ohio Journal of Science (91) 209-215
The zone occurs in carbonate rocks of Middle to Late Silurian age across much of Ohio. Known also to well drillers as the "Second Water' in the "Big Lime' carbonate sequence, the Newburg zone is a source of hydrocarbons in northeast Ohio, brines in southeast Ohio, and a widespread source...
Multicycle slip distribution along a laboratory fault
Chi-Yu King
1991, Journal of Geophysical Research (96)
Slip distribution along a laboratory fault, which consists of eight spring-connected blocks that are elastically driven to slide on a frictional surface, has been examined for a “long” sequence of slip events to test the applicability of some conceptual models proposed recently in the literature. The...
Relation of sediment load and flood-plain formation to climatic variability, Paria River drainage basin, Utah and Arizona
J.B. Graf, R. H. Webb, R. Hereford
1991, Geological Society of America Bulletin (103) 1405-1415
Suspended-sediment load, flow volume, and flood characteristics of the Paria River were analyzed to determine their relation to climate and flood-plain alluviation between 1923 and 1986. Flood-plain alluviation began about 1940 at a time of decreasing magnitude and frequency of floods in winter, summer, and fall. No floods with stages...
Organic matter variations in transgressive and regressive shales
M.A. Pasley, W.A. Gregory, G.F. Hart
1991, Organic Geochemistry (17) 483-509
Organic matter in the Upper Cretaceous Mancos Shale adjacent to the Tocito Sandstone in the San Juan Basin of New Mexico was characterized using organic petrology and organic geochemistry. Differences in the organic matter found in these regressive and transgressive offshore marine sediments have been documented and assessed within a...
Volcanic eruptions; energy and size
S. de la Cruz-Reyna
1991, Earthquakes & Volcanoes (USGS) (22) 140-141
The Earth is a dynamic planet. Many different processes are continuously developing, creating a delicate balance between the energy stored and generated in its interior and the heat lost into space. The heat in continuously transferred through complex self-regulating convection mechanisms on a planetary scale. The distribution of terrestrial heat...
Mid-continent earthquake zones; lessons from New Madrid, Missouri
B. J. Mitchell
1991, Earthquakes & Volcanoes (USGS) (22) 120-123
Many seismically active regions occur throughout the world as concentrated zones surrounded by the relatively stable crust of shields or platforms. Examples occur in central and eastern North America, northeastern Brazil, Australia, Norway, Svalbard, Greenland, and other places. Some of these zones, such as those at New Madrid, Missouri, and...
The nature of earthquake prediction
A.G. Lindh
1991, Earthquakes & Volcanoes (USGS) (22) 117-119
Earthquake prediction is inherently statistical. Although some people continue to think of earthquake prediction as the specification of the time, place, and magnitude of a future earthquake, it has been clear for at least a decade that this is an unrealistic and unreasonable definition. the reality is that earthquake prediction...
Seismicity and volcanism; a global perspective
J. H. Latter
1991, Earthquakes & Volcanoes (USGS) (22) 96-98
Earthquakes and volcanic eruptions are episodic, related phenomena, resulting from an unstable, evolving Earth. Earthquakes span at least 2 orders of magnitude of energy release (2 of Richter magnitude), and volcanic eruptions at least 3 orders of magnitude in both volume and energy. The largest known earthquakes, of magnitude about...
The tholeiite to alkalic basalt transition at Haleakala Volcano, Maui, Hawaii
C.-Y. Chen, F.A. Frey, M.O. Garcia, G. B. Dalrymple, S.R. Hart
1991, Contributions to Mineralogy and Petrology (106) 183-200
Previous studies of alkalic lavas erupted during the waning growth stages (<0.9 Ma to present) of Haleakala volcano identified systematic temporal changes in isotopic and incompatible element abundance ratios. These geochemical trends reflect a mantle mixing process with a systematic change in the proportions of mixing...
A Lome Prieta experience
Thomas C. Hanks
1991, Earthquakes & Volcanoes (USGS) (22) 124-128
Advances(?) in mitigating volcano hazards in Latin America
M.L. Hall
1991, Earthquakes & Volcanoes (USGS) (22) 149-150
The 1980's were incredible years for volcanology. As a consequence of the Mount St. Helens and other eruptions, major advances in our understanding of volcanic processes and eruption dynamics were made. the decade also witnessed the greatest death toll caused by volcanism since 1902. Following Mount St. Helens, awareness of...
Volcanoes in outer space and inner space
P. Francis
1991, Earthquakes & Volcanoes (USGS) (22) 151-153
AS a teenager, I spent many long, bone-chilling hours studying the Moon and the planets with a rickety, homemade telescope. After 30 years, I still recall the pain and pleasure of creeping illicitly out of the house in the small hours of the morning for the few moments of satisfaction...
Volcanic-hazards assessments; past, present, and future
D. R. Crandell
1991, Earthquakes & Volcanoes (USGS) (22) 131-132
A new reason to study volcanoes has developed within the last few decades; it is to anticipate the specific kinds and extents of future eruptions and their effects on people and property. Such studies are based chiefly on the eruptive histories of volcanoes and the distribution of past eruptive products....
Reducing volcanic risk
R. Decker, B. Decker
1991, Earthquakes & Volcanoes (USGS) (22) 129-130
The last two decades have brought major advances in research on how volcanoes work and how to monitor their changing habits. Geologic mapping as well as studies of earthquake patterns and surface deformation associated with underground movement of magma have given scientists a better view of the inner structure and...
Engineering seismology
Ambraseys N.N
1991, Earthquakes & Volcanoes (USGS) (22) 109-110
Twenty years have elasped since the first issue of Earthquakes & Volcanoes. Apart from the remarkable increases in the number of scientists actively enagaged in earth sciences, what are the outstanding achievements during the past 20 years in the field of engineering seismology, which is my own speciality?...
Preliminary assessment of the effects of selenium in agricultural drainage on fish in the San Joaquin Valley
M. K. Saiki, M.R. Jennings, S. J. Hamilton
A. Dinar, D. Zilberman, editor(s)
1991, Book chapter, The economics and management of water and drainage in agriculture.
Concentrations of total selenium were measured in whole-body samples of seven fishes from the Sacramento and San Joaquin River systems and the San Francisco Bay complex. Concentrations of selenium (up to 11 µg/g dry weight in whole-body composite samples) were highest in fish from canals and sloughs in...
Floods of February and March 1990 in Alabama, Georgia, and Florida
J. L. Pearman, T. C. Stamey, G. W. Hess, G. H. Nelson Jr.
1991, Water-Resources Investigations Report 91-4089
No abstract available....
MS-222 used to separate phase I striped bass with uninflated swim bladders
A. Henderson-Arzapalo, J. Hawkinson, P. Keyes
1991, Research Information Bulletin 8
No abstract available at this time...
Flight performance energetics and water turnovers of Tippler Pigeons with a harness and doorsal load
James A. Gessaman, Gar W. Workman, Mark R. Fuller
1991, The Condor (93) 546-554
We measured carbon dioxide production and water efflux of 12 tippler pigeons (Columba spp.) during seven experimental flights using the doubly labeled water (DLW) method. Prior to the experiment birds were randomly assigned to one of two groups. One group flew as controls (no load or harness) on all...
Common and scientific names of fishes from the United States and Canada: Appendix 2, Exotic Fishes
W.R. Courtenay, Dawn P. Jennings, J.D. Williams
1991, American Fisheries Society Special Publication 20
Abstract not supplied at this time...
Regional assessment of nonpoint-source pesticide residues in ground water, San Joaquin Valley, California
Joseph L. Domagalski, N. M. Dubrovsky
1991, Water-Resources Investigations Report 91-4027
No abstract available....
Geochemistry of halogens in the Milk River aquifer, Alberta, Canada
J. Fabryka-Martin, Donald O. Whittemore, S.N. Davis, P.W. Kubik, Prakash Sharma
1991, Applied Geochemistry (6) 447-464
Analytical data are presented for Cl, Br and I on a regional scale for the Milk River aquifer. The three halides show strikingly similar spatial distributions and are highly correlated. Concentrations are low in the freshwater portions of the aquifer but increase by as much as two orders of magnitude...
Vegetation patterns and environmental gradients in coastal meadows on the Yukon-Kuskokwim Delta, Alaska
Karen L. Kincheloe, Robert A. Stehn
1991, Canadian Journal of Botany (69) 1616-1627
Tundra vegetation and environmental variables were sampled on the Yukon–Kuskokwim delta in western Alaska. On transects extending from intertidal mudflat to upland tundra, we estimated cover by vascular plant species, soil moisture, salinity, relative elevation, depth to permafrost, and distance upriver from the coast. Two-way indicator species analysis (TWINSPAN)...
Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, soil, and rock samples from the western part (west of the Snake River) of the Palisades Roadless Study Area, Bonneville County, Idaho
John H. Bullock Jr., Harley D. King, R. T. Hopkins Jr., J. M. Motooka, Phil L. Hageman, B. H. Roushey
1991, Open-File Report 91-374-A
No abstract available....
Influence of pycnocline topography and water-column structure on marine distributions of alcids (Aves: Alcidae) in Anadyr Strait, Northern Bering Sea, Alaska
J. Christopher Haney
1991, Marine Biology (110) 419-435
Systematic ship-board surveys were used to simultaneously record seabird abundances and resolve coarse-scale (3 to 10 km) horizontal and fine-scale (1 to 10 m) vertical variability in water-column structure and bathymetry for portions of the coastal zone in Anadyr Strait near western St. Lawrence Island, northern Bering Sea, Alaska, during...
