Source depth dependence of micro-tsunamis recorded with ocean-bottom pressure gauges: The January 28, 2000 Mw 6.8 earthquake off Nemuro Peninsula, Japan
K. Hirata, H. Takahashi, E. Geist, K. Satake, Y. Tanioka, H. Sugioka, H. Mikada
2003, Earth and Planetary Science Letters (208) 305-318
Micro-tsunami waves with a maximum amplitude of 4-6 mm were detected with the ocean-bottom pressure gauges on a cabled deep seafloor observatory south of Hokkaido, Japan, following the January 28, 2000 earthquake (Mw 6.8) in the southern Kuril subduction zone. We model the observed micro-tsunami and estimate the focal depth...
Variable post-Paleozoic deformation detected by seismic reflection profiling across the northwestern "prong" of New Madrid seismic zone
J.H. McBride, Andre J. M. Pugin, W.J. Nelson, T.H. Larson, S.L. Sargent, J.A. Devera, F.B. Denny, E.W. Woolery
2003, Tectonophysics (368) 171-191
High-resolution shallow seismic reflection profiles across the northwesternmost part of the New Madrid seismic zone (NMSZ) and northwestern margin of the Reelfoot rift, near the confluence of the Ohio and Mississippi Rivers in the northern Mississippi embayment, reveal intense structural deformation that apparently took place during the late Paleozoic and/or...
The Mendocino crustal conveyor: Making and breaking the California crust
K.P. Furlong, J. Lock, C. Guzofski, J. Whitlock, H. Benz
2003, International Geology Review (45) 767-779
The northward migration of the Mendocino triple junction has resulted in a fundamental modification of the crust of coastal California. As a consequence of viscous coupling between the southern edge of the Gorda slab and the base of the North American crust beneath the Coast Ranges of central and northern...
The crustal structure from the Altai Mountains to the Altyn Tagh fault, northwest China
Y. Wang, Walter D. Mooney, X. Yuan, R. G. Coleman
2003, Journal of Geophysical Research B: Solid Earth (108)
[1] We present a new crustal section across northwest China based on a seismic refraction profile and geologic mapping. The 1100‐km‐long section crosses the southern margin of the Chinese Altai Mountains, Junggar Accretional Belt and eastern Junggar basin, easternmost Tianshan Mountains, and easternmost Tarim basin. The crustal...
Insights into oil cracking based on laboratory experiments
R.J. Hill, Y. Tang, I.R. Kaplan
2003, Organic Geochemistry (34) 1651-1672
The objectives of this pyrolysis investigation were to determine changes in (1) oil composition, (2) gas composition and (3) gas carbon isotope ratios and to compare these results with hydrocarbons in reservoirs. Laboratory cracking of a saturate-rich Devonian oil by confined, dry pyrolysis was performed at T = 350-450??C, P...
Using multiple logistic regression and GIS technology to predict landslide hazard in northeast Kansas, USA
G.C. Ohlmacher, J.C. Davis
2003, Engineering Geology (69) 331-343
Landslides in the hilly terrain along the Kansas and Missouri rivers in northeastern Kansas have caused millions of dollars in property damage during the last decade. To address this problem, a statistical method called multiple logistic regression has been used to create a landslide-hazard map for Atchison, Kansas, and surrounding...
Mercury accumulation in snow on the Idaho National Engineering and Environmental Laboratory and surrounding region, southeast Idaho, USA
D. D. Susong, M.L. Abbott, D. P. Krabbenhoft
2003, Environmental Geology (43) 357-363
Snow was sampled and analyzed for total mercury (THg) on the Idaho National Engineering and Environmental Laboratory (INEEL) and surrounding region prior to the start-up of a large (9-11 g/h) gaseous mercury emission source. The objective was to determine the effects of the source on local and regional atmospheric deposition...
Seismic monitoring instrumentation needs of a building owner and the solution: A cooperative effort
M. Çelebi, A. Sanli, M. Sinclair, S. Gallant, D. Radulescu
Laura N. Lowes, G. R. Miller, editor(s)
2003, Conference Paper, Proceedings of the Structures Congress and Exposition
A specific case whereby the owner of a building, in collaboration with another federal agency with expertise in seismic monitoring of buildings, private consulting engineers, and a supplier, facilitated development of a seismic monitoring system for a 24-story building in San Francisco, California. The unique aspects of this monitoring systems...
Sediment-starved sand ridges on a mixed carbonate/siliciclastic inner shelf off west-central Florida
S. E. Harrison, S. D. Locker, A. C. Hine, J.H. Edwards, D. F. Naar, D.C. Twichell, D. J. Mallinson
2003, Marine Geology (200) 171-194
High-resolution side-scan mosaics, sediment analyses, and physical process data have revealed that the mixed carbonate/siliciclastic, inner shelf of west-central Florida supports a highly complex field of active sand ridges mantled by a hierarchy of bedforms. The sand ridges, mostly oriented obliquely to the shoreline trend, extend from 2 km to...
Searching for a life history approach to salmon escapement management
E.E. Knudsen, E.W. Symmes, F.J. Margraf
2003, American Fisheries Society Symposium (2003) 261-276
A number of Pacific salmon populations have already been lost and many others throughout the range are in various states of decline. Recent research has documented that Pacific salmon carcasses serve as a key delivery vector of marine-derived nutrients into the freshwater portions of their ecosystems. This nutrient supply plays...
Critical pressure and multiphase flow in Blake Ridge gas hydrates
P.B. Flemings, Xiuying Liu, W.J. Winters
2003, Geology (31) 1057-1060
We use core porosity, consolidation experiments, pressure core sampler data, and capillary pressure measurements to predict water pressures that are 70% of the lithostatic stress, and gas pressures that equal the lithostatic stress beneath the methane hydrate layer at Ocean Drilling Program Site 997, Blake Ridge, offshore North Carolina. A...
Effect of causal and acausal filters on elastic and inelastic response spectra
D.M. Boore, Sinan Akkar
2003, Earthquake Engineering and Structural Dynamics (32) 1729-1748
With increasing interest in displacement spectra and long-period motions, it is important to check the sensitivity of both elastic and inelastic response spectra to the filtering that is often necessary to remove long period artifacts, even from many modern digital recordings. Using two records of very different character from the...
Differential mortality of male spectacled eiders (Somateria fischeri) and king eiders (Somateria spectabilis) subsequent to anesthesia with propofol, bupivacaine, and ketoprofen
Daniel M. Mulcahy, Pamela A. Tuomi, R. S. Larsen
2003, Journal of Avian Medicine and Surgery (17) 117-123
Twenty free-ranging spectacled eiders (Somateria fischeri; 10 male, 10 female), 11 free-ranging king eiders (Somateria spectabilis; 6 male, 5 female), and 20 female common eiders (Somateria mollissima) were anesthetized with propofol, bupivacaine, and ketoprofen for the surgical implantation of satellite transmitters. Propofol was given to induce and maintain anesthesia (mean...
Characterization of yield reduction in Ethiopia using a GIS-based crop water balance model
G.B. Senay, J. Verdin
2003, Canadian Journal of Remote Sensing (29) 687-692
In many parts of sub-Saharan Africa, subsistence agriculture is characterized by significant fluctuations in yield and production due to variations in moisture availability to staple crops. Widespread drought can lead to crop failures, with associated deterioration in food security. Ground data collection networks are sparse, so methods using geospatial rainfall...
Toggling of seismicity by the 1997 Kagoshima earthquake couplet: A demonstration of time-dependent stress transfer
S. Toda, R. Stein
2003, Journal of Geophysical Research B: Solid Earth (108)
Two M ??? 6 well-recorded strike-slip earthquakes struck just 4 km and 48 days apart in Kagoshima prefecture, Japan, in 1997, providing an opportunity to study earthquake interaction. Aftershocks are abundant where the Coulomb stress is calculated to have been increased by the first event, and they abruptly stop where...
Long-term and large-scale perspectives on the relationship between biodiversity and ecosystem functioning
A.J. Symstad, F. S. Chapin III, D.H. Wall, K.L. Gross, L.F. Huenneke, G.G. Mittelbach, Debra P. C. Peters, D. Tilman
2003, BioScience (53) 89-98
In a growing body of literature from a variety of ecosystems is strong evidence that various components of biodiversity have significant impacts on ecosystem functioning. However, much of this evidence comes from short-term, small-scale experiments in which communities are synthesized from relatively small species pools and conditions are highly controlled....
Mercury and methylmercury contents in mine-waste calcine, water, and sediment collected from the Palawan Quicksilver mine, Philippines
J. E. Gray, I.A. Greaves, D.M. Bustos, D. P. Krabbenhoft
2003, Conference Paper, Environmental Geology
The Palawan Quicksilver mine, Philippines, produced about 2,900 t of mercury during mining of cinnabar ore from 1953 to 1976. More than 2,000,000 t of mine-waste calcines (retorted ore) were produced during mining, much of which were used to construct a jetty in nearby Honda Bay. Since 1995, high Hg...
A rehabilitation plan for walleye populations and habitats in Lake Superior
Michael H. Hoff
2003, Miscellaneous Publication 2003-01
The walleye (Stizostedion vitreum vitreum) has been historically important in regional fisheries and fish communities in large bays, estuaries, and rivers of Lake Superior. Significant negative impacts on the species caused by overharvesting, habitat degradation, and pollution during the late 1800s and early 1900s have led to the preparation of...
Incubation behaviour of Greater Scaup Aythya marila on the Yukon-Kuskokwim Delta, Alaska
Paul L. Flint
2003, Wildfowl (54) 71-79
This study examined the incubation behaviour of Greater Scaup Aythya marila on the Yukon-Kuskokwim Delta, Alaska. The goals of the study were to describe the incubation behaviour of Greater Scaup in terms of incubation constancy, recess frequency and recess length. The use of endogenous reserves by Greater Scaup was examined...
Seabird tissue archival and monitoring project: Egg collections and analytical results 1999-2002
Stacy S. Vander Pol, Steven J. Christopher, David G. Roseneau, Paul R. Becker, Russel D. Day, John R. Kucklick, Rebecca S. Pugh, Kristin S. Simac, Geoff Weston-York
2003, Report
In 1998, the U.S. Geological Survey Biological Resources Division (USGS-BRD), the U.S. Fish and Wildlife Service (USFWS) Alaska Maritime National Wildlife Refuge (AMNWR), and the National Institute of Standards and Technology (NIST) began the Seabird Tissue Archival and Monitoring Project (STAMP) to collect and cryogenically bank tissues from seabirds in...
Probable relationships between the lower Jurassic crocodilomorph trackways Batrachopus and Selenichus: Evidence and implications based on new finds from the St. George area southwestern Utah
Martin G. Lockley, James I. Kirkland, Andrew R.C. Milner
2003, Ichnos: An International Journal for Plant and Animal Traces (11) 143-149
The enigmatic ichnogenus Selenichnus (Hitchcock, 1858) from the Lower Jurassic of Massachusetts and Utah may represent poorly preserved, extramorphological examples of Batrachopus. Selenichnus trackways from the St. George area (Utah) are virtually indistinguishable from the type material described by Hitchcock (1858) and Lull (1953) from Massachusetts. However, Selenichnus type specimens...
Changes in the freshwater mussel (Bivalvia: Unionidae) fauna of the Bear Creek system of Northwest Alabama and Northeast Mississippi
S.W. McGregor, J.T. Garner
2003, American Malacological Bulletin (18) 61-70
Drastic reductions in diversity and abundance of mussel populations are documented in many systems. Bear Creek, located in northwest Alabama and northeast Mississippi, has seen changes to its fauna, possibly the result of impoundment, channelization, wastewater discharge, and sedimentation from such sources such as strip mining, agriculture, and silviculture. The...
High-resolution multibeam mapping and submersible surveys of topographic features in the northwestern Gulf of Mexico
E.L. Hickerson, G.P. Schmahl, D.C. Weaver, J.V. Gardner
2003, Conference Paper, Oceans Conference Record (IEEE)
The Flower Garden Banks National Marine Sanctuary (FGBNMS) and the USGS Pacific Seafloor Mapping Project mapped about 2000 km2 of the northwestern Gulf of Mexico continental shelf during June 2002, using a Kongsberg Simrad EM1000 multibeam echosounder. Mapping focused on select topographic highs thave hae been idetnnfied as biological features...
Initial river test of a monostatic RiverSonde streamflow measurement system
C.C. Teague, D.E. Barrick, P.M. Lilleboe, R. T. Cheng
Rizoli J.A., editor(s)
2003, Conference Paper, Proceedings of the IEEE Working Conference on Current Measurement
A field experiment was conducted on May 7-8, 2002 using a CODAR RiverSonde UHF radar system at Vernalis, California on the San Joaquin River. The monostatic radar configuration on one bank of the river, with the antennas looking both upriver and downriver, provided very high-quality data. Estimates of both along-river...
Life and death of the resurrection plate: Evidence for its existence and subduction in the northeastern Pacific in Paleocene-Eocene time
Peter J. Haeussler, Dwight Bradley, Ray E. Wells, Marti L. Miller
2003, Geological Society of America Bulletin (115) 867-880
Onshore evidence suggests that a plate is missing from published reconstructions of the northeastern Pacific Ooean in Paleocene- Eocene time. The Resurrection plate, named for the Resurrection Peninsula ophiolite near Seward, Alaska, was located east of the Kula plate and north of the Farallon plate. We interpret coeval near-trench magmatism...
