William T. Oakley, David E. Burt Jr.
1994, Water-Resources Investigations Report 94-4049
No abstract available. ...
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Publication Extents
Not all publications have extents, not all extents are completely accurateP.T. Visscher, R.P. Kiene, B.F. Taylor
1994, FEMS Microbiology Ecology (14) 179-189
Demethylation and cleavage of dimethylsulfoniopropionate (DMSP) was measured in three different types of,intertidal marine sediments: a cyanobacterial mat, a diatom-covered tidal flat and a carbonate sediment. Consumption rates of added DMSP were highest in cyanobacterial mat slurries (59 ?? mol DMSP l-1 slurry h-1) and lower in slurries from a...
Norman H. Sleep, M.L. Blanpied
1994, Pure and Applied Geophysics PAGEOPH (143) 9-40
A simple cyclic process is proposed to explain why major strike-slip fault zones, including the San Andreas, are weak. Field and laboratory studies suggest that the fluid within fault zones is often mostly sealed from that in the surrounding country rock. Ductile creep driven by the difference between fluid pressure...
R. F. Yerkes, R. H. Campbell
1994, Open-File Report 94-266
T. M. Cronin, T.R. Holtz Jr., R.C. Whatley
1994, Marine Geology (119) 305-332
Ostracodes were studied from deep Arctic Ocean cores obtained during the Arctic 91 expedition of the Polarstern to the Nansen, Amundsen and Makarov Basins, the Lomonosov Ridge, Morris Jesup Rise and Yermak Plateau, in order to investigate their distribution in Arctic Ocean deep water (AODW) and apply these data to paleoceanographic reconstruction of bottom...
Y.-G. Li, J.E. Vidale, K. Aki, C.J. Marone, W.H.K. Lee
1994, Science (265) 367-370
Observations and modeling of 3- to 6-hertz seismic shear waves trapped within the fault zone of the 1992 Landers earthquake series allow the fine structure and continuity of the zone to be evaluated. The fault, to a depth of at least 12 kilometers, is marked by a zone 100 to...
Jeffrey S. Seewald, W.E. Seyfried Jr., Wayne C. Shanks III
1994, Geochimica et Cosmochimica Acta (58) 5065-5082
Organic-rich diatomaceous ooze was reacted with seawater and a Na-Ca-K-Cl fluid of seawater chlorinity at 325–400°C, 400–500 bars, and fluid/sediment mass ratios of 1.56–2.35 to constrain factors regulating the abundance and stable isotope composition of C and S species during hydrothermal alteration of sediment from Guaymas Basin, Gulf of California....
R.L. Blazs, D.M. Walters, T.E. Coffey, D.K. White, D.L. Boyle, J.F. Kerestes
1994, Water Data Report OK-93-1
Volumes 1 and 2 of the water resources data for the 1993 water year for Oklahoma consists of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes or reservoirs; and water levels of ground-water wells. This report contains discharge records for 135 gaging...
I. Friedman, F.W. Trembour, G.I. Smith, F.L. Smith
1994, Quaternary Research (41) 185-190
Experiments carried out under temperatures and relative humidities that approximate ambient conditions show that the rate of hydration of obsidian is a function of the relative humidity, as well as of previously established variables of temperature and obsidian chemical composition. Measurements of the relative humidity of soil at 25 sites...
Janette Cascio
1994, Cartography and Geographic Information Systems (21) 155-158
As the need to share spatial data increases, more than agreement on a common format is needed to ensure that the data is meaningful to both the importer and the exporter. Effective data transfer also requires common definitions of spatial features. To achieve this, part 2 of the Spatial Data...
Stephen D. McCormick, Bjorn Thrandur Bjornsson
1994, Aquaculture (121) 235-244
Atlantic salmon which had been released as fry in tributaries of the Connecticut River (Northeastern USA) were captured during the migratory period (9 May to 6 June) 1 to 2 years later. Migrants (smolts) were captured above a dam on the main-stem; non-migrants (parr) were captured in two tributaries. Migrants...
L.A. Ford, R. C. Cipriano, T.K. Penniston
1994, Journal of Wildlife Diseases (30) 447-449
Aeromonas salmonicida was isolated from paddlefish (Polyodon spathula) mortalities collected during an epizootic of furunculosis at the Spring River State Hatchery, Arkansas (USA), in 1992. Isolates of the bacterium were obtained from culture of gill and kidney tissue. This is the first epizootic of bacterial etiology to be reported in paddlefish....
William P. Dillon, Myung W. Lee, Dwight F. Coleman
1994, Annals of the New York Academy of Sciences (715) 364-380
Natural gas hydrates, mostly methane hydrates, occur within seafloor sediments almost everywhere in the world’s oceans where water depths exceed 300 to 500 m, and hydrates in this setting probably contain very large quantities of methane.’ Gas hydrates have been identified in marine sediments by coring and by the response...
J.R. Matzko
1994, Engineering Geology (36) 173-181
The Chinese underground nuclear test site in the Kuruktag and Kyzyltag mountains of the Xinjiang Uygur Autonomous Region of northwest China, is the location of sixteen underground tests that occurred between 1969 and 1992. The largest test to date, conducted on 21 May 1992, had a reported yield of about...
Gerald A. Brady, April M. Converse
1994, Conference Paper, Structures Congress XII
Processing of strong-motion earthquake accelerograms is now carried out routinely on a world-wide basis. Two international workshops have given participants the opportunity to assess their capabilities. Data from the larger instrumentation networks are disseminated widely. The US Geological Survey's strong-motion network consists largely of film recorders, due to their long...
M. H. Carr, Randolph L. Kirk, A. McEwen, J. Veverka, P. Thomas, J.W. Head, S. Murchie
1994, Icarus (107) 61-71
The surface of Gaspra can be divided into several facets separated by ridges. Superimposed on the facets and ridges are two populations of craters. Type 1 craters are crisply defined and constitute a production function of impact origin. Type 2 craters are mostly irregular shallow depressions and probably of various...
J.A. Peck, J.W. King, Steven M. Colman, V.A. Kravchinsky
1994, Earth and Planetary Science Letters (122) 221-238
Rock-magnetic measurements of sediment cores from the Academician Ridge region of Lake Baikal, Siberia show variations related to Late Quaternary climate change. Based upon the well-dated last glacial-interglacial transition, variations in magnetic concentration and mineralogy are related to glacial-interglacial cycles using a conceptual model. Interglacial intervals are characterized by low...
K. V. Cashman, M. T. Mangan, S. Newman
1994, Journal of Volcanology and Geothermal Research (61) 45-68
The character of the vesicle population in lava flows includes several measurable parameters that may provide important constraints on lava flow dynamics and rheology. Interpretation of vesicle size distributions (VSDs), however, requires an understanding of vesiculation processes in feeder conduits, and of post-eruption modifications to VSDs during transport and emplacement....
Peter Popenoe
1994, Open-File Report 93-724
M.L. Zoback, E.H. McKee, R.J. Blakely, G. A. Thompson
1994, Geological Society of America Bulletin (106) 371-382
As defined by the most recent aeromagnetic surveys, the north-northwest-trending northern Nevada rift zone extends for at least 500 km from southern Nevada to the Oregon Nevada border. At several places along the rift, the magnetic anomaly is clearly related to north-northwest-trending dikes and flows that, based on new radiometric...
J.R. Watterson
1994, Geology (22) 1144-1146
Microscopic filiform morphologies in gold which are indistinguishable from forms originally interpreted as bacterial in origin were produced in the laboratory by treating amalgams made from natural and artificial gold with hot nitric acid. Textures ranging from cobblestone to deeply crenulated to nodular...
Charles Parrett, Stephen R. Holnbeck
1994, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
Previous studies relating unit discharge to elevation indicated that large floods in the Rocky Mountains may be limited by elevation. However, high-elevation data are sparse in Montana and the indications may not be entirely correct. Based on data at 19 sites in Montana, a strong log-linear relation exists between large-flood...
E.E. Foord, M.L.D.S.C. Chaves, F.E. Lichte
1994, Mineralogical Record (25) 133-135
Senaite, Pb(Ti,Fe,Mn)21O38, a member of the crichtonite group, was first described from alluvial gravels near Dattas, Minas Gerais, Brazil. It was subsequently reported (always from alluvial stream gravels) from about seven additional localities. "Senaite' from the first in situ source in Brazil, at the Fazenda Guariba, Minas Gerais, Brazil was...
Edward E. Fischer
1994, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
Flooding of the Iowa River during July and August 1993 caused extensive contraction scour at the State Highway 99 bridge over the Iowa River at Wapello, Iowa. At least 3.3 m of piling under the footing of the second pier from the right (west) abutment were exposed. The scoured streambed...
J.E. Coffin, W.L. Fletcher
1994, Water Data Report FL-99-3A
Water resources data for the 1999 water year in Florida consist of continuous or daily discharges for 354 streams, periodic discharge for 17 streams, continuous or daily stage for 121 streams, periodic stage for 1 stream, peak stage and discharge for 38 streams, continuous or daily elevations for 21 lakes,...