Erk Reimnitz, P. W. Barnes, J. R. Harper
1990, Journal of Coastal Research (6) 439-470
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accuratePaul T. Delaney, R.S. Fiske, Asta Miklius, Arnold T. Okamura, Maurice K. Sako
1990, Science (247) 1311-1316
A magnitude 7.2 earthquake in 1975 caused the south flank of Kilauea Volcano, Hawaii, to move seaward in response to slippage along a deep fault. Since then, a large part of the volcano's edifice has been adjusting to this perturbation. The summit of Kilauea extended at a rate of 0.26...
Kenneth G. Miller, Dennis V. Kent, Andrew N. Brower, Laurel M. Bybell, Mark D. Feigenson, Richard K. Olsson, Richard Z. Poore
1990, GSA Bulletin (102) 331-339
We use magnetostratigraphy and Sr-isotope stratigraphy to improve stratigraphic control for the Eocene to Oligocene of the New Jersey coastal plain (ACGS4 borehole). Magnetostratigraphy in many cases is complicated in outcrop sections of shallow-water (<200 m paleodepth) sediments by low remanence and weathering; we minimize these problems by analyzing large...
James R. Hein, Hseuh-Wen Yeh, John A. Barron
1990, Journal of Sedimentary Petrology (60) 250-257
Bedded quartz cherts that contain recognizable diatoms are rare in the geologic record and are described here for the first time. The Eocene Andrew Lake Formation on Adak Island, Alaska consists of about 800 m of sedimentary and volcanogenic rocks. Quartz cherts containing diatoms occur in the upper part of...
William Glen
1990, Eos, Transactions, American Geophysical Union (71) 354-354
The period 1967–1987 saw a 20% increase in the time it takes to complete the doctorate. That figure is based on data provided by the National Research Council from 11 scientific and engineering fields, including the Earth, atmospheric and marine sciences.The median time spent earning the degree rose from 5.4...
Richard L. Reynolds, Neil S. Fishman, Richard B. Wanty, Martin B. Goldhaber
1990, GSA Bulletin (102) 368-380
Aeromagnetic anomalies at Cement oil field (Anadarko basin, Oklahoma) have been attributed to authigenic magnetite. The following characteristics of the magnetite, however, indicate that it is contamination introduced by drilling: (1) occurrence as sharp angular blades and as spheres, commonly with metallographic textures typical of industrial alloys and with associated...
J.W. Rudnicki, Evelyn A. Roeloffs
1990, Journal of Applied Mechanics (57) 32-39
This paper derives the stress and pore pressure fields induced by a plane-strain shear (gliding edge) dislocation moving steadily at a constant speed V in a linear elastic, fluid-infiltrated (Biot) solid. Solutions are obtained for the limiting cases in which the plane containing the moving dislocation (y = 0) is...
T.E. Osterkamp, A.H. Lachenbruch
1990, Journal of Cold Regions Engineering (4) 38-42
The mean surface temperature of permafrost in Alaska has warmed locally as much as 4° C during the last century although some areas show little or no indication of a warming or cooling. There is evidence for a recent cooling, since 1983, south of Prudhoe Bay to the Brooks Range....
Clay L. Montague, Lynn W. Lefebvre, David G. Decker, Nicholas R. Holler
1990, Ecological Modelling (50) 177-203
Alternative deterministic simulation models were compared to test the management consequences of present uncertainty about the degree of density dependence involved in cotton rat population cycles in southern Florida sugarcane fields. Efficacy of rodenticide applied in different months was explored under six different scenarios of density dependence and independence in...
V. Casulli, Ralph T. Cheng
1990, Applied Mathematical Modelling (14) 122-131
In this paper stability and error analyses are discussed for some finite difference methods when applied to the one-dimensional shallow-water equations. Two finite difference formulations, which are based on a combined Eulerian-Lagrangian approach, are discussed. In the first part of this paper the results of numerical analyses for an explicit...
James S. Kuwabara, Cecily C.Y. Chang, Sofie P. Pasilis
1990, Journal of Environmental Engineering (116) 394-409
Chemical and biological interactions involving arsenic (As) and phosphorus (P) appear to affect significantly As transport and distribution in Whitewood Creek, South Dakota. Data (first‐order uptake rate constants, standing crop, and accumulation factors) that can be used to predict As transport have been determined using algae collected in the creek...
Miriam Kastner, Henry Elderfield, J.B. Martin, Erwin Suess, Keith A. Kvenvolden, Robert E. Garrison
1990, Proceedings of the Ocean Drilling Program: Scientific Results (112) 413-440
Two distinct hydrogeochemical regimes currently dominate the Peruvian continental margin. One, in shallower water (150-450 m) shelf to upper-slope regions, is characterized by interstitial waters with strong positive chloride gradients with depth. The maximum measured value of 1043 mM chloride at Site 680 at ITS corresponds to a degree of...
Keith A. Kvenvolden, Frances D. Hostettler, Tamara Frank
1990, Proceedings of the Ocean Drilling Program: Scientific Results (113) 199-208
Heavy hydrocarbons (about C15+) are ubiquitous but minor components in sediment from three sites (692, 693, and 694) drilled during Ocean Drilling Program (ODP) Leg 113. This preliminary report is the first to describe the distribution of some of these hydrocarbons in sediment of the Weddell Sea. Samples from Sites...
Keith A. Kvenvolden, Tamara Frank, M. Golan-Bac
1990, Proceedings of the Ocean Drilling Program: Scientific Results (112) 505-515
Hydrocarbon gases (methane, ethane, propane, isobutane, «-butane, ethene, and propene) are present in Tertiary and Quaternary shelf, upper-slope, and lower-slope deposits of the Peruvian continental margin. Methane dominates the composition of the hydrocarbon gas at all 10 sites examined during Ocean Drilling Program (ODP) Leg 112. Generation of methane is...
Keith A. Kvenvolden, B.R. Simoneit
1990, AAPG Bulletin (74) 223-237
In the Guaymas Basin, a spreading axis in the Gulf of California, petroleum having a wide range of compositions forms by hydrothermal alteration of organic matter in Quaternary sediment composed mainly of marine diatomaceous ooze and muddy turbidites. In Escanaba Trough, at the southern end of the Gorda Ridge spreading...
Keith A. Kvenvolden, Miriam Kastner
1990, Proceedings of the Ocean Drilling Program: Scientific Results (112) 517-526
Gas hydrates were recovered during coring by Ocean Drilling Program (ODP) Leg 112 at Sites 685 and 688 on the Peruvian outer continental margin at latitudes of 9° and 11.5°S, where water depths are 5070 and 3820 m, respectively. In addition, nearby Sites 682 and 683 yielded compelling evidence that...
Ralph A. Haugerud
1990, Geology (18) 183-184
No abstract available....
Charles R. Bacon
1990, Journal of Petrology (31) 135-166
Quaternary monogenetic volcanism in the High Cascades of Oregon is manifested by cinder cones, lava fields, and small shields. Near Crater Lake caldera, monogenetic lava compositions include: low-K (as low as 0·09% K2O) high-alumina olivine tholeiite (HAOT); medium-K. calc-alkaline basalt, basaltic andesite, and andesite; and shoshonitic basaltic andesite (2·1% K2O,...
Del Wayne R. Nimmo, Max H. Dodson, Patrick H. Davies, Joseph C. Greene, Mark A. Kerr
1990, Research Journal of the Water Pollution Control Federation (62) 7-15
Since its introduction, Ceriodaphnia dubia, a small planktonic daphnid, has been widely used for biomonitoring point source discharges. This species was also used to determine nonpoint sources of metals and related contaminants in three trout streams in the west where mining activities have been widespread. Along Chalk Creek, Colo., specific...
James D. Nichols, Kenneth H. Pollock
1990, Ecology (71) 21-26
Recruitment to animal populations can occur through both immigration and in situ reproduction. These two components of recruitment are conceptually distinct and lead to different mechanistic models of population dynamics. We describe a capture—recapture design that can be used to obtain separate estimates of two recruitment components. We then illustrate...
Lisa R. Gaddis, Peter J. Mouginis-Mark, Joan N. Hayashi
1990, Photogrammetric Engineering and Remote Sensing (56) 211-224
Space Shuttle Imaging Radar (SIR-8) images, field observations, and small-scale (cm) terrain measurements are used to study lava flow surface textures related to emplacement processes of a single hawaiian lava flow. Although smooth pahoehoe textures are poorly characterized on the SIR-B data, rougher pahoehoe types and the a'a flow portion...
Jill McCarthy, George A. Thompson
1990, Geological Society of America Bulletin (102) 255-255
No abstract available....
J.W. Beeman, J.F. Novotny
1990, Report
The goal of this project is to compare net-pen rearing methods to traditional hatchery methods of rearing upriver bright fall chinook salmon (Oncorhvnchus tshawvtscha). Fish were reared at several densities in net pens at three Columbia River backwater sites during 1984-1987, and in a barrier net at one site during...
Thomas Barringer, Dennis Dunn, William Battaglin, Eric Vowinkel
1990, Journal of the American Water Resources Association (26) 1-9
Efforts to relate shallow ground-water quality to the land use near a well lead to several statistical difficulties. These include potential uncertainty in land-use categorical data due to misclassification, data closure, distributional skewing, and spatial autocorrelation. Methods of addressing these problems are, respectively, the establishment of limits on minimum buffer...
Robert J. Kamilli, Mark A. Arnold, J. C. Cole, M. Dean Kleinkopf, Keenan Lee, William R. Miller, Gary L. Raines, U.S. Geological Survey, U.S. Geological Survey Saudi Arabian Project
1990, Book
Comprehensive detailed interdisciplinary study assesses the metallic-mineral-resource potential in the Aban Al Ahmar Quadrangle of the Kingdom of Saudi Arabia, located in the eastern margin of the northeastern Arabian Shield, utilizing techniques of geophysics, geologic mapping, remote sensing and geochemistry. The landscape of the study area is characterized by isolated...