Depositional history of the Lagniappe Delta, northern Gulf of Mexico
J. L. Kindinger
1989, Geo-Marine Letters (9) 59-66
The northern Gulf of Mexico continental shelf is characterized by superimposing deltas. One such delta, informally named Lagniappe, extends east of the Mississippi Delta from mid-shelf to the continental slope. This late Wisconsinan delta is adjacent to, but not associated with the Mississippi Delta complex: the fluvial source was probably...
Dynamic rupture modeling with laboratory-derived constitutive relations
P. G. Okubo
1989, Journal of Geophysical Research Solid Earth (94) 12321-12335
A laboratory-derived state variable friction constitutive relation is used in the numerical simulation of the dynamic growth of an in-plane or mode II shear crack. According to this formulation, originally presented by J. H. Dieterich, frictional resistance varies with the logarithm of the slip rate and with the logarithm of...
Diapiric transfer of melt in Kilauea Iki lava lake, Hawaii: A quick, efficient process of igneous differentiation
Rosalind Tuthill Helz, H. Kirschenbaum, J.W. Marinenko
1989, Geological Society of America Bulletin (101) 578-594
Kilauea Iki lava lake, formed in 1959, is a large pond of picritic basalt (average MgO content = 15.34% by weight), which has cooled and crystallized as a small, self-roofed magma chamber. Repeated drilling of the upper crust of the lake, down to its molten core, and more recent (1981)...
Predictors of the peak width for networks with exponential links
B.M. Troutman, M.R. Karlinger
1989, Stochastic Hydrology and Hydraulics (3) 1-16
We investigate optimal predictors of the peak (S) and distance to peak (T) of the width function of drainage networks under the assumption that the networks are topologically random with independent and exponentially distributed link lengths. Analytical results are derived using the fact that, under these assumptions, the width function...
Evidence of uplift near Charleston, South Carolina
S. Rhea
1989, Geology (17) 311-315
In spite of extensive research, the causal structure of the 1886 magnitude 7 earthquake near Charleston, South Carolina, has not been identified. In this study I analyzed digital surface topography and river morphology in light of earlier studies using seismic reflection, seismic refraction,...
[Book review] The biogeography of fire in the San Bernardino Mountains of California---A historical study, by R.A. Minnich
Jon E. Keeley
1989, Madroño (36) 287-288
Review of: The Biogeography of Fire in the San Bernardino Mountains of California--A Historical Study. By Richard A. Minnich. University of California Publications in Geography Volume 28, University of California Press, Berkeley. 120 pp. plus plates, soft cover....
New species of Apoloniinae (Acari: Trombiculidae) from the Laysan albatross taken in the Midway Islands and key to the species of Apoloniinae of the world
M.L. Goff, P.R. Sievert, L. Sileo
1989, Journal of Medical Entomology (26) 484-486
Womersia midwayensis Goff, Sievert and Sileo is described as a new species from specimens taken off a Laysan albatross chick, Diomedea immutabilis (L.), collected on Sand Island, Midway Islands. A key to the genera and species of larval Apoloniinae of the world is given....
[Book review] Middle American Herpetology, by Jaime Villa, Larry David Wilson, and Jerry D. Johnson
N.J. Scott Jr.
1989, Copeia (1989) 802-804
Review of: Middle American Herpetology: a bibliographic checklist. By Jaime Villa, Larry David Wilson and Jerry D. Johnson. 1988. University of Missouri Press, Columbia, Missouri 65211. 132 p., 16 color plates, $35.00 (hardcover)....
Hydrogen and formate oxidation coupled to dissimilatory reduction of iron or manganese by Alteromonas putrefaciens
Derek R. Lovley, Elizabeth J.P. Phillips, D.J. Lonergan
1989, Applied and Environmental Microbiology (55) 700-706
The ability of Alteromonas putrefaciens to obtain energy for growth by coupling the oxidation of various electron donors to dissimilatory Fe(III) or Mn(IV) reduction was investigated. A. putrefaciens grew with hydrogen, formate, lactate, or pyruvate as the sole electron donor and Fe(III) as the sole electron acceptor. Lactate and pyruvate were oxidized to acetate,...
Effect of site conditions on ground motion and damage
R. Borcherdt, G. Glassmoyer, M. Andrews, E. Cranswick
1989, Earthquake Spectra (5) 23-42
Results of seismologic studies conducted by the U.S. reconnaissance team in conjunction with Soviet colleagues following the tragic earthquakes of December 7, 1988, suggest that site conditions may have been a major factor in contributing to increased damage levels in Leninakan. As the potential severity of these effects in Leninakan...
Rocky Mountain Tertiary coal-basin models and their applicability to some world basins
R. M. Flores
1989, International Journal of Coal Geology (12) 767-798
Tertiary intermontane basins in the Rocky Mountain region of the United States contain large amounts of coal resources. The first major type of Tertiary coal basin is closed and lake-dominated, either mud-rich (e.g., North Park Basin, Colorado) or mud plus carbonate...
Dinoflagellate species and organic facies evidence of marine transgression and regression in the atlantic coastal plain
D. Habib, J. A. Miller
1989, Palaeogeography, Palaeoclimatology, Palaeoecology (74) 23-47
Palynological evidence is used to date and interpret depositional environments of sediments of Campanian, Maestrichtian and early Danian ages cored in three wells from South Carolina and Georgia. The evidence is usefil for distinguishing environments which lithofacies evidence indicates a range from nonmarine to coastal to inner neritic shallow shelf....
Organic geochemistry and brine composition in Great Salt, Mono, and Walker Lakes
Joseph L. Domagalski, W. H. Orem, H.P. Eugster
1989, Geochimica et Cosmochimica Acta (53) 2857-2872
Samples of Recent sediments, representing up to 1000 years of accumulation, were collected from three closed basin lakes (Mono Lake, CA, Walker Lake, NV, and Great Salt Lake, UT) to assess the effects of brine composition on the accumulation of total organic...
Effect of dietary moisture level on response to diet by Atlantic salmon
S. G. Hughes
1989, Progressive Fish-Culturist (51) 20-23
The addition of moisture (water) to a diet had no positive effect on the weight gain of fingerlings of Atlantic salmon (Salmo salar). Moisture additions up to 30% actually reduced weight gain by up to 10%. Diet moisture level is not the primary factor in the acceptability of some moist...
Chemical composition of maturing and spawning Atlantic salmon from different locations
H. A. Poston, H. G. Ketola
1989, Progressive Fish-Culturist (51) 133-139
We examined the relation between the environmental or nutritional background and the chemical composition of body tissues and reproductive success in wild (sea‐run, river‐captured, ocean‐captured, landlocked) and hatchery‐reared Atlantic salmon (Salmo salar). More essential fatty acids of the linolenic acid family (n‐3 acids, also called ω‐3 acids) occurred in eggs...
Characterization of alkyl carbon in forest soils by CPMAS 13C NMR spectroscopy and dipolar dephasing
I. Kogel-Knabner, Patrick G. Hatcher
1989, Science of the Total Environment (81-82) 169-177
Samples obtained from forest soils at different stages of decomposition were treated sequentially with chloroform/methanol (extraction of lipids), sulfuric acid (hydrolysis), and sodium chlorite (delignification) to enrich them in refractory alkyl carbon. As revealed by NMR spectroscopy, this treatment yielded residues with high contents of alkyl carbon. In the NMR...
Different structural characteristics in the cell envelope of the fish pathogen Aeromonas salmonicida
R. C. Cipriano, A.R. Blanch
1989, Microbios Letters (40) 87-95
Movement of five selected sports species of fish in Everglades National Park
H.E. Bryant, M. R. Dewey, N.A. Funicelli, G.M. Ludwig, D.A. Meineke, L.J. Mengel
1989, Bulletin of Marine Science (44) 515
A new method for the automatic interpretation of Schlumberger and Wenner sounding curves
A.A.R. Zohdy
1989, Geophysics (54) 245-253
A fast iterative method for the automatic interpretation of Schlumberger and Wenner sounding curves is based on obtaining interpreted depths and resistivities from shifted electrode spacings and adjusted apparent resistivities, respectively. The method is fully automatic. It does not require an initial guess of the number of layers, their thicknesses,...
Epizootic mortality in hatchery-reared lake trout Salvelinus namaycush caused by a putative virus possibly of the Herpesvirus group
P. E. McAllister, R. L. Herman
1989, Diseases of Aquatic Organisms (6) 113-119
No abstract available....
Preliminary evaluations of regional ground-water quality in relation to land use
D. Cain, D.R. Helsel, S.E. Ragone
1989, Ground Water (27) 230-244
Preliminary results from New York, New Jersey, Connecticut, Florida, Nebraska, and Colorado indicate that regional ground-water quality has been affected by human activities. The frequencies of detection of volatile organic compounds and some trace elements were larger in ground water underlying urban or industrial areas in comparison to undeveloped areas....
Chloritization and associated alteration at the Jabiluka unconformity-type uranium deposit, Northern Territory, Australia
Constance J. Nutt
1989, Canadian Mineralogist (27 pt 1) 41-58
Jabiluka is the largest of four known uncomformity-type uranium deposits that are hosted by brecciated and altered metasedimentary rocks in the Pine Creek geosyncline, Northern Territory, Australia. The alteration zone at Jabiluka is dominated by chlorite, but also contains white mica, tourmaline and apatite; hematite is present, but only in...
Glacimarine sedimentary processes, facies and morphology of the south-southeast Alaska shelf and fjords
R.D. Powell, B. F. Molnia
1989, Marine Geology (85) 359-390
High precipitation from Gulf of Alaska air masses can locally reach up to 800 cm a−1. This precipitation on tectonically active mountains creates cool-temperate glaciation with extremely active erosion and continuously renewed resources. High basal debris loads up to 1.5 m...
Mechanisms of Cenozoic tectonic rotation, Pacific Northwest Convergent Margin, U.S.A.
Ray E. Wells
1989, Book chapter, Paleomagnetic rotations and continental deformation. NATO ASI Series (C: Mathematical and Physical Sciences)
Large clockwise rotations (15–80°) are characteristic of Cenozoic volcanic and sedimentary rocks along the convergent margin of the northwestern United States. Abundant paleomagnetic data from 62–12 m.y. old rocks in forearc, arc, and backarc regions show that rotation increases with age and with proximity to the coast. Paleomagnetic and structural...
NEIC; the National Earthquake Information Center
R.P. Masse, R.E. Needham
1989, Earthquakes & Volcanoes (USGS) (21) 4-45
Mexico was hit by one of the most devastating earthquakes in its history on September 19, 1985 at 7:18 a.m. MDT time. this earthquake, which was centered about 380 kilometers west-southwest of Mexico City, had a surface-wave magnitude of 8.1. In less than a minute, seismic waves from this earthquake...
