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Annotated record of the detailed examination of Mn deposits from ARA Islas Orcadas Cruise 12 core stations (1979)

Kaharoeddin, F A ; Eggers, M ; Graves, R S ; [weitere]

PANGAEA

In: Supplement to: Kaharoeddin, F A; Eggers, M; Graves, R S; Goldstein, E H; Hattner, J; Jones, S C; Ciesielski, Paul F (1979): ARA Islas Orcadas Cruise 1277 sediment descriptions. Sedimentology Research Laboratory Contributions, Antarctic Research Facility, Department of Geology, Florida State University, Tallahassee, Contribution No 47, 144 pp, https://www.ngdc.noaa.gov/mgg/curator/data/islas_orcadas/io1277/io1277_descriptions.pdf

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Publikationsdatum: 2023-08-28

Beschreibung: The purpose of this volume, the ninth in a series of similar publications (Goodell, 1964, 1965, 1968; Frakes 1971, 1973 ; Cassidy et al., 1977), is to continue a presentation to the research community of sediment core descriptions and attendant data of cored and otherwise obtained sediments retrieved in waters of the Southern Ocean aboard the research vessel, ARA Islas Orcadas (formerly, USNS Eltanin), as a part of the circumpolar survey begun by Eltanin in 1962 (see issue of Antarctic Journal of the United States, Vol. 8, No. 3, 1973). The data presented herein are concerned with the results of coring activities aboard cruise 1277 of Islas Orcadas, the third marine geology coring cruise of this vessel under the terms of the present United States-Argentine agreement. The core descriptions are organised as follows: 1) a brief summary of the coring objectives of the cruise, together with a discussion of core recovery; 2) a table and map of station location data for materials retrieved; 3) a table of tentative age-dates for each piston core; 4) an explanation of the laboratory procedures and descriptive criteria used in the description of the sediments, and 5) lithologic descriptions of the piston and trigger cores, and the piston and trigger core bag samples.

Schlagwort(e): Color description; Deposit type; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Description; Elevation of event; Event label; GC; Gravity corer; Identification; IO1277; IO1277.001-PC; IO1277.002-PC; IO1277.002-TC; IO1277.003-PC; IO1277.006-PC; IO1277.006-TC; IO1277.007-TC; IO1277.013-PC; IO1277.014-PC; IO1277.017-PC; IO1277.020-PC; IO1277.020-TC; IO1277.021-PC; IO1277.022-PC; IO1277.025-PC; IO1277.026-PC; IO1277.027-PC; IO1277.029-PC; IO1277.029-TC; IO1277.030-PC; IO1277.031-PC; IO1277.032-PC; IO1277.033-PC; IO1277.033-TC; IO1277.034-PC; IO1277.036-PC; IO1277.036-TC; IO1277.037-PC; IO1277.037-TC; IO1277.042-PC; IO1277.042-TC; Islas Orcadas; Latitude of event; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; PC; Piston corer; Position; Quantity of deposit; Sediment type; Size; Substrate type; Visual description

Materialart: Dataset

Format: text/tab-separated-values, 1098 data points

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Annotated record of the detailed examination of Mn deposits from ARA Islas Orcadas Cruise 16 core stations (1982)

Kaharoeddin, F A ; Graves, R S ; Bergen, James A ; [weitere]

PANGAEA

In: Supplement to: Kaharoeddin, F A; Graves, R S; Bergen, James A; Eggers, Margaret R; Harwood, David M; Humphreys, CL; Goldstein, E H; Jones, S C; Watkins, David K (1982): ARA Islas Orcadas Cruise 1678 Sediment descriptions. Antartic Research Facility, Department of Geology, Florida Sate University, Tallahassee, Florida, Contribution No. 50, 178 pp, https://www.ngdc.noaa.gov/mgg/curator/data/islas_orcadas/io1678/io1678_descriptions.pdf

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Publikationsdatum: 2024-01-20

Beschreibung: The purpose of this volume, the seventh in a series of similar publications (Goodell, 1964, 1965, 1968; Frakes 1971, 1973 ; Cassidy et al., 1977), is to continue a presentation to the research community of sediment core descriptions and attendant data of cored and otherwise obtained sediments retrieved in waters of the Southern Ocean aboard the research vessel, ARA Islas Orcadas (formerly, USNS Eltanin), as a part of the circumpolar survey begun by Eltanin in 1962 (see issue of Antarctic Journal of the United States, Vol. 8, No. 3, 1973). The data presented herein are concerned with the results of coring activities aboard cruise 1678 of Islas Orcadas, the fith and final marine geology coring cruise of this vessel under the terms of the present United States-Argentine agreement. The core descriptions are organised as follows: 1) a brief summary of the coring objectives of the cruise, together with a discussion of core recovery; 2) a table and map of station location data for materials retrieved; 3) a table of tentative age-dates for each piston core; 4) an explanation of the laboratory procedures and descriptive criteria used in the description of the sediments, and 5) lithologic descriptions of the piston and trigger cores, and the piston and trigger core bag samples.

Schlagwort(e): Comment; Deposit type; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Description; Elevation of event; Event label; GC; Gravity corer; Identification; IO1678; IO1678.018-PC; IO1678.019-PC; IO1678.023-PC; IO1678.024-PC; IO1678.026-PC; IO1678.027-PC; IO1678.028-PC; IO1678.036-PC; IO1678.041-PC; IO1678.050-PC; IO1678.055-PC; IO1678.056-PC; IO1678.064-PC; IO1678.066-PC; IO1678.066-TC; IO1678.070-PC; IO1678.070-TC; IO1678.073-PC; IO1678.076-PC; IO1678.083-PC; IO1678.090-TC; IO1678.096-PC; IO1678.108-PC; IO1678.111-PC; IO1678.111-TC; IO1678.116-PC; IO1678.117-PC; Islas Orcadas; Latitude of event; Longitude of event; Method/Device of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; PC; Piston corer; Position; Quantity of deposit; Sediment type; Size; Substrate type; Visual description

Materialart: Dataset

Format: text/tab-separated-values, 625 data points

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Refractive indices of sapphire under elastic, uniaxial strain compression along the a axis (2001)

Jones, S. C. ; Vaughan, B. A. M. ; Gupta, Y. M.

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 90 (2001), S. 4990-4996

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Sapphire crystals were shocked to 190 kbar along the a axis to characterize their use as optical windows, for velocity interferometry measurements, up to their Hugoniot elastic limit. When partially polarized light is incident on the samples, birefringence in the material is manifested as a beat frequency in the probe light that is returned from the specimens. Proper procedures for interpreting the velocity interferometry data for various polarization conditions were developed. The refractive indices at 514.5 nm wavelength decreased linearly with the density. The data were analyzed to yield three photoelastic coefficients: p12, p31, and p41. Calibration is developed for any polarization state of the probe light. Particle velocity wave forms are consistent with elastic behavior up to 170 kbar shock stress, and evidence of deviation from elastic behavior is present at 190 kbar impact stress. High precision shock velocity measurements are reported to 170 kbar stress along the a axis. © 2001 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.1409576

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Refractive index and elastic properties of z-cut quartz shocked to 60 kbar (2000)

Jones, S. C. ; Gupta, Y. M.

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 88 (2000), S. 5671-5679

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Shock wave experiments were performed to characterize z-cut, α-quartz as an optical window for velocity interferometry measurements. Refractive index changes and shock velocities were determined to 60 kbar peak stress. Results indicate that the window correction to velocity measurements is a constant fraction of the actual particle velocity, Δu/u=0.081 07. Shock velocity measurements provide the Hugoniot curve to 60 kbar, and yield the fourth-order elastic constant, C3333=174 810 kbar. By combining the velocity correction factor and the shock velocity measurements, the refractive index is determined to be a linear function of density. This finding is used to show that the velocity correction appropriate for a step jump may be applied to monotonically time-dependent wave forms with negligible error. The present work has demonstrated the use of z-cut quartz as an optical window to 60 kbar. © 2000 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.1319329

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Characterization of a two-dimensional, thermoluminescent, dose-mapping system: Uniformity, reproducibility, and calibrations (1994)

Fehl, D. L. ; Muron, D. J. ; Sujka, B. R. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Review of Scientific Instruments 65 (1994), S. 3243-3251

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ISSN: 1089-7623

Quelle: AIP Digital Archive

Thema: Physik , Elektrotechnik, Elektronik, Nachrichtentechnik

Notizen: Initial testing of a new, commercially available, thermoluminescent dosimetry system is reported. The radiation detectors consist of two-dimensional arrays of 104 CaF2:Mn dosimeters, deposited on flexible polyimide sheets. The spatial resolution is 3 mm, and the combined thickness of the dosimeters and the substrate is 185 μm. Exposed sheets are processed by laser heating. This system is compatible with intense, pulsed Bremsstrahlung fields and electronics hardness testing. A two-step calibration procedure is described. In spatial uniformity tests at 66 Gy the detectors exhibited random fluctuations of 1%–3% superposed on broad spatial drifts of ∼±5%. Reproducibility for strips of 288 elements, cut from sheets and given absorbed doses of 100 Gy, was ∼2%. For absorbed doses in the 10 Gy–1.5 kGy range, response vs exposure curves show reasonable features of linearity, supralinearity, and saturation for CaF2:Mn phosphor. Small systematic effects (〈7%) can be observed for sheets and strips stacked during exposure; these effects are explained by radiation transport calculations and impact the dosimetric technique.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.1144558

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Transient solution of the diffusion equation for a composite system heated with a laser beam (1989)

Young, J. F. ; Kelly, P. ; Abtahi, A. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 66 (1989), S. 5627-5629

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: The general solution of the thermal diffusion equation for the case of a semi-infinite two-layer system that is heated with a localized cw laser beam of circularly uniform intensity profile is extended to times after the pulse is switched off. An application of that solution in the field of solid-state dosimetry is illustrated by simulating the experimental thermoluminescence response curves obtained from LiF:(Mg,Ti)-phosphor-coated borasilicate glass, for the special case of heating with a CO2-laser beam that has a uniform and square intensity profile: In effect, we solve the diffusion equation experimentally.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.343670

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Interference competition in desert subterranean termites (1991)

Jones, S. C. ; Trosset, M. W.

Springer

Entomologia experimentalis et applicata 61 (1991), S. 83-90

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ISSN: 1570-7458

Schlagwort(e): Foraging behavior ; Gnathamitermes perplexus ; Heterotermes aureaus ; interspecific aggression ; Isoptera

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Abstract We examined interspecific aggression between two subterranean termite species, Heterotermes aureus (Snyder) (Rhinotermitidae) and Gnathamitermes perplexus (Banks) (Termitidae). In laboratory tests with worker termites, neither species was the inherently superior fighter, but rather the outcome of interspecific encounters depended on the number of conspecifics. We then investigated patterns of resource use by these species during a 13-month period in the Sonoran Desert. Baits consisted of toilet-paper rolls, which have been shown to be a mutually acceptable food source. Analyses of foraging activity demonstrated that the two species did not forage independently of each other. Not only were the two species negatively associated spatially, but extended periods of temporal segregation were observed. G. perplexus took significantly longer to return to sites that it had simultaneously occupied with H. aureus than to sites that G. perplexus had occupied alone. The pattern of co-occurrence of these two species is consistent with the hypothesis that interspecific interference competition affects their spatial and temporal distribution.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00367171

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