Index Catalog // ScholarsArchive@OSU

Millennial-scale deep water oscillations: Reflections of the North Atlantic in the deep Pacific from 10 to 60 ka

Creator:: Lund, David C. and Mix, Alan C.
Abstract:: Northeast Pacific benthic foraminiferal δ¹⁸O and δ¹³C reveal repeated millennial-scale events of strong deep-sea ventilation (associated with nutrient depletion and/or high gas exchange) during stadial (cool, high ice volume) episodes from 10 to 60 ka, opposite the pattern in the deep North Atlantic. Two climate mechanisms may explain this pattern....
Resource Type:: Article

Geologic history of the summit of Axial Seamount, Juan de Fuca Ridge

Creator:: Clague, David A., Dreyer, Brian M., Paduan, Jennifer B., Martin, Julie F., Chadwick, William W., Jr., Caress, David W., Portner, Ryan A., Guilderson, Thomas P., McGann, Mary L., Thomas, Hans, Butterfield, David A., and Embley, Robert W.
Abstract:: Multibeam (1 m resolution) and side scan data collected from an autonomous underwater vehicle, and lava samples, radiocarbon-dated sediment cores, and observations of flow contacts collected by remotely operated vehicle were combined to reconstruct the geologic history and flow emplacement processes on Axial Seamount’s summit and upper rift zones. The...
Resource Type:: Article

Sequence verification of synthetic DNA by assembly of sequencing reads

Creator:: Wilson, Mandy L., Cai, Yizhi, Hanlon, Regina, Taylor, Samantha, Chevreux, Bastien, Setubal, João C., Tyler, Brett M., and Peccoud, Jean
Abstract:: Gene synthesis attempts to assemble user-defined DNA sequences with base-level precision. Verifying the sequences of construction intermediates and the final product of a gene synthesis project is a critical part of the workflow, yet one that has received the least attention. Sequence validation is equally important for other kinds of...
Resource Type:: Article
Full Text:: problem. The situation is similar with open-source packages like EMBOSS (9) or UGENE (10). The lack of a

Predator and shelter-size effects on coral reef fish and spiny lobster prey

Creator:: Eggleston, David B., Lipcius, Romuald N., and Grover, Jill J.
Abstract:: Population dynamics of coral reef fishes and spiny lobster appear to be determined by variable recruitment interacting with post-settlement processes, particularly predation. The risk of predation may be modified by the scaling between prey and shelter size, which enhances the protective capacity of a reef. We experimentally tested these predictions...
Resource Type:: Article
Full Text:: Prog Ser Published April 10 Predator and shelter-size effects on coral reef fish and spiny lobster

Anomalous seafloor spreading of the Southeast Indian Ridge near the Amsterdam-St. Paul Plateau

Creator:: Scheirer, Daniel S., Forsyth, Donald W., Conder, James A., Eberle, MichaelA., Hung, Shu-Huei, Johnson, Kevin, and Graham, David W.
Abstract:: The Amsterdam-St. Paul Plateau is bisected by the intermediate-rate spreading Southeast Indian Ridge, and numerous geophysical and tectonic anomalies arise from the interactions of the Amsterdam-St. Paul hotspot and the spreading center. The plate boundary geometry on the hotspot platform evolves rapidly (on timescales <1 Myr), off-axis volcanism is abundant,...
Resource Type:: Article
Full Text:: isostasy analys is the average thickness of the platform crust is -10 km, approximateJy 50% thicker than

Constraints on past plate and mantle motion from new ages for the Hawaiian-Emperor Seamount Chain

Creator:: O'Connor, John M., Steinberger, Bernhard, Regelous, Marcel, Koppers, Anthony A. P., Wijbrans, Jan R., Haase, Karsten M., Stoffers, Peter, Jokat, Wilfried, and Garbe-Schönberg, Dieter
Abstract:: Estimates of the relative motion between the Hawaiian and Louisville hot spots have consequences for understanding the role and character of deep Pacific-mantle return flow. The relative motion between these primary hot spots can be inferred by comparing the age records for their seamount trails. We report ⁴⁰Ar/³⁹Ar ages for...
Resource Type:: Article

Terahertz-wave generation in quasi-phase-matched GaAs

Creator:: Vodopyanov, K. L., Fejer, M. M., Yu, X., Harris, J. S., Lee, Yun-Shik, Hurlbut, Walter C., Kozlov, V. G., Bliss, D., and Lynch, C.
Abstract:: The authors demonstrate an efficient room temperature source of terahertz radiation using femtosecond laser pulses as a pump and GaAs structures with periodically inverted crystalline orientation, such as diffusion-bonded stacked GaAs and epitaxially grown orientation-patterned GaAs, as a nonlinear optical medium. By changing the GaAs orientation-reversal period (504–1277 μm), or...
Resource Type:: Article
Full Text:: -terahertz con- version efficiencies achieved so far by optical rectification methods are low, typically 10−6

Transpression between two warm mafic plates: The Queen Charlotte Fault revisited

Creator:: Rohr, Kristin M. M., Scheidhauer, Maren, and Tréhu, Anne Martine
Abstract:: The Queen Charlotte Fault is a transpressive transform plate boundary between the Pacific and North American plates offshore western Canada. Previous models for the accommodation of transpression include internal deformation of both plates adjacent to the plate boundary or oblique subduction of the oceanic plate; the latter has been the...
Resource Type:: Article
Full Text:: 135•001N 134030'W 134(•00• Kilometers . 0 10 20 30 40 50 60 Figure 2. GLORIA data [Bruns et al

Tillamook volcanic series : further evidence for tectonic rotation of the Oregon Coast Range

Creator:: Magill, James, Cox, Allan, and Duncan, Robert A.
Abstract:: Paleomagnetic directions from the Eocene Tillamook Volcanic Series of the Oregon Coast Range point 460 clockwise from the expected Eocene field direction. Potassium argon dating of six dikes and flows from this formation yields a mean age of 44.3 ± 0.6 m.y. These results establish that the Oregon coastal block...
Resource Type:: Article
Full Text:: Tilla•••_• I Eocene ,nt Tyee- 50 :• I Fløurnøy ', SRV 60 Fig. 10. Rotation versus age for geologic

Hyperspectral Imager for the Coastal Ocean: instrument description and first images

Creator:: Lucke, Robert L., Corson, Michael, McGlothlin, Norman R., Butcher, Steve D., Wood, Daniel L., Korwan, Daniel R., Li, Rong R., Snyder, William A., Davis, Curt O., and Chen, Davidson T.
Abstract:: The Hyperspectral Imager for the Coastal Ocean (HICO) is the first spaceborne hyperspectral sensor designed specifically for the coastal ocean and estuarial, riverine, or other shallow-water areas. The HICO generates hyperspectral images, primarily over the 400–900 nm spectral range, with a ground sample distance of ≈90 m (at nadir) and a high...
Resource Type:: Article

ScholarsArchive@OSU

Millennial-scale deep water oscillations: Reflections of the North Atlantic in the deep Pacific from 10 to 60 ka

Geologic history of the summit of Axial Seamount, Juan de Fuca Ridge

Sequence verification of synthetic DNA by assembly of sequencing reads

Predator and shelter-size effects on coral reef fish and spiny lobster prey

Anomalous seafloor spreading of the Southeast Indian Ridge near the Amsterdam-St. Paul Plateau

Constraints on past plate and mantle motion from new ages for the Hawaiian-Emperor Seamount Chain

Terahertz-wave generation in quasi-phase-matched GaAs

Transpression between two warm mafic plates: The Queen Charlotte Fault revisited

Tillamook volcanic series : further evidence for tectonic rotation of the Oregon Coast Range

Hyperspectral Imager for the Coastal Ocean: instrument description and first images

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