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A new species of western Atlantic lizardfish (Teleostei: Synodontidae: Synodus) and resurrection of Synodus bondi Fowler, 1939, as a valid species from the Caribbean with redescriptions of S. bondi, S. foetens (Linnaeus, 1766), and S. intermedius (Agassiz, 1829)

Creator:: Frable, Benjamin W., Baldwin, Carole C., Luther, Brendan M., and Weigt, Lee A.
Abstract:: Western Atlantic synodontid species were studied as part of an ongoing effort to reanalyze Caribbean shorefish diversity. A neighbor-joining tree constructed from cytochrome c oxidase I (COI) data revealed 2 highly divergent genetic lineages within both Synodus intermedius (Agassiz, 1829) (Sand Diver) and S. foetens (Linnaeus, 1766) (Inshore Lizardfish). A...
Resource Type:: Article
Full Text:: Lee A. Weigt1 Email address for contact author: frableb@si.edu 1 National Museum of Natural History

Geological and geochemical contraints on the isotopic composition of interstitial waters from the Hydrate Ridge region, Cascadia Continental margin

Creator:: Tomaru, A. M., Matsumoto, R., Torres, Marta E., and Borowski, Walter S.
Abstract:: The isotopic compositions of interstitial waters collected from Hydrate Ridge during Ocean Drilling Program Leg 204 were measured to evaluate the fluid evolution of this accretionary prism. At shallow depths, the dissolved Cl- concentrations and δD and δ¹⁸O values of the interstitial water reflect changes in the salinity and the...
Resource Type:: Article
Full Text:: dehydration within the deep prism results in a progressive de- crease in Cl– and δD with depth. Dehydration

Leg 204 synthesis : gas hydrate distribution and dynamics in the Central Cascadia accretionary complex

Creator:: Tréhu, Anne Martine, Torres, Marta E., Bohrmann, G., and Colwell, Frederick
Abstract:: Ocean Drilling Program (ODP) Leg 204 to Hydrate Ridge, located on the continental slope offshore Oregon (USA), was the first drilling expedition dedicated to understanding gas hydrate processes in accretionary complexes and provided a testbed for a number of different techniques for estimating the gas hydrate content of sediments. It...
Resource Type:: Article
Full Text:: dedicated to understanding gas hydrate processes in accretionary complexes and provided a testbed for a

Organic matter and carbon isotope composition of carbonate nodules and associated sediments from middle valley, leg 139

Creator:: Boni, M., Simoneit, Bernd R. T., Früh-Green, G. L., Lief, R. N., and McKenzie, J. A.
Abstract:: Carbonate nodules and associated sediments from Ocean Drilling Program Leg 139 sites of the Middle Valley, Juan de Fuca Ridge, were studied using a combination of inorganic and organic geochemical techniques. The mineralogy and stable isotopic compositions defined three types of nodules, reflecting the conditions of carbonate precipitation. Nodule ingrowth...
Resource Type:: Article
Full Text:: Drilling Program Leg 139 sites of the Middle Valley, Juan de Fuca Ridge, were studied using a combination

Dissolved organic carbon in interstitial waters from sediments of Middle Valley, leg 139

Creator:: Ran, Baiyun and Simoneit, Bernd R. T.
Abstract:: High-temperature combustion oxidation measurements of nonvolatile dissolved organic carbon (DOC) have been determined for pore waters from sediments of Middle Valley, Ocean Drilling Program Leg 139, as well as for overlying and near-bottom seawater. The DOC values in the interstitial waters are generally greater than those in the overlying water...
Resource Type:: Article
Full Text:: hydrocarbon gases. INTRODUCTION Middle Valley, a northern segment of the Juan de Fuca Ridge, is part of a

Seismic sequence stratigraphy and tectonic evolution of Southern Hydrate Ridge

Creator:: Chevallier, Johanna, Tréhu, Anne Martine, Bangs, Nathan Lawrence Bailey, Johnson, Joel E., and Meyer, H. Jack
Abstract:: This paper presents a seismic sequence and structural analysis of a high-resolution three-dimensional seismic reflection survey that was acquired in June 2000 in preparation for Ocean Drilling Program (ODP) Leg 204. The seismic data were correlated with coring and logging results from nine sites drilled in 2002 during Leg 204....
Resource Type:: Article
Full Text:: Joel E. Johnson,2,5 and H. Jack Meyer6 ABSTRACT This paper presents a seismic sequence and structural

Subsurface temperatures beneath Southern Hydrate Ridge

Creator:: Tréhu, Anne Martine
Abstract:: During Ocean Drilling Program Leg 204, 80 in situ measurements of subseafloor temperature were made; 68 of these showed good frictional pulses on insertion and extraction from the seafloor and were used to constrain the subsurface temperature. Considering uncertainties from various sources, uncertainties in the in situ temperatures are estimated...
Resource Type:: Article
Full Text:: consistent with a purely conductive temperature regime at all sites, and there is no resolvable difference in

North-south variability in the history of deformation and fluid venting across Hydrate Ridge, Cascadia margin

Creator:: Johnson, Joel E., Goldfinger, Chris, Tréhu, Anne M., Bangs, Nathan Lawrence Bailey, Torres, Marta E., and Chevallier, Johanna
Abstract:: Hydrate Ridge is an accretionary thrust ridge located on the lower slope of the central Cascadia convergent margin. Structural mapping based on two-dimensional and three-dimensional multichannel seismic reflection profiles and gridded bathymetry coupled with deep-towed sidescan sonar data and Ocean Drilling Program (ODP) biostratigraphy suggests that seafloor fluid venting patterns...
Resource Type:: Article
Full Text:: a minor focused occurrence of authigenic carbonate at SHR. The older stratigraphy exposed at the

Leg 202 synthesis: Southeast Pacific paleoceangraphy

Creator:: Tiedemann, Ralf and Mix, Alan C.
Abstract:: Ocean Drilling Program (ODP) Leg 202 has opened a new window into understanding late Paleogene and Neogene global environmental change by providing high-quality sediment sequences from a previously unsampled region, the eastern South Pacific. Eleven sites (1232– 1242) that record variations on timescales ranging from decades to tens of millions...
Resource Type:: Article
Full Text:: and Alan Mix3 ABSTRACT Ocean Drilling Program (ODP) Leg 202 has opened a new window into

Near-offset vertical seismic experiments during leg 204

Creator:: Tréhu, Anne Martine, Bangs, Nathan Lawrence Bailey, and Guerin, Gilles
Abstract:: Three successful vertical seismic profiles (VSPs) were acquired during Ocean Drilling Program (ODP) Leg 204 at South Hydrate Ridge. The data confirm earlier results from ocean bottom seismometer data and analysis of moveout from common midpoint reflection data that the average velocity between the seafloor and the bottom-simulating reflector (BSR)...
Resource Type:: Article
Full Text:: controlled. The only LVZ resolvable from traveltime analysis of the VSP data is associ- ated with Horizon A

ScholarsArchive@OSU

A new species of western Atlantic lizardfish (Teleostei: Synodontidae: Synodus) and resurrection of Synodus bondi Fowler, 1939, as a valid species from the Caribbean with redescriptions of S. bondi, S. foetens (Linnaeus, 1766), and S. intermedius (Agassiz, 1829)

Geological and geochemical contraints on the isotopic composition of interstitial waters from the Hydrate Ridge region, Cascadia Continental margin

Leg 204 synthesis : gas hydrate distribution and dynamics in the Central Cascadia accretionary complex

Organic matter and carbon isotope composition of carbonate nodules and associated sediments from middle valley, leg 139

Dissolved organic carbon in interstitial waters from sediments of Middle Valley, leg 139

Seismic sequence stratigraphy and tectonic evolution of Southern Hydrate Ridge

Subsurface temperatures beneath Southern Hydrate Ridge

North-south variability in the history of deformation and fluid venting across Hydrate Ridge, Cascadia margin

Leg 202 synthesis: Southeast Pacific paleoceangraphy

Near-offset vertical seismic experiments during leg 204

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