Index Catalog // ScholarsArchive@OSU

Variations in Gas and Water Pulses at an Arctic Seep: Fluid Sources and Methane Transport

Creator:: Hong, Wei-Li, Torres, Marta E., Portnov, A., Waage, M., Haley, B., and Lepland, A.
Abstract:: Methane fluxes into the oceans are largely dependent on the methane phase as it migrates upward through the sediments. Here we document decoupled methane transport by gaseous and aqueous phases in Storfjordrenna (offshore Svalbard) and propose a three-stage evolution model for active seepage in the region where gas hydrates are...
Resource Type:: Article
Full Text:: Set S1 Correspondence to: W.-L. Hong, wei-li.hong@ngu.no Citation: Hong, W.-L., Torres, M. E

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:: DEFORMATION AND FLUID VENTING ACROSS HYDRATE RIDGE, CASCADIA MARGIN Tréhu, A.M., Bohrmann, G., Torres, M.E

A summary of ODP leg 141 hydrogeologic, geochemical and thermal results

Creator:: Brown, K. M., Bangs, Nathan Lawrence Bailey, Froelich, Peter N., Zheng, Y., Didyk, Borys M., Prior, D., Rochford, E. L., Torres, Marta E., Kurnosov, V. B., Lindsley - Griffin, N., Osozawa, S., and Waseda, A.
Abstract:: The subduction of the oceanic spreading center at the Chile Triple Junction is marked by a substantial thermal perturbation and marked changes in the hydrogeologic and aqueous geochemical regimes in the overthrust plate. Ridge subduction substantially changes the fluid chemistry in the wedge through variably hydrating the oceanic basement, accretionary...
Resource Type:: Article
Full Text:: ,7 E.L. Rochford,7 M. Torres,8 V.B. Kurnosov,9 N. Lindsley-Griffin,10 S. Osozawa,11 and A. Waseda12

Data report : composition of clay minerals from hemiplegic sediments at Hydrate Ridge, Cascadia subduction zone

Creator:: Underwood, Michael and Torres, Marta E.
Abstract:: This report describes the results of semiquantitative analysis of clay mineral composition by X-ray diffraction. The samples consist of hemipelagic mud and mudstone cored from Hydrate Ridge during Leg 204 of the Ocean Drilling Program. We analyzed oriented aggregates of the clay-sized fractions (<2 μm) to estimate relative percentages of...
Resource Type:: Article
Full Text:: HEMIPELAGIC SEDIMENTS AT HYDRATE RIDGE, CASCADIA SUBDUCTION ZONE Tréhu, A.M., Bohrmann, G., Torres, M.E

Stable isotopes (¹⁸O/¹⁶O) and ⁸⁷Sr/⁸⁶Sr ratios in pore fluids of the Chile Triple Junction accretionary prism : implications for diagenesis and fluid migration

Creator:: Zheng, Yan, Froelich, Philip N., Torres, Marta E., and Dia, Aline N.
Abstract:: Oxygen and strontium isotopic composition of sedimentary pore fluids obtained by drilling at the Chile Triple Junction have been used to obtain information on the diagenesis and transport mechanisms of fluids. Samples were collected from three sites located on an east-west transect of the pre-collision zone (Sites 859, 860, and...
Resource Type:: Article
Full Text:: . FROELICH, M.E. TORRES, A.N. DIA - 4 - 2r 5 7 5 6 0 0 6 2 5 6 5 0 Cl ( m M ) ^ 1 ' ' ' ' I 4 0 0 4 5 0

Microbial methane generation and gas transport in shallow sediments of an accretionary complex, southern hydrate ridge (ODP Leg 204), offshore Oregon, USA

Creator:: Claypool, George E., Milkov, Alexei V., Lee, Young-Joo, Torres, Marta E., Borowski, Walter S., and Tomaru, Hitoshi
Abstract:: Sediments at the southern summit of Hydrate Ridge display two distinct modes of gas hydrate occurrence. The dominant mode is associated with active venting of gas exsolved from the accretionary prism and leads to high concentrations (15%–40% of pore space) of gas hydrate in seafloor or near-surface sediments at and...
Resource Type:: Article
Full Text:: Tréhu, A.M., Bohrmann, G., Torres, M.E., and Colwell, F.S. (Eds.) Proceedings of the Ocean Drilling

HarrisRealTimeMonitoring.pdf

Creator:: Harris, Dustin, Ummadi, Jyothir Ganesh, Thurber, Andrew R., Allau, Yvan, Verba, Circe, Colwell, Frederick, Torres, Marta E., and Koley, Dipankar
Abstract:: Sporosarcina pasteurii is known to produce calcite or biocement in the presence of urea and Ca²⁺. Herein, we report the use of novel ultramicrosensors such as pH, Ca²⁺, and redox sensors, along with a scanning electrochemical microscope (SECM), to monitor a real-time, bacteria-mediated urea hydrolysis process and subsequent changes in...
Full Text:: . Microbiol. Biotechnol., 2009, 36, 981–8. 24 T. Zhang and I. Klapper, Int. J. Nonlinear Mech., 2011, 46, 657

HongWeiLiCEOASTowardsQuantifyingTheReaction.pdf

Creator:: Hong, Wei-Li, Torres, Marta E., Kim, Ji-Hoon, Choi, Jiyoung, and Bahk, Jang-Jun
Abstract:: We present a kinetic model based upon pore water data collected from eight sites drilled during the second Ulleung Basin gas hydrate drilling expedition (UBGH2) in 2010. Three sites were drilled at locations where acoustic chimneys were identified in seismic data, and the rest were drilled on non-chimney (i.e. background)...
Full Text:: ., Torres, M. E., Kim, J. H., Choi, J., & Bahk, J. J. (2014). Towards quantifying the reaction network

Carbon cycling fed by methane seepage at the shallow Cumberland Bay, South Georgia, sub-Antarctic

Creator:: Geprägs, Patrizia, Torres, Marta E., Mau, Susan, Kasten, Sabine, Römer, Miriam, and Bohrmann, Gerhard
Abstract:: Recent studies have suggested that the marine contribution of methane from shallow regions and melting marine-terminating glaciers may have been underestimated. Here we report on methane sources and potential sinks associated with methane seeps in Cumberland Bay, South Georgia's largest fjord system. The average organic carbon content in the upper...
Resource Type:: Article
Full Text:: transition (SMT) Correspondence to: P. Gepr€ags, pgepraegs@marum.de Citation: Gepr€ags, P., M. E. Torres, S

Influence of total organic carbon deposition on the inventory of gas hydrate in the Indian continental margins

Creator:: Johnson, Joel E., Phillips, Stephen C., Torres, Marta E., Piñero, Elena, Rose, Kelly K., and Giosan, L.
Abstract:: Total organic carbon (TOC) content of marine sediments represents residual carbon, originally derived from terrestrial and marine sources, which has survived seafloor and shallow subseafloor diagenesis. Ultimately, its preservation below the sulfate reduction zone in marine sediments drives methanogenesis. Within the gas hydrate stability zone (GHSZ), methane production along continental...
Resource Type:: Article
Full Text:: ., Phillips, S. C., Torres, M. E., Piñero, E., Rose, K. K., & Giosan, L. (2014). Influence of total organic

ScholarsArchive@OSU

Variations in Gas and Water Pulses at an Arctic Seep: Fluid Sources and Methane Transport

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

A summary of ODP leg 141 hydrogeologic, geochemical and thermal results

Data report : composition of clay minerals from hemiplegic sediments at Hydrate Ridge, Cascadia subduction zone

Stable isotopes (¹⁸O/¹⁶O) and ⁸⁷Sr/⁸⁶Sr ratios in pore fluids of the Chile Triple Junction accretionary prism : implications for diagenesis and fluid migration

Microbial methane generation and gas transport in shallow sediments of an accretionary complex, southern hydrate ridge (ODP Leg 204), offshore Oregon, USA

HarrisRealTimeMonitoring.pdf

HongWeiLiCEOASTowardsQuantifyingTheReaction.pdf

Carbon cycling fed by methane seepage at the shallow Cumberland Bay, South Georgia, sub-Antarctic

Influence of total organic carbon deposition on the inventory of gas hydrate in the Indian continental margins

Limit your search

Academic Affiliation

Creator

Date

Decade

File Format

Language

License

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search