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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:: , CASCADIA MARGIN1 Joel E. Johnson,2,3 Chris Goldfinger,3 Anne M. Tréhu,3 Nathan L.B. Bangs,4 Marta E

Creator:: Torres, Marta E., Bohrmann, Gerhard, Brown, Kevin, deAngelis, Marie, Hammond, Douglas, Klinkhammer, Gary, McManus, James, Suess, Erwin, and Trehu, Anne
Abstract:: Geophysical and biogeochemical processes associated with fluid venting from active and passive continental margins will receive significant scientific and economic attention into the next century and are of major societal relevance. An important unknown among these interrelated processes is the role played by methane gas hydrates, at and below the...
Resource Type:: Technical Report
Full Text:: McManus Erwin Suess Anne Trehu Data Report 174 Reference 99-3 College of OCEANIC & ATMOSPHERIC

Creator:: Torres, Marta E., Brown, Kevin, Collier, Robert W., deAngelis, Marie, Hammond, Douglas, McManus, James, Rehder, Gregor, and Trehu, Anne
Abstract:: A massive release of methane on the Cascadia Hydrate Ridge was documented during a ROPOS program in August 1998, consistent with previously reported observations in 1996. An extensive survey of the seafloor revealed that the seeps lie within a narrow band trending 109 degrees. This feature parallels larger mounds imaged...
Resource Type:: Technical Report

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