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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:: DYNAMICS IN THE CENTRAL CASCADIA ACCRETIONARY COMPLEX Tréhu, A.M., Bohrmann, G., Torres, M.E., and

Creator:: Torres, Marta E., Teichert, B. M. A., Tréhu, Anne Martine, Borowski, W., and Tomaru, H.
Abstract:: Drilling in the Cascadia accretionary complex enable us to evaluate the contribution of dehydration reactions and gas hydrate dissociation to pore water freshening. The observed freshening with depth and distance from the prism toe is consistent with enhanced conversion of smectite to illite, driven by increase in temperature and age...
Resource Type:: Article
Full Text:: . Teichert,2 A. M. Tréhu,1 W. Borowski,3 and H. Tomaru4,5 Received 6 August 2004; revised 13 September 2004

Creator:: Tréhu, Anne Martine, Flemings, Peter B., Bangs, Nathan Lawrence Bailey, Chevallier, Johanna, Gracia, Eulalia, Johnson, Joel E., Liu, C. S., Liu, Xiaoli, Riedel, Michael, and Torres, Marta E.
Abstract:: Log and core data document gas saturations as high as 90% in a coarse-grained turbidite sequence beneath the gas hydrate stability zone (GHSZ) at south Hydrate Ridge, in the Cascadia accretionary complex. The geometry of this gas-saturated bed is defined by a strong, negative-polarity reflection in 3D seismic data. Because...
Resource Type:: Article
Full Text:: south Hydrate Ridge Anne M. Tréhu,1 Peter B. Flemings,2 Nathan L. Bangs,3 Johanna Chevallier,1

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