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Filtering by: Subject Geology, Structural -- Hydrate Ridge

Seismic sequence stratigraphy and tectonic evolution of southern hydrate ridge

Creator:

Chevallier, Johanna

Abstract:

A 3D seismic volume was acquired summer 2000 over the southern end of Hydrate Ridge (FIR), an anomalously shallow ridge 100 km offshore Newport, Oregon. The survey followed a succession of scientific expeditions aimed at studying the gas hydrates present in the shallow subsurface that gave the name to the...

Resource Type:

Masters Thesis

Full Text:

. 2. GEOLOGIC SETTING OF HYDRATE RIDGE The geology of the Cascadia convergent margin of Oregon and
Deformation, fluid venting, and slope failure at an active margin gas hydrate province, Hydrate Ridge Cascadia accretionary wedge

Creator:

Johnson, Joel E.

Abstract:

During the last 15 years, numerous geophysical surveys and geological sampling and coring expeditions have helped to characterize the tectonic setting, subsurface stratigraphy, and gas hydrate occurrence and abundance within the region of the accretionary wedge surrounding Hydrate Ridge. Because of these investigations, Hydrate Ridge has developed as an international...

Resource Type:

Dissertation
Tectonic and volcanic structures of the southern flank of Axial Volcano, Juan de Fuca Ridge : results from a SeaMARC I sidescan sonar survey

Creator:

Appelgate, T. Bruce

Abstract:

A 5km swath-width SeaMARC I sidescan sonar survey, conducted over the zone of overlap between the southern rift zone of Axial Volcano and the northern tip of the Vance spreading segment on the Juan de Fuca Ridge (between 45°24'N and 45°50'N latitude), was analyzed to locate the present position of...

Resource Type:

Masters Thesis