Other ID: PE-04-49; P1-04-GM
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: Atwater Valley, Mississippi Canyon, Gulf of Mexico, North America, North Atlantic;
Principal Investigator(s): Deborah Hutchinson
Affiliate Investigator(s): Rob Evans - WHOI
Information Specialist(s): Deborah Hutchinson
Data Type(s): Electro-Magnetic: Resistivity, Imagery: Video, Sonar: Single Beam, Location-Elevation: Navigation
Scientific Purpose/Goals: Collect bottom camera and electrical resistivity data across two possible gas hydrate mounds in the Mississippi Canyon, northern Gulf of Mexico, as part of a site survey for the JIP/DOE Gas Hydrates Drilling Program.
Start Date: 2004-06-20
Start Port/Location: Cocodrie, LA
End Date: 2004-06-23
End Port/Location: Cocodrie, LA
Equipment Used: Resistivity Profiler, Video camera - deep sea, Echosounder, DGPS
Information to be Derived:
Summary of Activity and Data Gathered: This was a successful cruise with 5973 bottom images collected on four tows; the EM data fulfilled the objective of showing proof of concept for the system (17 km on 9 lines).
Staff: John Evans, Lauren Gilbert
Notes: This is a follow-up cruise to G1-03-GM (WH field activity 03001). This cruise is only at the Atwater Valley site in the Mississippi Canyon. The bottom camera work is the USGS portion (contracted to WHOI). The bottom resistivity is not USGS, but is part of the larger gas hydrates program in the northern Gulf of Mexico. Original Center People field contained: Lauren Gilbert - watch; John Evans - watch, camera navigation.
Crusius, J., Bratton, John, and Charette, Matt, 2005, Putting radon to work; identifying coastal ground-water discharge sites: 2 URL: http://pubs.usgs.gov/of/2004/1381/.
Ellis, M., Evans, R.L., Hutchinson, D., Hart, P., Gardner, J., and Hagen, R., 2008, Electromagnetic surveying of seafloor mounds in the northern Gulf of Mexico: Marine and Petroleum Geology, v. 25 no. 9, doi: 10.1016/j.marpetgeo.2007.12.006.
Evans, J., Fornari, Dan, Gilbert, Lauren, Boyle, Mike, Dougherty, Jennifer, and Hutchinson, Deborah R., 2005, Archive of raw bottom photographs collected during Cruise P1-04-GM, Northern Gulf of Mexico, 21-24 June, 2004: URL: http://pubs.usgs.gov/of/2004/1285/.
Ruppel, C., Boswell, R., and Jones, E., 2008, Scientific results from Gulf of Mexico Gas Hydrates Joint Industry Project Leg 1 drilling; introduction and overview: Marine and Petroleum Geology, v. 25 no. 9, doi: 10.1016/j.marpetgeo.2008.02.007.