Other ID: OC130
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: Lydonia Canyon, Oceanographer Canyon, Mud Patch, Lease Block 312, North Atlantic Continental Slope, United States, North America, North Atlantic;
Principal Investigator(s): Bradford Butman
Data Type(s): Location-Elevation: Navigation, Sampling: Biology, Sampling: Geology, Sonar: Single Beam, Time Series: Mooring (physical oceanography)
Scientific Purpose/Goals: 1. Recover 2 subsurface moorings and 1 bottom tripod system deployed in Lydonia Canyon. This recovery completed the 2-year field measurement program in Lydonia and Oceanographer Canyons. 2. Recover 3 sediment-trap moorings deployed near Mobil Block 312. This array was designed to measure the resuspension and transport of drill muds discharged during drilling. 3. Deploy 5 subsurface moorings on the continental slope. This array initiates a large study of currents and sediment movement along the outer shelf, continental slope, and upper rise. 4. Conduct a detailed hydrographic survey around Lydonia and Oceanographer Canyons and along the continental slope in support of objectives 1 and 3. 5. Obtain hydrostatically damped cores in the Mud Patch, Lydonia Canyon, and around Lease Block 312 to document the vertical distribution of drill muds in surficial sediments. 6. Obtain surface grab samples around Lydonia and Oceanographer Canyons to refine surface-sediment texture map. 7. Recover 5 surface marker buoys deployed to mark instrument sites.
Start Date: 1982-11-09
Start Port/Location: Woods Hole, MA
End Date: 1982-11-16
End Port/Location: Woods Hole, MA
Equipment Used: Grab sampler, Corer - gravity, Mooring tripod, Northstar 6000 LORAN-C, 12 kHz, Bottom tripod
Information to be Derived:
Summary of Activity and Data Gathered: All work for OC 130 was completed. Deployed moorings: 6 (#266, 267, 268, 269, 270, and 271). Recovered moorings: 7 (#258, 259, 260, 261, 262, 264, and 266). Recovered buoys: (A, C, E, P, R, and V). CTDs: 33; XBTs: 41; Surface salinity samples: 68; Surface nutrient samples: 32; Suspended sediment samples: 16; Oxygen samples: 12; VanVeen grab samples: 10; Hydraulically damped cores: 1; Bathymetry.
Staff: Michael Bothner, Bradford Butman, Mary E. Hastings, John Larson, Carol M. Parmenter, Richard Rendigs, William J. Strahle, Marlene Noble
Notes: Original Center People field contained: Brad Butman, Mike Bothner, John Larson, Frank Musialowski, Marlene Noble, Carol Parmenter, Michael Pickering, Richard Rendigs, Mary Polly Shoukimas, William Strahle.