USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1987-004-FA

Other ID: 87-1, Leg 1; F1-87-EC

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s):

Location: Northern Blake Plateau, Blake Outer Ridge, Cape Hatteras, outer continental slope and rise, Georgia, South Carolina, North Carolina, United States EEZ, North America, North Atlantic;

Principal Investigator(s): David Twichell, Peter Popenoe

Affiliate Investigator(s): John B. Wilson - IOS, Godalming, UK

Information Specialist(s): Sarah Griscom

Data Type(s): Sonar: Sidescan, Seismics: Air Gun / Water Gun, Seismics: Boomer, Seismics: Bubble Gun, Seismics: Sparker, Seismics: Sub Bottom Profiler, Electro-Magnetic: Magnetics, Sonar: Single Beam, Location-Elevation: Navigation

Scientific Purpose/Goals: This cruise was the first leg of the joint USGS/IOS GLORIA Survey of the East Coast Atlantic Margin Exclusive Economic Zone (EEZ). The cruise covered a portion of the EEZ that included the northern Blake Plateau and the continental slope and rise off Georgia, South Carolina, and North Carolina, from the 400 isobath to the 200 mile EEZ boundary. The British Institute of Oceanographic Sciences' (IOS) long-range sidescan sonar system (GLORIA) was contracted by the USGS to produce a reconnaissance-type map of the sea floor within the U.S. EEZ of the conterminous United States, Hawaii and Puerto Rico. The survey is being done to provide a basic understanding of the EEZ, including resource potential and geologic hazards.

Vehicle(s):

Start Date: 1987-02-02

Start Port/Location: Jacksonville, FL

End Date: 1987-02-27

End Port/Location: Norfolk, VA

Equipment Used: GLORIA sidescan, Air gun, Single channel hydrophone, 3.5 kHz, 10 kHz Bathymetry, ABC navigation system, Geometrics G-856 magnetometer, Northstar 6000 LORAN-C, Racal/Decca Hyperfix, Magnavox satellite positioning system

Information to be Derived: Sea floor map; Morphology;

Summary of Activity and Data Gathered: GLORIA sidescan sonar: 6371 km (3440 nautical miles); Airgun: 6371 km (3440 nm); 3.5 kHz: 7408 km (4000 nm); 10 kHz: 6482 km (3500 nm); Magnetics: 5556 km (3000 nm).

Staff: David Twichell, Peter Popenoe, Sarah Griscom

Affiliate Staff:
USGS-Reston: Simon Cargill; USGS PMG: Larry Kooker
Rob Wertz; IOS: John Wilson
Eric Darlington
Andy Harris
Colin Jacobs
Steve Whittle; RVS: Kay Potter

Notes:
Project = East Coast GLORIA survey, East Coast GLORIA survey

Location Map:

Platform(s):

photo of Farnella
Farnella

Publications

Chaytor, J.D., Twichell, D.C., ten Brink, U.S., Buczkowski, B.J. and Andrews, B.D., 2007, Revisiting submarine mass movements along the U.S. Atlantic continental margin; implications for tsunami hazards, in V. Lykousis, D. Sakellariou, and J. Locat, eds., Submarine mass movements and their consequences: Springer, Netherlands, .

Chaytor, J.D., ten Brink, Uri S., Solow, Andrew R., and Andrews, Brian D., 2009, Size distribution of submarine landslides along the U.S. Atlantic margin: Marine Geology, v. 264 no. 1-2, doi: 10.1016/j.margeo.2008.08.007.

Geist, E.L., Lynett, Patrick J., and Chaytor, Jason D., 2009, Hydrodynamic modeling of tsunamis from the Currituck landslide: Marine Geology, v. 264 no. 1-2, doi: 10.1016/j.margeo.2008.09.005.

Lubinski, D., Hughes-Clarke, John, Dillon, William, O'Leary, Dennis, Popenoe, Peter, Robb, James, and Schmuck, Eric, 1990, Magnetic and bathymetric data from R/V FARNELLA Cruises FRNL87-1, 87-2, 87-3, 87-4, and 87-5 in the U.S. Atlantic Margin EEZ, southern Blake Escarpment, and Nova Scotia continental rise: U.S. Geological Survey Open-File Report 90-254, 11 p. URL: http://pubs.er.usgs.gov/publication/ofr90254, download PDF.

Popenoe, P., and Manheim, F.T., 2001, Origin and history of the Charleston Bump--geological formations, currents, bottom conditions, and their relationship to Wreckfish habitats on the Blake Plateau, in Sedberry, G.R., ed., Island in the Stream--Oceanography and Fisheries of the Charleston Bump: American Fisheries Society Symposium, v. 25.

ten Brink, U.S., Barkan, R., Andrews, B.D., and Chaytor, J.D., 2009, Size distributions and failure initiation of submarine and subaerial landslides: Earth and Planetary Science Letters, v. 287 no. 1-2, doi: 10.1016/j.epsl.2009.07.031.

Twichell, D.C., Paskevich, V., Delorey, C.,, 1998, GLORIA sidescan-sonar field data and navigation data collected off Puerto Rico in 1985 and the eastern United States in 1987: U.S. Geological Survey Open-File Report 98-619, CD-ROM, URL: http://pubs.usgs.gov/of/of98-619/.

Twichell, D.C., Chaytor, Jason D., ten Brink, Uri S., and Buczkowski, Brian, 2009, Morphology of late Quaternary submarine landslides along the U.S. Atlantic continental margin: Marine Geology, v. 264 no. 1-2, doi: 10.1016/j.margeo.2009.01.009.

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
GLORIA sidescan --- Sidescan
1987-004-FA-SO-002 ( CD ROM disk of GLORIA/MOSAIC 1-10;TIF,*, GLORIA/MOSAIC 11-23;TIF,*, GLORIA IMAGES, GLORIA ATLANTIC GEOTIFF, GLORIA US EAST COAST GEOTIFF, GLORIA IMAGES, )
1987-004-FA-SO-001 ( Digital tape(s) of RAW GLORIA, NV-BT-MG, SEIS, PROCESSED GLORIA, )
Air gun --- Air Gun / Water Gun
Single channel hydrophone --- Air Gun / Water Gun
Boomer
Bubble Gun
Sparker
Sub Bottom Profiler
1987-004-FA-SE-002 ( microfilm of )
1987-004-FA-SE-003-02 ( Raw SEGY seismic data)
1987-004-FA-SE-003-01 ( Tape list)
1987-004-FA-SE-001 ( Collection of paper record displays of seismic data( AIR) for lines )
3.5 kHz --- Sub Bottom Profiler
10 kHz Bathymetry --- Single Beam
1987-004-FA-BA-001 ( Digital tape(s) of RAW GLORIA, NV-BT-MG, SEIS, PROCESSED GLORIA, )
1987-004-FA-BA-002 ( CD ROM disk of GLORIA/MOSAIC 1-10;TIF,*, GLORIA/MOSAIC 11-23;TIF,*, GLORIA IMAGES, GLORIA ATLANTIC GEOTIFF, GLORIA US EAST COAST GEOTIFF, GLORIA IMAGES, )
ABC navigation system --- Navigation
1987-004-FA-LN-001-01 ( Trackmap for US East Coast FARNELLA cruises 87-1 (FA 87004), 87-2 (FA 87008), 87-3 (FA 87010), 87-4 (FA 87015), and 87-5 (FA 87018).)
1987-004-FA-LN-002-01 ( Two-minute navigation fixes with water depth and magnetics data.)
1987-004-FA-LN-001-02 ( Trackline map colored by leg for FARNELLA cruises 87-1, 87-2, 87-3, 87-4, and 87-5.)
Geometrics G-856 magnetometer --- Magnetics
1987-004-FA-GP-001 ( Digital tape(s) of RAW GLORIA, NV-BT-MG, SEIS, PROCESSED GLORIA, )
Northstar 6000 LORAN-C --- Navigation
Racal/Decca Hyperfix --- Navigation
Magnavox satellite positioning system --- Navigation