USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1985-039-FA

Other ID: 85 Leg 4; FRNL 85-4

Status: Completed

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

Funding Program(s):

Location: EEZ of Puerto Rico and the U.S. Virgin Islands, United States, Caribbean Sea, North America, North Atlantic;

Principal Investigator(s): Kathryn Scanlon Catanach

Affiliate Investigator(s): Doug Masson - IOS

Information Specialist(s):

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: The purpose of this cruise was to map the entire ocean floor of the EEZ of Puerto Rico and the U.S. Virgin Islands.

Vehicle(s):

Start Date: 1985-11-04

Start Port/Location: San Juan, Puerto Rico

End Date: 1985-12-03

End Port/Location: San Juan, Puerto Rico

Equipment Used: GLORIA sidescan, Air gun, Single channel hydrophone, Marine magnetometer, 3.5 kHz, 10 kHz Bathymetry, ABC navigation system, Transit GPS, Dead reckoning

Information to be Derived: Sea floor map;

Summary of Activity and Data Gathered: The GLORIA sidescan sonar data are of excellent quality and complete coverage of the EEZ area was obtained. No down-time was experienced by GLORIA. The airgun, 10 kHz echo sounder and magnetic data are also of high quality with only a few hours of airgun data lost because of technical problems. The 3.5 kHz echo sounder records vary in quality from good to very noisy. This cruise was made scientifically successful and most enjoyable by the cooperation and competence of the ship's officers and crew and our multinational scientific staff.

Staff: Dann Blackwood, Christopher F. Polloni, Kathryn Scanlon Catanach

Affiliate Staff:
Doug Masson - co-Ch. Sci.
IOS; Bob Halley - watchstander
USGS-Denver; Juan Trias - watchstander
DNR-PR; Rafael Rodriguez - watchstander
Nov. 4-15
USGS-SJ; Elsa Hernandez - watchstander
DR; Malcolm Harris - GLORIA engineer
IOS; Jon Campbell - GLORIA engineer
IOS; Eric Darlington - GLORIA engineer
IOS; Alan Gray - airgun tech.
IOS; Gareth Knight - navigation
RVS

Notes: This cruise was carried out jointly by the U.S. Geological Survey (USGS) and the British Institute of Oceanographic Sciences (IOS). Personnel from the Geological survey of the Dominican Republic (DR), Puerto Rico's Department of Natural Resources (DNR) and Great Britain's Research Vessel Services (RVS) also participated. Scanlon (USGS) and Masson (IOS) shared the duties of Chief Scientist while Harris (IOS) was designated as Party Chief. Original Center People field contained: Kathy Scanlon - co-Ch. Sci.; Dann Blackwood - photographer; Chris Polloni - watchstander, Nov. 15 - Dec. 3.
Project = GLORIA Survey 1985, GLORIA Survey 1985

Location Map:

Platform(s):

photo of Farnella
Farnella

Publications

Scanlon, K.M., 1986, Magnetic and bathymetric data from R/V FARNELLA Cruise FRNL 85-4 in the Puerto Rico and U.S. Virgin Islands Exclusive Economic Zone: U.S. Geological Survey Open-File Report 86-399, 3 p. URL: http://pubs.er.usgs.gov/publication/ofr86399, download PDF.

Scanlon, K.M., 1989, Seismic-reflection and echo-sounder data from R/V FARNELLA Cruise FRNL85-4 in the Puerto Rico and U.S. Virgin Islands Exclusive Economic Zone: U.S. Geological Survey Open-File Report 90-38, 4 p. URL: http://pubs.er.usgs.gov/usgspubs/ofr/ofr9038, download PDF.

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/.

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
GLORIA sidescan --- Sidescan
1985-039-FA-SO-001 ( Digital tape(s) of NV-MG-BT, NV-GLORIA PASSES, PROCESSED GLORIA, P.R. COMPOSITE, )
1985-039-FA-SO-002 ( CD ROM disk of GLORIA ATLANTIC GEOTIFF, GLORIA PUERTO RICO GEOTIFF, )
Air gun --- Air Gun / Water Gun
Single channel hydrophone --- Air Gun / Water Gun
Boomer
Bubble Gun
Sparker
Sub Bottom Profiler
1985-039-FA-SE-003 ( analog tape of seismic data)
1985-039-FA-SE-001 ( Collection of paper record displays of seismic data( AIR) for lines )
1985-039-FA-SE-002 ( microfilm of )
Marine magnetometer --- Magnetics
1985-039-FA-GP-001 ( Digital tape(s) of NV-MG-BT, NV-GLORIA PASSES, PROCESSED GLORIA, P.R. COMPOSITE, )
3.5 kHz --- Sub Bottom Profiler
10 kHz Bathymetry --- Single Beam
1985-039-FA-BA-001 ( Digital tape(s) of NV-MG-BT, NV-GLORIA PASSES, PROCESSED GLORIA, P.R. COMPOSITE, )
ABC navigation system --- Navigation
1985-039-FA-LN-001 ( Digital tape(s) of NV-MG-BT, NV-GLORIA PASSES, PROCESSED GLORIA, P.R. COMPOSITE, )
1985-039-FA-SE-004 ( Digital tape(s) of NV-MG-BT, NV-GLORIA PASSES, PROCESSED GLORIA, P.R. COMPOSITE, )
Transit GPS --- Navigation
Dead reckoning --- Navigation