Field Activity 1990-001-FA

Identifier 1990-001-FA
Alternate names Leg 1, F-90-3
Purpose Study the sedimentology, depositional process, acoustic character, and pore-water chemistry of sediments on the Mississippi Fan and along the base of the Florida Escarpment.
Location Mississippi Fan, Florida Escarpment, eastern Gulf of Mexico, United States, North America, North Atlantic;
Summary Gravity trackline - 1; SeaMARC - 3466 sq. km; 4.5 kHz - 950 km; 3.5 kHz (from Leg 1 and Leg 2) - 2280 km.
Comments Project = MS Fan Ground Truth Program, MS Fan Ground Truth Program
230 feet
Start Tampa, FL 1990-03-25
End Tampa, FL 1990-04-08
Days in the field 15
West -87
East -84.5
North 27
South 26


384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
Principal investigators David C TwichellWilliam C Schwab
Crew members
William W Danforth
Scientist, Staff
David C Twichell
Scientist, Staff
William C Schwab
Scientist, Staff
Thomas F O'Brien
Scientist, Staff
David H Mason
Scientist, Staff
Barry J Irwin
Scientist, Staff
Lubinski, Dave
Scientist, Staff
Affiliate staff L. Bader - USGS PMG, M. Hammer - USGS PMG, L. Kooker - USGS PMG, N. Kenyon - IOS, T. Crook - WHOI, T. Dettweiler - U.S. Navy, M. Williamson - IDSS, K. Redman - IDSS, N. Lesnikowski - IDSS, J. McDowell - IDSS

Data types and categories

Data category: Sonar, Seismics, Location-Elevation
Data type: Sidescan, Sub Bottom Profiler, Navigation, Transects

Documents: Notes and log books

Name Description
Cruise report Chief Scientists' cruise report including personnel, equipment, objective, cruise narrative, tabulated information, transponder net locations, area maps, sidescan sonar trackmap for first leg F-90-3 (FA 90001) and core locations from second leg F-90-4 (FA 90003).
Navigation log Coordinates for transponder navigation in support of SeaMARC and 3.5 kHz surveys and DAFE event log for Leg 1. SeaMARC start and end link coordinates.
Sidescan log - Seismic log SeaMarc seismic log with equipment configuration, line numbers and start and end times, course, and speed. Includes information about transponder net.
Event log Menlo Park printout of DAFE event log containing line starts and ends, equipment configuration, and time on and off.
Cruise log SeaMarc Technician's log with equipment configuration, line numbers and start and end times, navigation and data acquisition notes
Q-Mips log Q-Mips log containing line numbers, start and end dates and times, and filenames.
VHS log VHS tape log containing data acquisition, equipment configuration for subbottom and navigation systems, and acquisition notes.
Contractor's log Contractor's log describing SeaMarc performance and data acquisition notes.

Equipment used

Equipment Usage description Data types Datasets
SeaMARC sidescan sonar system Sidescan 1
4.5 kHz Sub Bottom Profiler 4
Benthos acoustic navigation system Navigation (no data reported)
Q-MIPS sidescan sonar system Sidescan (no data reported)
3.5 kHz Sub Bottom Profiler (no data reported)
Loran-C Navigation 1
GPS (wh) Navigation (no data reported)
Benthos 7000 Navigation, Transects (no data reported)


Datasets produced in this activity

Dataset name Equipment Description Dataset contact
1990-001-FA-SO-001 SeaMARC sidescan sonar system Digital tape(s) of NV, SSS-SEAMARC, Nancy K. Soderberg
1990-001-FA-SE-001 4.5 kHz Collection of paper record displays of seismic data( 4.5K) for lines Nancy K. Soderberg
1990-001-FA-SE-002 4.5 kHz VHS digital tapes for line(s) 4, 4, 4, 5,6, 6, 6, 6, 6, TRANSIT,7, 7, 7, 7,8, 8, 8, 8, 9, 9, 10, 10, 10, 10-2, 10-3, 10-3, 10-4, 10-4, 10-4, 11, 11, 12, 12, 12, 12, 12, 12, 12,TRNST,13, 13, 14, 14, 14, 14, 14, 15, 15, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18,19, 19, 19, 19, 19, 19,TRNST,20, 20, 20, 21, 21, 21, 21,22, 22, 22, 22, 23, 23, 23, 23, TRNST,24, 24, Nancy K. Soderberg
1990-001-FA-SE-003 4.5 kHz microfilm of Nancy K. Soderberg
Bathymetry GIS data 4.5 kHz Linda P McCarthy
1990-001-FA-LN-001-01 Loran-C Navigation data recovered from 9 track tape Nancy K. Soderberg


Samples collected during this field activity