Field Activity 1971-003-FA

Identifier 1971-003-FA
Alternate names UGEO Leg 3; CORPUS 17/18, U-03-71-CB, U0171CB
Purpose Scientific objectives of this cruise leg were: (1) to investigate the zone of juncture between the south flank of the Antillean ridge and the north edge of the Venezuelan Basin along the depressed Muertos Trough; (2) to examine structural deformation in the Anegada Trough where the Greater Antilles are joined by the Lesser Antilles and Aves Swell; and (3) to study the northeastern sector of the Puetro Rico Trench where predicted relative plate motion should be transitional between westward underthrusting of the Lesser Antilles and east-west strike-slip motion north of the Greater Antilles.
Location eastern Greater Antilles, northeast Caribbean Sea, North America, North Atlantic;
Summary Sub-bottom acoustic profiles were obtained over about 5,840 km of track line in the project area. One dredging station was occupied and three sonobuoy refraction profiles made. Total geophysical track miles: 3,028 (5,840 km); Time Log: #17a; Seismic Log: #17b; Gravity Log: #17c; Bathymetry Log: #17d; and Daily Log: #17e.
Comments Data holdings at PCMSC. Original Center People field contained: Louis Garrison - Chief Scientist, James Trumbull, Mike Marlow, Ray Martin, Allen Cooper, Robert Immel, Bob Patrick, Martin Hijmans, Trevor Hill. Project = International Decade of Ocean Exploration (IDOE), International Decade of Ocean Exploration (IDOE)
Related activities
1971-001-FA: Cruise legs
Platform
United Geo I
Length 125 feet.
Itinerary
Start San Juan, Puerto Rico 1971-07-15
End St. Thomas, U.S. Virgin Islands 1971-08-04
Days in the field 19
Bounds
West -68.9967
East -58.5853
North 30.2871
South 15.375

Personnel

Organization
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
Principal investigators Louis E. Garrison
Crew members
Louis E. Garrison
Scientist, Staff
Martin, Ray G., Jr.
Scientist, Staff
James Trumbull
Scientist, Staff
Affiliate staff PMG - Mike Marlow, Allan Cooper, Robert Immel, Bob Patrick, Martin Hijmans, Trevor Hill

Data types and categories

Data category: Electro-Magnetic, Location-Elevation, Sampling, Seismics
Data type: Gravity, Magnetics, Navigation, Biology, Geology, Sparker, Sub Bottom Profiler

Documents: Notes and log books

Name Survey Equipment Description
Cruise report (document not focused on specific equipment) Minimal information. Does indicate the other various logs maintained.

Equipment used

Equipment Usage description Data types Datasets
Sparker Sparker (no data reported)
ITT 4007 satellite navigation Navigation 2
Magnetometer (wh) Magnetics 2
Gravity meter (wh) Gravity 1
Decca radar system Navigation (no data reported)
3.5 kHz Sub Bottom Profiler 2
Single channel hydrophone Air Gun / Water Gun, Boomer, Bubble Gun, Sparker, Sub Bottom Profiler 3
Dredge Biology, Geology (no data reported)

Datasets

Datasets produced in this activity

Dataset name Equipment Description Dataset contact
1971-003-FA-LN-001 ITT 4007 satellite navigation Navigation data in InfoBank Nancy K. Soderberg
1971-003-FA-LN-002 ITT 4007 satellite navigation Zip file of trackchart maps Nancy K. Soderberg
1971-003-FA-GP-001 Magnetometer (wh) Gravity and magnetic data in InfoBank Nancy K. Soderberg
NGDC MGD77 data Magnetometer (wh) Linda P McCarthy
NGDC MGD77 data Gravity meter (wh) Linda P McCarthy
1971-003-FA-BA-001 3.5 kHz Bathymetric data in InfoBank Nancy K. Soderberg
NGDC MGD77 data 3.5 kHz Linda P McCarthy
1971-003-FA-SE-001 Single channel hydrophone analog tape of seismic data Nancy K. Soderberg
1971-003-FA-SE-002 Single channel hydrophone zip archive of scanned record sections for line 35-46 Nancy K. Soderberg
1971-003-FA-SE-003 Single channel hydrophone zip archive of scanned records sections used for publication (includes lines 1-50) Nancy K. Soderberg

Publications

Samples collected during this field activity