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Summary for Field Activity Number 1987-022-FA

Alternate Leg ID: STRL S4-87-AFR

Area of Operations: Canary Islands, Western Sahara, Mauritania, Senegal, Africa, North Atlantic

Dates: June 12, 1987 to July 17, 1987

Objectives: Collect gravity and bathymetric data offshore W. Sahara, Mauritania and Senegal on a 3 nm grid with internal consistency +/-3 mgals. The GE 810 correlation sonar was tested around Gran Canaria during the first part of the cruise.

Type of Activity:

Information to be derived:

Summary: Departed Las Palmas, Gran Canaria 12 June 1987 to test General Electric 810 Correlation Sonar along the coast of Western Sahara. On 19 June returned to Las Palmas to offload test personnel and resumed survey along offshore Western Sahara. Survey continued off Mauritania and Senegal. The 810 Sonar/MK 29 Gyro system worked flawlessly. Most lines were cut short on the eastern end due to shoals.

USGS Project Number: DMA GRAV

Contact: George Driscoll (

InfoBank: uses the identifier S-4-87-AF. Visit this site for more information.

Map for Area of Operations :

Map of field activity boundary.

Platform Info:
photo of STARELLA

The following materials for this field activity are available in the Information Archives:

Paper seismic/sidescan bottom profiles:

Inventory #LinesFolderStart TimeEnd TimeProfile TypeRemarks
0486319-21,23-24,34,4700101:37 06/13/198716:30 06/23/1987 12K- 47,68,73-77
048641-18,22,23,25,2700212:46 06/27/198718:58 07/16/1987 12K- 913,991-998,99099997
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