Cruise summary report
Cruise Info. | |
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Ship name (ship code) | RV Farnella (74AE) |
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Cruise identifier | 4/85 |
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Cruise period | 1985-11-04 — 1985-12-03 |
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Status | Completed |
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Port of departure | San Juan, Puerto Rico |
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Port of return | San Juan, Puerto Rico |
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Purpose | Research |
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Objectives | Second year of a six-year co-operative research programme between the United States Geological Survey (USGS) and IOS to survey the exclusive economic zone (EEZ).
GLORIA sonar coverage of US EEZs in the Gulf of Mexico and off Puerto Rico (also part of Cayman Trough). Also, single channel seismic reflection profiles with 80 or 160 cubic inch airgun, 3.5kHz high resolution profiles and 10kHz narrow beam echo-sounding profiles recorded, along with continuous magnetic anomaly profiles.
Northern edge of the EEZ which is the southern edge of the Nares Abyssal Plain. The area is geologically and morphologically less complicated. Near ideal sound propagation conditions. Routine GLORIA surveying |
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Chief scientist | Douglas G Masson (Institute of Oceanographic Sciences Wormley Laboratory), Kathy Scanlon (United States Geological Survey Center for Coastal and Marine Geology) |
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Project | GLORIA studies of the Exclusive Economic Zone (EEZ) |
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Coordinating body | USGS and IOS |
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Cruise report | (0.59 MB) |
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Ocean/sea areas | |
General | North West Atlantic Ocean (limit 40W) Caribbean Sea Gulf of Mexico |
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Specific | Gulf of Mexico and off Puerto Rico |
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Track charts | (0.10 MB) |
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Measurements | |
Geology and geophysics | |
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Single-beam echosounding | Quantity: number of surveys = 1 Description: 10kHz precision echo sounder |
Long/short range side scan sonar | Quantity: number of surveys = 1 Description: 3.5kHz high resolution profiler |
Single channel seismic reflection | Quantity: number of surveys = 1 Description: GLORIA profiler and seismic reflection profiler were used. |
Magnetic measurements | Quantity: number of surveys = 1 Description: magnetometer |