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Alternate Leg ID: 83-1 Area of Operations: Isabela, Guayanilla, Guanica, Puerto Rico, United States, Caribbean Sea, North America, North Atlantic Dates: April 07, 1983 to April 17, 1983 Objectives: 1) Seismic survey of an apparent sand deposit offshore Isabela, Puerto Rico; 2) seismic survey of submarine canyons offshore Guayanilla, Puerto Rico; and 3) surface sediment sampling between Guanica and Guayanilla, Puerto Rico. Type of Activity: Seismic profiling Information to be derived: Sand deposit evaluation Summary: The apparent "sand deposit" seems to be a very thin layer of sand over certain areas and small scattered sand pockets. 135 sediment samples were collected in the Guayanilla-Guanica-Ponce area. Seismic lines: 40 km. USGS Project Number: PR CO-OP Contact: Juan Trias () | Map for Area of Operations :
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