Summary for Field Activity Number 1980-003-FA

Area of Operations: insular shelf off Rio de la Plata, Puerto Rico, United States, North America, North Atlantic

Dates: January 17, 1980 to January 18, 1980

Objectives: Second sampling off Rio de la Plata after passage of Hurricane David to determine post-storm recovery and seasonal variation in the shelf sediments.

Type of Activity: Sampling

Information to be derived: Samples and chemical analysis

Summary: The first day, 29 stations were occupied and sediment was recovered. The second day, rough weather prevented further sampling and planned dives. Depth recorder indicated 10-12 sec. waves with as much as 18-foot heights in 50 feet of water. Turbid water unlike the previous day covered the entire shelf. The turbid boundary followed the contour of the shelf break, probably indicating turbidity due to wave resuspension of mud.

USGS Project Number: PR CO-OP

Contact: Kurt Grove ()