Summary for Field Activity Number 1983-010-FA

Alternate Leg ID: 702-84 (83-1)

Area of Operations: West Florida Escarpment and slope, Mississippi Canyon Reef, Hoffa Reef, Mid-Canyon Pinnacle, Desoto Canyon Reef, Mobile Pinnacle, Gulf of Mexico, United States, North America, North Atlantic

Dates: October 16, 1983 to November 05, 1983

Objectives: 1. Survey and sample shelf edge calcareous prominences along the northeastern Gulf of Mexico to study the structure, geology, and paleoenvironments of these reefs; 2. study the sedimentation on the rise seaward of the West Florida Escarpment; and 3. study the distribution of phosphate and manganese crusts on the West Florida Slope and Escarpment.

Type of Activity: Seismic profiling
Sampling
Photography

Information to be derived: Morphology
Samples and chemical analysis

Summary: Grab samples: 33; Dredge samples: 3; Photo stations: 11; Piston cores: 5; Pavement (hardrock) cores: 6; 3.5 kHz profiles: 450 km; 30 kJ sparker profiles: 450 km.

USGS Project Number: 9470-03046R

Contact: Larry Poppe (lpoppe@usgs.gov)