1. Coastal and Marine Hazards and Resources
2. Geoscience Data System

Field Activity 1970-014-FA

Identifier	1970-014-FA
Alternate names	DSDP Leg 11
Purpose	During this eight-week cruise, 11 sites were drilled in the western North Atlantic in an attempt to achieve the broad scientific goals of the project and to pursue the more specific objectives outlined as follows: 1. to recover the oldest in-place material from the top of the ocean crust as near the continental margin as possible in an attempt to date the age of the western Atlantic, and from this data infer the age of the breakup of North America and Africa; 2. to determine the paleo-environment of the developing Atlantic; 3. to sample and date the prominent seismic reflection horizons that lie below much of the western Atlantic; and 4. to determine the composition and origin of the massive accumulation of sediment that forms the Blake-Bahama Outer Ridge system and continental rise off North America.
Location	Cat Gap, Bahamas, Blake-Bahama Outer Ridge, eastern U.S. Atlantic continental rise, continental shelf, North America, North Atlantic;
Summary	Well holes: 12 (#98, 99, 99A, 100, 101, 101A, 102, 103, 104, 105, 106, 106A, 106B, 107, 108); Cores: 150 (recovered 2083 ft., 635 m).
Info derived	Samples and chemical analysis; Grain size analysis; Morphology;
Comments	Original Center People field contained: John Hathaway, Sedimentologist. Project = DSDP, DSDP
URL	http://deepseadrilling.org/11/dsdp_toc.htm
Platform	Glomar Challenger 400 feet
Itinerary	Start Miami, FL 1970-04-08 End Hoboken, NJ 1970-06-01 Days in the field 55
Bounds	West -76.6887 East -68.82667 North 38.8045 South 25.3825 Show or hide mapHide layers