Initial Reports of the Deep Sea Drilling Project - Volume 11

This volume covers Leg 11 of the cruises of the Drilling Vessel Glomar Challenger. Leg 11 of the Deep Sea Drilling Project began in Miami, Florida on April 8,1970 and ended in Hoboken, New Jersey on June 1, 1970. 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 below: 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; 4) to determine the composition and origin of the massive accumulation of sediment that forms the Blake-Bahama Outer Ridge system and the continental rise off North America; and 5) to gain more knowledge about the structure and history of the Bahamian carbonate province.