title: Jurassic sandstone from the tropical atlantic.
abstract: The oldest sediment yet sampled from the abyssal margins of South America, late Jurassic (or possibly very early Cretaceous) shallow-water, coarse-grained, calcareous sandstone containing palynomorphs and mollusk prisms, was recovered from a depth of 4400 meters on the seaward scarp of the Demerara Plateau. The sandstone was deposited in a shallow, late Jurassic epicontinental sea after the initial stages of rifting when the newly created Atlantic began to founder.
authors.forename: P J
authors.initials: PJ
authors.lastname: Fox
authors.forename: B C
authors.initials: BC
authors.lastname: Heezen
authors.forename: G L
authors.initials: GL
authors.lastname: Johnson