Figure F7. Stratigraphic profile of composite lithologic sections from Sites 1039, 1043, 1040, 1042, and 1041. The profile trends northeastward from Site 1039 to Site 1041. Site 1039 is immediately seaward of the Middle America Trench; Sites 1043, 1040, 1042, and 1041 trend northeastward, respectively, from the toe of the sedimentary wedge to the apron. Lithologic unit designations are as follows: U = underthrust units (or in the case of Site 1039, eventually will be an underthrust unit); T = toe sediments; P = prism sediments; and A = apron sediments. Sediment ages and core recovery are also shown. The age of the sediment from Site 1042 is highly suspect, resulting from a very optimistic shipboard analysis of seven spot cores (see "Nannofossil Distribution, Abundance, Preservation, and Chronology from Site 1042 Composite Section," in "Leg 170 Calcareous Nannofossil Biostratigraphic Synthesis" for further discussion).