. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography sec. a n . â¢â ' i;~ i East â¢i * '. i : ⢠; '. i 1 MS B 1\ ;V- ::^^!!:";,!; i:«W4iraw' ^**^>»>. -vw^ Figure 21. Copy of original seismic section normal to the trends of the Blanquilla platform. Illustration covers part of the track line made between 11°40'N3 46°56'W and 11°49'N3 64°42'WJ southwest of Blanquilla Island (fig. 2). Arrows: A3 multiples; B3 side echo from the slope of Blanquilla; C3 acoustic basement; D3 "granitic
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography sec. a n . â¢â ' i;~ i East â¢i * '. i : ⢠; '. i 1 MS B 1\ ;V- ::^^!!:";,!; i:«W4iraw' ^**^>»>. -vw^ Figure 21. Copy of original seismic section normal to the trends of the Blanquilla platform. Illustration covers part of the track line made between 11°40'N3 46°56'W and 11°49'N3 64°42'WJ southwest of Blanquilla Island (fig. 2). Arrows: A3 multiples; B3 side echo from the slope of Blanquilla; C3 acoustic basement; D3 "granitic" ridge; E3 Blanquilla Canyon; F3 fault contact (?) Venezuelan Basin - Curacao Ridge Segments of Profile 1, Profile 2, and Profile 3 cross the southern margin of the Venezuelan Basin (fig. 24). Each profile shows approxi- mately 900 m of well stratified sediments that abut the Curacao Ridge along a possible fault contact. These sediments are essentially horizon- tal and contain several reflectors that can be identified on each profile ( the reflectors 350 m below the sea floor). The large number of the reflecting horizons that dominate the upper part of the sediment column decrease with depth; the deepest reflectors coming from about 1800 m below the sea floor are separated from the well stratified near- surface sequence by a 600-700 m thick acoustically transparent layer. In Profiles 1 and 2 the lowest reflector has a definite upward curve near its contact with the Curacao Ridge that may suggest drag as a result of relative uplift of the ridge. The Curacao Ridge in Profile 1 has a rough surface topography that is conformable with the folded subsurface sediments. The strong para- bolic reflectors (fig. 25) most likely represent side echoes from the 691. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly re
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