. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography At 10°42'N the upper part ot the record is missing, but 200 m below the sea floor two faults are seen that border a zone of incoherent reflections. Based on the extension of trends from Profile 7, this fault zone may mark a near-surface expression of the faults associated with the northern border of the Araya Block; the fault contact between the Cariaco Basin sediments and the incoherent reflectors at 10°36'N (Profile 5) may represent its southern m
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography At 10°42'N the upper part ot the record is missing, but 200 m below the sea floor two faults are seen that border a zone of incoherent reflections. Based on the extension of trends from Profile 7, this fault zone may mark a near-surface expression of the faults associated with the northern border of the Araya Block; the fault contact between the Cariaco Basin sediments and the incoherent reflectors at 10°36'N (Profile 5) may represent its southern margin. In Profile 5, only about 150 m of well stratified sediments are detected in the Cariaco Basin;'below these the sediments are acoustical- ly transparent. There is a small reverse fault at the northern edge of the basin, and the sediments, instead of forming a pond (as to the east in Profile 7), are arched upward in the middle of the basin. This could be caused by compression, or the sediments may be thickening into the boundary faults and form a broad fault anticline, as suggested by Ball et al. (19 71) . Beyond the southern boundary fault there is a gentle rise under- lain by at least 300 m of sediments. There is some indication of stratification within these sediments, but it is discontinuous and sug- gestive of slumping. The slope becomes steeper at another fault contact, and the sediments that lie below this part of the slope (at least 200 m) also appear to be broken up by slumping. Just below the shelf break 1 p '. i tl ' • - !l iff! Bk #*s:>> B. 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 resemble the original Atlantic Oceanographic and Meteorological Laboratories; Pacific Oceanographic Laboratories; United States. Environmental Science Services Administration. Research Laboratories; Environmental Resear
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