. The Earth beneath the sea : History. Ocean bottom; Marine geophysics. "â ^o^ ELUGELAB (HOLE F-l) PARRY ISLAND IHOLE E-l) LIMESTONE CAP dASALTIC FOUNDATION 10. CONTOURS IN FATHOMS SEA LEVEL 3000' 6000' 9000' 12000' â I5p00' Fig. 6. Plan and structure section through Eniwetok Atoll in the Marshall Islands showing relations of limestone cap to volcanic foundation, as determined by drilling. (After Ladd and Schlanger, Geological Survey, 1955.) and others in Fiji, lie in areas where there has been considerable elevation in post-Tertiary times. Some of the atolls are large and irregular.
. The Earth beneath the sea : History. Ocean bottom; Marine geophysics. "â ^o^ ELUGELAB (HOLE F-l) PARRY ISLAND IHOLE E-l) LIMESTONE CAP dASALTIC FOUNDATION 10. CONTOURS IN FATHOMS SEA LEVEL 3000' 6000' 9000' 12000' â I5p00' Fig. 6. Plan and structure section through Eniwetok Atoll in the Marshall Islands showing relations of limestone cap to volcanic foundation, as determined by drilling. (After Ladd and Schlanger, Geological Survey, 1955.) and others in Fiji, lie in areas where there has been considerable elevation in post-Tertiary times. Some of the atolls are large and irregular. Even less is known about the foundations of atolls in the Indian Oceans. E. Distribution As shown in Figs. 2, 7 and 8, atolls are most abundant in the western Pacific, numerous in parts of the Indian Ocean and exceedingly rare elsewhere. Structures comparable at least in general form to existing atolls have been described from rocks as old as Paleozoic (Stafford, 1959; Burnside, 1959). Many of these older structures are reservoirs of petroleum and are being intensively investigated. F. Development and Age Development of existing atolls began at least as far back as Eocene time. Most of those that rise from the deep ocean appear to be caps on ancient volcanoes that have subsided to permit the accumulation of shallow-Avater. 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 Hill, M. N. (Maurice Neville), 1919-. New York : Interscience Pub.
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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectoceanbottom
