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aphotic zone
(Encyclopedia) aphotic zone: see ocean.abyssal plain
(Encyclopedia) abyssal plain: see ocean.euphotic zone
(Encyclopedia) euphotic zone: see ocean.turbidity current
(Encyclopedia) turbidity current: see ocean.thermohaline circulation
(Encyclopedia) thermohaline circulation: see ocean.pelagic zone
(Encyclopedia) pelagic zone: see ocean.Davidson, George
(Encyclopedia) Davidson, George, 1825–1911, American geographer and astronomer, b. England. From 1845 to 1895 he was on the staff of the U.S. Coast and Geodetic Survey. He charted (1850–60) the U.S.…oceanography
(Encyclopedia) oceanography, study of the seas and oceans. The major divisions of oceanography include the geological study of the ocean floor (see plate tectonics) and features; physical…salmon, in zoology
(Encyclopedia) salmonsalmonsămˈən [key], member of the Salmonidae, a family of marine fish that spawn in freshwater, including the salmons, the trouts, and the chars (subfamily Salmoninae), the…Deep Sea Drilling Project
(Encyclopedia) Deep Sea Drilling Project, U.S. program designed to investigate the evolution of ocean basins by core drilling of ocean sediments and underlying oceanic crust. Funded by the National…