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BarnetOceanography 2

Barnett Oceanography 2

QuestionAnswer
bathymetry scientists measure ocean depths and chart the topography of the ocean floor
submersible small underwater craft used for deep sea research - carries thermometers, pressure gauges, etc.
Mariana Trench 11,022 meters deep; deepest place on earth
seamount submerged volcanic peak
guyot once-active, now submerged, flat-topped volcanic peak
terrigenous type of ocean sediment made of mineral grains eroded from continental rocks and transported to the ocean
biogenous type of ocean sediment made from shells and skeletons of marine animals and algae
hydrogenous type of ocean sediment made of minerals that crystallize directly from ocean water through chemical reactions
sonar sound navagation and ranging
plankton algae, animals, and baceteria that drift with ocean currents
nekton organisms that are capable of moving independent of ocean currents
benthos organisms that live on or in the ocean bottom
photic zone upper layer of ocean which sunlight penetrates
hydrothermal vent place on the ocean floor where water is heated by energy from Earth's interior; supports unique life forms
Created by: ebarnett