Term
| Areas in the ocean with High Levels of Hypoxeia: Not enough oxygen |
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Definition
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Term
| Discovery and study of the ocean floor contours |
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Definition
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Term
| Method of measuring seafloor depth using powerful sound pulses |
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Definition
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Term
| Spent lifetime collecting data to create a map of the ocean floors |
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Definition
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Term
| provides more accurate measurements than echo sounders |
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Definition
| Why are multibeam systems better than echo sounders? |
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Term
| A US Navy satellite that Measured the sea surface height from orbit. |
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Definition
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Term
| Submerged outer edge of a continent |
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Definition
| What is a continental margin? |
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Term
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Definition
| Continental crust is thicker than...? |
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Term
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Definition
| continental lithosphere is less dense than...? |
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Term
| The deep sea floor beyond the continental margin |
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Definition
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Term
| Converge, diverge or slip past one another |
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Definition
| Lithospheric plates do what three things? |
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Term
canyons, mountains in the ocean. Called this because of their earthquake and volcanoes
EX: Pacific Ocean |
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Definition
| Active margins? What is an example? |
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Term
Continental margins facing the edges of diverging plates because of little volcanic and earthquake activity.
EX: Atlantic Ocean |
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Definition
| Passive Margins? Give an Example |
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Term
| the shallow, submerged edge of the continent |
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Definition
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Term
| Transition between the continental shelf and the deep ocean floor |
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Definition
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Term
| abrupt transition from continental shelf to the continental slope. |
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Definition
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Term
| accumulated sediment found at the base of the continental slope |
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Definition
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Term
| avalanche like sediment movement caused when turbulence mixes into water above a sloping bottom |
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Definition
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Term
| passive-margin continental shelf |
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Definition
| broad shelf extend far from shore in a gentle incline |
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Term
| mountainous chain of young basaltic rock at an active spreading center of an ocean |
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Definition
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Term
Hot springs on active oceanic ridges
aka
black smokers |
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Definition
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Term
| superheated water containing dissolved minerals and gases decend toward the hot magma chamber, leaking sulfur, iron, copper, zinc and other minerals from the surrounding rocks. Heated, chemically active water dissolves minerals and escapes upwards through the vents by convection. |
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Definition
| Explain the process of Hydrothermal vents/black smokers |
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Term
| flat areas of sediment covered ocean floor between the continental margins and oceanic ridges |
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Definition
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Term
| small, extinct volcanoes or rock intrusions near the oceanic ridges. |
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Definition
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Term
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Definition
| how long does it take for sediments to make it to the seafloor? |
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Term
| volcanic projections from the ocean floor that do not rise above sea level. |
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Definition
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Term
| flat-topped seamounts erroded by wave action |
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Definition
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Term
| arc-shaped depressions in the sea-floor caused by the subduction of a converging ocean plate |
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Definition
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Term
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Definition
true/false:
Mariana's Trench is smaller than mt. everest |
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Term
| inorganic crystalline materials with specific chemical compositions |
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Definition
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Term
| extends from the low tide mark to the edge of the continental shelf |
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Definition
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Term
| vary in composition and thickness |
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Definition
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