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Definition
| a shallow submarine platform at the edge of a continent, inclines very gently seaward, generally at an angle of .1 degrees |
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| a relatively steep slope that extends from a depth of 100 to 200 meters at the edge of the contientnal shelf down to oceanic depths. |
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| V-shaped valleys that run across continental shelves and down continental slopes |
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Definition
found at the base of many submarine canyons
great fan-shaped deposits of sediment |
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great masses of sediment-laden water that are pulled downhill by gravity
flows down the continental slope until comes to rest on the flat abyssal plain at the bass of the slope |
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| passive continental margin |
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Definition
| includes a continental shelf, continental slope, and continental rise, and generally extends down to an abyssal plain at a dpeth of about 5 kilometers |
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Definition
| wedge of sediment that extends from the lower part of the continental slope to the deep-sea floor. |
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| a bottom current that flows parallel to the slopes of the continental margin-along the contour rather than down the slope. |
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| very flat regions usually found at the base of the continental rise |
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Term
| active continental margin |
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Definition
| typically characterized by earthquakes and a young mountain belt and volcanoes on land |
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Definition
| a narrow, deep trough parallel to the edge of a continent or an island arc |
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| a giant undersea mountain range that extends around the world like the seams on a baseball |
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| where the crust is undergoing extension, runs down the crest of the ridge |
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| major lines of weakness in Earth's crust that cross the mid-oceanic ridge at approximately right angles |
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Definition
| conical undersea mountains that rise 1000 meters or more above the sea floor |
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Definition
flattopped seamounts found mostly in the western Pacific Ocean.
summits cut by wave action |
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Definition
| wave-resistant ridges of coral, algae, and other calcareous organisms |
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Definition
| flat, tablelike reefs attached directly to the shore |
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| parallel the shore but are separated from it by wide, deep lagoons |
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| circular reefs that rim lagoons |
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| land-derived sediment that has found its way to the sea floor |
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sediment that settles slowly through the ocean water.
fine grained clay and the skeletons of microscopic organisms. |
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Definition
| distinctive rock sequences found in many mountain chains on land. |
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