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22 Cards in this Set
- Front
- Back
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Salinity |
thetotal amount of solid material dissolved in water |
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Sources of sea salt |
Chemical weathering of rocks, volcanic eruptions |
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Average salinity of sea water |
35 parts per thousand
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Thermocline |
layerof rapid temperature change below the zone of mixing |
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3-layered structure exists in open ocean: |
Shallow, transition, deep |
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Zone of rapidly changing salinity |
halocline |
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Salinity and what vary based on depth? |
Temperature |
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Bathymetry |
Measurement of ocean depth and charting of the shape of the ocean floor |
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Changing salinity with depth (in response to thermocline) |
pynocline
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Where are passive continental margins found? Are they associated with plate boundaries? |
found along most coastal areas// no |
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Continental Slope |
typically about 20 km (12.4 mi) wide, consists of muds and silts, and is often crosscut by submarine canyons |
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Continental Shelf |
underwater landmass which extends from a continent, resulting in an area of relatively shallow water known as a shelf sea |
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Submarine Canyons |
steep-sided valleys cut into the sea floor of the continental slope |
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3 techniques used to measure baythemtry |
sonar, multi beam sonar, satellite altimeters |
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Continental Rise |
Continental slope merges into a more gradual incline |
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Thermocline and halocline |
Near the equator (low latitude) |
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Accumulationsof deformed sediment and scraps of ocean crust form |
accretionary wedges |
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Seamounts |
Sea mountain
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Guyot |
also known as a tablemount, is an isolated underwater volcanic mountain |
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Featuresassociated with deep ocean basin |
abyssalplains, volcanic islands, seamounts and guyots |
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Terrigenous Sediment |
Oxidationoften produces red and brown colored sediments,Materialweathered from continental rocks |
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Biogenous Sediment |
Shells and skeletons of plants and animals |
