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| Usually coincide with convergent oceanic-continental boundaries |
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| Continuation of land under the sea; average 1/10 degree slope |
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Definition
| Cut by turbidity currents |
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| Average 4 degrees, can range from 1 degree to 25 degrees of slope |
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| Apron of debris near base of continental slope; often coincides with deep sea fans: not usually present along active margins |
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| Associated with convergent oceanic-oceanic boundaries or convergent oceanic-continental boundaries |
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| Tops are gradually eroded off by wave action, creating a relatively flat top subsea mountain |
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| Wind induced waves that occur along air-water interface |
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Definition
| Waves along air-air interface between air masses |
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Definition
| Waves along water-water interface, due to density differences |
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Definition
| Waves that can be caused by landslides or chunks of glaciers/icebergs sliding into the sea or from meteorite impacts |
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| Seismic Sea Waves / Tsunuamis |
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Definition
| Waves caused by earthquakes on the ocean floor |
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Definition
| Caused by gravity of moon and sun |
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Definition
| Distance over which wind blows in one direction |
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| The depth at which wave action no longer moves the sediment on the bottom |
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Definition
| The margin of land where waves expend their energy |
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Definition
| Entering shallower water; to become shallow |
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Definition
| Waves breaking due to slowing |
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Definition
| Breaker caused by gently sloping sea floor |
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| Breaker caused by moderately steep sea floor; best for surfing |
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Definition
| Breakers caused by abrupt, steep sloped sea floor |
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Definition
| A zone that lies between low tide level and the highest elevation on land that is affected by storm waves |
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Definition
| Area that extends from the shore as far as ocean related features can be found |
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| Boundary between the shore and coast |
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| Area above the high tide shoreline and covered with water only during storms |
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Definition
| Area exposed at low tide and submerged at high tide |
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Definition
| Area that extends seaward from low tide shoreline to low tide breaker line |
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Definition
| Area beyond the low tide breakers, which is deep enough that waves rarely affect the bottom |
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Definition
| Deposit of shore area that consists of wave worked sediments; from the coastline across the nearshore area; entire active area of a coast that experiences chances due to breaking waves |
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Definition
| Area of beach above the shroeline |
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Definition
| Flat, wave eroded surface |
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Definition
| Dry, gently sloping region at the foot of the Coastal cliff or dunes; often made of sand |
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| Beach Face or Low Tide Terrace |
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Definition
| Wet, sloping surface that extends from the berm to the shoreline |
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Definition
| Sandbars that are parallel to the coast |
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Definition
| A trough that separates the longshore bar from the beach face |
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Definition
| Water rushing up the beach face toward the berm |
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Definition
| Water that drains away from shore |
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Definition
| Less energetic waves, swash dominates |
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Definition
| High energy waves, backwash dominates |
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Definition
| Light wave activity produces a wide sandy berm and overall steep beach face |
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Definition
| Heavy wave activity produces a narrow rocky berm and overall flattened beach face and prominent offshore bars |
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Definition
| The zigzag movement of water along a shoreline |
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Term
| Longshore Drift or Longshore Transport |
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Definition
| Movement of sand in a zigzag fashion by the longshore current |
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Definition
| Worldwide sea level changes |
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Definition
| Worldwide sea level changes |
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| Estuary that forms as sea level rises creating flooded river valleys. Ex: Chesapeake Bay, Galveston Bay |
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Definition
| Form as sea level rises and floods glaciated valley; common where glaciers flowed into sea during ice age |
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| Estuary that is shallow and separated from the open ocean by sand bars that are deposited parallel to the coast by wave action; includes lagoons behind barrier islands |
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Definition
| Estuary that forms when faulting or folding of rocks creates a restricted down-dropped area into which rivers flow |
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Definition
| Extremely long offshore deposits of mainly sand parallel to shore |
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Definition
| Coastlines caused by drop in sea level or by tectonically or isostatically rising land |
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Definition
| Flat areas well above current coastline; often found along tectonically active coastlines, or where lake levels have dropped |
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Definition
| Deposits located above the current beach; may be old beach ridges |
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Definition
| Where the energy is concentrated on a coast |
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| Isolated remnants of former headlands |
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| Coastal feature that results from long shore drift of material |
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Definition
| Spit that almost completely or completely blocks the mouth of a bay |
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| A deposit of sand or gravel connecting offshore island with shoreline |
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Definition
| Perpendicular to coastline, made of rip-rap |
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Definition
| Perpendicular to coastline, made of rip-rap, made to protect harbor entrances |
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Definition
| Parallel to shoreline, often made to create artificial harbor |
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Definition
| Parallel to shore but on the landward side of the berm. An expensive and usually only a very temporary slowing of erosion |
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Definition
| When sand from rivers is stopped by dames or by lining rivers with concrete |
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Definition
| Expensive human delivery of sand for beaches |
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| Result from gravitation effect of sun and moon |
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Definition
| Highest high tides and lowest low tides, from gravity of sun and moon together |
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| When Spring Tides coincide with perigee of the moon |
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| Lowest high tides and highest low tides, results when gravity of sun and moon cancel each other |
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| Bay between Nova Scotia and New Brunswick; worlds largest tidal range |
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