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18 Cards in this Set

  • Front
  • Back

Groin

Bars that slow drift action along a coast

Headlands

A narrow piece of land that projects from the coastline into the sea

Sea Stacks

Columns of rock standing in the sea remaining after erosion of cliffs

Sea Arch

Left standing after erosion of a cliff

Littoral Zone

Near shore area where sunlight penetrates all the way to the sediment and allows aquatic plants to grow

Eolian processes

Pertain to activity of winds

Yardings

A sharp irregular Ridge of compact sand lying in the direction of the prevailing wind in exposed desert regions

Ventifacts

Stone shaped by erosive action of windblown sand

Desert Pavement

A surface layer of closely packed or cemented pebbles, rock fragments, etc., from which fine material has been removed by the wind in arid regions

Deflation

A process of wind erosion that removes and lifts individual particles

Permafrost

Soil/rock that has been frozen for 2 years at least

Continuous Permafrost

Region of perennial permafrost pole ward of the 19°F isotherm and affects all surfaces except those beneath deep lakes or rivers

Discontinuous Permafrost

Areas of scattered permafrost, poleward toward the continuous layer

Active Layer

-A zone of seasonally frozen ground between the subsurface permafrost layer and the ground surface


-subject to consistent daily and seasonal freeze-thaw cycles

Periglacial

-The cold-climate processes, landforms, and topographic features along the margins of glaciers, past and present, that occupy 20% of earth's land surface


-Near poles

Glacial Drift

All glacial deposits

Glacial Till

As a glacier melts, all unsorted debris is deposited on the ground surface as till

Horn

Results when several cirque glaciers gouge an individual mountain summit from all sides