Coasts (Junior Cert Geography): Flashcards

Erosion, transportation, deposition

Erosive power of water removing rock through constant impact

Air trapped in cracks expands when waves retreat, shatters rock

Waves carry pebbles/stones that hit coastline, breaking off rock

Rocks collide in waves, becoming smaller & smoother until sand

Salt water slowly dissolves certain rock types on coast

Process where waves move sediment along coast in zig-zag pattern

Waves moving up shore at an angle, pushing material up

Water flowing back down at right angle, pulling material back

Notch at cliff base expands through erosion to form cave

Sea cave eroded through to other side of headland

Roof of sea arch collapses, leaving isolated rock pillar

Long narrow ridge of sand extending from mainland into sea

Narrow sand/shingle strip connecting offshore island to mainland

Sutton tombolo connecting Howth to Dublin