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  2. Coastal erosion - Wikipedia

    en.wikipedia.org/wiki/Coastal_erosion

    On non-rocky coasts, coastal erosion results in rock formations in areas where the coastline contains rock layers or fracture zones with varying resistance to erosion. Softer areas become eroded much faster than harder ones, which typically result in landforms such as tunnels , bridges , columns , and pillars .

  3. Stack (geology) - Wikipedia

    en.wikipedia.org/wiki/Stack_(geology)

    A stack or sea stack is a geological landform consisting of a steep and often vertical column or columns of rock in the sea near a coast, formed by wave erosion. [1] Stacks are formed over time by wind and water, processes of coastal geomorphology. [2] They are formed when part of a headland is eroded by hydraulic action, which is the force of ...

  4. Terrace (geology) - Wikipedia

    en.wikipedia.org/wiki/Terrace_(geology)

    A marine terrace represents the former shoreline of a sea or ocean. It can be formed by marine abrasion or erosion of materials comprising the shoreline (marine-cut terraces or wave-cut platforms); the accumulations of sediments in the shallow-water to slightly emerged coastal environments (marine-built terraces or raised beach); or the bioconstruction by coral reefs and accumulation of reef ...

  5. Headland - Wikipedia

    en.wikipedia.org/wiki/Headland

    A headland, also known as a head, is a coastal landform, a point of land usually high and often with a sheer drop, that extends into a body of water. It is a type of promontory. A headland of considerable size often is called a cape. [1] Headlands are characterised by high, breaking waves, rocky shores, intense erosion, and steep sea cliff.

  6. Bench (geology) - Wikipedia

    en.wikipedia.org/wiki/Bench_(geology)

    First, the differential erosion of rocks or sediments of varying hardness and resistance to erosion can create benches. Earth scientists called such benches "structural benches." Second, other benches are narrow fluvial terraces created by the abandonment of a floodplain by a river or stream and entrenchment of the river valley into it. Finally ...

  7. Natural arch - Wikipedia

    en.wikipedia.org/wiki/Natural_arch

    A natural arch, natural bridge, or (less commonly) rock arch is a natural landform where an arch has formed with an opening underneath. Natural arches commonly form where inland cliffs, coastal cliffs, fins or stacks are subject to erosion from the sea, rivers or weathering (subaerial processes).

  8. Wave-cut platform - Wikipedia

    en.wikipedia.org/wiki/Wave-cut_platform

    A wave-cut platform, shore platform, coastal bench, or wave-cut cliff is the narrow flat area often found at the base of a sea cliff or along the shoreline of a lake, bay, or sea that was created by erosion. Wave-cut platforms are often most obvious at low tide when they become visible as huge areas of flat rock.

  9. Coast - Wikipedia

    en.wikipedia.org/wiki/Coast

    The term coastal zone is used to refer to a region where interactions of sea and land processes occur. [10] Both the terms coast and coastal are often used to describe a geographic location or region located on a coastline (e.g., New Zealand's West Coast, or the East, West, and Gulf Coast of the United States.)