Concordant coastline

A concordant coastline is a coastline where bands of different rock types run parallel to the shore. These rock types are usually of alternating resistance, so the coastline forms distinctive landforms, such as coves. See also: Discordant coastline

Coastline

coast.

Resistance

Resistance can mean one of:
- electrical resistance
- inner resistance
- antibiotic resistance
- resistance to a disease (see related subject immunology)
- a political or military resistance movement against foreign occupation, or more rarely, against one's own government
- Resistance (socialist youth organisation) (Australia)
- Psychodynamic resistance
- geological resistance
- fluid resistance
- thermal resistance
- Resistance Records
- Air resistance, or drag
- In physics, resistance can be any force that opposes motion ja:レジスタンス

Landforms

A landform comprises a geomorphological unit. Landforms are categorised by characteristics such as elevation, slope, orientation, stratification, rock exposure, and soil type. Landforms by name include berms, mounds, hills, cliffs, valleys, and so forth. Oceans and continents exemplify highest-order landforms. A number of factors, ranging from plate tectonics to erosion and deposition can generate and affect landforms. Biological factors can also influence landforms -- see for example the role of plants in the development of dune systems and salt marshes, and the work of corals and algae in the formation of coral reefs. coral reefs

List of landforms

- alas
- continent
- limestone pavement
- plain and plateau
- rock formations

Erosion landforms

Landforms produced by erosion and weathering usually occur in coastal or fluvial environments, and many appear above under those headings. Some other erosion landforms that do not fall into the above categories include:
- canyon
- cave
- limestone pavement
- tea table
- Deposition landform -- landforms produced by deposition of load or sediment (usually coastal or fluvial).
- Eolian landform - landforms produced by wind weathering.

External links

- [http://www.deh.gov.au/settlements/industry/minerals/booklets/landform/ Landform Design] Category:Geomorphology ja:地形

Cove

England]] This article is about the coastal feature, for details of the megalithic monument see Cove (standing stones) A cove is a coastal landform. A cove is generally a circular or round inlet with a narrow entrance. Coves form on concordant coastlines, where bands of rock of varying strength run parallel to the coast. Typically these will form where a narrow band relatively strong rock, like limestone or an igneous rock forms the coastline, with a band of a weaker rock, such as clays and sands, behind it. Often another band of strong rock, such as limestone or chalk will form the back of the cove. The action of waves in weak areas, such as joints and cracks, in the band of rocks which form the cliffs eventually break through the strong rock, exposing the weak rock behind. The weak rock is quickly eroded by wave action, sub-aerial processes and weathering (which causes slumping). Wave refraction occurs where waves travel through the narrow entrance and then disperse in the cove. Erosion is therefore equal at all points of the cove shoreline, and the perfect curve or circular shape is formed. slumping, and then erodes the clay away.]] Lulworth Cove on the Jurassic Coast in Dorset is a good example of a cove because just to the west of the cove the beginnings of a second cove (called Stair Hole) can be seen forming. Category:Landforms

Discordant coastline

A discordant coastline is a type of coastline formed when rock types of alternating resistance run perpendicular to the shore. Discordant coastlines feature distinctive landforms because the rocks are eroded by ocean waves. The less resistant rocks erode faster, creating inlets or bays; the more resistant rocks erode more slowly, remaining as headlands or outcroppings.

External link

- [http://www.kesgrave.suffolk.sch.uk/Curric/geog/discord.html Online Physical Geography Tutorial] (BROKEN) See also: Concordant coastline

Categorie:Hoog-Normandië

Categorie:Regio in Frankrijk

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