More resistant Jurassic Portland Limestone forms the Peveril Point headland to the south, projecting out by 1 km. They are, for the time being, out of reach of the current wave action and will therefore not be affected by them. Where are the areas of water deficit and surplus in the UK? The sediment acts as a tool on the cliff, chiselling away at the surface and gradually wearing it down by removing small particles. True or False: Concordant coastlines form coves. 1 - Approximate locations on the coastline between Durlston Head and Studland Bay, map data: 2022 Google. Because of this difference in erosion resistance, discordant coastlines are home to headlands, due to eroding hard rock, and bays, due to eroding soft rock. The coastal engineering for the shoreline protection involves: . Many of our major cities have developed along oceanic coasts as well: think of New York City, Tokyo, Istanbul, Dubai, Hong Kong, and Copenhagen, just to name a few! Economic losses to businesses if areas become unattractive and depopulated. Hilbre Island (Cheshire) is an example of a possible fieldwork location. . Spits were formed in river mouths where the river was powerful enough to break through the sand ridge to the sea. Coastlines are formed through the processes of erosion, transportation, and deposition. Concordant coastlines tend to have fewer bays and headlands. Landforms in the middle course of a river. Emergent Coastlines. . Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. Tip: To turn text into a link, highlight the text, then click on a page or file from the list above. Identify the physical process that has shaped the pebble (1) Coasts - Grade Booster. Stacks, headlands, bays, cliffs and wave-cut platforms are all included. Discordant coasts are also known as Atlantic coasts, after the Cork coastline in the Republic of Ireland. Headlands and bays Cliffs along the coastline do not erode at the same pace. What challenges are associated with the growth of Rio? What are the impacts of industry on the physical environment? While not every UN member has ratified UNCLAS, most nations abide by it anyway. A coastline is an area where land meets the water. Economic losses to businesses if areas become unattractive and depopulated. These act as agents of erosion because their . When a stretch of coastline is formed from different types of rock, headlands and bays can form. These are coastlines where the bands of rock run perpendicular to the coastline meaning . This lesson was designed initially for an interview, and worked really well for a 50 minute lesson duration. Human actions and Physical factors affecting the Delta. Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. This results in the formation of headlands and bays. It has a variety of other micro-features and a unique geology. Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. Identify your study strength and weaknesses. Discordant and concordant coasts in Dorset. Economic opportunities and challenges in Lagos. Create and find flashcards in record time. what is the difference between concordant and discordant coast lines (4) concordant coasts are created where rock strata run parallel to the coastline in alternating bands of more resistant and less resistant rocks. There are four processes involved in the eroding coastlines. Concordant Coasts . Weathering and mass movement in river valleys. Discordant These are where rock strata or structures are aligned at an angle to the coastline. Concordant and discordant coastlines. You know your landforms of coastal erosion. For example the Neman Haff behind the bar running from the Kaliningrad in Russia to the Lithuanian coast at the mouth of the river Neman. Emergent coastlines can pop up after tectonic activity, where the land is being pushed up by the tectonic plates. What is the impact of humans on the Taiga? Sea level rise at the end of the Devensian Glacial overtopped the low points of the anticlines and the sea flooded synclines. Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. All maps, graphics, flags, photos and original descriptions 2023 worldatlas.com, Coastal Countries With The Shortest Coastline, Meet 12 Incredible Conservation Heroes Saving Our Wildlife From Extinction, India's Leopard God, Waghoba, Aids Wildlife Conservation In The Country, India's Bishnoi Community Has Fearlessly Protected Nature For Over 500 Years, Wildfires And Habitat Loss Are Killing Jaguars In The Amazon Rainforest, In India's Sundarbans: Where People Live Face-To-Face With Wild Tigers, Africa's "Thunderbird" Is At Risk Of Extinction. What are the effects of economic development in Nigeria on quality of life? One of the topics looked at in GCSE Geography is the features that are found on a coastline. Concordant coastlines tend to have fewer bays and headlands. Shake Hands With Beef Girl, caused by the shrinkage of igneous rock as it cools. Tunisia Case Study. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. What is the impact of humans on the savanna? Discordant coasts forms where geological structure is such that different rock strata of folds are aligned at an angle to the coastline. This process. discordant coastlines. What are the three processes that shape the coastline? What is the difference between a tornado and a hurricane? Dip is the angle of inclination of titled strata. During this time, glaciers and ice sheets were retreating, causing a rise in global sea levels and localised changes in land height. They are most common where fetchis short. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. The River Tees landforms of erosion and deposition, Case Study Ganges/Brahmaputra River Basin, Geological time is on a different time to human time, Different rocks create contrasting landforms and landscapes. As a result, it does not travel far up it. If you continue to use this site we will assume that you are happy with it. Tectonic forces produced by the collision of African and Eurasian plates compressed Carboniferous Limestone during the Alpine Orogeny 50 million years ago. Human and physical factors causing river flooding. Lulworth . Aqa. Named after the Dalmatia region on the Adriatic Sea. A submergent coastline is a coastline that has submerged below the water. Links to wider reading and an introductory video. Find out more about concordant coastlines. Image. An explanation of the formation of the cove can be found on the right. Coastlines of Submergence: i. Ria Coast: During the Ice Age a great deal of water was locked up in ice. (BBC, 2006). The Earth has around 620,000 kilometres (390,000 mi) of coastline. Lulworth Cove is a World Heritage site and part of the Heritage Coastline. Sign up to highlight and take notes. Click To Play 1. What are the causes of deforestation in the Amazon? Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. They are gentle, flat waves with a strong swash and a weak backwash; as a result, constructive waves build beaches. However, overall, access to a coastline can grant a country food supplies and economic resources that land-locked countries cannot acquire without trade. This belongs to: _____. It is only when the water enters shallower areas that the water itself moves forward. What is the structure of the tropical rainforest? 5 July 2020 / in AQA GCSE Geography , Coasts , Landforms of Coastal Erosion / by Anthony Bennett A discordant coastline is where the geology alternates between strata (bands) of soft and hard rock. The following are facts about constructive waves. Some concordant coasts have long, narrow islands running parallel to the coastline. Specification and other support materials for teachers, including delivery guides Explore. formed by the erosion of less resistant Wealden Clays. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. True or False: Ria coastlines and Dalmatian landforms are both associated with submergent coastlines. How has hot desert vegetation adapted to the climate? A wave-cut notch is created by erosional processes such . (For example the south or the Dorset coast) . e.g. Upload unlimited documents and save them online. Assessment week 2 (WB 24th February 2020) - End of unit test - Physical landscapes of the UK. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The procedure for calculating concordant and discordant pairs compares the classifications for two variables (for example, X and Y) on the same two items. Bands of soft rock such as clay and sand are weaker therefore can be eroded quickly. When the following wave breaks, its swash will deposit more material without it being 'captured' by the backwash of the preceding wave. Create the most beautiful study materials using our templates. If the coastline is concordant then the coastline will have the same type of rock all the way down the coastline, because the ropck is running parallel to the coastline. Case studies Dorset Jurassic coast and Holderness. The differing resistance to erosion leads to the formation of headlands and bays. Erosion worsens as the waves becomes stronger. Resistant Cretaceous Chalk forms the Foreland headland, projecting 2.5 km to the north. What is Nigerias location and importance? The Dorset Coast contains a range of landforms including Durdle Door, Lulworth Cove . Discordant These are where rock strata or structures are aligned at an angle to the coastline. Limestone Case Study Malham, The Yorkshire Dales. Why are deserts located along the tropics? By contrast, when the rock strata are perpendicular to the coastline, the coast is referred to as discordant. This results in the formation of headlands and bays. For example, both X and Y rate item 1 higher than item 2. As it does so continually, the hard rocks resist erosion resulting in the protection of the soft rocks. The outer hard provides a protective barrier to erosion of the softer rocks further inland. Examples of discordant coastlines are Bantry Bay and Dingle Bay found in Ireland while an example of a concordant coastline is Lulworth Cove. Where the land rises to the sea there are several parallel strata of Jurassic rocks, including Portland limestone and the . A concordant coastline diminated by limestone in the map has the same type of rock along its length. Where once there was a simple river with well-defined banks, now there is a sprawling river that has submerged most of the terrain around it. True or False: As sea levels rise, coastlines are likely to expand. If they move in opposite directions - one increases while the other decreases - then the pair is discordant. (8) Coasts - Grade Booster Geog' Clips Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. Practice Questions: Slideshow 2773107 by chanel Coasts Revision Booklet. If the coastline is discordant then the rock type will change as we go up the coastline, An example of a discordant coastline is swanage The form of the coastline around Durdle Door is controlled by its geologyboth by the contrasting hardnesses of the rocks, and by the local patterns of faults and folds. Select all that apply. If the direction of the classification is not the same . The warmer climate that followed melted much of the ice. These are where rock strata or structures are aligned at an angle to the coastline. discordant coastline diagram. A concordant coastline produced by the geological structure of folds parallel to the coast. This quiz focusses in particular on those features which are caused by coastal erosion. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. Have all your study materials in one place. (bands) of hard rock and soft rock; many bays and headlands. pg. Give the quiz another go and don't forget to read up on this area by heading over to our coasts resources using the topics link at the top of the page. These act as agents of erosion because their backwashis greater than their swah. May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. How has rainforest vegetation adapted to the climate? They have low energy and an elliptical orbit. [5] The arch has formed on a concordant coastline where bands of rock run parallel to the shoreline. Caves, Arches, Stacks and Sumps 3. What does scenery formed by erosion look like? Waves can be gentle and infrequent or more significant, more frequent, and more powerful. When the auto-complete results are available, use the up and down arrows to review and Enter to select. Share 5.1K views 2 years ago This video explains the difference between a concordant and discordant coastline, including the coastal landforms that occur along each and the geological. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Re-rerouting a two lane road can cost between 150,000 and 250,000 per 100 m. The collapse of the section of coast supporting the South Devon Main Line Railway in February 2014 cost 35 million to repair, and businesses in the South West lost 60 million.
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