Today. The difference in rock types between discordant and concordant coastlines means that there are differences in erosion. About 40% of the global population lives within 100km of a coastline. Assessment week 2 (WB 24th February 2020) - End of unit test - Physical landscapes of the UK. Soft rocks like mudstone and siltstone Best study tips and tricks for your exams. What factors affect population density and distribution? Although now a coastal village, Happisburgh was once some distance from the sea, parted from the coast by the parish of Whimpwell, long since eroded away. This is because access to the coast offers the opportunity for harvesting marine resources, especially fish, as well as the ability to conduct international trade via the sea. high and low energy coasts, geology and sea level and how these change a coastline | GEOLOGICAL structure : which create concordant and discordant coastlines ( Dalmatian and Haff ). An explanation of the formation of the cove can be found on the right. Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. . Bull's Head in St Oswald's Bay. Rocks outcrop at right angles to the sea, forming headlands and bays. Concordant. 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. These will be exam question style ranging from 4, 6 and 9 mark questions. geography revision coastal landforms 264.4K views Discover short videos related to geography revision coastal landforms on TikTok. Many of these types of coastlines were actually formed toward the end of the Last Glacial Period (LGP). Consequently, the water from the sea sweeps away the soft rocks leaving behind a circular land formation known as a cove. The processes have been operating over the last 8000 years. Corrosion is also known as solution. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. Practice Questions: Describe the differences between a concordant and a discordant coastline (4 marks) Explain how headlands form (3 marks) Explain how coves are formed (3 marks). When a stretch of coastline is formed from. They are more common in winterthan in the summer. Sheep's Head Peninsula to the south formed from more resistant coarse sandstone, projects out 21 km. Paw Patrol Does Ryder Have A Crush On Katie, Paired spits formed parallel to the coast with haff lagoon behind at the mouth of the River Vistula in Gdansk. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. Coasts Revision Booklet. A hard rock type such as granite is resistant to erosion and creates a promontory whilst a softer rock type such as the clays of Bagshot Beds . Swam in the ocean? The Earth has around 620,000 kilometres (390,000 mi) of coastline. How can we increase the amount of food produced globally? Discordant coastline . The latter can happen when tectonic forces lowered the land level or when river deposits and compaction of alluvial (river) sediments occur. There are two special types of submerged coastlines: ria coasts and fjord coasts. Rocks outcrop at right angles to the sea, forming headlands and bays. Concordant and discordant coastlines. These are where rock strata or structures are aligned at an angle to the coastline. The relative resistance of rock types influences the degree of indentation of bays. As a result of the coastal feature, the depth of water around a coast varies. Discordant and Concordant Coastlines GCSE Geography A Level Revision Coasts - YouTube 2:20 Discordant and Concordant Coastlines GCSE Geography A Level Revision Coasts TheGeographyGuy 1.66K. How has demand for water in the UK changed? Either way, there is now a (bit of) coastline that is no longer submerged under water. Our geography videos are developed with links to various specifications including Geography GCSE, Geography IGCSE, Geography AS-level, Geography A-level, Geography IA-level, Geography National 5, Geography Higher. As the wave breaks, it carries material up the beach in its swash. During this time, glaciers and ice sheets were retreating, causing a rise in global sea levels and localised changes in land height. shale), eroding quicker than the hard, resistant rock (e.g. This process. A coastline is an area where land meets the water. What are shanty town improvement schemes? Categories . What are the physical characteristics of cold environments? What are Mumbais social and economic opportunities? If you've been to the beach, you've probably seen some of them: mangrove trees and hermit crabs, penguins and sea oats- organisms that can neither fully survive way out at sea, nor venture too far inland. Dip is the angle of inclination of titled strata. This means that these waves transport beach material back into the sea, lowering the height of a beach. Concordant coasts are also known as dalmatian coasts, after the Dalmatian region of Croatia, or Pacific coasts, after the coastline of Chile in South America. Emergent Coastlines. The Adriatic Sea itself is a concordant landform, consisting of a body of water between parallel ranges. starter: Students examine the picture and discuss what is happening to the houses and why. Teacher. Chucky Trill Net Worth 2020. . . As it does so continually, the hard rocks resist erosion resulting in the protection of the soft rocks. . Swanage is located in South England and features both a discordant and concordant coastline (see diagram below) Due to this contrasting geology a number of differences can be outlined. Coasts can be classified in a variety of . Beach Headland Blowhole Wave cut platform 9. Free and expert-verified textbook solutions. PBworks / Help The bands of soft rock, such as sand . 4: Formation of Lulworth Cove (https://commons.wikimedia.org/wiki/File:Lulworth.png) by Red (https://en.wikipedia.org/wiki/User:Red) licensed by CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/deed.en). Both concordant and discordant. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. Watch popular content from the following creators: ambs(@aambersaunders), Revision(@lastminstudies), - (@alevelhelp.32), GCSE revision 2022(@revision.2022), BBC Bitesize(@bbcbitesize), Revision(@lastminstudies), Revision . the same rock types are parallel to the coastline, with alternating bands of different rock types running parallel to the coastline behind it (as opposed to a 'discordant coastline' where the rock types are perpendicular to the coastline, presenting differing rock types to the sea along the coastline). Coastlines will expand as climate change continues. North of Swanage, the chalk outcrop creates the headland which includes Old Harry Rocks. (For example the south or the Dorset coast) . Waves are the main reason for coastal change. What is the difference between a tornado and a hurricane? A concordant coastline diminated by limestone in the map has the same type of rock along its length. Although now a coastal village, Happisburgh was once some distance from the sea, parted from the coast by the parish of Whimpwell, long since eroded away. What problems are caused by global warming? Human and physical factors causing river flooding. A concordant coastline is where the same rock runs along the length of the coast. Economic losses to businesses if areas become unattractive and depopulated. Part of the Dorset coastline in the UK running north from the Portland limestone of Durlston Head is a clear example of a discordant coastline. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. They are, for the time being, out of reach of the current wave action and will therefore not be affected by them. The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. This results in the formation of headlands and bays. Figure 3: Location of Lulworth Cove, Dorset, UK, map data: 2022 Google. Wrong! You know your landforms of coastal erosion. Sea level rise at the end of the Devensian Glacial overtopped the low points of the anticlines and the sea flooded synclines. Definitions. Not surprisingly, destructive waves destroy beaches. Sediment Cells. How has hot desert vegetation adapted to the climate? Today. Coastlines where different types of rock alternate between hard and soft rock are called discordant coastlines and will have more bays and headlands along its length. Lulworth Cove has occurred on a concordant coastline. Lulworth Cove and Stair Hole, with narrow openings, widening laterally parallel to the coast. Fun Fact: if you are interested in dinosaurs and dinosaur fossils, Durlston Bay is a renowned site for Early Cretaceous fossils. By contrast, when the rock strata are perpendicular to the coastline, the coast is referred to as discordant. Less resistant rocks are eroded more than the resistant . The shifting coastlines can impact freshwater resources near the coasts by creating brackish mixtures, and can also pose an obvious danger to infrastructure built directly along the coast. Along the coastline of Dorset, there are concordant and discordant coastlines. BBC Bitesize. 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. Case studies Dorset Jurassic coast and Holderness. Explain the process of longshore drift (3) Coasts - Grade Booster. Waves in the middle of the bay, where the water is deeper, do not lose velocity as . Paymaya Annual Report, Introduction to the location of the Delta. How is a cold environment interdependent? This quiz focusses in particular on those features which are caused by coastal erosion. Lerne mit deinen Freunden und bleibe auf dem richtigen Kurs mit deinen persnlichen Lernstatistiken. Discordant and concordant coasts in Dorset. At points where the Portland is weaker, erosion hasbroken through and then rapidly eroded out the softer strata laterally, creating a series of coves, e.g. Discordant coastlines form where geology alternates between bands of hard and soft rock (see image below). True or False: As sea levels rise, coastlines are likely to expand. Test your knowledge with gamified quizzes. Changing rates of rainforest deforestation. chalk) May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. Full lesson covering the different types of erosion and geology along the coast. Concordant coasts form where geological structure is such that different rock strata or folds are aligned parallel to the coastline. The soft rock is made of clay and sands, and the hard rock is chalk and limestone. Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. The shape of the cove is the result of wave diffraction. What are the environmental impacts of economic development in Nigeria? This happened over about 1000 years, (very rapid) and submerged coastlines. By registering you get free access to our website and app (available on desktop AND mobile) which will help you to super-charge your learning process. The results are deep, lengthy, thin inlets surrounded by high cliff faces. Coastal Erosion. A discordant coastline occurs where bands of different rock type run perpendicular to the coast. Coastlines, where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines. Touch device users . starter: Students examine the picture and discuss what is happening to the houses and why. This is a Geography revision website for the Edexcel A-Level from 2016 (so the new syllabus), and will contain my class notes, own research and detail from revision guides and textbooks. Almera in Spain: a large-scale agricultural development, Sustainable Food Supplies in an LIC Bangladesh. -Erode the coast-Short wave length, high and steep. UK Sediment Cells Source: Scool. weathering. Specifically looking at the differences between concordant and discordant coastlines. What is the structure of the Temperate Deciduous Woodland? The headlands are formed by the hard rocks such as limestone and chalk while the bays are formed as a result of the sweeping away of the soft rocks like clay and sand. . She is cooler than I am and has a life instead of enough time to make this. The UK's coastline is 31,368 km long (if you include all the main islands). Discordant coastline . As stated earlier, coves are formed out of concordant coastlines. The warmer climate that followed melted much of the ice. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . Originally a band of resistant Portland . Which of the following is NOT typically found in a coastal ecosystem? A hard rock type such as granite is resistant to erosion and creates a promontory whilst a softer rock type such as the clays of Bagshot Beds . Pinterest. Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant. Wave Refraction and Coastal Defences. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. In some cases it is estimated that there was a rise . Large particles like boulders are pushed along the bottom of the river bed/sea by the force of the water. The UK's coastline is 31,368 km long (if you include all the main islands). An example of a popular cove situated in a concordant coastline is the Lulworth Cove. Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. Aqa. On discordant coastlines, differential erosion may occur, where bands of hard and soft rock outcrop at right angles to the sea. Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines. As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves.