The relatively gentle profile of the beach with a steep ridge at the top of the beach means that the backwash soaks into the sand or slowly drains away. Specifically looking at the differences between concordant and discordant coastlines. If you are citizen of an European Union member nation, you may not use this service unless you are at least 16 years old. ALEVEL GEOGRAPHY - COASTAL LANDSCAPES | EQ1 : the littoral zone ; offshore, nearshore and backshore. As a wave undercuts a cliff the cliff retreats. What is the impact of humans on the temperate deciduous woodland? The warmer climate that followed melted much of the ice. https://commons.wikimedia.org/wiki/File:Lulworth.png. Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. Almera in Spain: a large-scale agricultural development, Sustainable Food Supplies in an LIC Bangladesh. What is the role of transnational companies in Nigeria? Erosion worsens as the waves becomes stronger. Discordant These are where rock strata or structures are aligned at an angle to the coastline. - Internet Geography What is a concordant coastline? Safe access points to the shoreline at several points around the edge. In the Holocene Interglacial constructive waves pushed the ride of sands and gravel landwards as sea levels rose. This. The differing resistance to erosion leads to the formation of headlands and bays. Destructive waves are usually very high, over 1m. Chesil Beach in Dorset was formed this way. There are four major different types of coastlines: Below, we will go into more detail on all of these different types of coastlines. This lesson was designed initially for an interview, and worked really well for a 50 minute lesson duration. Lulworth Cove is a classic example of a 'concordant coast' - i.e. Emergent coastlines can pop up after tectonic activity, where the land is being pushed up by the tectonic plates. Sediment Cells. Assessment week 2 (WB 24th February 2020) - End of unit test - Physical landscapes of the UK. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. A coastline with the same type of rock along its length; fewer bays and headlands . The difference in rock types between discordant and concordant coastlines means that there are differences in erosion. Coastlines are constantly changing, with sea levels rising or falling, and it is no different with submergent coastlines. A discordant coastline occurs where bands of different rock type run perpendicular to the coast. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. This belongs to: _____. 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). The Early Cretaceous, sometimes known as Lower Cretaceous, is the period stretching from 145 million years ago to 100.5 million years ago. Great Ocean Road, Australia. 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. How is a cold environment interdependent? [5] The arch has formed on a concordant coastline where bands of rock run parallel to the shoreline. They have low energy and an elliptical orbit. dxterity stock symbol / nice houses for sale near amsterdam / nice houses for sale near amsterdam When the auto-complete results are available, use the up and down arrows to review and Enter to select. Even London is built along the River Thames, which flows into the North Sea. During the Devensian Glacial eustatic changes lowered sea levels by 120 m. At the start of the Holocene Interglacial (10,000 years BP) led to a rapid 100 m eustatic rise in global sea levels, as 3,000 years of ice sheets and glaciers shrank. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. A coastline is anywhere where the land meets the water. How has the vegetation in the temperate deciduous forest adapted to the climate? Corrosion is also known as solution. 4 - the process of forming Lulworth Cove, Dorset, UK. 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. At the mouth of the River Oder near Szczecin, Stettiner Haff formed where sand ridge connected islands, leaving river to emerge through three narrow outlets. The differing resistance to erosion leads to the formation of headlands and bays. It remains England's only natural World Heritage Site. These waves are also known as plunging waves. Specifically looking at the differences between concordant and discordant coastlines. They have a mainly circular orbit, a steep gradient. Jamaica Case Study, How can the growth of tourism reduce the development gap? If the direction of the classification is not the same . Deformation is the degree of tilting of folding ofrock. As Thor says, not bad at all. Development, population change and the demographic transition model, Strategies for reducing the development gap, How can the growth of tourism reduce the development gap? Shake Hands With Beef Girl, What is migration and why do people migrate? Both concordant and discordant. Links to wider reading and an introductory video. 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 . Created up folded ridges (anticlines) and down folded valleys (synclines) aligned parallel to the coast. The concordant coastline runs from west to east along the south coast. 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. It's a way of having all my information in one place. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. In Cork in the south west of the Republic of Ireland, Formed from less resistant Carboniferous Limestone. They are more common in . Portland limestone erodes very slowly, retreating landwards by marine undercutting and collapse to form a straight W-E coastline. Why is the weather of the UK so changeable? Then when the wave retreats, the compressed air expands again. Economic losses to businesses if areas become unattractive and depopulated. As stated earlier, coves are formed out of concordant coastlines. 2: Durlston headland and bay (https://en.wikipedia.org/wiki/File:Durlston_bay_from_durlston_castle.jpg) by Jim Champion (https://commons.wikimedia.org/wiki/User:JimChampion) licensed by CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/deed.en), Fig. The shape of the coastline (which is dependent on its geology) - on concordant coastlines, rocks are parallel to the wave front and therefore rates of erosion are similar along the coastline. What is the impact of humans on the Taiga? Gcse Geography Revision. Teacher. What is the structure of the tropical rainforest? a headland separated by two bays. 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. Numerous plants and animals have adapted to live along coastlines. The low-energy wave spills into the bays as . Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. This process. Secondly, erosion of concordant coastlines results in the formation of coves while the erosion of discordant coastlines results in headlands and bays. Importance of the Delta for the region. You need to do some work on landforms of coastal erosion. Set individual study goals and earn points reaching them. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. Resistant Cretaceous Chalk forms the Foreland headland, projecting 2.5 km to the north. They are gentle, flat waves with a strong swash and a weak backwash; as a result, constructive waves build beaches. Discordant coastline - Source www.bbc.co.uk As soft rock, such as glacial till, is more susceptible to erosion it erodes more rapidly than more resistant rock such as chalk. Concordant coastlines tend to have fewer bays and headlands. What are the three processes that shape the coastline? 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 . 0. lulworth cove concordant coastline. 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. 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. They are more common in winterthan in the summer. CAVES, ARCHES, STACKS AND STUMPS These are found on headlands where wave refraction means that erosion takes place on both sides of the headland. Straight coastline now formed by a concordant band of constant chalk. Elsewhere a ridge of sand forms a line of barrier islands, sand banks and mud flats parallel to the coast, e..g Friesian Islands off the North Sea coast of the Netherlands, Germany and western Denmark. What factors affect population density and distribution? More resistant strata erode only slowly, and are left projecting into the sea as headlands. Headlands are formed when the sea attacks a section of coast with alternating horizontal bands of hard and soft rock. BBC Bitesize. Landscapes. South Dorset Coast 1. Be perfectly prepared on time with an individual plan. shale), eroding quicker than the hard, resistant rock (e.g. The Jurassic Coast begins at Orcombe . Extreme weather in the UK Beast from the East, Extreme Weather in the UK Summer Heatwave 2018. What are the differences in global calorie intake and food supply? How has rainforest vegetation adapted to the climate? The northern part is Eocene clay (Barton Beds), including significant deposits of Purbeck Ball Clay. Emergent Coastlines. Cliffs and Wave-cut platforms Before you revise the formation of these landforms, have a look at this video and make sure you are able to identify the landforms from their distinctive features. When the following wave breaks, its swash will deposit more material without it being 'captured' by the backwash of the preceding wave. Which of the following are associated with discordant coastlines? Humans, too, could almost be classified as a coastal species! Concordant coastlines tend to have fewer bays and headlands. The coastline determines everything. A concordant coastline occurs where the bands of differing rock types run parallel to the coast. Sea level rise at the end of the Devensian Glacial overtopped the low points of the anticlines and the sea flooded synclines. Historic records indicate that over 250 m of land were lost between 1600 and 1850. We use cookies to ensure that we give you the best experience on our website. The concordant coastline runs from west to east along the south coast. In places such as Worbarrow Bay and St Oswald's Bay, lateral widening of coves led to them joining into a single bay, with remnants of the outer Portland left as a line of stumps parallel to the coast, e.g. (adsbygoogle = window.adsbygoogle || []).push({}); If you've found the resources on this page useful please consider making a secure donation via PayPal to support the development of the site. Coastal Erosion. The Bay is also a product of sea level rise, since river erosion cut a low-relief river valley into Carboniferous Limestone, allowing the sea to flood inland and creating a ria at the start of the Holocene. A chalk cliff face is at the back of the cove. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The meanings of the terms lithology, concordant and discordant coastlines are apparent throughout the lesson. BBC Bitesize. Safe access points to the shoreline at several points around the edge. Fjords are created when glaciers cut through valleys and are submerged. Aqa. They form as a ledge of bedrock left behind as the dliff retreats. 8. Case studies Dorset Jurassic coast and Holderness. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . They are, for the time being, out of reach of the current wave action and will therefore not be affected by them. material at the coast and in a river. it gained popularity because it preserved beach resources and avoided the negative effects of hard structures.Instead, nourishment creates a "soft" (i.e., non-permanent) structure by creating a larger sand reservoir, pushing the shoreline seaward. Fig. What challenges have been caused by urban growth in Mumbai? Shaping our coasts. The three major coastal processes include erosion, transportation and deposition. They are most common where .. is short. Free and expert-verified textbook solutions. Where are the areas of water deficit and surplus in the UK? What are the air masses that affect the UK? 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. The processes have been operating over the last 8000 years. Use the images below to explore related quizzes. How is urban planning improving the quality of life for the urban poor in Rio de Janeiro? . coastal landforms, any of the relief features present along any coast, the result of a combination of processes, sediments, and the geology of the coast itself. Originally a band of resistant Portland . The Holderness Coastline is in the North of England and runs between the Humber Estuary in the south and a headland at Flamborough head. Waves interact with land through three major marine processes: erosion, transportation, and deposition. $14 million dollar house maine; Tectonic forces produced by the collision of African and Eurasian plates compressed Carboniferous Limestone during the Alpine Orogeny 50 million years ago. The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. For example, this could be a joint in chalk. The meanings of the terms lithology, concordant and discordant coastlines are apparent throughout the lesson. The outer hard provides a protective barrier to erosion of the softer rocks further inland. Concordant coastlines tend to have fewer bays . The geology of the Isle is complex. How is demand for energy changing in the UK? The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. Copyright2007 - 2023 Revision World Networks Ltd. Nie wieder prokastinieren mit unseren Lernerinnerungen. . Explore. Correct! The shape of the cove is the result of wave diffraction. Over 10 million students from across the world are already learning smarter. Students will learn about the different types of erosion at the coast and will be able to explain how they create coastal landforms. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Economic opportunities and challenges in Lagos. Start studying BBC Geography Bitesize: Coastal Processes. A concordant coastline diminated by limestone in the map has the same type of rock along its length. These are coastlines where the bands of rock run perpendicular to the coastline meaning . That is, if both the row and column index move in the same direction - both increase or both decrease, then the pair is concordant. There are two special types of submerged coastlines: ria coasts and fjord coasts. Concordant and discordant coastlines. More resistant Jurassic Portland Limestone forms the Peveril Point headland to the south, projecting out by 1 km. Geological structure is the characteristics and arrangement of rock units. In accordance with UNCLAS, territorial waters extend 12 nautical miles from the baseline. Key Question: What are the different landforms of the Jurassic Coast? In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. They have a. gradient, typically under . The coastal engineering for the shoreline protection involves: . The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . What is the impact of humans on the desert? The coastline between Durlston Head and Studland Bay in Dorset, UK, is a great example of a discordant coastline. Soft engineering: Beach nourishment is a type of soft approach. PBworks / Help Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. A concordant coastline is an arrangement of rock strata along the coastline. This quiz focusses in particular on those features which are caused by coastal erosion. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. 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 . Watch popular content from the following creators: ambs(@aambersaunders), Revision(@lastminstudies), - (@alevelhelp.32), GCSE revision 2022(@revision.2022), BBC Bitesize(@bbcbitesize), Revision(@lastminstudies), Revision . Aqa. 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. How has hot desert vegetation adapted to the climate? 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. Coastal Environments CPD - Erosional Landforms, Coastal Management and Fieldwork on the Holderness Coast; Coastal Environments CPD - Erosional Erosion, Coastal Management, Deposition and Fieldwork on the Holderness Coast . 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. Correct! Protection of cold environments as wilderness areas. False! Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . What is Nigerias location and importance? The swash of a destructive wave is much weaker than its backwash. The hard rock acts as a protective barrier to the softer rock behind it preventing erosion. Waves are produced by friction between the wind and water, resulting in an energy transfer from the wind to the sea. Create the most beautiful study materials using our templates. The water. caused by the shrinkage of igneous rock as it cools. They are also called spilling or surging waves. Create flashcards in notes completely automatically. It has a discordant coastline along the east and concordant coastline along the south. Concordant. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. Long spits of sands run parallel to the low coast, enclosing the coast. Changing rates of rainforest deforestation. Which of the following is NOT typically found in a coastal ecosystem? Introduction to the location of the Delta. Caves, arches, stacks and stumps Weathering and erosion can create caves, arches, stacks and stumps along a headland.