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. The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. What is the impact of humans on the desert? material at the coast and in a river. Within geography, the definition of a coastline is the area where land meets water. That is, if both the row and column index move in the same direction - both increase or both decrease, then the pair is concordant. The relative resistance of rock types influences the degree of indentation of bays. May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. Great Ocean Road, Australia. Students will learn about different types of rock and will consider how resistance can affect rates of erosion. When a stretch of coastline is formed from. Full lesson covering the different types of erosion and geology along the coast. pptx, 1.58 MB. The Dalmatian type, named from Dalmatia on the Adriatic Sea, features long offshore islands and coastal inlets that are parallel to the coastline. A concordant coastline diminated by limestone in the map has the same type of rock along its length. Or in other words, these types of coastlines have the same type of rock all along its length. Coasts Revision Booklet. Over 10 million students from across the world are already learning smarter. What are active, dormant and extinct volcanoes? - Internet Geography What is a concordant coastline? Because the waves are so frequent, the backwash has less time to soak into the sand. Erosion. Emergent coastlines can have features such as marine terraces, relict sea cliffs, sea stacks, and raised beaches. Less resistant Purbeck limestone and Wealden Clay lie behind the Portland, with resistant chalk further north. . Importance of the Delta for the region. Resistant Cretaceous Chalk forms the Foreland headland, projecting 2.5 km to the north. 2. Straight coastline now formed by a concordant band of constant chalk. . These processes are happening constantly and usually work in conjunction to produce coastal features. Hilbre Island (Cheshire) is an example of a possible fieldwork location. Categories . Discordant coasts have a crenellated pattern of projecting headlands and indented bays. Why is the Human Development Index important? 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. Discordant These are where rock strata or structures are aligned at an angle to the coastline. Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. Whenever you search in PBworks, Dokkio Sidebar (from the makers of PBworks) will run the same search in your Drive, Dropbox, OneDrive, Gmail, and Slack. Bays and headlands are common features along discordant coastlines. More recently the village was affected by the tragic floods of 1953 that claimed the lives of 76 Norfolk . Use the resources provided to write notes that Wave Refraction and Coastal Defences. GCSE AQA 9-1 Coasts : The Formation of Headlands and Bays. Earn points, unlock badges and level up while studying. The following are facts about destructive waves. a ks3 unit work consisting of 7 complete lessons covering coasts: lesson 1 - introduction to uk physical landscapes lesson 2 - characteristics of ocean waves lesson 3 - erosion and geology lesson 4 - erosional landforms lesson 5 - transport and deposition lesson 6 - weathering and mass movement lesson 7 - coastal management decision making task Small particles are carried along by the water. Rocks outcrop at right angles to the sea, forming headlands and bays. The high degree of indentation of Bantry Bay is not solely influenced by the relative resistance of rock types, but also the orientation of strata SW-NE means that they directly face high energy Atlantic waves driven by the prevailing SW wind. Copyright2007 - 2023 Revision World Networks Ltd. Waves drag in the shallow water approaching a headland so the wave becomes high, steep and short. Where the rock outcrops run parallel to the sea. 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. Jamaica Case Study, How can the growth of tourism reduce the development gap? The rock strata are almost vertical, and the bands of rock are quite narrow. What is the location and importance of Mumbai? Today. Soft engineering: Beach nourishment is a type of soft approach. Fjords are created when glaciers cut through valleys and are submerged. Discordant coastlines occur when bands of different types of rocks run perpendicular (at 90 degrees) to the coast. How has rainforest vegetation adapted to the climate? Water quality and pollution management in the UK. Changing rates of rainforest deforestation. We use cookies to ensure that we give you the best experience on our website. Fun Fact: if you are interested in dinosaurs and dinosaur fossils, Durlston Bay is a renowned site for Early Cretaceous fossils. In contrast with emergent coastlines, submergent coastlines are coastlines submerged under water due to rising sea levels. What is a concordant coastline? Each process can produce several coastal features; however, they often work together to sculpt the coastlines. Case studies Dorset Jurassic coast and Holderness Extended writing tasks 2 a half term. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Concordant coastlines tend to have fewer bays and headlands. Using examples examine the differences between discordant and concordant coastlines (with diagrams) (8) Coasts - Grade Booster Using examples, examine the physical factors that can influence how fast a coastline can erode (8) Coasts - Grade Booster Examine how soft engineering could prevent coastal erosion. Paisajes. Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant. 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. Coastlines of Emergence. When a stretch of coastline is formed from different types of rock, headlands and bays can form. The differing resistance to erosion leads to the formation of headlands and bays. 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. Why is the weather of the UK so changeable? Lulworth Cove is a World Heritage site and part of the Heritage Coastline. Coasts can be classified in a variety of . Discordant and concordant coasts in Dorset. Coastlines: Geography Definition, Types & Facts | StudySmarter Shingle ridge reconnected island of Portland Bill to land (a tombolo). - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. The coastline between Durlston Head and Studland Bay in Dorset, UK, is a great example of a discordant coastline. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. North of Swanage, the chalk outcrop creates the headland which includes Old Harry Rocks. 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. Sustainable development in the Temperate Deciduous Woodland. 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. Numerous plants and animals have adapted to live along coastlines. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . Along the coastline of Dorset, there are concordant and discordant coastlines. Which of the following is NOT a major process through which waves shape the coast? The concordant coastline runs from west to east along the south coast. The water. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. 3.1B Transport Technology and Globalisation, 3.2 Political and Economic Decision Making, 7C Economic Development and Environmental Impact, 8B Controlling the Spread of Globlisation, 4A.1B Economic Activity and Social Factors, 4A.1A Changing Function and Characteristics, 4A.6 Evaluating the need for Regeneration, 6C Representation and Need for Regeneration, 10A Measuring the Success of Regeneration, 12A Restructuring and Contested Decisions, 7.5 Superpowers and International Decision Making, 7.6 Superpowers and the Physical Environment, 7.6C Middle-Class Consumption on Emerging Powers, 7.8A Emerging Powers and the Developing World, 8.2 Variations in Health and Life Expectancy, 8.3A The relationship between economic and social development, 8.5A Human Rights Vs Economic Development, 8.8 the Positive and Negative of Development, 2B.2C Geological Structure and Cliff Profiles, 2B.3B Rock Strata and Complex Cliff Profiles, 4C Coastal Landscapes Produced by Erosion, 8C Temporal Variations in Coastal Recession, 9A Local Factors that Increase Coastal Flood Risk, A - Economic and Social Losses from Recession, 2B: 12 Integrated Coastal Zone Management, 1B Importance and Size of Stores and Fluxes, 5.4 Deficits within the Hydrological Cycle, 5.8 Consequences and Risks of Water Insecurity, 8A - Causes and Pattern of Physical and Economic Scarcity, 5.9C Integrated Drainage Basin Management, 6.1C - Geological Processes Releasing Carbon, 6.2 Biological Processes Sequestering Carbon, 6.3 Human Activity Altering the Carbon Cycle, 6.6C Radical Technologies to Reduce Carbon Emissions, 6.7 Human Activity Threatening the Carbon and Water Cycles. Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. 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. CAVES, ARCHES, STACKS AND STUMPS These are found on headlands where wave refraction means that erosion takes place on both sides of the headland. Over time, waves beating against the shore will wear it down (or erode it). Tip: To turn text into a link, highlight the text, then click on a page or file from the list above. Bull's Head in St Oswald's Bay. Even London is built along the River Thames, which flows into the North Sea. Explore. The warmer climate that followed melted much of the ice. A joint is a fracture of rock without movement from the original position, e.g. A case study of a sparsely populated area Himalayan Mountains, A case study of a densely populated area Greater London. Concordant coastline - Wikipedia Concordant and discordant coastlines. PSYCHIC TWINS . pptx, 1.58 MB. Dip is the angle of inclination of titled strata. Sign up to highlight and take notes. Paired spits formed parallel to the coast with haff lagoon behind at the mouth of the River Vistula in Gdansk. Originally a band of resistant Portland . Waves move up and down there is no horizontal movement. Concordant. Concordant coastline 2. 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. Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. Lulworth Cove and Stair Hole, with narrow openings, widening laterally parallel to the coast. Approximately 40% of all people live within 100km of a coastline. Importance of the Delta for the region. If the direction of the classification is not the same . Opportunities and Challenges in the Sahara Desert, Opportunities and Challenges in the Thar Desert, Opportunities and Challenges in the Western Desert. As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. Lulworth . Try Dokkio Sidebar for free. The angle these bands make with the coastline makes it either a concordant or discordant coastline. How have animals adapted to cold environments? Their wavelength is long and a low frequency (8-10 waves per minute). What is the distance between trough and crest called? Concordant and discordant coasts . concordant coastlines. Best study tips and tricks for your exams. Landforms in the middle course of a river. Beach material is deposited as a bridge of sediment (berm) at the top of the beach. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. The difference in rock types between discordant and concordant coastlines means that there are differences in erosion. These will be exam question style ranging from 4, 6 and 9 mark questions. 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. What is the difference between a discordant and concordant coastline Concordant coastlines tend to have fewer bays and headlands. B Gradually the . This means that these waves transport beach material back into the sea, lowering the height of a beach. Bits of rock and sand that the waves have picked up are thrown against the cliff face. Which landforms result from moving or melting ice? GCSE Geography Coastal landscapes in the UK learning resources for adults, children, parents and teachers. Ways destructive waves destroy the coastline . 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. Where are the areas of water deficit and surplus in the UK? A concordant coastline is an arrangement of rock strata along the coastline. Concordant coastlines are characterised by bands of similar types of rocks running parallel to the coast. 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. If the direction of classifications is the same, the pairs are concordant. shale), eroding quicker than the hard, resistant rock (e.g. Friction with the sea bed as waves approach the shore causes the wave front to become distorted or refracted as velocity is reduced. 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). . Human actions and Physical factors affecting the Delta. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. The site is self-funded and your support is really appreciated. While not every UN member has ratified UNCLAS, most nations abide by it anyway. As we mentioned earlier, this tends to shift the coastline further inland. A discordant coastline occurs where bands of different rock type run perpendicular to the coast. A concordant coastline is where the same rock runs along the length of the coast. This happened over about 1000 years, (very rapid) and submerged coastlines. 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. Originally a band of resistant Portland . South Dorset Coast Dalmatian coastline Formed by faulting and rising sea levels since the end of the last ice age West Cork, Ireland 1.Discordant Coastline 2.Rias Rock strata meets the coast at 90 degrees in parallel bands Weaker rocks (limestones) have been eroded creating long, thin bays (rias) in-between the mudstones and old . The longer the fetch length and the faster the wind speed, the . PDF Coasts Case Studies - SchoolGeography 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. True or False: Concordant coastlines form coves. What are concordant and discordant pairs? - Minitab The image below shows how the refracted wave becomes increasingly parallel to the shoreline. The bands of soft rock, such as sand . What percent of the global population lives within 100km of a coastline? The part of the wave in the deeper water moves forward faster causing the wave to bend. What feature is left behind as the cliff retreats? 3 Revision Guides Business Studies: - Revise Edexcel GCSE Business, Units 1, 3 & 5 Revision Guide Revise Edexcel GCSE Business, Units 1, 3 & 5 Revision workbook Computing: - Students have already been provided with a revision guide and question books. The UK's coastline is 31,368 km long (if you include all the main islands). Lines of islands separated by narrow sea channels parallel to the coast (sounds). Consequently, the water from the sea sweeps away the soft rocks leaving behind a circular land formation known as a cove. The Early Cretaceous, sometimes known as Lower Cretaceous, is the period stretching from 145 million years ago to 100.5 million years ago. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). BBC Bitesize. GCSE and A Level Geography Revision. What are they? BBC Bitesize Geoguessr Google Maps Gapminder . Many of these types of coastlines were actually formed toward the end of the Last Glacial Period (LGP). Add in the missing words. Coastal Erosion - Geography AS A fjord coast hosts multiple fjords. A coastline with the same type of rock along its length; fewer bays and headlands. Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. Discordant coastline . Where are polar and tundra environments located? Highly popular with tourists - 20,00 people on the spit at peak times (the Environment Agency concluded that between 18th August and the 12th December 2004, 487,624 visitors visited Dawlish Warren equating . More resistant Jurassic Portland Limestone forms the Peveril Point headland to the south, projecting out by 1 km. What are the effects of deforestation in the Amazon? What are the impacts of industry on the physical environment? How does flooding affect humans and the environment? Quick revise. An explanation of the formation of the cove can be found on the right. Discordant These are where rock strata or structures are aligned at an angle to the coastline. Development, population change and the demographic transition model, Strategies for reducing the development gap, How can the growth of tourism reduce the development gap? Swam in the ocean? 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 . Beach Headland Blowhole Wave cut platform 9. What are the economic and environmental issues of energy production? Coastlines, where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines. This happened over about 1000 years, (very rapid) and submerged coastlines. Discordant and Concordant Coastlines GCSE Geography A Level - YouTube 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. 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. 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 ). What is the site and situation of a settlement? B Gradually the . Case studies Dorset Jurassic coast and Holderness. As the wave approaches the coast, it gains height and drops onto a steep beach. concordant and discordant coastlines bbc bitesize May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. A case study of the coastal recession at the Nile Delta for Edexcel A Level Geography. It is only when the water enters shallower areas that the water itself moves forward. Identify the physical process that has shaped the pebble (1) Coasts - Grade Booster. Headlands and bays can form on concordant coastlines too, as has happened . This is where waves approach the cliff; air may become trapped and compressed in joints and cracks along a cliff face. A concordant coastline is an arrangement of rock strata along the coastline. It is a valuable habitat for birds and plants eg a wide array of wading birds like the avocet. The low-energy wave spills into the bays as . Anak Krakatau & Sunda Strait Tsunami Indonesia Case Study 2018. A coastline with the same type of rock along its length; fewer bays and headlands . GCSE Geography Revision : Unit 1: The Coastal Zone - Blogger Ordinal trends and finding concordant and discordant pairs docx, 24.88 KB. This belongs to: _____. 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. Gone surfing? False! Their wavelength is .and a.. frequency (8-10 waves per minute). Describe the characteristics of destructive waves (3) Coasts - Grade Booster. 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. 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. How is a cold environment interdependent? The Earth has around 620,000 kilometres (390,000 mi) of coastline. Humans, too, could almost be classified as a coastal species! Emergent Coastlines. . 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. One of the topics looked at in GCSE Geography is the features that are found on a coastline. The meanings of the terms lithology, concordant and discordant coastlines are apparent throughout the lesson. What is the highest point of a wave called? Which type of underlying geology is most likely to be formed into straight cliffs? Gcse Geography Revision. How reliable are economic indicators of development? concordant and discordant coastlines bbc bitesize These are found in Haffs, also known as lagoons, on the Baltic Sea's southern shores. Explain the process of longshore drift (3) Coasts - Grade Booster. ALEVEL GEOGRAPHY - COASTAL LANDSCAPES | EQ1 : the littoral zone ; offshore, nearshore and backshore. South Dorset Coast 1. The Holderness Coastline is in the North of England and runs between the Humber Estuary in the south and a headland at Flamborough head. The latter can happen when tectonic forces lowered the land level or when river deposits and compaction of alluvial (river) sediments occur. Irrespective of whether the coastline is concordant or discordant, as wave refraction takes place around the headlands and erosion of the bay is reduced, sub-aerial weathering such as corrosion and corrasion begins to . Emergent coastlines happen when either the water level has fallen or the land has risen. This differential erosion creates headlands and bays along discordant coastlines. The first difference between concordant and discordant coastlines is that the concordant coastlines are composed of similar rock types whereas, in the case of discordant coastlines, the rocks are of different kinds. These are where rock strata or structures are aligned at an angle to the coastline. A bedding plane is the interface between two sedimentary strata. It has a discordant coastline along the east and concordant coastline along the south. What factors affect population density and distribution? 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). The Jurassic Coast begins at Orcombe . over 1m. 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 . The coastal environment of the world is made up of a wide variety of landforms manifested in a spectrum of sizes and shapes ranging from gently sloping beaches to high cliffs, yet coastal landforms are best considered in two broad . gcsegeographyatheathfield: Coasts Upload unlimited documents and save them online. How are Nigerias trading and political relationships changing? 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). We support the next generation of geographers and geoscientists, with inspiring educational videos for secondary school students and teachers. What are the environmental impacts of economic development in Nigeria? Safe access points to the shoreline at several points around the edge. geography revision coastal landforms 264.4K views Discover short videos related to geography revision coastal landforms on TikTok. What is the structure of the tropical rainforest? A concordant coastline produced by the geological structure of folds parallel to the coast. 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. Practice Questions: Slideshow 2773107 by chanel coastlines. Thus, a concordant coastline refers to a coastline that is made up of the same kinds of rocks and arranged parallel to the coast of the sea or ocean. Coastal Geology. Less resistant rocks are eroded more than the resistant .