concordant and discordant coastlines bbc bitesize

Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. How has urbanisation helped Nigeria to develop? 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. One of the topics looked at in GCSE Geography is the features that are found on a coastline. discordant coastline diagram. 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. concordant and discordant coastlines bbc bitesize - hillsboro, ohio newspaper classifieds - hillsboro, ohio newspaper classifieds - Concordant Coasts . How does geology affect the formation of river landforms? Published by at February 16, 2022. What is a discordant coastline? concordant and discordant coastlines bbc bitesize Call us (+254) 722 22 99 44 Email polucon@polucon.com Our Laboratories Nairobi & Mombasa washington sports club glover park Home Services concordant and discordant coastlines bbc bitesize Micro-Biology Services Agri - Services Instrumentation Division Environment Division Petroleum Division If you've been to the beach, you've been to a coastline! It has the unenviable reputation as the number one place in Europe for coastal erosion, and in a stormy year waves from the North sea can remove between 7 and 10m of coastline. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . Gcse Geography Revision. What are the environmental impacts of economic development in Nigeria? 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. Strata are different layers (or beds) of rock. Start studying BBC Geography Bitesize: Coastal Processes. What is the distance between trough and crest called? Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. Erosion Sea forces change coastal landscapes with the wind being the major source of waves. How does flooding affect humans and the environment? Fun Fact: if you are interested in dinosaurs and dinosaur fossils, Durlston Bay is a renowned site for Early Cretaceous fossils. Jamaica Case Study, How can the growth of tourism reduce the development gap? They have low energy and an elliptical orbit. The hard rock that forms Lulworth Cove is called the Portland limestone and chalk whereas the soft rock is clay. Sediment Cells. Beach Headland Blowhole Wave cut platform 9. A concordant coastline comprises bands of different rock types that run parallel to the shore. This lesson was designed initially for an interview, and worked really well for a 50 minute lesson duration. The part of the wave in the deeper water moves forward faster causing the wave to bend. Sea forces change coastal landscapes with the wind being the major source of waves. 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. The angle these bands make with the coastline makes it either a concordant or discordant coastline. They are, for the time being, out of reach of the current wave action and will therefore not be affected by them. Concordant coastlines tend to have fewer bays and headlands. 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 . Terms of use / Privacy policy / GDPR, About this workspace This. The Jurassic Coast begins at Orcombe . Concordant coastlines - A coastline parallel to the land structures which form the margin of an ocean basin. concordant coastlines. Wrong! What are the effects of deforestation in the Amazon? She is cooler than I am and has a life instead of enough time to make this. caused by the shrinkage of igneous rock as it cools. When a stretch of coastline is formed from different types of rock, headlands and bays can form. On a discordant coastline, alternating layers of hard and soft rock are perpendicular to the coast. This quiz focusses in particular on those features which are caused by coastal erosion. Waves in the middle of the bay, where the water is deeper, do not lose velocity as . 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 ). True or False: Ria coastlines and Dalmatian landforms are both associated with submergent coastlines. Unique access to harvest all resources within the EEZ, including fishing and fracking. Okay, now we know what coastlines are. Use the images below to explore related quizzes. In contrast with emergent coastlines, submergent coastlines are coastlines submerged under water due to rising sea levels. Large colonies of sea lions and seals sleep and breed along coastlines, entering the seas to hunt. Constructed by Australian soldiers over the course of 13 years and officially opened in 1932, the Great Ocean Road is dedicated to fallen soldiers of . Concordant coastline Uncordant coastline Variable coastline 8. Soft engineering: Beach nourishment is a type of soft approach. Find this Pin and more on KS4 Changing Landscapes of the UK by Mr Haden. Subsequently there was an increase in the waters of the oceans and the sea level rose appreciably. Aqa. The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. Discordant coasts have a crenellated pattern of projecting headlands and indented bays. Copyright2007 - 2023 Revision World Networks Ltd. Faulting is the fracturing of rock with movement from its original position. . 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 . 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. Erosional landforms - Coastal landforms - AQA - GCSE Geography Revision - AQA - BBC Bitesize. 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. A coastline is an area where land meets the water. Fig. The soft rock is made of clay and sands, and the hard rock is chalk and limestone. Try Dokkio Sidebar for free. If you continue to use this site we will assume that you are happy with it. pptx, 1.58 MB. The discordant coastline runs from Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. Many of the major cities built directly along coastlines, such as New York City and Tokyo, will be forced to develop solutions that counter rising sea levels or else abandon waterfront infrastructures and construct further inland. The length of perimeter approx 2km. If the direction of the classification is not the same . 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. 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. 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. 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). The warmer climate that followed melted much of the ice. For example, both X and Y rate item 1 higher than item 2. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. Concordant and discordant coastlines. Even London is built along the River Thames, which flows into the North Sea. Bays and headlands are common features along discordant coastlines. Hilbre Island (Cheshire) is an example of a possible fieldwork location. Then when the wave retreats, the compressed air expands again. - Internet Geography What is a concordant coastline? A concordant coastline with resistant Portland Limestone forming a protective stratum parallel to the sea. The image below shows how the refracted wave becomes increasingly parallel to the shoreline. Discordant coastlines have bands of different rock types running perpendicular to the coast; concordant coastlines have bands of similar rock types running parallel to the coast. About 40% of the global population lives within 100km of a coastline. A bedding plane is the interface between two sedimentary strata. How have animals adapted to the rainforest environment? Waves are created as wind blows over the water causing friction; this causes the water to start to move in a circular orbit. The three major coastal processes include erosion, transportation and deposition. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. 2022 kinetico replacement filters, on concordant and discordant coastlines bbc bitesize, williams funeral home st thomas ont obits, Fix Toxic Relationship According To Childhood Trauma Test, Is It Illegal To Sleep In Your Car In Virginia, la crosse aquinas high school live stream, 707 concourse village west housing connect, do you have to transcribe stutters? The longer the fetch length and the faster the wind speed, the . Landscapes. Add in the missing words. Concordant coastlines tend to have fewer bays . Along the coastline of Dorset, there are concordant and discordant coastlines. Hydraulic action, attrition, abrasion, and corrosion. Opportunities and Challenges in the Sahara Desert, Opportunities and Challenges in the Thar Desert, Opportunities and Challenges in the Western Desert. Fjords are created when glaciers cut through valleys and are submerged. It has a variety of other micro-features and a unique geology. Human actions and Physical factors affecting the Delta. This differential erosion creates headlands and bays along discordant coastlines. This cove is located near the village of West Lulworth and is one of the best examples of a concordant coastline. Geology is the study of the types of rocks that make up the Earth's crust. What is the impact of humans on the Taiga? 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. A concordant coastline diminated by limestone in the map has the same type of rock along its length. Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. Beach material is deposited as a bridge of sediment (berm) at the top of the beach. Less resistant rocks are eroded more than the resistant . Castleton A tourist honey pot in The Peak District, Case Study Inner City Redevelopment Londons Docklands. GCSE 9-1 Coasts: Erosional Landforms Bundle. Tunisia Case Study. How far out to territorial waters extend from the coast (or baseline)? The Jurassic Coast begins at Orcombe . Specifically looking at the differences between concordant and discordant coastlines. Paw Patrol Does Ryder Have A Crush On Katie, Discordant These are where rock strata or structures are aligned at an angle to the coastline. The low-energy wave spills into the bays as . This is called a discordant coastline. A wave-cut notch is created by erosional processes such . The updated BBC Bitesize website has a great video on . Gone surfing? Discordant These are where rock strata or structures are aligned at an angle to the coastline. Test your knowledge with gamified quizzes. Label two landforms shown in the photograph (2) Coasts - Grade Booster. Portland limestone erodes very slowly, retreating landwards by marine undercutting and collapse to form a straight W-E coastline. Coasts Revision Booklet. How is demand for energy changing in the UK? Select all that apply. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. Concordant and discordant coastlines Caves, arches, stacks and stumps Caves, arches, stacks and stumps are all features of a weathering or erosion process at different stages. These will be exam question style ranging from 4, 6 and 9 mark . Insert links to other pages or uploaded files. Concordant coastline. What is the location and importance of Rio de Janeiro? The coastline determines everything. How did the temperate deciduous woodland get like this? - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. Concordant or conformable, when referring to plutonic bodies, indicates that the intruding magma of sills and laccoliths lies parallel to rather than cutting across country strata, as do discordant structures such as veins, dikes, bysmoliths, and batholiths. Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. Chucky Trill Net Worth 2020. South Dorset Coast 1. Gradually the material is moved along the coastline, its . . What are the impacts of industry on the physical environment? This produces lines of narrow islands parallel to the coast formed by projecting sections of anticlines. 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 . Their wavelength is .and a.. frequency (8-10 waves per minute). 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 If you have, then you've been to a coast and walked along a coastline. How has demand for water in the UK changed? Extreme weather in the UK Beast from the East, Extreme Weather in the UK Summer Heatwave 2018. Headlands and bays Cliffs along the coastline do not erode at the same pace. Discordant coasts have a crenellated pattern of projecting headlands and indented bays. Economic losses to businesses if areas become unattractive and depopulated. Secondly, erosion of concordant coastlines results in the formation of coves while the erosion of discordant coastlines results in headlands and bays. When a stretch of coastline is formed from. The United Nations uses coastlines to help determine international boundaries at sea. Free and expert-verified textbook solutions. Bands of soft rock such as clay and sand are weaker therefore can be eroded quickly. Waves interact with land through three major marine processes: erosion, transportation, and deposition. 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. 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. Lerne mit deinen Freunden und bleibe auf dem richtigen Kurs mit deinen persnlichen Lernstatistiken. The Jurassic Coast is a world-renowned site where you can find geological (natural) features, and different types of fossils, such as dinosaurs and a fossil forest. Wrong! Meanwhile on concordant coastlines, where layers of rock run parallel to the coastline, cliffs are much more dominant. These Dalmatian types normally occur . While discordant coastlines have bands of different rock types running perpendicular to the coast, concordant coastlines have bands of similar rock types running parallel (alongside) to the coast. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. Historic records indicate that over 250 m of land were lost between 1600 and 1850. Bits of rock and sand that the waves have picked up are thrown against the cliff face. English: - Romeo and Juliet (York Notes) 978-1447982234 An Inspector Calls (York Notes) 978-1447982166 GCSE English Literature for AQA . What are the physical characteristics of cold environments? Concordant and discordant coastlines Caves, arches, stacks and stumps Caves, arches, stacks and stumps are all features of a weathering or erosion process at different stages. During a storm, the most common waves are destructive. A discordant coastline occurs where bands of different rock type run perpendicular to the coast. Waves can be gentle and infrequent or more significant, more frequent, and more powerful. 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. 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. Dip is the angle of inclination of titled strata. How do weather and climate affect river landscapes? The four major types of coastlines are emergent coastlines; submergent coastlines; concordant coastlines; and discordant coastlines. Examples of discordant coastlines are Bantry Bay and Dingle Bay found in Ireland while an example of a concordant coastline is Lulworth Cove. Soft engineering: Beach nourishment is a type of soft approach. Upload unlimited documents and save them online. Great Ocean Road, Australia. North of Swanage, the chalk outcrop creates the headland which includes Old Harry Rocks. Headlands and Bays 2. What are the different types of weathering? Figure 3: Location of Lulworth Cove, Dorset, UK, map data: 2022 Google. Ways destructive waves destroy the coastline . BBC Bitesize. Create your own unique website with customizable templates. Deformation is the degree of tilting of folding ofrock. Why is the Human Development Index important? shale), eroding quicker than the hard, resistant rock (e.g. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. The outer hard provides a protective barrier to erosion of the softer rocks further inland. Where the land rises to the sea there are several parallel strata of Jurassic rocks, including Portland limestone and the . The sea attacks a weakness in the base of the cliff. 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 ). When a wave breaks upon the shore, rocks and pebbles that are being carried collide with each other breaking them and eventually making them smaller and smoother. Safe access points to the shoreline at several points around the edge. - Headlands form along discordant coastlines in which bands of soft and hard rock outcrop at right angles to the coastline. The northern part is Eocene clay (Barton Beds), including significant deposits of Purbeck Ball Clay. Because the waves are so frequent, the backwash has less time to soak into the sand. Sign up to highlight and take notes. How has the vegetation in the temperate deciduous forest adapted to the climate? 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. discordant coastlines. 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. The sea attacks a weakness in the base of the cliff. The relative resistance of rock types influences the degree of indentation of bays. Introduction to the location of the Delta. Concordant and discordant coasts . how to change text duration on reels. The process of erosion can create different landforms along the coastline. Discordant These are where rock strata or structures are aligned at an angle to the coastline. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. 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. More resistant Jurassic Portland Limestone forms the Peveril Point headland to the south, projecting out by 1 km. The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. There are four major types of coastlines: emergent, submergent, discordant, and concordant. Approximately 40% of all people live within 100km of a coastline. Find out more about concordant coastlines. Case studies Dorset Jurassic coast and Holderness. The sea has broken through this barrier and easily eroded the clays behind it. Ria coastlines are a type of submergent coastline, but Dalmation landforms are associated with concordant coastlines. What is the value of the tropical rainforest? Concordant Coasts . There are different bands of rock that have shaped this discordant coastline, namely: Fig. 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. Risks facing the Delta. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. Historic records indicate that over 250 m of land were lost between 1600 and 1850. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . The Early Cretaceous, sometimes known as Lower Cretaceous, is the period stretching from 145 million years ago to 100.5 million years ago. Assessment week 2 (WB 24th February 2020) - End of unit test - Physical landscapes of the UK. A concordant coastline comprises bands of different rock types that run parallel to the shore. . What are shanty town improvement schemes? 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. The rock strata are almost vertical, and the bands of rock are quite narrow. Practice Questions: Slideshow 2773107 by chanel Coasts Revision Booklet. During the Devensian glacial the sea level was about 100 m lower than today as water was retained in huge ice sheets. Both concordant and discordant. This process happens over thousands of years. Coastlines of Emergence. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). Discordant. What percent of the global population lives within 100km of a coastline? Concordant coastline 2. What is a discordant coastline? More erosion at the present (2016-2017) is occurring further east, down drift, in the Barton Golf Course and Hordle Cliff area, as a result of the Barton Sea Defences (the so-called "Terminal . A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. Click To Play 1. geography revision coastal landforms 264.4K views Discover short videos related to geography revision coastal landforms on TikTok. Less resistant Purbeck limestone and Wealden Clay lie behind the Portland, with resistant chalk further north. Sea level rise at the end of the Devensian Glacial overtopped the low points of the anticlines and the sea flooded synclines. The latter can happen when tectonic forces lowered the land level or when river deposits and compaction of alluvial (river) sediments occur. What are active, dormant and extinct volcanoes? As a result of the coastal feature, the depth of water around a coast varies. Why Is Biodiversity Critical To Life On Earth? Along the coastline of Dorset, there are concordant and discordant coastlines. Shaping our coasts. Discordant coastlines form where geology alternates between bands of hard and soft rock (see image below). 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. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. We support the next generation of geographers and geoscientists, with inspiring educational videos for secondary school students and teachers. Specifically looking at the differences between concordant and discordant coastlines. Geological structure is the characteristics and arrangement of rock units. Numerous plants and animals have adapted to live along coastlines. True or False: Concordant coastlines form coves. The coast is the border between the land and the sea. They are more common in . Economic opportunities and challenges in Lagos. If they move in opposite directions - one increases while the other decreases - then the pair is discordant. What does scenery formed by erosion look like? 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 . Two Earthquakes Compared Nepal and LAquila, Lombok Indonesia Earthquake 2018 Case Study, 2018 Sulawesi Indonesia Earthquake and Tsunami Case Study. Emergent coastlines happen when either the water level has fallen or the land has risen. While there are fjords all over the world, the most renowned fjord coasts are in Norway--and in fact, "fjord" is a Norwegian word. 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. Many of these types of coastlines were actually formed toward the end of the Last Glacial Period (LGP). A case study of the coastal recession at the Nile Delta for Edexcel A Level Geography. As stated earlier, coves are formed out of concordant coastlines. The results are deep, lengthy, thin inlets surrounded by high cliff faces. 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. . If you've found the resources on this site useful please consider making a secure donation via PayPal to support the development of the site. As a result, it does not travel far up it. Coastlines are formed through the processes of erosion, transportation, and deposition. If you are citizen of an European Union member nation, you may not use this service unless you are at least 16 years old. 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. (bands) of hard rock and soft rock; many bays and headlands. Named after the Dalmatia region on the Adriatic Sea. As a wave undercuts a cliff the cliff retreats. Originally a band of resistant Portland . Waves are the main reason for coastal change. Concordant. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. Worksheets with answers provided that guide students through sequencing each landform with the emphasis on process detail and geology. Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. Caves, Arches, Stacks and Sumps 3. On discordant coastlines, differential erosion may occur, where bands of hard and soft rock outcrop at right angles to the sea.

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