concordant and discordant coastlines bbc bitesize

Rocks outcrop at right angles to the sea, forming headlands and bays. than in summer. Lulworth . 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 . How do changes affect the balance of an ecosystem? What is the distance between trough and crest called? 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. Select all that apply. Caves, arches, stacks and stumps Weathering and erosion can create caves, arches, stacks and stumps along a headland. Consequently headlands and bays form along discordant coastlines and whilst headlands remain exposed to the force of the waves, bays are sheltered. A concordant coastline produced by the geological structure of folds parallel to the coast. Specifically looking at the differences between concordant and discordant coastlines. If the direction of the classification is not the same . This produces lines of narrow islands parallel to the coast formed by projecting sections of anticlines. Erosional landforms - Coastal landforms - AQA - GCSE Geography Revision - AQA - BBC Bitesize. Soft rocks like mudstone and siltstone In addition, as waves approach a coast, they are refracted so that their energy is concentrated around headlands but reduced around bays. Their wavelength is .and a.. frequency (8-10 waves per minute). But do they serve as anything more than a place to go for a hike or a tan? How are Nigerias trading and political relationships changing? 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 . pg. Each process can produce several coastal features; however, they often work together to sculpt the 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. You need to do some work on landforms of coastal erosion. A concordant coastline diminated by limestone in the map has the same type of rock along its length. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. What is the impact of humans on the temperate deciduous woodland? The Jurassic Coast begins at Orcombe . These are found in Haffs, also known as lagoons, on the Baltic Sea's southern shores. 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 process begins with seawater hitting on the coastline. pptx, 1.58 MB. How has demand for water in the UK changed? 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. Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant. Case studies Dorset Jurassic coast and Holderness Extended writing tasks 2 a half term. For example, both X and Y rate item 1 higher than item 2. Coastlines are formed through the processes of erosion, transportation, and deposition. What are active, dormant and extinct volcanoes? A wave-cut notch is created by erosional processes such . Dip is the angle of inclination of titled strata. Will you pass the quiz? The significance of food, water and energy, An overview of global inequalities in the supply and consumption of resources, Carbon footprints, food miles and moves towards local sourcing of food. This means that these waves transport beach material back into the sea, lowering the height of a beach. 1. Add in the missing words. Type # 1. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Over 10 million students from across the world are already learning smarter. The fetch, often called the fetch length, is the length of water over which a given wind has blown. Students will learn about the different types of erosion at the coast and will be able to explain how they create coastal landforms. 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. Extended writing tasks 2 a half term. 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. BBC iPlayer 37k followers More information Discordant and concordant coasts in Dorset Find this Pin and more on KS4 Changing Landscapes of the UK by Mr Haden. Protection of cold environments as wilderness areas. When a stretch of coastline is formed from different types of rock, headlands and bays can form. Waves in the middle of the bay, where the water is deeper, do not lose velocity as . The results are deep, lengthy, thin inlets surrounded by high cliff faces. What does scenery formed by erosion look like? Erosion. A joint is a fracture of rock without movement from the original position, e.g. What are the social and economic opportunities associated with the growth of Rio? As a wave undercuts a cliff the cliff retreats. 1 - Approximate locations on the coastline between Durlston Head and Studland Bay, map data: 2022 Google. This is called a discordant coastline. They are most common where .. is short. (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. Over time, waves beating against the shore will wear it down (or erode it). What is Nigerias location and importance? 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. What is the site and situation of a settlement? There are 3 main groups of coastal features which result from coastal erosion: 1. 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. Concordant Coasts . 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. This continual process can weaken the joints and cracks in the cliff, causing pieces of rock to break off. Find out more about concordant coastlines. Originally a band of resistant Portland . By contrast, when the rock strata are perpendicular to the coastline, the coast is referred to as discordant. Emergent Coastlines. The coast is very young due to recent ice ages and resulting sea level change. Today. How reliable are economic indicators of development? An example of a popular cove situated in a concordant coastline is the Lulworth Cove. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). BBC Bitesize. 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 . The hard rock shields the soft rock from erosion. Correct! Concordant and discordant coasts . Faulting is the fracturing of rock with movement from its original position. As we mentioned earlier, this tends to shift the coastline further inland. Wave diffraction happens when the narrow opening to the cove causes the waves to bend, creating an arc shape wave. The geology of the Isle is complex. Discordant These are where rock strata or structures are aligned at an angle to the coastline. Stop procrastinating with our study reminders. A concordant coastline has the same type. What is a concordant coastline? Concordant. Sign up to highlight and take notes. How does food insecurity affect the environment? Subsequently there was an increase in the waters of the oceans and the sea level rose appreciably. CAVES, ARCHES, STACKS AND STUMPS These are found on headlands where wave refraction means that erosion takes place on both sides of the headland. Bull's Head in St Oswald's Bay. It is a valuable habitat for birds and plants eg a wide array of wading birds like the avocet. One of the topics looked at in GCSE Geography is the features that are found on a coastline. Coastlines, where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines. English: - Romeo and Juliet (York Notes) 978-1447982234 An Inspector Calls (York Notes) 978-1447982166 GCSE English Literature for AQA . The following are facts about constructive waves. Sustainable development in the desert The Great Green Wall. Where are Temperate Deciduous Woodlands Located? Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. Caves, Arches, Stacks and Sumps 3. Quick revise. The water. 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. Concordant coastlines tend to have fewer bays and headlands. Insert links to other pages or uploaded files. The procedure for calculating concordant and discordant pairs compares the classifications for two variables (for example, X and Y) on the same two items. The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. How far out to territorial waters extend from the coast (or baseline)? Concordant coastlines are also called 'concordant longitudinal' or 'Pacific type' coastlines. They are more common in winterthan in the summer. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. concordant and discordant coastlines 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. Identify your study strength and weaknesses. Many of our major cities have developed along oceanic coasts as well: think of New York City, Tokyo, Istanbul, Dubai, Hong Kong, and Copenhagen, just to name a few! Sustainable development in the Temperate Deciduous Woodland. Long spits of sands run parallel to the low coast, enclosing the coast. The image below shows how the refracted wave becomes increasingly parallel to the shoreline. The water, with an endless supply of waves, whether pounding or gentle ripples, is constantly changing coastlines around the globe. 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 . Have you ever gone for a stroll on a beach? [5] The arch has formed on a concordant coastline where bands of rock run parallel to the shoreline. Humans, too, could almost be classified as a coastal species! 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. In 1982, the United Nations held a Convention on the Law of the Sea (UNCLAS), where maritime (sea) boundaries were established. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. 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. concordant coastlines. Examples of discordant coastlines are Bantry Bay and Dingle Bay found in Ireland while an example of a concordant coastline is Lulworth Cove. The length of perimeter approx 2km. What are they? shale), eroding quicker than the hard, resistant rock (e.g. In contrast with emergent coastlines, submergent coastlines are coastlines submerged under water due to rising sea levels. The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. 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. Assessment week 2 (WB 24th February 2020) - End of unit test - Physical landscapes of the UK. in height. Paw Patrol Does Ryder Have A Crush On Katie, Lerne mit deinen Freunden und bleibe auf dem richtigen Kurs mit deinen persnlichen Lernstatistiken. What are the environmental impacts of economic development in Nigeria? 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, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Pinterest (Opens in new window), Click to email a link to a friend (Opens in new window), Click to share on WhatsApp (Opens in new window), Internet Geography Plus Terms and Conditions. - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. Pinterest. The processes have been operating over the last 8000 years. Upload unlimited documents and save them online. Which landforms result from moving or melting ice? 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. 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 emergent coastline that "emerges" from the water--either the land has risen, or the water level has fallen. It has a discordant coastline along the east and concordant coastline along the south. The Dalmatian type, named from Dalmatia on the Adriatic Sea, features long offshore islands and coastal inlets that are parallel to the coastline. Almera in Spain: a large-scale agricultural development, Sustainable Food Supplies in an LIC Bangladesh. GCSE 9-1 Coasts: Erosional Landforms Bundle. Opportunities and Challenges in the Sahara Desert, Opportunities and Challenges in the Thar Desert, Opportunities and Challenges in the Western Desert. Sandridge formed bars across some bays and river mouths, with trapped river water forming a lagoon behind (callled haffs in Poland on the Baltic Sea). The site is self-funded and your support is really appreciated. Pinterest. Destructive waves are usually . Fun Fact: Lulworth Cove is a World Heritage Site and attracts approximately 500,000 visitors a year. The geology of the Isle is complex. It has a discordant coastline along the east and concordant coastline along the south. chalk) May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. Barton-on-Sea, in particular, is a well-known place to study coast erosion and sea-defence work, some successful, some partly successful, and some failed. Concordant coastlines tend to have fewer bays and headlands. BBC Bitesize Geoguessr Google Maps Gapminder . That is, if both the row and column index move in the same direction - both increase or both decrease, then the pair is concordant. Lines of islands separated by narrow sea channels parallel to the coast (sounds). As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. 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 . What is the structure of the Temperate Deciduous Woodland? A concordant coastline is an arrangement of rock strata along the coastline. Reasons for Protecting Dawlish Warren: 1. . Discordant coastline . Shingle ridge reconnected island of Portland Bill to land (a tombolo). It is used in geography and meteorology and is usually associated with coastal erosion.It plays a large part in longshore drift as well. Headlands are formed when the sea attacks a section of coast with alternating horizontal bands of hard and soft rock. Concordant coastline. A concordant coastline is an arrangement of rock strata along the coastline. This differential erosion creates headlands and bays along discordant coastlines. 3. The hard rock that forms Lulworth Cove is called the Portland limestone and chalk whereas the soft rock is clay. As the wave approaches the coast, it gains height and drops onto a steep beach. Concordant coasts have alternating layers of hard and soft rock that run parallel to the coast. Coastlines are constantly changing, with sea levels rising or falling, and it is no different with submergent coastlines. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. True or False: As sea levels rise, coastlines are likely to expand. Find this Pin and more on KS4 Changing Landscapes of the UK by Mr Haden. Long offshore islands and coastal inlets are running parallel to the coastline. About 40% of the global population lives within 100km of a coastline. On discordant coastlines, differential erosion may occur, where bands of hard and soft rock outcrop at right angles to the sea. 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. You know your landforms of coastal erosion. Swam in the ocean? 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 . Explain the process of longshore drift (3) Coasts - Grade Booster. Watch popular content from the following creators: ambs(@aambersaunders), Revision(@lastminstudies), - (@alevelhelp.32), GCSE revision 2022(@revision.2022), BBC Bitesize(@bbcbitesize), Revision(@lastminstudies), Revision . A discordant coastline occurs where bands of different rock type run perpendicular to the coast. A famous example of a coastline. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. 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. Shaping our coasts. When the auto-complete results are available, use the up and down arrows to review and Enter to select. Wrong! Waves can be gentle and infrequent or more significant, more frequent, and more powerful. The image below (figure 2) is taken at Durlston Head, which shows the bay (yellow) and the headland (red). Created up folded ridges (anticlines) and down folded valleys (synclines) aligned parallel to the coast. Paired spits formed parallel to the coast with haff lagoon behind at the mouth of the River Vistula in Gdansk. Geology is the study of the types of rocks that make up the Earth's crust. ALEVEL GEOGRAPHY - COASTAL LANDSCAPES | EQ1 : the littoral zone ; offshore, nearshore and backshore. We use cookies to ensure that we give you the best experience on our website. Soluble materials dissolve in water and are carried along. The hard rock acts as a protective barrier to the softer rock behind it preventing erosion. 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. If you continue to use this site we will assume that you are happy with it. Concordant Coasts . A case study of a sparsely populated area Himalayan Mountains, A case study of a densely populated area Greater London. 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. Two Earthquakes Compared Nepal and LAquila, Lombok Indonesia Earthquake 2018 Case Study, 2018 Sulawesi Indonesia Earthquake and Tsunami Case Study. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. Bits of rock and sand that the waves have picked up are thrown against the cliff face. The Dorset Coast contains a range of landforms including Durdle Door, Lulworth Cove . discordant coastlines. As Thor says, not bad at all. More resistant Jurassic Portland Limestone forms the Peveril Point headland to the south, projecting out by 1 km. Even London is built along the River Thames, which flows into the North Sea. True or False: In 1982, the United Nations Convention on the Law of the Sea created international maritime boundaries based on relative naval power. Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. 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.

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