pptx, 1.58 MB. How have plants adapted to cold environments? 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 . Lines of islands separated by narrow sea channels parallel to the coast (sounds). Discordant coasts have a crenellated pattern of projecting headlands and indented bays. Let's take a look at some of the different types of coastlines and their role in our geopolitics and global climate. 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. BBC Bitesize. Concordant coastlines tend to have fewer bays and headlands. The longer the fetch length and the faster the wind speed, the . Create the most beautiful study materials using our templates. 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. They have a low gradient, typically under one meter in height. There are rias throughout the world, including Poole Harbour in Dorset. What are the effects of deforestation in the Amazon? Soluble materials dissolve in water and are carried along. 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. It varies enormously from tropical looking Luskentyre in the Outer Hebrides, to the jagged coasts of Cornwall, from the low lying muddy estuarine coast of the Wash, to broad sandy beach and dunes at Bamburgh in Northumberland. concordant coastlines. How have animals adapted to the rainforest environment? Concordant coasts form where geological structure is such that different rock strata or folds are aligned parallel to the coastline. 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 . What are the economic and environmental issues of energy production? Stop procrastinating with our smart planner features. During a storm, the most common waves are destructive. 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. These are where rock strata or structures are aligned at an angle to the coastline. On a discordant coastline, alternating layers of hard and soft rock are perpendicular to the coast. Concordant and discordant coastlines. The process begins with seawater hitting on the coastline. The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. Set individual study goals and earn points reaching them. A concordant coastline diminated by limestone in the map has the same type of rock along its length. Anak Krakatau & Sunda Strait Tsunami Indonesia Case Study 2018. Strata are different layers (or beds) of rock. What is the impact of humans on the desert? Now you can find what you're looking for wherever it lives. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. If they move in opposite directions - one increases while the other decreases - then the pair is discordant. We support the next generation of geographers and geoscientists, with inspiring educational videos for secondary school students and teachers. A concordant coastline is an arrangement of rock strata along the coastline. Why are deserts located along the tropics? We use cookies to ensure that we give you the best experience on our website. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). Wave Refraction and Coastal Defences. Coastlines are constantly changing, with sea levels rising or falling, and it is no different with submergent coastlines. Originally a band of resistant Portland . Fetch length along with the wind speed (or strength) determines the size of waves produced. The rock strata are almost vertical, and the bands of rock are quite narrow. Bands of soft rock such as clay and sand are weaker therefore they can be eroded quickly. Did you know? Fetch length along with the wind speed (or strength) determines the size of waves produced. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . If the direction of the classification is not the same . Add in the missing words. They are most common where fetchis short. Figure 3: Location of Lulworth Cove, Dorset, UK, map data: 2022 Google. Type # 1. guildford school of acting auditions; gilroy google font alternative; cuisinart steamer insert; Blog Post Title February 26, 2018. material at the coast and in a river. Correct! Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. This is called a discordant coastline. Soluble materials dissolve in water and are carried along. The length of perimeter approx 2km. Over time, waves beating against the shore will wear it down (or erode it). The three marine processes that shape the coastline are erosion, transportation, and deposition. A discordant coastline occurs where bands of different rock type run perpendicular to the coast. Resistant Cretaceous Chalk forms the Foreland headland, projecting 2.5 km to the north. 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 has the same type. The differing resistance to erosion leads to the formation of headlands and bays. Why is the weather of the UK so changeable? Erosion. Waves are produced by friction between the wind and water, resulting in an energy transfer from the wind to the sea. Where are Temperate Deciduous Woodlands Located? Distribution of earthquakes and volcanoes, Effects of earthquakes and volcanoes on people and the environment, Reducing the impacts of earthquakes and volcanoes, Population and settlement iGCSE Geography, The main causes of a change in population size, A country with a rate of high population growth China, A country which is over-populated Bangladesh, A country which is under-populated Australia, A country with a low rate of population growth or decline Japan. These processes are happening constantly and usually work in conjunction to produce coastal features. - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less 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. How has rainforest vegetation adapted to the climate? The image below shows how the refracted wave becomes increasingly parallel to the shoreline. But do they serve as anything more than a place to go for a hike or a tan? During this time, glaciers and ice sheets were retreating, causing a rise in global sea levels and localised changes in land height. $14 million dollar house maine; Discordant and concordant coasts in Dorset. ALEVEL GEOGRAPHY - COASTAL LANDSCAPES | EQ1 : the littoral zone ; offshore, nearshore and backshore. Touch device users . concordant and discordant coastlines bbc bitesize - hillsboro, ohio newspaper classifieds - hillsboro, ohio newspaper classifieds - A unique coastline within the UK is Lulworth Cove in Dorset. . Coasts Revision Booklet. Portland limestone erodes very slowly, retreating landwards by marine undercutting and collapse to form a straight W-E coastline. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. The geology of the Isle is complex. Reasons for Protecting Dawlish Warren: 1. Concordant coastlines tend to have fewer bays and headlands. Many of these types of coastlines were actually formed toward the end of the Last Glacial Period (LGP). Each process can produce several coastal features; however, they often work together to sculpt the coastlines. The Earth has approximately 620,000 kilometres (390,000mi) of coastlines and they are not just a barrier between land and water; they are also important natural ecosystems. Concordant Coasts . Case studies Dorset Jurassic coast and Holderness. May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. Importance of the Delta for the region. What challenges have been caused by urban growth in Mumbai? The more the waves crash onto the beach, the more sediment is washed out to sea. Erosional landforms - Coastal landforms - AQA - GCSE Geography Revision - AQA - BBC Bitesize. 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. The swash of a destructive wave is much weaker than its backwash. Castleton A tourist honey pot in The Peak District, Case Study Inner City Redevelopment Londons Docklands. Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. Discordant These are where rock strata or structures are aligned at an angle to the coastline. This lesson was designed initially for an interview, and worked really well for a 50 minute lesson duration. Wrong! Where are the areas of water deficit and surplus in the UK? - Headlands form along discordant coastlines in which bands of soft and hard rock outcrop at right angles to the coastline. What is the impact of humans on the temperate deciduous woodland? What is the Demographic Transition Model? concordant and discordant coastlines bbc bitesize. All maps, graphics, flags, photos and original descriptions 2023 worldatlas.com, Coastal Countries With The Shortest Coastline, Meet 12 Incredible Conservation Heroes Saving Our Wildlife From Extinction, India's Leopard God, Waghoba, Aids Wildlife Conservation In The Country, India's Bishnoi Community Has Fearlessly Protected Nature For Over 500 Years, Wildfires And Habitat Loss Are Killing Jaguars In The Amazon Rainforest, In India's Sundarbans: Where People Live Face-To-Face With Wild Tigers, Africa's "Thunderbird" Is At Risk Of Extinction. These bands of rocks alternate between soft rock and hard rock, all eroding at different rates and in varying ways. What are Mumbais social and economic opportunities? What is the site and situation of a settlement? This belongs to: _____. When a stretch of coastline is formed from different types of rock, headlands and bays can form. Bands of soft rock such as clay and sand are weaker therefore can be eroded quickly. Straight coastline now formed by a concordant band of constant chalk. How does geology affect the formation of river landforms? It is only when the water enters shallower areas that the water itself moves forward. Lulworth Cove is a World Heritage site and part of the Heritage Coastline. The concordant coastline runs from west to east along the south coast. The cove is located in a South West England County known as Dorset that is found along the English Channel. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . As a result, it does not travel far up it. The updated BBC Bitesize website has a great video on . A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. Concordant coastline. Coastal Erosion. Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines. (8) Coasts - Grade Booster Geog' Clips Extreme weather in the UK Beast from the East, Extreme Weather in the UK Summer Heatwave 2018. Lulworth cove where an oval shaped bay has been formed by more rapid erosion of the less resistant clay that lie behind the . Try Dokkio Sidebar for free. A concordant coastline produced by the geological structure of folds parallel to the coast. Erosion worsens as the waves becomes stronger. Because the soft rock is exposed, it is eroded faster than the hard rock. concordant coastlines. What is the structure of the tropical rainforest? What is the structure of the Temperate Deciduous Woodland? Image. 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. Discordant coasts have a crenellated pattern of projecting headlands and indented bays. The sea attacks a weakness in the base of the cliff. Rocks outcrop at right angles to the sea, forming headlands and bays. a headland separated by two bays. Long spits of sands run parallel to the low coast, enclosing the coast. 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. A famous example of a 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 . An example of a popular cove situated in a concordant coastline is the Lulworth Cove. Identify your study strength and weaknesses. One of the topics looked at in GCSE Geography is the features that are found on a coastline. (bands) of hard rock and soft rock; many bays and headlands. 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. Geology [ edit] 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. Sea forces change coastal landscapes with the wind being the major source of waves. (For example the east of the Dorset coast) How Geology affects the coast . The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. Headlands and Bays 2. The Portland limestone is resistant to erosion; then to the north there is Swanage Bay where the rock type is a softer greensand. The outer hard provides a protective barrier to erosion of the softer rocks further inland. Tip: To turn text into a link, highlight the text, then click on a page or file from the list above. Quick revise. The differing resistance to erosion leads to the formation of headlands and bays. The hard rock shields the soft rock from erosion. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. It is one of the best examples in Europe of the stages of erosion on a concordant coastline. 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. How has the vegetation in the temperate deciduous forest adapted to the climate? https://commons.wikimedia.org/wiki/File:Lulworth.png. 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. 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. However, when the hard rocks punctured by either faults or ridges, inland soft rocks yield to erosion. Consequently headlands and bays form along discordant coastlines and whilst headlands remain exposed to the force of the waves, bays are sheltered. You don't have permission to comment on this page. Earn points, unlock badges and level up while studying. Bull's Head in St Oswald's Bay. Find out more about concordant coastlines. More recently the village was affected by the tragic floods of 1953 that claimed the lives of 76 Norfolk . Aqa. When the auto-complete results are available, use the up and down arrows to review and Enter to select. These will be exam question style ranging from 4, 6 and 9 mark . Where are polar and tundra environments located? Bay and headland - Durdle Door, Dorset. Emergent coastlines can have features such as marine terraces, relict sea cliffs, sea stacks, and raised beaches. A concordant coastline comprises bands of different rock types that run parallel to the shore. Lerne mit deinen Freunden und bleibe auf dem richtigen Kurs mit deinen persnlichen Lernstatistiken. The gradual breakdown of rocks due to . There are four major types of coastlines: emergent, submergent, discordant, and concordant. Both concordant and discordant. Erosion Sea forces change coastal landscapes with the wind being the major source of waves. As our Earth warms, glaciers melt, causing the sea level to rise. The fetch, often called the fetch length, is the length of water over which a given wind has blown. What problems are caused by global warming? Little Hilbre Island (Cheshire) by Google Earth / ESRI, Imagery 2016 Getmapping plc, Map data 2016 Google. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. coastlines. Fjords are created when glaciers cut through valleys and are submerged. 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. 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. Coasts can be classified in a variety of . Concordant and discordant coasts . These waves are also known as plunging waves. A case study of a sparsely populated area Himalayan Mountains, A case study of a densely populated area Greater London. Where the land rises to the sea there are several parallel strata of Jurassic rocks, including Portland limestone and the . 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. Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. Insert links to other pages or uploaded files. The Adriatic Sea itself is a concordant landform, consisting of a body of water between parallel ranges. What are the physical characteristics of cold environments? Best study tips and tricks for your exams. By contrast, when the rock strata are perpendicular to the coastline, the coast is referred to as discordant. (For example the east of the Dorset coast) How Geology affects the coast . The site is self-funded and your support is really appreciated. These will be exam question style ranging from 4, 6 and 9 mark questions. These will be exam question style ranging from 4, 6 and 9 mark questions. A wave-cut platform is a wide, gently sloping surface found at the cliff's base and extends into the sea. Coastal. An explanation of the formation of the cove can be found on the right. False! Many emergent coastlines have existed since the glacial phases of the Pleistocene Epoch, which lasted from about 2,580,000 and 11,700 years ago because the sea levels were much lower than they are today. As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. Key Question: What are the different landforms of the Jurassic Coast? As a result of the coastal feature, the depth of water around a coast varies. This continual process can weaken the joints and cracks in the cliff, causing pieces of rock to break off. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. Waves are created as wind blows over the water causing friction; this causes the water to start to move in a circular orbit. You need to do some work on landforms of coastal erosion. The rise in sea level can be the result of an increase in water volume or the sinking of the land's surface. The discordant coastline runs from Protection of cold environments as wilderness areas. Coasts can be classified in a variety of . Touch device users . 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. Weathering and mass movement in river valleys. 2. During the Devensian glacial the sea level was about 100 m lower than today as water was retained in huge ice sheets. As these systems develop at sea, communities along coastlines are the most vulnerable to any potential destruction. 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. 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. How does flooding affect humans and the environment? 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. The shape of the cove is the result of wave diffraction. 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. This process happens over thousands of years. Links to wider reading and an introductory video. Take a look at our resources under Topics in the menu at the top of the page. The Earth has around 620,000 kilometres (390,000 mi) of coastline. Concordant. What challenges are associated with the growth of Rio? (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. Opportunities and Challenges in the Sahara Desert, Opportunities and Challenges in the Thar Desert, Opportunities and Challenges in the Western Desert. In contrast with emergent coastlines, submergent coastlines are coastlines submerged under water due to rising sea levels. 1. It is a valuable habitat for birds and plants eg a wide array of wading birds like the avocet. This quiz focusses in particular on those features which are caused by coastal erosion. Waves drag in the shallow water approaching a headland so the wave becomes high, steep and short. The coastline between Durlston Head and Studland Bay in Dorset, UK, is a great example of a discordant coastline. 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. Key Question: What are the different landforms of the Jurassic Coast? discordant coastline diagram. The amount of energy is dependent on the wind speed, the length of time the . It's a way of having all my information in one place. Either way, there is now a (bit of) coastline that is no longer submerged under water. Some concordant coasts have long, narrow islands running parallel to the coastline. Large particles like boulders are pushed along the bottom of the river bed/sea by the force of the water. This cove is located near the village of West Lulworth and is one of the best examples of a concordant coastline. Sustainable development in the desert The Great Green Wall. Which of the following are major types of coastlines? The three major coastal processes include erosion, transportation and deposition. The image below shows a wave-cut platform formed at Flamborough, Holderness Coast. It has a variety of other micro-features and a unique geology.
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