B Gradually the . More resistant strata erode only slowly, and are left projecting into the sea as headlands. Discordant coasts have a crenellated pattern of projecting headlands and indented bays. 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 . Fjords are created when glaciers cut through valleys and are submerged. The differing resistance to erosion leads to the formation of headlands and bays. They have a. gradient, typically under . The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. A famous example of a coastline. Landscapes. For example, both X and Y rate item 1 higher than item 2. Stacks, headlands, bays, cliffs and wave-cut platforms are all included. A submergent coastline is a coastline that has submerged below the water. Touch device users . This cove is located near the village of West Lulworth and is one of the best examples of a concordant coastline. The water, with an endless supply of waves, whether pounding or gentle ripples, is constantly changing coastlines around the globe. An explanation of the formation of the cove can be found on the right. Case studies Dorset Jurassic coast and Holderness. Geology is the study of the types of rocks that make up the Earth's crust. There are four major different types of coastlines: Below, we will go into more detail on all of these different types of coastlines. The differing resistance to erosion leads to the formation of headlands and bays. 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 . Waves drag in the shallow water approaching a headland so the wave becomes high, steep and short. Both concordant and discordant. She is cooler than I am and has a life instead of enough time to make this. Hilbre Island (Cheshire) is an example of a possible fieldwork location. Concordant coastline Uncordant coastline Variable coastline 8. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. $14 million dollar house maine; After the waves broke through, creating an opening, the softer clay after the limestone started to erode away as well, creating a cove (figure 4). If you've been to the beach, you've probably seen some of them: mangrove trees and hermit crabs, penguins and sea oats- organisms that can neither fully survive way out at sea, nor venture too far inland. Within geography, the definition of a coastline is the area where land meets water. 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. Aqa. Soluble materials dissolve in water and are carried along. A coastline with the same type of rock along its length; fewer bays and headlands. 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. 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 LGP encompasses the period of c. 115,000 to c. 11,700 years ago. Even London is built along the River Thames, which flows into the North Sea. Caves, Arches, Stacks and Sumps 3. 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. Concordant and discordant coastlines. Long offshore islands and coastal inlets are running parallel to the coastline. 1. 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. Coastal Geology. What are the impacts of industry on the physical environment? The Jurassic Coast begins at Orcombe . What is Nigerias location and importance? Shake Hands With Beef Girl, Case studies Dorset Jurassic coast and Holderness. [5] The arch has formed on a concordant coastline where bands of rock run parallel to the shoreline. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Published by at February 16, 2022. Identify your study strength and weaknesses. How is demand for energy changing in the UK? The coastline determines everything. Erosion worsens as the waves becomes stronger. Pinterest. 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. Additionally, hotter temperatures enable extreme weather events like hurricanes to occur more frequently. A bedding plane is the interface between two sedimentary strata. 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! Today. A chalk cliff face is at the back of the cove. A case study of the coastal recession at the Nile Delta for Edexcel A Level Geography. The process of erosion can create different landforms along the coastline. This results in the formation of headlands and bays. The results are deep, lengthy, thin inlets surrounded by high cliff faces. 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. In 1982, the United Nations held a Convention on the Law of the Sea (UNCLAS), where maritime (sea) boundaries were established. The cove is located in a South West England County known as Dorset that is found along the English Channel. They are most common where .. is short. Both concordant and discordant. If the direction of classifications is the same, the pairs are concordant. . What factors influence the effects and response to tectonic activity? Caves occur when waves force their way into cracks in the cliff face. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. Type # 1. In contrast with emergent coastlines, submergent coastlines are coastlines submerged under water due to rising sea levels. Straight coastline now formed by a concordant band of constant chalk. Which of the following is NOT a major process through which waves shape the coast? During the Devensian glacial the sea level was about 100 m lower than today as water was retained in huge ice sheets. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. Each process can produce several coastal features; however, they often work together to sculpt the coastlines. Over time the sea can wash away an entire coastline, forcing back human uses of that land (such as settlements or farms) and letting the sea . 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. How is urban planning improving the quality of life for the urban poor in Mumbai? How has demand for water in the UK changed? Concordant Coasts . 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 ). How do changes affect the balance of an ecosystem? Terms of use / Privacy policy / GDPR, About this workspace ALEVEL GEOGRAPHY - COASTAL LANDSCAPES | EQ1 : the littoral zone ; offshore, nearshore and backshore. South Dorset Coast 1. The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. Where the rock outcrops run parallel to the sea. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . What is the highest point of a wave called? lulworth cove concordant coastline. - Headlands form along discordant coastlines in which bands of soft and hard rock outcrop at right angles to the coastline. Figure 5: Lulworth Cove in Dorset, UK, map data: 2022 Google. An explanation of the formation of the cove can be found on the right. How can the impacts of climate change be managed? International migration from Syria to Europe, Japan A country with a high dependent population. formed by the erosion of less resistant Wealden Clays. Use the resources provided to write notes that Wave Refraction and Coastal Defences. The coastal engineering for the shoreline protection involves: . This differential erosion creates headlands and bays along discordant coastlines. Find out more about concordant coastlines. 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 . Erosion Sea forces change coastal landscapes with the wind being the major source of waves. The image below shows a wave-cut platform formed at Flamborough, Holderness Coast. They have a mainly circular orbit, a steep gradient. There are rias throughout the world, including Poole Harbour in Dorset. Concordant. (bands) of hard rock and soft rock; many bays and headlands. Sustainable development in the desert The Great Green Wall. The discordant coastline runs from What is the impact of humans on the Taiga? The differing resistance to erosion leads to the formation of headlands and bays. Which landforms result from moving or melting ice? These bands of rocks alternate between soft rock and hard rock, all eroding at different rates and in varying ways. It's a way of having all my information in one place. Human actions and Physical factors affecting the Delta. The UK's coastline is 31,368 km long (if you include all the main islands). The gradual breakdown of rocks due to . This creates a cove which is a circular area of water with a relatively narrow entrance way from the sea. Today. Limestone Case Study Malham, The Yorkshire Dales. The fetch, often called the fetch length, is the length of water over which a given wind has blown. 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. Ria coastlines are a type of submergent coastline, but Dalmation landforms are associated with concordant coastlines. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . Caves occur when waves force their way into cracks in the cliff face. Touch device users . 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. Spits were formed in river mouths where the river was powerful enough to break through the sand ridge to the sea. One of the topics looked at in GCSE Geography is the features that are found on a coastline. Reasons for Protecting Dawlish Warren: 1. - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. Why Is Biodiversity Critical To Life On Earth? How has the growth of Lagos caused inequality? 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. Why is the Human Development Index important? A concordant coastline has the same type of rock along its. Economic losses to businesses if areas become unattractive and depopulated. Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. In some cases it is estimated that there was a rise . What is chemical and mechanical weathering? 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. As a wave undercuts a cliff the cliff retreats. Discordant coasts forms where geological structure is such that different rock strata of folds are aligned at an angle to the coastline. Summer 2 Emerging economies: Asia Studying the emergence of economies in Asia known A concordant coastline is an arrangement of rock strata along the coastline. A concordant coastline with resistant Portland Limestone forming a protective stratum parallel to the sea. When a stretch of coastline is formed from different types of rock, headlands and bays can form. It has a variety of other micro-features and a unique geology. concordant coastlines. Protection of cold environments as wilderness areas. One of the topics looked at in GCSE Geography is the features that are found on a coastline. Over time, waves beating against the shore will wear it down (or erode it). A discordant coastline occurs where bands of different rock type run perpendicular to the coast. Key Question: What are the different landforms of the Jurassic Coast? In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. Concordant coastlines tend to have fewer bays and headlands. A concordant coastline is an arrangement of rock strata along the coastline. It can be reached at low tide by walking from the mainland. The Dorset Coast, located to the south of England on the English Channel, runs from Lymme Regis in the west, past Old Harry Rocks in Purbeck to Highcliffe in the east. PBworks / Help B Gradually the . The differing resistance to erosion leads to the formation of headlands and bays. What does scenery formed by erosion look like? 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. 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. Okay, now we know what coastlines are. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. What is the distance between trough and crest called? The rock strata are almost vertical, and the bands of rock are quite narrow. Examples of discordant coastlines are Bantry Bay and Dingle Bay found in Ireland while an example of a concordant coastline is Lulworth Cove. Along the coastline of Dorset, there are concordant and discordant coastlines. How reliable are economic indicators of development? If the direction of the classification is not the same . In Cork in the south west of the Republic of Ireland, Formed from less resistant Carboniferous Limestone. Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant. Waves can be gentle and infrequent or more significant, more frequent, and more powerful. Lerne mit deinen Freunden und bleibe auf dem richtigen Kurs mit deinen persnlichen Lernstatistiken. What are the differences in global calorie intake and food supply? This is important in delineating who has legal, economic, and military jurisdiction in areas along the coast. Bonding between rocks either side of the plane is weaker than bonding within strata. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. How does food insecurity affect the environment? Gcse Geography Revision Aqa Coastal Landscapes Teacher Image Paisajes Key Question: What are the different landforms of the Jurassic Coast? 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 . Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines. UNCLAS implemented a universal system for maritime boundaries based on baselines, which are measured from the low-water line at the coast. These are coastlines where the bands of rock run perpendicular to the coastline meaning . The three major coastal processes include erosion, transportation and deposition. (BBC, 2006). Which of the following are associated with discordant coastlines? Little Hilbre Island (Cheshire) by Google Earth / ESRI, Imagery 2016 Getmapping plc, Map data 2016 Google. 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. Wrong! Chesil Beach in Dorset was formed this way. Discordant coastlines - where the rock layers alternate between harder and softer rock, which bays and headlands are more likely . Did you know? Rock strata that are less resistant (due to the rock unit's lithology and structure) erode rapidly to form indented bays. As we mentioned earlier, this tends to shift the coastline further inland. The rock types are typically of . The Earth has around 620,000 kilometres (390,000 mi) of coastline. 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. These coves are formed by waves breaking through an outer layer of hard rock, such as limestone, and then, over time, the waves sweep away the soft rock further inland, like sand and clay, creating a cove. Where are polar and tundra environments located? A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. What problems are caused by global warming? The Dorset Coast contains a range of landforms including Durdle Door, Lulworth Cove . Because the waves are so frequent, the backwash has less time to soak into the sand. coastlines. Three complete lessons and a worksheet pack that cover the main erosional coastal landforms. Specification and other support materials for teachers, including delivery guides Explore. Explain the process of longshore drift (3) Coasts - Grade Booster. Waves are produced by friction between the wind and water, resulting in an energy transfer from the wind to the sea. . Concordant coastlines tend to have fewer bays and headlands. Either way, there is now a (bit of) coastline that is no longer submerged under water. Wave Refraction and Coastal Defences. What are the physical characteristics of cold environments? Label two landforms shown in the photograph (2) Coasts - Grade Booster. This. pptx, 1.58 MB. Erosion. Be perfectly prepared on time with an individual plan. Use the resources provided to write notes that The longer the fetch length and the faster the wind speed, the . Discordant. 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. GCSE Geography Coastal landscapes in the UK learning resources for adults, children, parents and teachers. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). 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. What is the site and situation of a settlement? Stop procrastinating with our smart planner features. 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. When the following wave breaks, its swash will deposit more material without it being 'captured' by the backwash of the preceding wave. Correct! The length of perimeter approx 2km. 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 . As erosion processes take place, the clay erodes away quicker than the. Headlands are formed when the sea attacks a section of coast with alternating horizontal bands of hard and soft rock. how to change text duration on reels. 2: Durlston headland and bay (https://en.wikipedia.org/wiki/File:Durlston_bay_from_durlston_castle.jpg) by Jim Champion (https://commons.wikimedia.org/wiki/User:JimChampion) licensed by CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/deed.en), Fig. The three major coastal processes include erosion, transportation and deposition. They have a mainly circular orbit, a .. gradient. These are where rock strata or structures are aligned at an angle to the coastline. 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). Both concordant and discordant. Large colonies of sea lions and seals sleep and breed along coastlines, entering the seas to hunt. A concordant coastline is an arrangement of rock strata along the coastline. PSYCHIC TWINS . While not every UN member has ratified UNCLAS, most nations abide by it anyway. Lulworth cove is a perfect horseshoe bay found on the south coast of England in the county of Dorset, on the Jurassic coastline. What percent of the global population lives within 100km of a coastline? If you continue to use this site we will assume that you are happy with it. 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. For example, this could be a joint in chalk. Let's take a look at some of the different types of coastlines and their role in our geopolitics and global climate. Emergent coastlines can pop up after tectonic activity, where the land is being pushed up by the tectonic plates. Coasts can be classified in a variety of . As our Earth warms, glaciers melt, causing the sea level to rise. Discordant coasts have a crenellated pattern of projecting headlands and indented bays. A joint is a fracture of rock without movement from the original position, e.g. Rocks outcrop at right angles to the sea, forming headlands and bays. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. In the Holocene Interglacial constructive waves pushed the ride of sands and gravel landwards as sea levels rose. Taking the low-water line along the coast (or, the baseline), UNCLAS put forth the following: Special exceptions apply to areas like straits, where ships can't help but pass through territorial waters. Geological structure is the characteristics and arrangement of rock units. North of Swanage, the chalk outcrop creates the headland which includes Old Harry Rocks. What is the role of transnational companies in Nigeria? Select all that apply. Besides hosting a multitude of specialised plants and animals, coastlines are also critical to our economic and political infrastructures, providing people with sources of food and livelihoods and allowing us to determine where our borders actually end. Landforms in the middle course of a river. 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. Coastal Erosion. Discordant coastlines occur when bands of different types of rocks run perpendicular (at 90 degrees) to the coast. The coastline between Durlston Head and Studland Bay in Dorset, UK, is a great example of a discordant coastline. Practice Questions: Slideshow 2773107 by chanel coastlines. (8) Coasts - Grade Booster Geog' Clips the same rock types are parallel to the coastline, with alternating bands of different rock types running parallel to the coastline behind it (as opposed to a 'discordant coastline' where the rock types are perpendicular to the coastline, presenting differing rock types to the sea along the coastline). The processes have been operating over the last 8000 years. Less resistant rocks are eroded more than the resistant . What is a discordant coastline? Tectonic forces produced by the collision of African and Eurasian plates compressed Carboniferous Limestone during the Alpine Orogeny 50 million years ago. Weathering and mass movement in river valleys. Teacher. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. Their wavelength is long and a low frequency (8-10 waves per minute). As it does so continually, the hard rocks resist erosion resulting in the protection of the soft rocks. Over 10 million students from across the world are already learning smarter. The hard rock that forms Lulworth Cove is called the Portland limestone and chalk whereas the soft rock is clay.
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