One of the topics looked at in GCSE Geography is the features that are found on a coastline. Historic records indicate that over 250 m of land were lost between 1600 and 1850. Where the rock outcrops run parallel to the sea. This quiz focusses in particular on those features which are caused by coastal erosion. Along the coastline of Dorset, there are concordant and discordant coastlines. Lulworth Cove is a World Heritage site and part of the Heritage Coastline. Where the rock outcrops run parallel to the sea. Discordant coastline . Which of the following are major types of coastlines? 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. North of Swanage, the chalk outcrop creates the headland which includes Old Harry Rocks. 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. Rocks outcrop at right angles to the sea, forming headlands and bays. Teacher. Gone surfing? Selenium Deficiency In Baby Goats, The arch has formed on a concordant coastline where bands of rock run parallel to the shoreline. Portland limestone erodes very slowly, retreating landwards by marine undercutting and collapse to form a straight W-E coastline. Describe the characteristics of destructive waves (3) Coasts - Grade Booster. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Concordant Coasts . Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). Originally a band of resistant Portland . In 1982, the United Nations held a Convention on the Law of the Sea (UNCLAS), where maritime (sea) boundaries were established. Links to wider reading and an introductory video. If you've been to the beach, you've been to a coastline! Water quality and pollution management in the UK. Learn vocabulary, terms, and more with flashcards, games, and other study tools. What are the environmental impacts of economic development in Nigeria? Lulworth Cove has occurred on a concordant coastline. shale), eroding quicker than the hard, resistant rock (e.g. How far out to territorial waters extend from the coast (or baseline)? The site is self-funded and your support is really appreciated. geography revision coastal landforms 264.4K views Discover short videos related to geography revision coastal landforms on TikTok. 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. This happened over about 1000 years, (very rapid) and submerged coastlines. The cove is located in a South West England County known as Dorset that is found along the English Channel. Bonding between rocks either side of the plane is weaker than bonding within strata. Waves move up and down there is no horizontal movement. The soft rock is made of clay and sands, and the hard rock is chalk and limestone. The differing resistance to erosion leads to the formation of headlands and bays. The Portland limestone is resistant to erosion; then to the north there is Swanage Bay where the rock type is a softer greensand. Hilbre Island (Cheshire) is an example of a possible fieldwork location. Quick revise. What factors influence the effects and response to tectonic activity? 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. discordant coastline diagram. Consequently, the water from the sea sweeps away the soft rocks leaving behind a circular land formation known as a cove. Bay and headland - Durdle Door, Dorset. What are the effects of economic development in Nigeria on quality of life? Emergent coastlines can have features such as marine terraces, relict sea cliffs, sea stacks, and raised beaches. 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. Specifically looking at the differences between concordant and discordant coastlines. What is the impact of humans on the desert? Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. When a stretch of coastline is formed from different types of rock, headlands and bays can form. The low-energy wave spills into the bays as . Their wavelength is long and a low frequency (8-10 waves per minute). A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. Subsequently there was an increase in the waters of the oceans and the sea level rose appreciably. Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. 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. 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. Concordant coastlines are characterised by bands of similar types of rocks running parallel to the coast. But, let's be honest, it's not brilliant. 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. As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. They are most common where fetchis short. The rock strata are almost vertical, and the bands of rock are quite narrow. Less resistant Purbeck limestone and Wealden Clay lie behind the Portland, with resistant chalk further north. Gradually the material is moved along the coastline, its . Concordant coastlines tend to have fewer bays and headlands. A chalk cliff face is at the back of the cove. BBC Bitesize. 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. Large particles like boulders are pushed along the bottom of the river bed/sea by the force of the water. Which landforms result from moving or melting ice? A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. 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 ). 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. Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. What challenges are associated with the growth of Rio? It has a variety of other micro-features and a unique geology. A ria coast hosts multiple rias. Bands of soft rock such as clay and sand are weaker therefore they can be eroded quickly. What are the different types of weathering? This means that these waves transport beach material back into the sea, lowering the height of a beach. The outer layers of the coastline, those directly on the waterline, are Portland and Purbeck limestone, and they have been eroded away over many years. 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. Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant. lulworth cove concordant coastline. As erosion processes take place, the clay erodes away quicker than the. Concordant coasts form where geological structure is such that different rock strata or folds are aligned parallel to the coastline. Waves are produced by friction between the wind and water, resulting in an energy transfer from the wind to the sea. Definitions. The three major coastal processes include erosion, transportation and deposition. The Adriatic Sea itself is a concordant landform, consisting of a body of water between parallel ranges. Coastlines will expand as climate change continues. . Emergent Coastlines. Sea turtles return to coasts to lay their eggs, and birds like gulls and pelicans do much of their hunting near the shore. The angle these bands make with the coastline makes it either a concordant or discordant coastline. Headlands and bays can form on concordant coastlines too, as has happened . Create beautiful notes faster than ever before. Sediment Cells. The more the waves crash onto the beach, the more sediment is washed out to sea. Best study tips and tricks for your exams. 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. These waves are also known as plunging waves. Less resistant rocks are eroded more than the resistant . What feature is left behind as the cliff retreats? Create your own unique website with customizable templates. This is because access to the coast offers the opportunity for harvesting marine resources, especially fish, as well as the ability to conduct international trade via the sea. Lulworth . Not surprisingly, destructive waves destroy beaches. Students will learn about different types of rock and will consider how resistance can affect rates of erosion. These coastlines may lead to the formation of either Dalmatia landforms or Haffs (also called lagoons). Bands of soft rock such as clay and sand are weaker therefore can be eroded quickly. A discordant coastline occurs where bands of different rock type run perpendicular to the coast. On discordant coastlines, differential erosion may occur, where bands of hard and soft rock outcrop at right angles to the sea. They have a mainly circular orbit, a .. gradient. In the Holocene Interglacial constructive waves pushed the ride of sands and gravel landwards as sea levels rose. Bits of rock and sand that the waves have picked up are thrown against the cliff face. A famous example of a coastline. Select all that apply. Practice Questions: Slideshow 2773107 by chanel Adapted from BBC. Now you can find what you're looking for wherever it lives. The results are deep, lengthy, thin inlets surrounded by high cliff faces. How has hot desert vegetation adapted to the climate? Fig. Limestone Case Study Malham, The Yorkshire Dales. Caves, Arches, Stacks and Sumps 3. This cove is located near the village of West Lulworth and is one of the best examples of a concordant coastline. As a result, it does not travel far up it. Contact the owner / RSS feed / This workspace is public, Rivers, Floods and Management (Physical Core), Drive, Dropbox, OneDrive, Gmail, and Slack. Concordant coastlines tend to have fewer bays and headlands. The differing resistance to erosion leads to the formation of headlands and bays. What does scenery formed by erosion look like? Why Is Biodiversity Critical To Life On Earth? Secondly, erosion of concordant coastlines results in the formation of coves while the erosion of discordant coastlines results in headlands and bays. Nie wieder prokastinieren mit unseren Lernerinnerungen. Many of these types of coastlines were actually formed toward the end of the Last Glacial Period (LGP). 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. Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. How have plants adapted to cold environments? Concordant and discordant coastlines. Shake Hands With Beef Girl, What is the highest point of a wave called? Concordant coastline 2. 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. Emergent Coastlines. Practice Questions: Slideshow 2773107 by chanel Coasts Revision Booklet. Specifically looking at the differences between concordant and discordant coastlines. starter: Students examine the picture and discuss what is happening to the houses and why. The concordant coastline runs from west to east along the south coast. Chesil Beach in Dorset was formed this way. South Dorset Coast 1. A joint is a fracture of rock without movement from the original position, e.g. When the auto-complete results are available, use the up and down arrows to review and Enter to select. The net result is that the sediment gets smaller and smaller over time. The rock types are typically of . (8) Coasts - Grade Booster Geog' Clips Coastlines of Submergence: i. Ria Coast: During the Ice Age a great deal of water was locked up in ice. 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. A concordant coastline has the same type of rock along its. Coastal Geology. This creates a cove which is a circular area of water with a relatively narrow entrance way from the sea. Approximately 40% of all people live within 100km of a coastline. Caves occur when waves force their way into cracks in the cliff face. If the direction of the classification is not the same . Either way, there is now a (bit of) coastline that is no longer submerged under water. A concordant coastline is where the same rock runs along the length of the coast. 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. of the users don't pass the Coastlines quiz! They are more common in . What is the difference between a tornado and a hurricane? As a result of the coastal feature, the depth of water around a coast varies. This area of the Jurassic coastline provides a habitat for a diverse range of natural life, particularly butterflies. - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. This happened over about 1000 years, (very rapid) and submerged coastlines. Meanwhile on concordant coastlines, where layers of rock run parallel to the coastline, cliffs are much more dominant. Links to wider reading and an introductory video. What are the air masses that affect the UK? Emergent coastlines happen when either the water level has fallen or the land has risen. 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. It has a variety of other micro-features and a unique geology. One of the topics looked at in GCSE Geography is the features that are found on a coastline. However, when the hard rocks punctured by either faults or ridges, inland soft rocks yield to erosion. Fetch length along with the wind speed (or strength) determines the size of waves produced. More resistant Jurassic Portland Limestone forms the Peveril Point headland to the south, projecting out by 1 km. The following are facts about destructive waves. How can the impacts of climate change be managed? The hard rock that forms Lulworth Cove is called the Portland limestone and chalk whereas the soft rock is clay. A discordant coastline occurs where bands of different rock type run perpendicular to the coast. Tip: To turn text into a link, highlight the text, then click on a page or file from the list above. How has the growth of Lagos caused inequality? Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. She is cooler than I am and has a life instead of enough time to make this. (For example the south or the Dorset coast) . Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. This belongs to: _____. 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. By contrast, when the rock strata are perpendicular to the coastline, the coast is referred to as discordant. What are the economic and environmental issues of energy production? 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. Both concordant and discordant. Lulworth Cove is a classic example of a 'concordant coast' - i.e. The Earth has around 620,000 kilometres (390,000 mi) of coastline. Wave refraction involves waves breaking onto an irregularly shaped coastline, e.g. The swash of a destructive wave is much weaker than its backwash. Concordant coastlines are also called 'concordant longitudinal' or 'Pacific type' coastlines. Coastal. 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 . A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. Coastlines, where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines. Will you pass the quiz? 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. Long offshore islands and coastal inlets are running parallel to the coastline. It is a valuable habitat for birds and plants eg a wide array of wading birds like the avocet. Pinterest. A coastline is anywhere where the land meets the water. The processes have been operating over the last 8000 years. 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. They are more common in winterthan in the summer. Long spits of sands run parallel to the low coast, enclosing the coast. A concordant coastline diminated by limestone in the map has the same type of rock along its length. 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 . Use the resources provided to write notes that Wave Refraction and Coastal Defences. A concordant coastline diminated by limestone in the map has the same type of rock along its length. https://commons.wikimedia.org/wiki/File:Lulworth.png. A concordant coastline occurs where the bands of differing rock types run parallel to the coast. How does flooding affect humans and the environment? Resistant Cretaceous Chalk forms the Foreland headland, projecting 2.5 km to the north. . The differing resistance to erosion leads to the formation of headlands and bays. They have a. gradient, typically under . You don't have permission to comment on this page. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (OCR). International migration from Syria to Europe, Japan A country with a high dependent population. Sea forces change coastal landscapes with the wind being the major source of waves. Importance of the Delta for the region. A concordant coastline comprises bands of different rock types that run parallel to the shore. Wrong! It is where salts and acids within the seawater will gradually dissolve some types of rock found along the coast. 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. 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. 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. The image below shows the narrow opening created in the limestone and the cove that formed afterwards. Awesome, well done! Type # 1. A concordant coastline has the same type of rock. Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. They have a low gradient, typically under one meter in height. Why is the weather of the UK so changeable? Additionally, hotter temperatures enable extreme weather events like hurricanes to occur more frequently. concordant and discordant coastlines bbc bitesize. Coastlines are constantly changing, with sea levels rising or falling, and it is no different with submergent coastlines. It is only when the water enters shallower areas that the water itself moves forward. The Dorset Coast contains a range of landforms including Durdle Door, Lulworth Cove . Fun Fact: Lulworth Cove is a World Heritage Site and attracts approximately 500,000 visitors a year. Little Hilbre Island (Cheshire) by Google Earth / ESRI, Imagery 2016 Getmapping plc, Map data 2016 Google. The coastal engineering for the shoreline protection involves: . Bull's Head in St Oswald's Bay. Deformation is the degree of tilting of folding ofrock. Rocks outcrop at right angles to the sea, forming headlands and bays. guildford school of acting auditions; gilroy google font alternative; cuisinart steamer insert; Blog Post Title February 26, 2018. 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. Discordant coastlines form where geology alternates between bands of hard and soft rock (see image below). Waves drag in the shallow water approaching a headland so the wave becomes high, steep and short. The water. 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). A concordant coastline has the same type of rock. Transportation is the movement of material from a coastline--such as sand and gravel--while deposition is the addition of material to a coastline. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. As Thor says, not bad at all. This is where waves approach the cliff; air may become trapped and compressed in joints and cracks along a cliff face. Both concordant and discordant. Adapted from BBC. The Earth has around 620,000 kilometres (390,000 mi) of coastline. Wrong! 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). 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. pptx, 1.58 MB. Identify the physical process that has shaped the pebble (1) Coasts - Grade Booster. A wave-cut notch is created by erosional processes such . 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. What is a discordant coastline? Caves, arches, stacks and stumps Weathering and erosion can create caves, arches, stacks and stumps along a headland.

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