Find out more about concordant coastlines. 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. Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. This means that these waves transport beach material back into the sea, lowering the height of a beach. Discordant coasts have a crenellated pattern of projecting headlands and indented bays. About 40% of the global population lives within 100km of a coastline. Shaping our coasts. As a result, it does not travel far up it. 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. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. If the direction of classifications is the same, the pairs are concordant. 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. Sea turtles return to coasts to lay their eggs, and birds like gulls and pelicans do much of their hunting near the shore. 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. (bands) of hard rock and soft rock; many bays and headlands. You know your landforms of coastal erosion. Practice Questions: Describe the differences between a concordant and a discordant coastline (4 marks) Explain how headlands form (3 marks) Explain how coves are formed (3 marks). - Internet Geography What is a concordant coastline? The Dorset Coast contains a range of landforms including Durdle Door, Lulworth Cove . A concordant coastline is an arrangement of rock strata along the coastline. BBC Bitesize. 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. (bands) of hard rock and soft rock; many bays and headlands. Waves are the main reason for coastal change. Changing rates of rainforest deforestation. PBworks / Help Tunisia Case Study. It is a valuable habitat for birds and plants eg a wide array of wading birds like the avocet. docx, 24.88 KB. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . Concordant coastlines tend to have fewer bays and headlands. A concordant coastline comprises bands of different rock types that run parallel to the shore. Coasts Revision Booklet. 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. 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 image below shows how the refracted wave becomes increasingly parallel to the shoreline. How have animals adapted to the rainforest environment? Shake Hands With Beef Girl, Lulworth Cove has occurred on a concordant coastline. Add in the missing words. Can the risks of volcanic eruptions be reduced? Practice Questions: Slideshow 2773107 by chanel Adapted from BBC. Coasts Revision Booklet. Meltwater rivers on land beyond the ice front deposited thick layers of sand and gravels onto outwash plains (sandurs). 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. The four major types of coastlines are emergent coastlines; submergent coastlines; concordant coastlines; and discordant coastlines. On discordant coastlines, differential erosion may occur, where bands of hard and soft rock outcrop at right angles to the sea. . A coastline with the same type of rock along its length; fewer bays and headlands . It has a variety of other micro-features and a unique geology. Tectonic forces produced by the collision of African and Eurasian plates compressed Carboniferous Limestone during the Alpine Orogeny 50 million years ago. Less resistant rocks are eroded more than the resistant . The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. 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. The processes have been operating over the last 8000 years. Bands of soft rock such as clay and sand are weaker therefore can be eroded quickly. 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. Lines of islands separated by narrow sea channels parallel to the coast (sounds). 2022 kinetico replacement filters, on concordant and discordant coastlines bbc bitesize, williams funeral home st thomas ont obits, Fix Toxic Relationship According To Childhood Trauma Test, Is It Illegal To Sleep In Your Car In Virginia, la crosse aquinas high school live stream, 707 concourse village west housing connect, do you have to transcribe stutters? Watch popular content from the following creators: ambs(@aambersaunders), Revision(@lastminstudies), - (@alevelhelp.32), GCSE revision 2022(@revision.2022), BBC Bitesize(@bbcbitesize), Revision(@lastminstudies), Revision . Rocks outcrop at right angles to the sea, forming headlands and bays. Sustainable development in the Temperate Deciduous Woodland. The fetch, often called the fetch length, is the length of water over which a given wind has blown. The Early Cretaceous, sometimes known as Lower Cretaceous, is the period stretching from 145 million years ago to 100.5 million years ago. A concordant coastline is where the same rock runs along the length of the coast. coastlines. Which type of underlying geology is most likely to be formed into straight cliffs? 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 ). Touch device users . 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. Discordant coasts have a crenellated pattern of projecting headlands and indented bays. Sustainable Management of the Tropical Rainforest, Sustainable Management of the Amazon Rainforest. A bedding plane is the interface between two sedimentary strata. Did you know? Contact the owner / RSS feed / This workspace is public, Rivers, Floods and Management (Physical Core), Drive, Dropbox, OneDrive, Gmail, and Slack. For example, this could be a joint in chalk. In some cases it is estimated that there was a rise . They are most common where .. is short. The LGP encompasses the period of c. 115,000 to c. 11,700 years ago. This is called a discordant coastline. Select all that apply. True or False: As sea levels rise, coastlines are likely to expand. Let's take a look at some of the different types of coastlines and their role in our geopolitics and global climate. Specifically looking at the differences between concordant and discordant coastlines. Why is the weather of the UK so changeable? Be perfectly prepared on time with an individual plan. 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. Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant. A ria is a drowned river valley that leads out to the sea. 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. True or False: Ria coastlines and Dalmatian landforms are both associated with submergent coastlines. 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 . A concordant coastline. Discordant coastlines - where the rock layers alternate between harder and softer rock, which bays and headlands are more likely . Which of the following are major types of coastlines? Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. full verbatim. During this time, glaciers and ice sheets were retreating, causing a rise in global sea levels and localised changes in land height. Figure 3: Location of Lulworth Cove, Dorset, UK, map data: 2022 Google. 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. Lulworth cove where an oval shaped bay has been formed by more rapid erosion of the less resistant clay that lie behind the . 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. Within geography, the definition of a coastline is the area where land meets water. Development, population change and the demographic transition model, Strategies for reducing the development gap, How can the growth of tourism reduce the development gap? 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. By contrast, when the rock strata are perpendicular to the coastline, the coast is referred to as discordant. Economic activities in glaciated upland areas, Glaciation Photo gallery Goat Fell, Isle of Arran. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Discordant These are where rock strata or structures are aligned at an angle to the coastline. The sea has broken through this barrier and easily eroded the clays behind it. Where the rock outcrops run parallel to the sea. A famous example of a coastline. Caves occur when waves force their way into cracks in the cliff face. In the Holocene Interglacial constructive waves pushed the ride of sands and gravel landwards as sea levels rose. Erosion. In some cases it is estimated that there was a rise . 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. Where do volcanoes and earthquakes happen? May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. Economic opportunities and challenges in Lagos. The Holderness Coastline is in the North of England and runs between the Humber Estuary in the south and a headland at Flamborough head. Paisajes. The low-energy wave spills into the bays as . You need to do some work on landforms of coastal erosion. Coastlines are formed through the processes of erosion, transportation, and deposition. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. Caves, arches, stacks and stumps Weathering and erosion can create caves, arches, stacks and stumps along a headland. This differential erosion creates headlands and bays along discordant coastlines. Figure 5: Lulworth Cove in Dorset, UK, map data: 2022 Google. Paymaya Annual Report, Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. - Headlands form along discordant coastlines in which bands of soft and hard rock outcrop at right angles to the coastline. As the wave breaks, it carries material up the beach in its swash. starter: Students examine the picture and discuss what is happening to the houses and why.
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