Hydraulic action, attrition, abrasion, and corrosion. 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. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . docx, 24.88 KB. Fjords are created when glaciers cut through valleys and are submerged. Headlands and bays can form on concordant coastlines too, as has happened . What are the differences in global calorie intake and food supply? The Adriatic Sea itself is a concordant landform, consisting of a body of water between parallel ranges. The hard rock acts as a protective barrier to the softer rock behind it preventing erosion. pg. formed by the erosion of less resistant Wealden Clays. Concordant coastline - Wikipedia Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. This happened over about 1000 years, (very rapid) and submerged coastlines. Paw Patrol Does Ryder Have A Crush On Katie, Named after the Dalmatia region on the Adriatic Sea. While discordant coastlines have bands of different rock types running perpendicular to the coast, concordant coastlines have bands of similar rock types running parallel (alongside) to the coast. Coastal Geology - Geography A-Level - Revision World A joint is a fracture of rock without movement from the original position, e.g. Wave diffraction happens when the narrow opening to the cove causes the waves to bend, creating an arc shape wave. . The more the waves crash onto the beach, the more sediment is washed out to sea. Coastal. A coastline is an area where land meets the water. 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. Insert links to other pages or uploaded files. Best free resources for CAIE IGCSE Geography 0460 Theory including summarized notes, topical and past paper walk through videos by top students. How does flooding affect humans and the environment? A famous example of a coastline. This belongs to: _____. What are the effects of deforestation in the Amazon? 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). A concordant coastline is an arrangement of rock strata along the coastline. Where the land rises to the sea there are several parallel strata of Jurassic rocks, including Portland limestone and the . Discordant. Geology is the study of the types of rocks that make up the Earth's crust. Published by at February 16, 2022. (For example the south or the Dorset coast) . Both concordant and discordant. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. discordant coastline diagram - Flix Houphout-Boigny Foundation for It can be reached at low tide by walking from the mainland. 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). 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. As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. Aqa. When the following wave breaks, its swash will deposit more material without it being 'captured' by the backwash of the preceding wave. 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 . Concordant Coasts . More erosion at the present (2016-2017) is occurring further east, down drift, in the Barton Golf Course and Hordle Cliff area, as a result of the Barton Sea Defences (the so-called "Terminal . What are the effects of economic development in Nigeria on quality of life? The differing resistance to erosion leads to the formation of headlands and bays. Sign up to highlight and take notes. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. The warmer climate that followed melted much of the ice. How have plants adapted to cold environments? Extended writing tasks 2 a half term. Bays and headlands are common features along discordant coastlines. BBC Bitesize. The processes have been operating over the last 8000 years. The image below shows a wave-cut platform formed at Flamborough, Holderness Coast. You know your landforms of coastal erosion. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. . Sea level rise at the end of the Devensian Glacial overtopped the low points of the anticlines and the sea flooded synclines. It has a variety of other micro-features and a unique geology. Then when the wave retreats, the compressed air expands again. 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. Emergent coastlines happen when either the water level has fallen or the land has risen. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. Geology. BBC Bitesize. Discordant coasts have a crenellated pattern of projecting headlands and indented bays. The process of erosion can create different landforms along the coastline. Key Question: What are the different landforms of the Jurassic Coast? Lulworth Cove has occurred on a concordant coastline. Where are Temperate Deciduous Woodlands Located? The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. It remains England's only natural World Heritage Site. More resistant Jurassic Portland Limestone forms the Peveril Point headland to the south, projecting out by 1 km. Discordant These are where rock strata or structures are aligned at an angle to the coastline. The differing resistance to erosion leads to the formation of headlands and bays. This results in the formation of headlands and bays. Case studies Dorset Jurassic coast and Holderness. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. 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). Sustainable development in the desert The Great Green Wall. As it does so continually, the hard rocks resist erosion resulting in the protection of the soft rocks. Lines of islands separated by narrow sea channels parallel to the coast (sounds). chalk) May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. Rocks outcrop at right angles to the sea, forming headlands and bays. The length of perimeter approx 2km. What is the difference between a tornado and a hurricane? If you've been to the beach, you've been to a coastline! It is only when the water enters shallower areas that the water itself moves forward. Coasts can be classified in a variety of . May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. Why is the weather of the UK so changeable? The gradual breakdown of rocks due to . As a result, it does not travel far up it. One of the topics looked at in GCSE Geography is the features that are found on a coastline. 3. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. The part of the wave in the deeper water moves forward faster causing the wave to bend. When the auto-complete results are available, use the up and down arrows to review and Enter to select. 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. Both concordant and discordant. Created up folded ridges (anticlines) and down folded valleys (synclines) aligned parallel to the coast. PSYCHIC TWINS . Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (OCR). The Dorset Coast contains a range of landforms including Durdle Door, Lulworth Cove . In some cases it is estimated that there was a rise . Large particles like boulders are pushed along the bottom of the river bed/sea by the force of the water. - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. Paired spits formed parallel to the coast with haff lagoon behind at the mouth of the River Vistula in Gdansk. Discordant coastline - Source www.bbc.co.uk As soft rock, such as glacial till, is more susceptible to erosion it erodes more rapidly than more resistant rock such as chalk. Limestone Case Study Malham, The Yorkshire Dales. The differing resistance to erosion leads to the formation of headlands and bays. Why is the Human Development Index important? The shifting coastlines can impact freshwater resources near the coasts by creating brackish mixtures, and can also pose an obvious danger to infrastructure built directly along the coast. The image below shows the narrow opening created in the limestone and the cove that formed afterwards. Concordant coastlines tend to have fewer bays and headlands. The Jurassic Coast begins at Orcombe . For example, this could be a joint in chalk. Destructive waves are usually . How is urban planning improving the quality of life for the urban poor in Mumbai? The process begins with seawater hitting on the coastline. This means that these waves transport beach material back into the sea, lowering the height of a beach. Concordant coastline. 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 ). Where the land rises to the sea there are several parallel strata of Jurassic rocks, including Portland limestone and the . Geology is the study of the types of rocks that make up the Earth's crust. What is Nigerias location and importance? Fig. Sea turtles return to coasts to lay their eggs, and birds like gulls and pelicans do much of their hunting near the shore. If the coastline is discordant then the rock type will change as we go up the coastline, An example of a discordant coastline is swanage. What is the structure of the Temperate Deciduous Woodland? When the auto-complete results are available, use the up and down arrows to review and Enter to select. An example of a popular cove situated in a concordant coastline is the Lulworth Cove. Portland limestone erodes very slowly, retreating landwards by marine undercutting and collapse to form a straight W-E coastline. Can the risks of volcanic eruptions be reduced? If you continue to use this site we will assume that you are happy with it. Practice Questions: Slideshow 2773107 by chanel Coasts Revision Booklet. What are they? Deformation is the degree of tilting of folding ofrock. What does scenery formed by erosion look like? Set individual study goals and earn points reaching them. 2. discordant coastlines. How does food insecurity affect the environment? Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). Pinterest. A case study of the coastal recession at the Nile Delta for Edexcel A Level Geography. Be perfectly prepared on time with an individual plan. Coastal Erosion Landforms - Features and Formation - Blogger Discordant. 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. The outer hard rock is Portland limestone. How has urbanisation helped Nigeria to develop? StudySmarter is commited to creating, free, high quality explainations, opening education to all. 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 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. Limited law enforcement jurisdiction to prevent crimes related to customs or trafficking.

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