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What is the location and importance of Mumbai? Historic records indicate that over 250 m of land were lost between 1600 and 1850. 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. Why Is Biodiversity Critical To Life On Earth? Specification and other support materials for teachers, including delivery guides Explore. PDF Coasts Case Studies - SchoolGeography Discordant These are where rock strata or structures are aligned at an angle to the coastline. Figure 5: Lulworth Cove in Dorset, UK, map data: 2022 Google. Coastal Geology - Geography A-Level - Revision World However, when the hard rocks punctured by either faults or ridges, inland soft rocks yield to erosion. 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. Wave diffraction happens when the narrow opening to the cove causes the waves to bend, creating an arc shape wave. Concordant and Discordant Coastlines by Leia Daniels - Prezi Soft engineering: Beach nourishment is a type of soft approach. 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. It has a variety of other micro-features and a unique geology. Corrosion is also known as solution. 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? concordant coastlines. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. Use the resources provided to write notes that Wave Refraction and Coastal Defences. The Holderness Coastline is in the North of England and runs between the Humber Estuary in the south and a headland at Flamborough head. 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. Discordant These are where rock strata or structures are aligned at an angle to the coastline. This is a Geography revision website for the Edexcel A-Level from 2016 (so the new syllabus), and will contain my class notes, own research and detail from revision guides and textbooks. Consequently headlands and bays form along discordant coastlines and whilst headlands remain exposed to the force of the waves, bays are sheltered. Lulworth cove is a perfect horseshoe bay found on the south coast of England in the county of Dorset, on the Jurassic coastline. Extended writing tasks 2 a half term. Concordant and discordant coastlines. What are the environmental impacts of economic development in Nigeria? Discordant coastlines occur when bands of different types of rocks run perpendicular (at 90 degrees) to the coast. Nie wieder prokastinieren mit unseren Lernerinnerungen. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. A ria is a drowned river valley that leads out to the sea. Headlands and bays Cliffs along the coastline do not erode at the same pace. Create flashcards in notes completely automatically. Today. A famous example of a coastline. A coastline is an area where land meets the water. Erosion worsens as the waves becomes stronger. Concordant coastline 2. Stacks, headlands, bays, cliffs and wave-cut platforms are all included. Economic activities in glaciated upland areas, Glaciation Photo gallery Goat Fell, Isle of Arran. (8) Coasts - Grade Booster Geog' Clips If you have, then you've been to a coast and walked along a coastline. What are the effects of economic development in Nigeria on quality of life? The three major coastal processes include erosion, transportation and deposition. This creates a cove which is a circular area of water with a relatively narrow entrance way from the sea. Case studies Dorset Jurassic coast and Holderness. Earn points, unlock badges and level up while studying. -Erode the coast-Short wave length, high and steep. The four major types of coastlines are emergent coastlines; submergent coastlines; concordant coastlines; and discordant coastlines. Headlands are formed when the sea attacks a section of coast with alternating horizontal bands of hard and soft rock. While there are fjords all over the world, the most renowned fjord coasts are in Norway--and in fact, "fjord" is a Norwegian word. Coasts are shaped by the processes of erosion, transportation and deposition. Coastlines, where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines. Resistant Cretaceous Chalk forms the Foreland headland, projecting 2.5 km to the north. 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. Over 10 million students from across the world are already learning smarter. Dorset coastline - Coastal landforms - AQA - BBC Bitesize The sediment acts as a tool on the cliff, chiselling away at the surface and gradually wearing it down by removing small particles. These act as agents of erosion because their . Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. A case study of a sparsely populated area Himalayan Mountains, A case study of a densely populated area Greater London. 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. Concordant and discordant coasts . The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . How have animals adapted to cold environments? Coastal Erosion Landforms - Features and Formation - Blogger Joints,Dips and Faults in terms of rocks. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. What problems are caused by global warming? concordant coastlines. An emergent coastline that "emerges" from the water--either the land has risen, or the water level has fallen. During this time, glaciers and ice sheets were retreating, causing a rise in global sea levels and localised changes in land height. What is the site and situation of a settlement? . This produces lines of narrow islands parallel to the coast formed by projecting sections of anticlines. formed by the erosion of less resistant Wealden Clays. While not every UN member has ratified UNCLAS, most nations abide by it anyway. The differing resistance to erosion leads to the formation of headlands and bays. 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! Bands of soft rock such as clay and sand are weaker therefore they can be eroded quickly. Take a look at our resources under Topics in the menu at the top of the page. Fun Fact: if you are interested in dinosaurs and dinosaur fossils, Durlston Bay is a renowned site for Early Cretaceous fossils. 0. lulworth cove concordant coastline. Wave refraction involves waves breaking onto an irregularly shaped coastline, e.g. 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. Originally a band of resistant Portland . Fig. What is the impact of humans on the desert? This happened over about 1000 years, (very rapid) and submerged coastlines. Shaping our coasts. 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. The northern part is Eocene clay (Barton Beds), including significant deposits of Purbeck Ball Clay. Give the quiz another go and don't forget to read up on this area by heading over to our coasts resources using the topics link at the top of the page. Soft rocks like mudstone and siltstone Case Study: Coastal Management in Dawlish Warren - Blogger Human actions and Physical factors affecting the Delta. starter: Students examine the picture and discuss what is happening to the houses and why. Deformation is the degree of tilting of folding ofrock. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. On discordant coastlines, differential erosion may occur, where bands of hard and soft rock outcrop at right angles to the sea. Start studying BBC Geography Bitesize: Coastal Processes. Barton-on-Sea, in particular, is a well-known place to study coast erosion and sea-defence work, some successful, some partly successful, and some failed. 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 bands of soft rock, such as sand . Coastlines of Emergence. How has the vegetation in the temperate deciduous forest adapted to the climate? Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. weathering. Concordant Coasts . The Jurassic Coast begins at Orcombe . - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. 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. The differing resistance to erosion leads to the formation of headlands and bays. For example, this could be a joint in chalk. Published by at February 16, 2022. Case studies Dorset Jurassic coast and Holderness Extended writing tasks 2 a half term. Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. During a storm, the most common waves are destructive. 1 - Approximate locations on the coastline between Durlston Head and Studland Bay, map data: 2022 Google. Coastlines are constantly changing, with sea levels rising or falling, and it is no different with submergent coastlines. Cliffs and Wave-cut platforms Before you revise the formation of these landforms, have a look at this video and make sure you are able to identify the landforms from their distinctive features. The image below shows the narrow opening created in the limestone and the cove that formed afterwards. There are two special types of submerged coastlines: ria coasts and fjord coasts. Limestone Case Study Malham, The Yorkshire Dales. Create your own unique website with customizable templates. A case study of the coastal recession at the Nile Delta for Edexcel A Level Geography. Touch device users . What factors affect population density and distribution? How is urban planning improving the quality of life for the urban poor in Mumbai? (bands) of hard rock and soft rock; many bays and headlands. Why is the Human Development Index important? The procedure for calculating concordant and discordant pairs compares the classifications for two variables (for example, X and Y) on the same two items. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. chalk) . A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. North of Swanage, the chalk outcrop creates the headland which includes Old Harry Rocks. How has urbanisation helped Nigeria to develop? The more the waves crash onto the beach, the more sediment is washed out to sea. Rocks outcrop at right angles to the sea, forming headlands and bays. Even London is built along the River Thames, which flows into the North Sea. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). Best study tips and tricks for your exams. Waves move up and down there is no horizontal movement. Either way, there is now a (bit of) coastline that is no longer submerged under water. The geology of the Isle is complex. Discordant coastline . A concordant coastline has the same type. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. Wrong! coastlines. A concordant coastline is where the same rock runs along the length of the coast. 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). A concordant coastline diminated by limestone in the map has the same type of rock along its length. Let's take a look at some of the different types of coastlines and their role in our geopolitics and global climate. This cove is located near the village of West Lulworth and is one of the best examples of a concordant coastline. What are they? The processes have been operating over the last 8000 years. geography revision coastal landforms 264.4K views Discover short videos related to geography revision coastal landforms on TikTok. A concordant coastline is an arrangement of rock strata along the coastline. Along the coastline of Dorset, there are concordant and discordant coastlines. Practice Questions: Slideshow 2773107 by chanel coastlines. There are four processes involved in the eroding coastlines. The hard rock acts as a protective barrier to the softer rock behind it preventing erosion. Importance of the Delta for the region. Friction with the sea bed as waves approach the shore causes the wave front to become distorted or refracted as velocity is reduced. Discordant coastlines - where the rock layers alternate between harder and softer rock, which bays and headlands are more likely . Many of these types of coastlines were actually formed toward the end of the Last Glacial Period (LGP). 2. There are four major types of coastlines: emergent, submergent, discordant, and concordant. A wave-cut notch is created by erosional processes such . These waves are also known as plunging waves. South Dorset Coast 1. 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. Emergent coastlines have emerged from the water; submergent coastlines have submerged below the water. (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. In accordance with UNCLAS, territorial waters extend 12 nautical miles from the baseline. How does geology affect the formation of river landforms? concordant and discordant coastlines bbc bitesize Call us (+254) 722 22 99 44 Email polucon@polucon.com Our Laboratories Nairobi & Mombasa washington sports club glover park Home Services concordant and discordant coastlines bbc bitesize Micro-Biology Services Agri - Services Instrumentation Division Environment Division Petroleum Division These form where deposition produces unconsolidated geological structures parallel to the coastline.