Coastal Erosion - Geography AS Geology is the study of the types of rocks that make up the Earth's crust. What is the Demographic Transition Model? 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. Fun Fact: Lulworth Cove is a World Heritage Site and attracts approximately 500,000 visitors a year. Set individual study goals and earn points reaching them. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. This produces lines of narrow islands parallel to the coast formed by projecting sections of anticlines. Sometimes the outer hard rock is punctured allowing the sea to erode the softer rocks behind. Shaping our coasts. Students will learn about different types of rock and will consider how resistance can affect rates of erosion. Within geography, the definition of a coastline is the area where land meets water. These Dalmatian types normally occur . Three complete lessons and a worksheet pack that cover the main erosional coastal landforms. The process begins with seawater hitting on the coastline. Learn vocabulary, terms, and more with flashcards, games, and other study tools. For example, both X and Y rate item 1 higher than item 2. These are coastlines where the bands of rock run perpendicular to the coastline meaning . How have animals adapted to cold environments? If they move in opposite directions - one increases while the other decreases - then the pair is discordant. 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 . Hilbre Island (Cheshire) is an example of a possible fieldwork location. concordant and discordant coastlines bbc bitesize - hillsboro, ohio newspaper classifieds - hillsboro, ohio newspaper classifieds - discordant coastline diagram. 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. 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. False! Okay, now we know what coastlines are. formed by the erosion of less resistant Wealden Clays. There are four processes involved in the eroding coastlines. How has urbanisation helped Nigeria to develop? Discordant coastlines occur when bands of different types of rocks run perpendicular (at 90 degrees) to the coast. Stacks, headlands, bays, cliffs and wave-cut platforms are all included. How is urban planning improving the quality of life for the urban poor in Mumbai? Students will learn about the different types of erosion at the coast and will be able to explain how they create coastal landforms. The coastline determines everything. 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. The Early Cretaceous, sometimes known as Lower Cretaceous, is the period stretching from 145 million years ago to 100.5 million years ago. docx, 24.88 KB. A discordant coastline occurs where bands of different rock type run perpendicular to the coast. There are 3 main groups of coastal features which result from coastal erosion: 1. Extended writing tasks 2 a half term. Concordant coastlines tend to have fewer bays and headlands. True or False: As sea levels rise, coastlines are likely to expand. Headlands are formed when the sea attacks a section of coast with alternating horizontal bands of hard and soft rock. Published by at February 16, 2022. May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. This is important in delineating who has legal, economic, and military jurisdiction in areas along the coast. As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. Coastal Geology - Geography A-Level - Revision World Practice Questions: Slideshow 2773107 by chanel coastlines. The processes have been operating over the last 8000 years. Can the risks of volcanic eruptions be reduced? Full lesson covering the different types of erosion and geology along the coast. When a stretch of coastline is formed from different types of rock, headlands and bays can form. They have a. gradient, typically under . Why Is Biodiversity Critical To Life On Earth? The Most Astonishing Coastlines In The World - Culture Trip Ria coastlines are a type of submergent coastline, but Dalmation landforms are associated with concordant coastlines. A concordant coastline is an arrangement of rock strata along the coastline. - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. Tip: To turn text into a link, highlight the text, then click on a page or file from the list above. Consequently headlands and bays form along discordant coastlines and whilst headlands remain exposed to the force of the waves, bays are sheltered. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). This differential erosion creates headlands and bays along discordant coastlines. A case study of the coastal recession at the Nile Delta for Edexcel A Level Geography. Introduction to the location of the Delta. A joint is a fracture of rock without movement from the original position, e.g. These coastlines may lead to the formation of either Dalmatia landforms or Haffs (also called lagoons). Great Ocean Road, Australia. Coastal Geology. A unique coastline within the UK is Lulworth Cove in Dorset. Emergent coastlines happen when either the water level has fallen or the land has risen. Time for Geography | Coasts Videos English: - Romeo and Juliet (York Notes) 978-1447982234 An Inspector Calls (York Notes) 978-1447982166 GCSE English Literature for AQA . . Concordant coastline - Wikipedia Meltwater rivers on land beyond the ice front deposited thick layers of sand and gravels onto outwash plains (sandurs). coastlines. Coastlines of Emergence. Today. How has rainforest vegetation adapted to the climate? Destructive waves are usually . Lulworth Cove is located on the so-called Jurassic Coast, spanning 185 million years of geological history, from the Triassic (252 - 201 million years ago), Jurassic (199.6 - 145.5 million years ago), and Cretaceous (145 - 66 million years ago) periods. The results are deep, lengthy, thin inlets surrounded by high cliff faces. 1. What are the social and economic opportunities associated with the growth of Rio? Identify your study strength and weaknesses. Waves are created as wind blows over the water causing friction; this causes the water to start to move in a circular orbit. The swash of a destructive wave is much weaker than its backwash. An explanation of the formation of the cove can be found on the right. The relative resistance of rock types influences the degree of indentation of bays. Why is there a trend towards agribusiness? 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). What are the impacts of industry on the physical environment? During the Devensian glacial the sea level was about 100 m lower than today as water was retained in huge ice sheets. 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). Key Question: What are the different landforms of the Jurassic Coast? Geology. The hard rock that forms Lulworth Cove is called the Portland limestone and chalk whereas the soft rock is clay. UNCLAS implemented a universal system for maritime boundaries based on baselines, which are measured from the low-water line at the coast. A concordant coastline is an arrangement of rock strata along the coastline. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). 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. 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). Where the rock outcrops run parallel to the sea. Long spits of sands run parallel to the low coast, enclosing the coast. 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. Discordant coasts are also known as Atlantic coasts, after the Cork coastline in the Republic of Ireland. Both concordant and discordant. 2B.2B Their Morphology - A-LEVEL GEOGRAPHY REVISION: EDEXCEL Erosion worsens as the waves becomes stronger. Bands of soft rock such as clay and sand are weaker therefore they can be eroded quickly. gcsegeographyatheathfield: Coasts 3 Revision Guides Business Studies: - Revise Edexcel GCSE Business, Units 1, 3 & 5 Revision Guide Revise Edexcel GCSE Business, Units 1, 3 & 5 Revision workbook Computing: - Students have already been provided with a revision guide and question books. Or in other words, these types of coastlines have the same type of rock all along its length. 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 headlands are formed by the hard rocks such as limestone and chalk while the bays are formed as a result of the sweeping away of the soft rocks like clay and sand. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. 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. What are the air masses that affect the UK? (BBC, 2006). Type # 1. The concordant coastline runs from west to east along the south coast. How do weather and climate affect river landscapes? . Discordant coastlines form where geology alternates between bands of hard and soft rock (see image below). Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Limestone Case Study Malham, The Yorkshire Dales. Coastlines will expand as climate change continues. - Headlands form along discordant coastlines in which bands of soft and hard rock outcrop at right angles to the coastline. (For example the east of the Dorset coast) How Geology affects the coast . The difference in rock types between discordant and concordant coastlines means that there are differences in erosion. Concordant Coasts . shale), eroding quicker than the hard, resistant rock (e.g. Selenium Deficiency In Baby Goats, Concordant. In some cases it is estimated that there was a rise . Straight coastline now formed by a concordant band of constant chalk. Have all your study materials in one place. 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. GCSE Geography | Coastline Features Caused by Coastal Erosion 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. . A famous example of a coastline. Coastlines of Submergence: i. Ria Coast: During the Ice Age a great deal of water was locked up in ice. How do changes affect the balance of an ecosystem? Stop procrastinating with our study reminders. Paired spits formed parallel to the coast with haff lagoon behind at the mouth of the River Vistula in Gdansk. 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. Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. The Bay is also a product of sea level rise, since river erosion cut a low-relief river valley into Carboniferous Limestone, allowing the sea to flood inland and creating a ria at the start of the Holocene. Less resistant rocks are eroded more than the resistant . Watch popular content from the following creators: ambs(@aambersaunders), Revision(@lastminstudies), - (@alevelhelp.32), GCSE revision 2022(@revision.2022), BBC Bitesize(@bbcbitesize), Revision(@lastminstudies), Revision . 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 ). 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 . We support the next generation of geographers and geoscientists, with inspiring educational videos for secondary school students and teachers. It is used in geography and meteorology and is usually associated with coastal erosion.It plays a large part in longshore drift as well. Large particles like boulders are pushed along the bottom of the river bed/sea by the force of the water. Soft rocks like mudstone and siltstone The image below shows a wave-cut platform formed at Flamborough, Holderness Coast. This means that these waves transport beach material back into the sea, lowering the height of a beach. Geology. Gcse Geography Revision. Share 5.1K views 2 years ago This video explains the difference between a concordant and discordant coastline, including the coastal landforms that occur along each and the geological. concordant and discordant coastlines bbc bitesize. Headlands and bays - Coastal landforms - CCEA - BBC Bitesize What is the role of transnational companies in Nigeria? The three major coastal processes include erosion, transportation and deposition. Pinterest. 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. A bedding plane is the interface between two sedimentary strata.
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