concordant and discordant coastlines bbc bitesize
Key Question: What are the different landforms of the Jurassic Coast? Where do volcanoes and earthquakes happen? Discordant coasts have a crenellated pattern of projecting headlands and indented bays. Waves drag in the shallow water approaching a headland so the wave becomes high, steep and short. Did you know? What are the three processes that shape the coastline? In addition, as waves approach a coast, they are refracted so that their energy is concentrated around headlands but reduced around bays. 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 . Transportation is the movement of material from a coastline--such as sand and gravel--while deposition is the addition of material to a coastline. Introduction to the location of the Delta. May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. Their wavelength is long and a low frequency (8-10 waves per minute). These coastlines may lead to the formation of either Dalmatia landforms or Haffs (also called lagoons). In accordance with UNCLAS, territorial waters extend 12 nautical miles from the baseline. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. These act as agents of erosion because their . As stated earlier, coves are formed out of concordant coastlines. Figure 3: Location of Lulworth Cove, Dorset, UK, map data: 2022 Google. StudySmarter is commited to creating, free, high quality explainations, opening education to all. There are four major types of coastlines: emergent, submergent, discordant, and concordant. The differing resistance to erosion leads to the formation of headlands and bays. The image below shows the narrow opening created in the limestone and the cove that formed afterwards. We support the next generation of geographers and geoscientists, with inspiring educational videos for secondary school students and teachers. 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. When a stretch of coastline is formed from. of the users don't pass the Coastlines quiz! A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. In contrast with emergent coastlines, submergent coastlines are coastlines submerged under water due to rising sea levels. Jaden Agassi Mlb Draft 2021, What factors affect population density and distribution? Introduction to the location of the Delta. A concordant coastline has the same type of rock. GCSE 9-1 Coasts: Erosional Landforms Bundle. Gone surfing? Specification and other support materials for teachers, including delivery guides Explore. Waves move up and down there is no horizontal movement. Coastlines are formed through the processes of erosion, transportation, and deposition. What is the value of the tropical rainforest? Concordant coastlines tend to have fewer bays and headlands. The Adriatic Sea itself is a concordant landform, consisting of a body of water between parallel ranges. More resistant Jurassic Portland Limestone forms the Peveril Point headland to the south, projecting out by 1 km. The low-energy wave spills into the bays as . - Internet Geography What is a concordant coastline? Rock strata that are less resistant (due to the rock unit's lithology and structure) erode rapidly to form indented bays. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . What is a discordant coastline? As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. Discordant coastline . Touch device users . The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. This is called a discordant coastline. Where the rock outcrops run parallel to the sea. The northern part is Eocene clay (Barton Beds), including significant deposits of Purbeck Ball Clay. Sea turtles return to coasts to lay their eggs, and birds like gulls and pelicans do much of their hunting near the shore. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. Lulworth cove where an oval shaped bay has been formed by more rapid erosion of the less resistant clay that lie behind the . Waves in the middle of the bay, where the water is deeper, do not lose velocity as . There are two special types of submerged coastlines: ria coasts and fjord coasts. However, when the hard rocks punctured by either faults or ridges, inland soft rocks yield to erosion. The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. Beara Peninsula to the north formed from more resistant Devonian Old Red Sandstone and projects 35 km into the Atlantic Ocean. Categories . Discordant. Concordant Coasts . 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. They are most common where fetchis short. Test your knowledge with gamified quizzes. A coastline is anywhere where the land meets the water. Although now a coastal village, Happisburgh was once some distance from the sea, parted from the coast by the parish of Whimpwell, long since eroded away. UNCLAS implemented a universal system for maritime boundaries based on baselines, which are measured from the low-water line at the coast. How has rainforest vegetation adapted to the climate? The concordant coastline runs from west to east along the south coast. Waves can be gentle and infrequent or more significant, more frequent, and more powerful. Three complete lessons and a worksheet pack that cover the main erosional coastal landforms. 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. 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 wave-cut notch is created by erosional processes such . formed by the erosion of less resistant Wealden Clays. BBC iPlayer 37k followers More information Discordant and concordant coasts in Dorset Find this Pin and more on KS4 Changing Landscapes of the UK by Mr Haden. Concordant coastlines are also called 'concordant longitudinal' or 'Pacific type' coastlines. The sediment acts as a tool on the cliff, chiselling away at the surface and gradually wearing it down by removing small particles. Hilbre Island (Cheshire) is an example of a possible fieldwork location. Wave Refraction and Coastal Defences. Concordant coastline 2. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. Because the waves are so frequent, the backwash has less time to soak into the sand. Lulworth Cove and Stair Hole, with narrow openings, widening laterally parallel to the coast. What are the differences in global calorie intake and food supply? Which of the following is NOT typically found in a coastal ecosystem? 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 gradual breakdown of rocks due to . . In places such as Worbarrow Bay and St Oswald's Bay, lateral widening of coves led to them joining into a single bay, with remnants of the outer Portland left as a line of stumps parallel to the coast, e.g. Rocks outcrop at right angles to the sea, forming headlands and bays. Chesil Beach in Dorset was formed this way. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. 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. Importance of the Delta for the region. A concordant coastline is an arrangement of rock strata along the coastline. What is the site and situation of a settlement? Describe the characteristics of destructive waves (3) Coasts - Grade Booster. The extent to which the shape of a beach or coast is created or altered depends mainly on the action of waves upon it. How far out to territorial waters extend from the coast (or baseline)? Concordant coastlines are characterised by bands of similar types of rocks running parallel to 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. Headlands are formed when the sea attacks a section of coast with alternating horizontal bands of hard and soft rock. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. Headlands and bays Cliffs along the coastline do not erode at the same pace. The length of perimeter approx 2km. A concordant coastline is an arrangement of rock strata along the 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 ). Discordant. It has a discordant coastline along the east and concordant coastline along the south. A wave-cut notch is created by erosional processes such . What are the economic and environmental issues of energy production? Lulworth Cove is a World Heritage site and part of the Heritage Coastline. While not every UN member has ratified UNCLAS, most nations abide by it anyway. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. . Nie wieder prokastinieren mit unseren Lernerinnerungen. For example, this could be a joint in chalk. 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). Ripples are created; these ripples will become waves if the wind is sustained. . Erosion. This belongs to: _____. A concordant coastline. Identify your study strength and weaknesses. Many of these types of coastlines were actually formed toward the end of the Last Glacial Period (LGP). Best study tips and tricks for your exams. The site is self-funded and your support is really appreciated. 3. This differential erosion creates headlands and bays along discordant coastlines. (bands) of hard rock and soft rock; many bays and headlands. Swam in the ocean? The Dorset Coast contains a range of landforms including Durdle Door, Lulworth Cove . English: - Romeo and Juliet (York Notes) 978-1447982234 An Inspector Calls (York Notes) 978-1447982166 GCSE English Literature for AQA . How has hot desert vegetation adapted to the climate? A concordant coastline produced by the geological structure of folds parallel to the coast. The length of perimeter approx 2km. Where the land rises to the sea there are several parallel strata of Jurassic rocks, including Portland limestone and the . . This results in the formation of headlands and bays. 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. 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). Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. What are the air masses that affect the UK? Gradually the material is moved along the coastline, its . The three major coastal processes include erosion, transportation and deposition. A bedding plane is the interface between two sedimentary strata. How does flooding affect humans and the environment? If you have, then you've been to a coast and walked along a coastline. 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. Case studies Dorset Jurassic coast and Holderness. As our Earth warms, glaciers melt, causing the sea level to rise. Historic records indicate that over 250 m of land were lost between 1600 and 1850. . Bay and headland - Durdle Door, Dorset. Discordant and Concordant Coastlines GCSE Geography A Level Revision Coasts - YouTube 2:20 Discordant and Concordant Coastlines GCSE Geography A Level Revision Coasts TheGeographyGuy 1.66K. Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. The rise in sea level can be the result of an increase in water volume or the sinking of the land's surface. While there are fjords all over the world, the most renowned fjord coasts are in Norway--and in fact, "fjord" is a Norwegian word. Less resistant Purbeck limestone and Wealden Clay lie behind the Portland, with resistant chalk further north. Then when the wave retreats, the compressed air expands again. Long spits of sands run parallel to the low coast, enclosing the coast. How do changes affect the balance of an ecosystem? 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. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . True or False: Concordant coastlines form coves. GCSE and A Level Geography Revision. On discordant coastlines, differential erosion may occur, where bands of hard and soft rock outcrop at right angles to the sea. Pinterest. The differing resistance to erosion leads to the formation of headlands and bays. Discordant coastlines are characterised by different bands of rocks running perpendicular to the coast. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Soft engineering: Beach nourishment is a type of soft approach. 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! She is cooler than I am and has a life instead of enough time to make this. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. The geology of the Isle is complex. The northern part is Eocene clay (Barton Beds), including significant deposits of Purbeck Ball Clay. The sea has broken through this barrier and easily eroded the clays behind it. Aqa. Humans, too, could almost be classified as a coastal species! guildford school of acting auditions; gilroy google font alternative; cuisinart steamer insert; Blog Post Title February 26, 2018. Discordant coasts forms where geological structure is such that different rock strata of folds are aligned at an angle to the coastline. Concordant. Even London is built along the River Thames, which flows into the North Sea. Hilbre Island (Cheshire) is an example of a possible fieldwork location. BBC Bitesize Geoguessr Google Maps Gapminder . Created up folded ridges (anticlines) and down folded valleys (synclines) aligned parallel to 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). North of Swanage, the chalk outcrop creates the headland which includes Old Harry Rocks. Practice Questions: Slideshow 2773107 by chanel Coasts Revision Booklet. In 1982, the United Nations held a Convention on the Law of the Sea (UNCLAS), where maritime (sea) boundaries were established. Which of the following are associated with discordant coastlines? The outer hard provides a protective barrier to erosion of the softer rocks further inland. Discordant coasts are also known as Atlantic coasts, after the Cork coastline in the Republic of Ireland. Stop procrastinating with our smart planner features. Specifically looking at the differences between concordant and discordant coastlines. The concordant coastline runs from west to east along the south coast. Emergent Coastlines. Coastlines also help us demarcate international boundaries. 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 strata (or bands) of hard rock and soft rock are called discordant coastlines. 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. Discordant and concordant coasts in Dorset. Create your own unique website with customizable templates. Both concordant and discordant. The processes have been operating over the last 8000 years. Caves, Arches, Stacks and Sumps 3. This belongs to: _____. The discordant coastline runs from During this time, glaciers and ice sheets were retreating, causing a rise in global sea levels and localised changes in land height. Large particles like boulders are pushed along the bottom of the river bed/sea by the force of the water. The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. The Early Cretaceous, sometimes known as Lower Cretaceous, is the period stretching from 145 million years ago to 100.5 million years ago. Click To Play 1. Pebble sized particles are bounced along the river bed/sea by the force of the water. Erosion worsens as the waves becomes stronger. Little Hilbre Island (Cheshire) by Google Earth / ESRI, Imagery 2016 Getmapping plc, Map data 2016 Google. Concordant. This produces lines of narrow islands parallel to the coast formed by projecting sections of anticlines. Less resistant rocks are eroded more than the resistant . Headlands and bays can form on concordant coastlines too, as has happened . PSYCHIC TWINS . This is considered sovereign national territory, the same as boundaries on land. Headlands and Bays 2. Discordant coasts have a crenellated pattern of projecting headlands and indented bays. This happened over about 1000 years, (very rapid) and submerged coastlines. 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. What is the impact of humans on the Taiga? The LGP encompasses the period of c. 115,000 to c. 11,700 years ago. The concordant coastline runs from west to east along the south coast. Headlands and bays can form on concordant coastlines too, as has happened . Today. Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. Stop procrastinating with our study reminders. Coastal Geology. Teacher. 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). Correct! The high degree of indentation of Bantry Bay is not solely influenced by the relative resistance of rock types, but also the orientation of strata SW-NE means that they directly face high energy Atlantic waves driven by the prevailing SW wind. What is the Demographic Transition Model? Coasts Revision Booklet. 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. Discordant coastlines have bands of different rock types running perpendicular to the coast; concordant coastlines have bands of similar rock types running parallel to the coast. A concordant coastline is an arrangement of rock strata along the coastline. Type # 1. This quiz focusses in particular on those features which are caused by coastal erosion. Lulworth cove is a perfect horseshoe bay found on the south coast of England in the county of Dorset, on the Jurassic coastline. Subsequently there was an increase in the waters of the oceans and the sea level rose appreciably. Concordant coastlines tend to have fewer bays and headlands. Sustainable development in the desert The Great Green Wall. Both concordant and discordant. There are four processes involved in the eroding coastlines. Concordant coastlines tend to have fewer bays and headlands. The differing resistance to erosion leads to the formation of headlands and bays. One of the topics looked at in GCSE Geography is the features that are found on a coastline. geography revision coastal landforms 264.4K views Discover short videos related to geography revision coastal landforms on TikTok. Emergent Coastlines. This cove is located near the village of West Lulworth and is one of the best examples of a concordant coastline.
