concordant and discordant coastlines bbc bitesize concordant and discordant coastlines bbc bitesize

Create your own unique website with customizable templates. 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. Importance of the Delta for the region. Shaping our coasts. This belongs to: _____. Case studies Dorset Jurassic coast and Holderness. Discordant and concordant coasts in Dorset. material at the coast and in a river. The differing resistance to erosion leads to the formation of headlands and bays. The soft rock is made of clay and sands, and the hard rock is chalk and limestone. Case studies Dorset Jurassic coast and Holderness Extended writing tasks 2 a half term. The processes have been operating over the last 8000 years. May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. How has urbanisation helped Nigeria to develop? How is a cold environment interdependent? dxterity stock symbol / nice houses for sale near amsterdam / nice houses for sale near amsterdam Why are deserts located along the tropics? Explain the process of longshore drift (3) Coasts - Grade Booster. Today. Concordant coastlines tend to have fewer bays . Long spits of sands run parallel to the low coast, enclosing the coast. Why Is Biodiversity Critical To Life On Earth? If they move in opposite directions - one increases while the other decreases - then the pair is discordant. Bands of soft rock such as clay and sand are weaker therefore can be eroded quickly. 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. Geology. 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. Re-rerouting a two lane road can cost between 150,000 and 250,000 per 100 m. The collapse of the section of coast supporting the South Devon Main Line Railway in February 2014 cost 35 million to repair, and businesses in the South West lost 60 million. 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. The procedure for calculating concordant and discordant pairs compares the classifications for two variables (for example, X and Y) on the same two items. How has hot desert vegetation adapted to the climate? Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. Specification and other support materials for teachers, including delivery guides Explore. A concordant coastline has the same type of rock. GCSE and A Level Geography Revision. Concordant Coasts Concordant coasts form where geological structure is such that different rock strata or folds are aligned parallel to the coastline. True or False: Concordant coastlines form coves. Numerous plants and animals have adapted to live along coastlines. We use cookies to ensure that we give you the best experience on our website. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. They have low energy and an elliptical orbit. For example the Neman Haff behind the bar running from the Kaliningrad in Russia to the Lithuanian coast at the mouth of the river Neman. For example, both X and Y rate item 1 higher than item 2. This process happens over thousands of years. Introduction to the location of the Delta. How did the temperate deciduous woodland get like this? Terms of use / Privacy policy / GDPR, About this workspace South Dorset Coast Dalmatian coastline Formed by faulting and rising sea levels since the end of the last ice age West Cork, Ireland 1.Discordant Coastline 2.Rias Rock strata meets the coast at 90 degrees in parallel bands Weaker rocks (limestones) have been eroded creating long, thin bays (rias) in-between the mudstones and old . . 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. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. The image below (figure 2) is taken at Durlston Head, which shows the bay (yellow) and the headland (red). Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . How does food insecurity affect the environment? Have all your study materials in one place. Economic losses to businesses if areas become unattractive and depopulated. Concordant coastlines tend to have fewer bays and headlands. than in summer. 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. 3. Bull's Head in St Oswald's Bay. The Adriatic Sea itself is a concordant landform, consisting of a body of water between parallel ranges. Ways destructive waves destroy the coastline . A bedding plane is the interface between two sedimentary strata. Distribution of earthquakes and volcanoes, Effects of earthquakes and volcanoes on people and the environment, Reducing the impacts of earthquakes and volcanoes, Population and settlement iGCSE Geography, The main causes of a change in population size, A country with a rate of high population growth China, A country which is over-populated Bangladesh, A country which is under-populated Australia, A country with a low rate of population growth or decline Japan. The rock types are typically of . A concordant coastline produced by the geological structure of folds parallel to the coast. In contrast with emergent coastlines, submergent coastlines are coastlines submerged under water due to rising sea levels. Students will learn about different types of rock and will consider how resistance can affect rates of erosion. Fun Fact: if you are interested in dinosaurs and dinosaur fossils, Durlston Bay is a renowned site for Early Cretaceous fossils. 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 . What feature is left behind as the cliff retreats? This happened over about 1000 years, (very rapid) and submerged coastlines. An emergent coastline that "emerges" from the water--either the land has risen, or the water level has fallen. Discordant These are where rock strata or structures are aligned at an angle to the coastline. coastlines. Fig. Can the risks of volcanic eruptions be reduced? Additionally, hotter temperatures enable extreme weather events like hurricanes to occur more frequently. discordant coastlines. What are they? It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. 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. Changing rates of rainforest deforestation. They have a low gradient, typically under one meter in height. Correct! Discordant coastlines form where geology alternates between bands of hard and soft rock (see image below). . This process. A joint is a fracture of rock without movement from the original position, e.g. Where are Temperate Deciduous Woodlands Located? The sea has broken through this barrier and easily eroded the clays behind it. As a wave undercuts a cliff the cliff retreats. Historic records indicate that over 250 m of land were lost between 1600 and 1850. Emergent coastlines can pop up after tectonic activity, where the land is being pushed up by the tectonic plates. Coasts can be classified in a variety of . Specifically looking at the differences between concordant and discordant coastlines. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. (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. 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, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Pinterest (Opens in new window), Click to email a link to a friend (Opens in new window), Click to share on WhatsApp (Opens in new window), Internet Geography Plus Terms and Conditions. The site is self-funded and your support is really appreciated. A coastline with the same type of rock along its length; fewer bays and headlands. Concordant coastline Uncordant coastline Variable coastline 8. We support the next generation of geographers and geoscientists, with inspiring educational videos for secondary school students and teachers. A discordant coastline occurs where bands of different rock type run perpendicular to the coast. Geology is the study of the types of rocks that make up the Earth's crust. Insert links to other pages or uploaded files. 4 - the process of forming Lulworth Cove, Dorset, UK. Discordant coastlines - where the rock layers alternate between harder and softer rock, which bays and headlands are more likely . What factors influence the effects and response to tectonic activity? The warmer climate that followed melted much of the ice. Rocks outcrop at right angles to the sea, forming headlands and bays. In some cases it is estimated that there was a rise . Spits were formed in river mouths where the river was powerful enough to break through the sand ridge to the sea. The following are facts about destructive waves. 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. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . Sediment Cells. Bits of rock and sand that the waves have picked up are thrown against the cliff face. The angle these bands make with the coastline makes it either a concordant or discordant coastline. Identify your study strength and weaknesses. Emergent coastlines happen when either the water level has fallen or the land has risen. (BBC, 2006). The latter can happen when tectonic forces lowered the land level or when river deposits and compaction of alluvial (river) sediments occur. Concordant coastline 2. This creates a cove which is a circular area of water with a relatively narrow entrance way from the sea. Concordant coastlines are characterised by bands of similar types of rocks running parallel to the coast. 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 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. 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. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. When a stretch of coastline is formed from. These act as agents of erosion because their . Corrosion is also known as solution. Where the rock outcrops run parallel to the sea. Test your knowledge with gamified quizzes. 2. How has the vegetation in the temperate deciduous forest adapted to the climate? Created up folded ridges (anticlines) and down folded valleys (synclines) aligned parallel to the coast. 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 . The differing resistance to erosion leads to the formation of headlands and bays. Published by at February 16, 2022. 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. Protection of cold environments as wilderness areas. Coastal Erosion. These are where rock strata or structures are aligned at an angle to the coastline. Coastlines will expand as climate change continues. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). There are four processes involved in the eroding coastlines. Concordant Coasts . How do weather and climate affect river landscapes? A concordant coastline. What is the structure of the Temperate Deciduous Woodland? Upload unlimited documents and save them online. guildford school of acting auditions; gilroy google font alternative; cuisinart steamer insert; Blog Post Title February 26, 2018. Consequently headlands and bays form along discordant coastlines and whilst headlands remain exposed to the force of the waves, bays are sheltered. These form where deposition produces unconsolidated geological structures parallel to the coastline. 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. starter: Students examine the picture and discuss what is happening to the houses and why. Subsequently there was an increase in the waters of the oceans and the sea level rose appreciably. Which type of underlying geology is most likely to be formed into straight cliffs? Which of the following are associated with discordant coastlines? The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . The sea attacks a weakness in the base of the cliff. Fetch length along with the wind speed (or strength) determines the size of waves produced. This lesson was designed initially for an interview, and worked really well for a 50 minute lesson duration. Named after the Dalmatia region on the Adriatic Sea. What are the different types of weathering? Resistant Cretaceous Chalk forms the Foreland headland, projecting 2.5 km to the north. A chalk cliff face is at the back of the cove. Set individual study goals and earn points reaching them. pptx, 1.58 MB. e.g. Coasts Revision Booklet. You don't have permission to comment on this page. Or in other words, these types of coastlines have the same type of rock all along its length. This differential erosion creates headlands and bays along discordant coastlines. Soluble materials dissolve in water and are carried along. A wave-cut platform is a wide, gently sloping surface found at the cliff's base and extends into the sea. More resistant strata erode only slowly, and are left projecting into the sea as headlands. Caves, arches, stacks and stumps Weathering and erosion can create caves, arches, stacks and stumps along a headland. A coastline is an area where land meets the water. Waves are produced by friction between the wind and water, resulting in an energy transfer from the wind to the sea. Under 5's Football Coaching Drills, Or built a sand castle next to the waves? What are the environmental impacts of economic development in Nigeria? BBC Bitesize Geoguessr Google Maps Gapminder . Fun Fact: Lulworth Cove is a World Heritage Site and attracts approximately 500,000 visitors a year. 1. Paymaya Annual Report, Paired spits formed parallel to the coast with haff lagoon behind at the mouth of the River Vistula in Gdansk.