How has demand for water in the UK changed? 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 are constantly changing, with sea levels rising or falling, and it is no different with submergent coastlines. caused by the shrinkage of igneous rock as it cools. Links to wider reading and an introductory video. As stated earlier, coves are formed out of concordant coastlines. Coasts can be classified in a variety of . What are the physical characteristics of cold environments? pg. 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. a headland separated by two bays. The difference in rock types between discordant and concordant coastlines means that there are differences in erosion. This belongs to: _____. BBC Bitesize. The first difference between concordant and discordant coastlines is that the concordant coastlines are composed of similar rock types whereas, in the case of discordant coastlines, the rocks are of different kinds. Corrosion is also known as solution. Students will learn about the different types of erosion at the coast and will be able to explain how they create coastal landforms. (For example the east of the Dorset coast) How Geology affects the coast . The Portland limestone is resistant to erosion; then to the north there is Swanage Bay where the rock type is a softer greensand. Have all your study materials in one place. Which type of underlying geology is most likely to be formed into straight cliffs? Concordant and discordant coasts . It has the unenviable reputation as the number one place in Europe for coastal erosion, and in a stormy year waves from the North sea can remove between 7 and 10m of coastline. Headlands are formed when the sea attacks a section of coast with alternating horizontal bands of hard and soft rock. pptx, 1.58 MB. than in summer. Type # 1. Hilbre Island (Cheshire) is an example of a possible fieldwork location. It is one of the best examples in Europe of the stages of erosion on a concordant coastline. A discordant coastline occurs where bands of different rock type run perpendicular to the coast. The three major coastal processes include erosion, transportation and deposition. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (OCR). The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. Waves drag in the shallow water approaching a headland so the wave becomes high, steep and short. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. How is urban planning improving the quality of life for the urban poor in Mumbai? These will be exam question style ranging from 4, 6 and 9 mark questions. formed by the erosion of less resistant Wealden Clays. As a result, it does not travel far up it. The water. This is where waves approach the cliff; air may become trapped and compressed in joints and cracks along a cliff face. The coastal environment of the world is made up of a wide variety of landforms manifested in a spectrum of sizes and shapes ranging from gently sloping beaches to high cliffs, yet coastal landforms are best considered in two broad . This means that these waves transport beach material back into the sea, lowering the height of a beach. However, overall, access to a coastline can grant a country food supplies and economic resources that land-locked countries cannot acquire without trade. Specifically looking at the differences between concordant and discordant coastlines. True or False: Ria coastlines and Dalmatian landforms are both associated with submergent coastlines. 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. 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 . full verbatim. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. The United Nations uses coastlines to help determine international boundaries at sea. Portland limestone erodes very slowly, retreating landwards by marine undercutting and collapse to form a straight W-E coastline. This produces lines of narrow islands parallel to the coast formed by projecting sections of anticlines. What is the distance between trough and crest called? (For example the south or the Dorset coast) . Can the risks of volcanic eruptions be reduced? Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. The coast, also known as the coastline or seashore, is defined as the area where land meets the ocean, or as a line that forms the boundary between the land and the ocean or a lake. The net result is that the sediment gets smaller and smaller over time. Where the rock outcrops run parallel to the sea. There are four major different types of coastlines: Below, we will go into more detail on all of these different types of coastlines. The Dorset Coast contains a range of landforms including Durdle Door, Lulworth Cove . In contrast with emergent coastlines, submergent coastlines are coastlines submerged under water due to rising sea levels. docx, 24.88 KB. The rise in sea level can be the result of an increase in water volume or the sinking of the land's surface. GCSE Geography Coastal landscapes in the UK learning resources for adults, children, parents and teachers. Great Ocean Road, Australia. Label two landforms shown in the photograph (2) Coasts - Grade Booster. Today. Test your knowledge with gamified quizzes. e.g. What are shanty town improvement schemes? What factors affect population density and distribution? 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. Figure 3: Location of Lulworth Cove, Dorset, UK, map data: 2022 Google. Coastal. UK Sediment Cells Source: Scool. The procedure for calculating concordant and discordant pairs compares the classifications for two variables (for example, X and Y) on the same two items. Highly popular with tourists - 20,00 people on the spit at peak times (the Environment Agency concluded that between 18th August and the 12th December 2004, 487,624 visitors visited Dawlish Warren equating . Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. Erosion worsens as the waves becomes stronger. Erosion. 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 . The Earth has approximately 620,000 kilometres (390,000mi) of coastlines and they are not just a barrier between land and water; they are also important natural ecosystems. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . In addition, as waves approach a coast, they are refracted so that their energy is concentrated around headlands but reduced around bays. . Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. When a stretch of coastline is formed from different types of rock, headlands and bays can form. What is the Demographic Transition Model? This results in the formation of headlands and bays. It has a variety of other micro-features and a unique geology. May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. Little Hilbre Island (Cheshire) by Google Earth / ESRI, Imagery 2016 Getmapping plc, Map data 2016 Google. pptx, 1.58 MB. Emergent coastlines happen when either the water level has fallen or the land has risen. More recently the village was affected by the tragic floods of 1953 that claimed the lives of 76 Norfolk . (bands) of hard rock and soft rock; many bays and headlands. starter: Students examine the picture and discuss what is happening to the houses and why. They have a. gradient, typically under . The warmer climate that followed melted much of the ice. What are the different types of weathering? The Early Cretaceous, sometimes known as Lower Cretaceous, is the period stretching from 145 million years ago to 100.5 million years ago. What is migration and why do people migrate? 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). Wave Refraction and Coastal Defences. 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. False! The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. Paw Patrol Does Ryder Have A Crush On Katie, The coastal engineering for the shoreline protection involves: . Bonding between rocks either side of the plane is weaker than bonding within strata. In some cases it is estimated that there was a rise . Caves occur when waves force their way into cracks in the cliff face. A wave-cut platform is a wide, gently sloping surface found at the cliff's base and extends into the sea. 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.