concordant and discordant coastlines bbc bitesizerok aoe commanders
They are gentle, flat waves with a strong swash and a weak backwash; as a result, constructive waves build beaches. GCSE and A Level Geography Revision. Insert links to other pages or uploaded files. Approximately 40% of all people live within 100km of a coastline. Examples of discordant coastlines are Bantry Bay and Dingle Bay found in Ireland while an example of a concordant coastline is Lulworth Cove. 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 . 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 . A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. It has a variety of other micro-features and a unique geology. Concordant and discordant coastlines Caves, arches, stacks and stumps Caves, arches, stacks and stumps are all features of a weathering or erosion process at different stages. 1. Headlands and bays can form on concordant coastlines too, as has happened . of the users don't pass the Coastlines quiz! Importance of the Delta for the region. 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 . $14 million dollar house maine; Create your own unique website with customizable templates. lulworth cove concordant coastline. - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. concordant and discordant coastlines bbc bitesize - hillsboro, ohio newspaper classifieds - hillsboro, ohio newspaper classifieds - During the Devensian Glacial eustatic changes lowered sea levels by 120 m. At the start of the Holocene Interglacial (10,000 years BP) led to a rapid 100 m eustatic rise in global sea levels, as 3,000 years of ice sheets and glaciers shrank. Where do volcanoes and earthquakes happen? it gained popularity because it preserved beach resources and avoided the negative effects of hard structures.Instead, nourishment creates a "soft" (i.e., non-permanent) structure by creating a larger sand reservoir, pushing the shoreline seaward. The sea attacks a weakness in the base of the cliff. On a discordant coastline, alternating layers of hard and soft rock are perpendicular to the coast. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. Landforms in the middle course of a river. A coastline with the same type of rock along its length; fewer bays and headlands . Discordant coasts have a crenellated pattern of projecting headlands and indented bays. About 40% of the global population lives within 100km of a coastline. 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. What are active, dormant and extinct volcanoes? Fig. Best free resources for CAIE IGCSE Geography 0460 Theory including summarized notes, topical and past paper walk through videos by top students. The meanings of the terms lithology, concordant and discordant coastlines are apparent throughout the lesson. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. Elsewhere a ridge of sand forms a line of barrier islands, sand banks and mud flats parallel to the coast, e..g Friesian Islands off the North Sea coast of the Netherlands, Germany and western Denmark. Worksheets with answers provided that guide students through sequencing each landform with the emphasis on process detail and geology. This differential erosion creates headlands and bays along discordant coastlines. (For example the east of the Dorset coast) How Geology affects the coast . What factors influence the effects and response to tectonic activity? She is cooler than I am and has a life instead of enough time to make this. The image below shows how the refracted wave becomes increasingly parallel to the shoreline. Risks facing the Delta. The Portland limestone is resistant to erosion; then to the north there is Swanage Bay where the rock type is a softer greensand. ALEVEL GEOGRAPHY - COASTAL LANDSCAPES | EQ1 : the littoral zone ; offshore, nearshore and backshore. 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. More resistant Jurassic Portland Limestone forms the Peveril Point headland to the south, projecting out by 1 km. 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. The angle these bands make with the coastline makes it either a concordant or discordant coastline. A concordant coastline comprises bands of different rock types that run parallel to the shore. A joint is a fracture of rock without movement from the original position, e.g. 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. Anak Krakatau & Sunda Strait Tsunami Indonesia Case Study 2018. The outer hard provides a protective barrier to erosion of the softer rocks further inland. Named after the Dalmatia region on the Adriatic Sea. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (OCR). During the Devensian Glacial eustatic changes lowered sea levels by 120 m. At the start of the Holocene Interglacial (10,000 years BP) led to a rapid 100 m eustatic rise in global sea levels, as 3,000 years of ice sheets and glaciers shrank. Geology is the study of the types of rocks that make up the Earth's crust. In addition, as waves approach a coast, they are refracted so that their energy is concentrated around headlands but reduced around bays. As a result, it does not travel far up it. Discordant coastline . The results are deep, lengthy, thin inlets surrounded by high cliff faces. How do weather and climate affect river landscapes? When the auto-complete results are available, use the up and down arrows to review and Enter to select. These are where rock strata or structures are aligned at an angle to the coastline. Waves are the main reason for coastal change. Rock strata that are less resistant (due to the rock unit's lithology and structure) erode rapidly to form indented bays. Discordant coastlines form where geology alternates between bands of hard and soft rock (see image below). Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. Wave refraction involves waves breaking onto an irregularly shaped coastline, e.g. Historic records indicate that over 250 m of land were lost between 1600 and 1850. concordant coastlines. 1. Bays and headlands are common features along discordant coastlines. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. Use the resources provided to write notes that UK Sediment Cells Source: Scool. These coastlines may lead to the formation of either Dalmatia landforms or Haffs (also called lagoons). (bands) of hard rock and soft rock; many bays and headlands. . Large particles like boulders are pushed along the bottom of the river bed/sea by the force of the water. Coasts are shaped by the processes of erosion, transportation and deposition. Where the land rises to the sea there are several parallel strata of Jurassic rocks, including Portland limestone and the . 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. Numerous plants and animals have adapted to live along coastlines. BBC Bitesize Geoguessr Google Maps Gapminder . Let's take a look at some of the different types of coastlines and their role in our geopolitics and global climate. Discordant coastline occurs where bands of differing rock type run perpendicular to the 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 lesson covering the different types of erosion and geology along the coast. Coastlines of Submergence: i. Ria Coast: During the Ice Age a great deal of water was locked up in ice. These act as agents of erosion because their . 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 is the impact of humans on the Taiga? Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. While not every UN member has ratified UNCLAS, most nations abide by it anyway. Sustainable development in the Temperate Deciduous Woodland. This continual process can weaken the joints and cracks in the cliff, causing pieces of rock to break off. Be perfectly prepared on time with an individual plan. Which landforms result from moving or melting ice? They are also called spilling or surging waves. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. How far out to territorial waters extend from the coast (or baseline)? What is the structure of the Temperate Deciduous Woodland? A concordant coastline diminated by limestone in the map has the same type of rock along its length. Over time, waves beating against the shore will wear it down (or erode it). Fetch length along with the wind speed (or strength) determines the size of waves produced. Consequently, the water from the sea sweeps away the soft rocks leaving behind a circular land formation known as a cove. You don't have permission to comment on this page. By contrast, when the rock strata are perpendicular to the coastline, the coast is referred to as discordant. Sediment Cells. The three major coastal processes include erosion, transportation and deposition. The soft rock is made of clay and sands, and the hard rock is chalk and limestone. Coastal Geology. The processes have been operating over the last 8000 years. Historic records indicate that over 250 m of land were lost between 1600 and 1850. Great Ocean Road, Australia. Erosion worsens as the waves becomes stronger. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). Paired spits formed parallel to the coast with haff lagoon behind at the mouth of the River Vistula in Gdansk. Assessment week 2 (WB 24th February 2020) - End of unit test - Physical landscapes of the UK. In some cases it is estimated that there was a rise . True or False: Ria coastlines and Dalmatian landforms are both associated with submergent coastlines. Under 5's Football Coaching Drills, What are the effects of deforestation in the Amazon? They are more common in . Touch device users . Erosion worsens as the waves becomes stronger. Destructive waves are usually . How is urban planning improving the quality of life for the urban poor in Mumbai? A concordant coastline is an arrangement of rock strata along the coastline. Safe access points to the shoreline at several points around the edge. The four major types of coastlines are emergent coastlines; submergent coastlines; concordant coastlines; and discordant coastlines. These will be exam question style ranging from 4, 6 and 9 mark questions. over 1m. True or False: Concordant coastlines form coves. The soft rock is made of clay and sands, and the hard rock is chalk and limestone. Concordant coastlines are characterised by bands of similar types of rocks running parallel to the coast. The Earth has around 620,000 kilometres (390,000 mi) of coastline. These will be exam question style ranging from 4, 6 and 9 mark questions. Importance of the Delta for the region. Coasts Revision Booklet. Discordant These are where rock strata or structures are aligned at an angle to the coastline. Concordant coastline Uncordant coastline Variable coastline 8. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . in height. As a result of the coastal feature, the depth of water around a coast varies. Emergent coastlines can have features such as marine terraces, relict sea cliffs, sea stacks, and raised beaches. How has demand for water in the UK changed? How does geology affect the formation of river landforms? But, let's be honest, it's not brilliant. Where the rock outcrops run parallel to the sea. Identify the physical process that has shaped the pebble (1) Coasts - Grade Booster. They have a mainly circular orbit, a steep gradient. Along the coastline of Dorset, there are concordant and discordant coastlines. StudySmarter is commited to creating, free, high quality explainations, opening education to all. On discordant coastlines, differential erosion may occur, where bands of hard and soft rock outcrop at right angles to the sea. What are the physical characteristics of cold environments? coastal landforms, any of the relief features present along any coast, the result of a combination of processes, sediments, and the geology of the coast itself. This creates a cove which is a circular area of water with a relatively narrow entrance way from the sea. 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 . Why is there a trend towards agribusiness? A concordant coastline has the same type of rock. They have a. gradient, typically under . weathering. An explanation of the formation of the cove can be found on the right. How has the vegetation in the temperate deciduous forest adapted to the climate? Stacks, headlands, bays, cliffs and wave-cut platforms are all included. There are two special types of submerged coastlines: ria coasts and fjord coasts. 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. How did the temperate deciduous woodland get like this? There are rias throughout the world, including Poole Harbour in Dorset. These processes are happening constantly and usually work in conjunction to produce coastal features. When the auto-complete results are available, use the up and down arrows to review and Enter to select. Definitions. As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. The rock strata are almost vertical, and the bands of rock are quite narrow. A wave-cut notch is created by erosional processes such . There are four major types of coastlines: emergent, submergent, discordant, and concordant. Correct! Quick revise. While there are fjords all over the world, the most renowned fjord coasts are in Norway--and in fact, "fjord" is a Norwegian word. 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. Where the rock outcrops run parallel to the sea. This is called a discordant coastline. It is only when the water enters shallower areas that the water itself moves forward. Sea forces change coastal landscapes with the wind being the major source of waves. 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. 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. A famous example of a coastline. Human actions and Physical factors affecting the Delta. Concordant coastline. The process of erosion can create different landforms along the coastline. How is demand for energy changing in the UK? Awesome, well done! Geology. shale), eroding quicker than the hard, resistant rock (e.g. 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. Fjords are created when glaciers cut through valleys and are submerged. Lulworth Cove is a classic example of a 'concordant coast' - i.e. Create and find flashcards in record time. Friction with the sea bed as waves approach the shore causes the wave front to become distorted or refracted as velocity is reduced. If the direction of the classification is not the same . There are different bands of rock that have shaped this discordant coastline, namely: Fig. pg. Specification and other support materials for teachers, including delivery guides Explore. 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. Thus, a concordant coastline refers to a coastline that is made up of the same kinds of rocks and arranged parallel to the coast of the sea or ocean. Soft engineering: Beach nourishment is a type of soft approach. Type # 1. Discordant coastlines are characterised by different bands of rocks running perpendicular to the coast. A concordant coastline is an arrangement of rock strata along the coastline. How has rainforest vegetation adapted to the climate? It varies enormously from tropical looking Luskentyre in the Outer Hebrides, to the jagged coasts of Cornwall, from the low lying muddy estuarine coast of the Wash, to broad sandy beach and dunes at Bamburgh in Northumberland. At points where the Portland is weaker, erosion hasbroken through and then rapidly eroded out the softer strata laterally, creating a series of coves, e.g. chalk) May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. This happened over about 1000 years, (very rapid) and submerged coastlines. Concordant Coasts . Concordant coasts form where geological structure is such that different rock strata or folds are aligned parallel to the coastline. The concordant coastline runs from west to east along the south coast. The shape of the cove is the result of wave diffraction. Long spits of sands run parallel to the low coast, enclosing the coast. (For example the east of the Dorset coast) How Geology affects the coast . Bands of soft rock such as clay and sand are weaker therefore they can be eroded quickly. Many of these types of coastlines were actually formed toward the end of the Last Glacial Period (LGP). Learn vocabulary, terms, and more with flashcards, games, and other study tools. 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. For example, both X and Y rate item 1 higher than item 2. In the Holocene Interglacial constructive waves pushed the ride of sands and gravel landwards as sea levels rose. Lulworth Cove is a World Heritage site and part of the Heritage Coastline. The part of the wave in the deeper water moves forward faster causing the wave to bend. Did you know? It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. Sandridge formed bars across some bays and river mouths, with trapped river water forming a lagoon behind (callled haffs in Poland on the Baltic Sea). Jamaica Case Study, How can the growth of tourism reduce the development gap? The hard rock acts as a protective barrier to the softer rock behind it preventing erosion. Some concordant coasts have long, narrow islands running parallel to the coastline. Hydraulic action, attrition, abrasion, and corrosion. What is chemical and mechanical weathering? GCSE Geography Coastal landscapes in the UK learning resources for adults, children, parents and teachers. -Erode the coast-Short wave length, high and steep. Long offshore islands and coastal inlets are running parallel to the coastline. This results in the formation of headlands and bays. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. Create beautiful notes faster than ever before. It is used in geography and meteorology and is usually associated with coastal erosion.It plays a large part in longshore drift as well. An emergent coastline that "emerges" from the water--either the land has risen, or the water level has fallen. What are shanty town improvement schemes? Summer 2 Emerging economies: Asia Studying the emergence of economies in Asia known A concordant coastline is an arrangement of rock strata along the coastline. Wave diffraction happens when the narrow opening to the cove causes the waves to bend, creating an arc shape wave. Shingle ridge reconnected island of Portland Bill to land (a tombolo). What is the value of the tropical rainforest? When a wave breaks upon the shore, rocks and pebbles that are being carried collide with each other breaking them and eventually making them smaller and smoother. What is the difference between a tornado and a hurricane? 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 Dalmatian type, named from Dalmatia on the Adriatic Sea, features long offshore islands and coastal inlets that are parallel to the coastline. Coastlines are formed through the processes of erosion, transportation, and deposition. Take a look at our resources under Topics in the menu at the top of the page. The difference in rock types between discordant and concordant coastlines means that there are differences in erosion. Describe the characteristics of destructive waves (3) Coasts - Grade Booster.