Insert links to other pages or uploaded files. (bands) of hard rock and soft rock; many bays and headlands. These act as agents of erosion because their . Specifically looking at the differences between concordant and discordant coastlines. A joint is a fracture of rock without movement from the original position, e.g. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . How has rainforest vegetation adapted to the climate? 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 coastline between Durlston Head and Studland Bay in Dorset, UK, is a great example of a discordant coastline. This is where waves approach the cliff; air may become trapped and compressed in joints and cracks along a cliff face. The differing resistance to erosion leads to the formation of headlands and bays. Concordant coastlines are also called 'concordant longitudinal' or 'Pacific type' coastlines. 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 . Case Study: Coastal Management in Dawlish Warren - Blogger The water, with an endless supply of waves, whether pounding or gentle ripples, is constantly changing coastlines around the globe. What are they? It remains England's only natural World Heritage Site. . Protection of cold environments as wilderness areas. 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 ). Click To Play 1. what is the difference between concordant and discordant coast lines (4) concordant coasts are created where rock strata run parallel to the coastline in alternating bands of more resistant and less resistant rocks. As we mentioned earlier, this tends to shift the coastline further inland. What is the impact of humans on the savanna? e.g. Additionally, hotter temperatures enable extreme weather events like hurricanes to occur more frequently. Discordant. Soft rocks like mudstone and siltstone Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. This is considered sovereign national territory, the same as boundaries on land. Irrespective of whether the coastline is concordant or discordant, as wave refraction takes place around the headlands and erosion of the bay is reduced, sub-aerial weathering such as corrosion and corrasion begins to . Swam in the ocean? Emergent coastlines can have features such as marine terraces, relict sea cliffs, sea stacks, and raised beaches. 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. This creates a cove which is a circular area of water with a relatively narrow entrance way from the sea. This quiz focusses in particular on those features which are caused by coastal erosion. A concordant coastline with resistant Portland Limestone forming a protective stratum parallel to the sea. The more the waves crash onto the beach, the more sediment is washed out to sea. 1. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. The sediment acts as a tool on the cliff, chiselling away at the surface and gradually wearing it down by removing small particles. starter: Students examine the picture and discuss what is happening to the houses and why. You know your landforms of coastal erosion. shale), eroding quicker than the hard, resistant rock (e.g. Specifically looking at the differences between concordant and discordant coastlines. Emergent Coastlines. 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 . Best free resources for CAIE IGCSE Geography 0460 Theory including summarized notes, topical and past paper walk through videos by top students. The difference in rock types between discordant and concordant coastlines means that there are differences in erosion. 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. 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 . Discordant coastlines are characterised by different bands of rocks running perpendicular to the coast. The hard rock acts as a protective barrier to the softer rock behind it preventing erosion. The relatively gentle profile of the beach with a steep ridge at the top of the beach means that the backwash soaks into the sand or slowly drains away. There are different bands of rock that have shaped this discordant coastline, namely: Fig. About 40% of the global population lives within 100km of a coastline. Great Ocean Road, Australia. Spanning 243 kilometers along Australia's southeastern coast from Torquay to Allansford, the Great Ocean Road is one of the world's most scenic coastal routes. Discordant coastlines - where the rock layers alternate between harder and softer rock, which bays and headlands are more likely . Over time, waves beating against the shore will wear it down (or erode it). Along the coastline of Dorset, there are concordant and discordant coastlines. Human actions and Physical factors affecting the Delta. concordant and discordant coastlines bbc bitesize Call us (+254) 722 22 99 44 Email polucon@polucon.com Our Laboratories Nairobi & Mombasa washington sports club glover park Home Services concordant and discordant coastlines bbc bitesize Micro-Biology Services Agri - Services Instrumentation Division Environment Division Petroleum Division The Dorset Coast, located to the south of England on the English Channel, runs from Lymme Regis in the west, past Old Harry Rocks in Purbeck to Highcliffe in the east. A chalk cliff face is at the back of the cove. A concordant coastline comprises bands of different rock types that run parallel to the shore. Fun Fact: if you are interested in dinosaurs and dinosaur fossils, Durlston Bay is a renowned site for Early Cretaceous fossils. The site is self-funded and your support is really appreciated. The sea has broken through this barrier and easily eroded the clays behind it. 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. Introduction to the location of the Delta. But, let's be honest, it's not brilliant. The Earth has around 620,000 kilometres (390,000 mi) of coastline. 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. This process. What are the differences in global calorie intake and food supply? These coastlines may lead to the formation of either Dalmatia landforms or Haffs (also called lagoons). Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. What percent of the global population lives within 100km of a coastline? The gradual breakdown of rocks due to . Use the resources provided to write notes that The longer the fetch length and the faster the wind speed, the . Durdle Door - Wikipedia 3. 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. Concordant coastlines - A coastline parallel to the land structures which form the margin of an ocean basin. 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. Coastlines of Emergence. Fun Fact: Lulworth Cove is a World Heritage Site and attracts approximately 500,000 visitors a year. Their wavelength is long and a low frequency (8-10 waves per minute). 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 concordant coast may take one of two landform types. Paw Patrol Does Ryder Have A Crush On Katie, This differential erosion creates headlands and bays along discordant coastlines. Coasts are shaped by the processes of erosion, transportation and deposition. One of the topics looked at in GCSE Geography is the features that are found on a coastline. Coastal Geology. This is important in delineating who has legal, economic, and military jurisdiction in areas along the coast. The coast is very young due to recent ice ages and resulting sea level change. Create your own unique website with customizable templates. Beach material is deposited as a bridge of sediment (berm) at the top of the beach. This belongs to: _____. Either way, there is now a (bit of) coastline that is no longer submerged under water. Hydraulic action, attrition, abrasion, and corrosion. It has a discordant coastline along the east and concordant coastline along the south. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Economic losses to businesses if areas become unattractive and depopulated. In Cork in the south west of the Republic of Ireland, Formed from less resistant Carboniferous Limestone. What are active, dormant and extinct volcanoes? Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant. . Less resistant rocks are eroded more than the resistant . It has a variety of other micro-features and a unique geology. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). Bits of rock and sand that the waves have picked up are thrown against the cliff face. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. Geology. A concordant coastline can take one of the following two landform types: An example of a concordant coastline is Lulworth Cove, again, in Dorset, UK (figure 3). All maps, graphics, flags, photos and original descriptions 2023 worldatlas.com, Coastal Countries With The Shortest Coastline, Meet 12 Incredible Conservation Heroes Saving Our Wildlife From Extinction, India's Leopard God, Waghoba, Aids Wildlife Conservation In The Country, India's Bishnoi Community Has Fearlessly Protected Nature For Over 500 Years, Wildfires And Habitat Loss Are Killing Jaguars In The Amazon Rainforest, In India's Sundarbans: Where People Live Face-To-Face With Wild Tigers, Africa's "Thunderbird" Is At Risk Of Extinction. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. Bands of soft rock such as clay and sand are weaker therefore can be eroded quickly. Fig. . material at the coast and in a river. Will you pass the quiz? In some cases it is estimated that there was a rise . How is urban planning improving the quality of life for the urban poor in Rio de Janeiro? Describe the characteristics of destructive waves (3) Coasts - Grade Booster. Where are the areas of water deficit and surplus in the UK? Fetch length along with the wind speed (or strength) determines the size of waves produced. Coastlines are constantly changing, with sea levels rising or falling, and it is no different with submergent coastlines. What is the impact of humans on the temperate deciduous woodland? Where do volcanoes and earthquakes happen? Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. Gcse Geography Revision. 4 - the process of forming Lulworth Cove, Dorset, UK. We use cookies to ensure that we give you the best experience on our website. What is chemical and mechanical weathering? 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). A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. Landform change - the Dorset coastline - BBC Bitesize Coastlines of Submergence: i. Ria Coast: During the Ice Age a great deal of water was locked up in ice. What is the difference between a discordant and concordant coastline geography revision coastal landforms 264.4K views Discover short videos related to geography revision coastal landforms on TikTok. How do changes affect the balance of an ecosystem? BBC Bitesize. Create beautiful notes faster than ever before. The part of the wave in the deeper water moves forward faster causing the wave to bend. Where are polar and tundra environments located? You don't have permission to comment on this page. Beach Headland Blowhole Wave cut platform 9. Faulting is the fracturing of rock with movement from its original position. Dorset coastline - Coastal landforms - AQA - BBC Bitesize Coastlines also help us demarcate international boundaries. False! An example of a popular cove situated in a concordant coastline is the Lulworth Cove. GCSE Geography Revision : Unit 1: The Coastal Zone - Blogger Coastal Processes: Erosion, Transport and Deposition - Blogger The angle these bands make with the coastline makes it either a concordant or discordant coastline. The hard rock that forms Lulworth Cove is called the Portland limestone and chalk whereas the soft rock is clay. geography revision coastal landforms 264.4K views Discover short videos related to geography revision coastal landforms on TikTok. Beara Peninsula to the north formed from more resistant Devonian Old Red Sandstone and projects 35 km into the Atlantic Ocean. Coastlines: Geography Definition, Types & Facts | StudySmarter If they move in opposite directions - one increases while the other decreases - then the pair is discordant. Quick revise. Secondly, erosion of concordant coastlines results in the formation of coves while the erosion of discordant coastlines results in headlands and bays. coastlines. Geology. The differing resistance to erosion leads to the formation of headlands and bays. guildford school of acting auditions; gilroy google font alternative; cuisinart steamer insert; Blog Post Title February 26, 2018. The shape of the cove is the result of wave diffraction. The following are facts about destructive waves. Add in the missing words. Which landforms result from moving or melting ice? The process begins with seawater hitting on the coastline. There are four major types of coastlines: emergent, submergent, discordant, and concordant. Find this Pin and more on KS4 Changing Landscapes of the UK by Mr Haden. A case study of the coastal recession at the Nile Delta for Edexcel A Level Geography. CAIE IGCSE Geography 0460 Theory Revision Notes - ZNotes Numerous plants and animals have adapted to live along coastlines. Specifically looking at the differences between concordant and discordant coastlines. lulworth cove concordant coastline. As it does so continually, the hard rocks resist erosion resulting in the protection of the soft rocks. 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. On discordant coastlines, differential erosion may occur, where bands of hard and soft rock outcrop at right angles to the sea. How does food insecurity affect the environment? How has hot desert vegetation adapted to the climate? Landforms in the middle course of a river. Shingle ridge reconnected island of Portland Bill to land (a tombolo). Concordant coastlines tend to have fewer bays and headlands. This is called a discordant coastline. Create your own unique website with customizable templates. discordant coastlines. Because the waves are so frequent, the backwash has less time to soak into the sand. Or in other words, these types of coastlines have the same type of rock all along its length. What is the role of transnational companies in Nigeria? The low-energy wave spills into the bays as . When the following wave breaks, its swash will deposit more material without it being 'captured' by the backwash of the preceding wave. 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. Discordant and Concordant Coastlines GCSE Geography A Level - YouTube They are gentle, flat waves with a strong swash and a weak backwash; as a result, constructive waves build beaches. They have low energy and an elliptical orbit. They are more common in winterthan in the summer. The concordant coastline runs from west to east along the south coast. 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. Waves are created as wind blows over the water causing friction; this causes the water to start to move in a circular orbit. What is Nigerias location and importance? Concordant coasts form where geological structure is such that different rock strata or folds are aligned parallel to the coastline. They have a. gradient, typically under . Stop procrastinating with our study reminders. Waves interact with land through three major marine processes: erosion, transportation, and deposition. Be perfectly prepared on time with an individual plan. Coastal landforms - erosion and deposition - BBC Bitesize