concordant and discordant coastlines bbc bitesize

The UK's coastline is 31,368 km long (if you include all the main islands). The shape of the cove is the result of wave diffraction. Find out more about concordant coastlines. The three major coastal processes include erosion, transportation and deposition. How have plants adapted to cold environments? Time for Geography | Coasts Videos What is the highest point of a wave called? A concordant coastline comprises bands of different rock types that run parallel to the shore. . Not surprisingly, destructive waves destroy beaches. Soft engineering: Beach nourishment is a type of soft approach. The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. GCSE Geography Revision : Unit 1: The Coastal Zone - Blogger The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. Pinterest. Concordant Coasts . GCSE Geography Coastal landscapes in the UK learning resources for adults, children, parents and teachers. This is called a discordant coastline. What is the location and importance of Rio de Janeiro? 8. What is the structure of the tropical rainforest? Waves are the main reason for coastal change. As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. BBC Bitesize. What is the Demographic Transition Model? . Because the soft rock is exposed, it is eroded faster than the hard rock. The process of erosion can create different landforms along the coastline. lulworth cove concordant 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. 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. 4: Formation of Lulworth Cove (https://commons.wikimedia.org/wiki/File:Lulworth.png) by Red (https://en.wikipedia.org/wiki/User:Red) licensed by CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/deed.en). This continual process can weaken the joints and cracks in the cliff, causing pieces of rock to break off. A concordant coastline produced by the geological structure of folds parallel to the coast. Large particles like boulders are pushed along the bottom of the river bed/sea by the force of the water. How is demand for energy changing in the UK? 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. Dorset coastline - Coastal landforms - AQA - BBC Bitesize PDF Coasts [3]. Bays and Headlands Little Hilbre Island (Cheshire) by Google Earth / ESRI, Imagery 2016 Getmapping plc, Map data 2016 Google. 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. The Jurassic Coast begins at Orcombe . 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 differing resistance to erosion leads to the formation of headlands and bays. This differential erosion creates headlands and bays along discordant coastlines. The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. Coastlines, where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines. Subsequently there was an increase in the waters of the oceans and the sea level rose appreciably. A case study of the coastal recession at the Nile Delta for Edexcel A Level Geography. Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. Along the coastline of Dorset, there are concordant and discordant coastlines. Waves move up and down there is no horizontal movement. Sign up to highlight and take notes. Copyright2007 - 2023 Revision World Networks Ltd. Coastlines are formed through the processes of erosion, transportation, and deposition. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. Bull's Head in St Oswald's Bay. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . Discordant. A concordant coastline is where the same rock runs along the length of 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. 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. In 1982, the United Nations held a Convention on the Law of the Sea (UNCLAS), where maritime (sea) boundaries were established. It has a variety of other micro-features and a unique geology. Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. Along the coastline of Dorset, there are concordant and discordant coastlines. concordant coastlines. The hard rock that forms Lulworth Cove is called the Portland limestone and chalk whereas the soft rock is clay. Create and find flashcards in record time. This happened over about 1000 years, (very rapid) and submerged coastlines. 2B.2A Concordant and Discordant - A-LEVEL GEOGRAPHY REVISION: EDEXCEL 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. Where are Temperate Deciduous Woodlands Located? They have a mainly circular orbit, a steep gradient. 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. It's a way of having all my information in one place. Durdle Door - Wikipedia Now you can find what you're looking for wherever it lives. Shaping our coasts. Introduction to the location of the Delta. In Cork in the south west of the Republic of Ireland, Formed from less resistant Carboniferous Limestone. Where do volcanoes and earthquakes happen? A ria coast hosts multiple rias. Large particles like boulders are pushed along the bottom of the river bed/sea by the force of the water. Concordant coasts form where geological structure is such that different rock strata or folds are aligned parallel to the coastline. Coastlines, where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines. There are four major types of coastlines: emergent, submergent, discordant, and concordant. GCSE AQA 9-1 Coasts : The Formation of Headlands and Bays. The coastline determines everything. The fetch, often called the fetch length, is the length of water over which a given wind has blown. Hilbre Island (Cheshire) is an example of a possible fieldwork location. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. Ria coastlines are a type of submergent coastline, but Dalmation landforms are associated with concordant coastlines. Long offshore islands and coastal inlets are running parallel to the coastline. 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 . Bands of soft rock such as clay and sand are weaker therefore can be eroded quickly. Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant. These bands of rocks alternate between soft rock and hard rock, all eroding at different rates and in varying ways. Take a look at our resources under Topics in the menu at the top of the page. An explanation of the formation of the cove can be found on the right. 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. Upload unlimited documents and save them online. Economic losses to businesses if areas become unattractive and depopulated. The concordant coastline runs from west to east along the south coast. Gone surfing? PSYCHIC TWINS . 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 Or built a sand castle next to the waves? Coastal Erosion Landforms - Features and Formation - Blogger PBworks / Help 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. Created up folded ridges (anticlines) and down folded valleys (synclines) aligned parallel to the coast. concordant and discordant coastlines bbc bitesize - hillsboro, ohio newspaper classifieds - hillsboro, ohio newspaper classifieds - The updated BBC Bitesize website has a great video on . 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. International migration from Syria to Europe, Japan A country with a high dependent population. 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. As a result of the coastal feature, the depth of water around a coast varies. 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). As we mentioned earlier, this tends to shift the coastline further inland. Numerous plants and animals have adapted to live along coastlines. Two Earthquakes Compared Nepal and LAquila, Lombok Indonesia Earthquake 2018 Case Study, 2018 Sulawesi Indonesia Earthquake and Tsunami Case Study. - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. 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. South Dorset Coast 1. Coastlines of Emergence. The image below (figure 2) is taken at Durlston Head, which shows the bay (yellow) and the headland (red). Which of the following are major types of coastlines? This. How have animals adapted to the rainforest environment? concordant coastlines. What are active, dormant and extinct volcanoes? Touch device users . GCSE Geography | Coastline Features Caused by Coastal Erosion concordant and discordant coastlines bbc bitesize of the users don't pass the Coastlines quiz! The water. The net result is that the sediment gets smaller and smaller over time. You need to do some work on landforms of coastal erosion. The outer hard rock is Portland limestone. Erosion Sea forces change coastal landscapes with the wind being the major source of waves. Each process can produce several coastal features; however, they often work together to sculpt the coastlines. Contact the owner / RSS feed / This workspace is public, Rivers, Floods and Management (Physical Core), Drive, Dropbox, OneDrive, Gmail, and Slack. Almera in Spain: a large-scale agricultural development, Sustainable Food Supplies in an LIC Bangladesh. This process happens over thousands of years. Transportation is the movement of material from a coastline--such as sand and gravel--while deposition is the addition of material to a coastline. Correct! The Adriatic Sea itself is a concordant landform, consisting of a body of water between parallel ranges. What are the different types of weathering? Landscapes. Bands of soft rock such as clay and sand are weaker therefore they can be eroded quickly. It is where salts and acids within the seawater will gradually dissolve some types of rock found along the coast. What is a concordant coastline? Wrong! The Earth has around 620,000 kilometres (390,000 mi) of coastline. Quick revise. GCSE and A Level Geography Revision. What problems are caused by global warming? This lesson was designed initially for an interview, and worked really well for a 50 minute lesson duration. . The results are deep, lengthy, thin inlets surrounded by high cliff faces. Paymaya Annual Report, Concordant coastline. Specifically looking at the differences between concordant and discordant coastlines. Coasts can be classified in a variety of . What is migration and why do people migrate? The low-energy wave spills into the bays as . What is the impact of humans on the temperate deciduous woodland? The coast is very young due to recent ice ages and resulting sea level change. Concordant coastlines tend to have fewer bays . Or in other words, these types of coastlines have the same type of rock all along its length. A ria is a drowned river valley that leads out to the sea. Humans, too, could almost be classified as a coastal species! Emergent coastlines can have features such as marine terraces, relict sea cliffs, sea stacks, and raised beaches. Wave Refraction and Coastal Defences. Where are the areas of water deficit and surplus in the UK? These processes are happening constantly and usually work in conjunction to produce coastal features. Jamaica Case Study, How can the growth of tourism reduce the development gap? How do weather and climate affect river landscapes? 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. Lulworth Cove has occurred on a concordant coastline. How is a cold environment interdependent? When the auto-complete results are available, use the up and down arrows to review and Enter to select. Discordant These are where rock strata or structures are aligned at an angle to the coastline. Concordant Coasts Concordant coasts form where geological structure is such that different rock strata or folds are aligned parallel to the coastline. 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. The meanings of the terms lithology, concordant and discordant coastlines are apparent throughout the lesson. Fetch length along with the wind speed (or strength) determines the size of waves produced. Key Question: What are the different landforms of the Jurassic Coast? A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. concordant and discordant coastlines bbc bitesize - hillsboro, ohio newspaper classifieds - hillsboro, ohio newspaper classifieds - Which landforms result from moving or melting ice? Gcse Geography Revision Aqa Coastal Landscapes Teacher Image Paisajes Large colonies of sea lions and seals sleep and breed along coastlines, entering the seas to hunt. Reasons for Protecting Dawlish Warren: 1. 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 . https://commons.wikimedia.org/wiki/File:Lulworth.png. ALEVEL GEOGRAPHY - COASTAL LANDSCAPES | EQ1 : the littoral zone ; offshore, nearshore and backshore. What are the causes of deforestation in the Amazon? Swam in the ocean? Aqa. lulworth cove concordant coastline | Future Property Exhibiitons Students will learn about the different types of erosion at the coast and will be able to explain how they create coastal landforms. What is the impact of humans on the desert? Safe access points to the shoreline at several points around the edge. Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. What feature is left behind as the cliff retreats? Soluble materials dissolve in water and are carried along. 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. What is the structure of the Temperate Deciduous Woodland? Erosion worsens as the waves becomes stronger. concordant and discordant coastlines bbc bitesize Discordant coasts have a crenellated pattern of projecting headlands and indented bays. North of Swanage, the chalk outcrop creates the headland which includes Old Harry Rocks. Importance of the Delta for the region. Under 5's Football Coaching Drills, Waves drag in the shallow water approaching a headland so the wave becomes high, steep and short. 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. Risks facing the Delta. 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. What is a discordant coastline? The three marine processes that shape the coastline are erosion, transportation, and deposition. CAVES, ARCHES, STACKS AND STUMPS These are found on headlands where wave refraction means that erosion takes place on both sides of the headland. The Portland limestone is resistant to erosion; then to the north there is Swanage Bay where the rock type is a softer greensand. Headlands and Bays 2. They form as a ledge of bedrock left behind as the dliff retreats. There are four major different types of coastlines: Below, we will go into more detail on all of these different types of coastlines.

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