concordant and discordant coastlines bbc bitesize10 marca 2023
The image below (figure 2) is taken at Durlston Head, which shows the bay (yellow) and the headland (red). This quiz focusses in particular on those features which are caused by coastal erosion. Weathering and mass movement in river valleys. What are the different types of weathering? BBC Bitesize. (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. Landscapes. There are different bands of rock that have shaped this discordant coastline, namely: Fig. Bull's Head in St Oswald's Bay. An explanation of the formation of the cove can be found on the right. Historic records indicate that over 250 m of land were lost between 1600 and 1850. How are Nigerias trading and political relationships changing? Geology is the study of the types of rocks that make up the Earth's crust. A concordant coastline is where the same rock runs along the length of the coast. Discordant coastlines form where geology alternates between bands of hard and soft rock (see image below). An example of a popular cove situated in a concordant coastline is the Lulworth Cove. 2: Durlston headland and bay (https://en.wikipedia.org/wiki/File:Durlston_bay_from_durlston_castle.jpg) by Jim Champion (https://commons.wikimedia.org/wiki/User:JimChampion) licensed by CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/deed.en), Fig. Over time, waves beating against the shore will wear it down (or erode it). They have low energy and an elliptical orbit. 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. 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. The sea attacks a weakness in the base of the cliff. Waves move up and down there is no horizontal movement. They have a mainly circular orbit, a steep gradient. 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 ). Discordant and Concordant Coastlines GCSE Geography A Level Revision Coasts - YouTube 2:20 Discordant and Concordant Coastlines GCSE Geography A Level Revision Coasts TheGeographyGuy 1.66K. Gcse Geography Revision Aqa Coastal Landscapes Teacher Image Paisajes concordant coastlines. The sea attacks a weakness in the base of the cliff. Coasts Revision Booklet. These are found in Haffs, also known as lagoons, on the Baltic Sea's southern shores. Soluble materials dissolve in water and are carried along. Pinterest. The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. What are the effects of economic development in Nigeria on quality of life? Created up folded ridges (anticlines) and down folded valleys (synclines) aligned parallel to the coast. Hydraulic action, attrition, abrasion, and corrosion. Additionally, hotter temperatures enable extreme weather events like hurricanes to occur more frequently. Waves are created as wind blows over the water causing friction; this causes the water to start to move in a circular orbit. Jamaica Case Study, How can the growth of tourism reduce the development gap? Everything you need for your studies in one place. A concordant coastline has the same type of rock. Upload unlimited documents and save them online. a headland separated by two bays. What problems are caused by global warming? 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 . If you have, then you've been to a coast and walked along a coastline. True or False: As sea levels rise, coastlines are likely to expand. Gone surfing? Practice Questions: Slideshow 2773107 by chanel Coasts Revision Booklet. This differential erosion creates headlands and bays along discordant coastlines. This means that these waves transport beach material back into the sea, lowering the height of a beach. The updated BBC Bitesize website has a great video on . A concordant coastline comprises bands of different rock types that run parallel to the shore. Best free resources for CAIE IGCSE Geography 0460 Theory including summarized notes, topical and past paper walk through videos by top students. . For example, this could be a joint in chalk. . Concordant coastlines are characterised by bands of similar types of rocks running parallel to the coast. Rocks outcrop at right angles to the sea, forming headlands and bays. Use the resources provided to write notes that Wave Refraction and Coastal Defences. Whenever you search in PBworks, Dokkio Sidebar (from the makers of PBworks) will run the same search in your Drive, Dropbox, OneDrive, Gmail, and Slack. There are four major different types of coastlines: Below, we will go into more detail on all of these different types of coastlines. The warmer climate that followed melted much of the ice. True or False: Concordant coastlines form coves. Some concordant coasts have long, narrow islands running parallel to the coastline. concordant coastlines. What is the impact of humans on the savanna? Share 5.1K views 2 years ago This video explains the difference between a concordant and discordant coastline, including the coastal landforms that occur along each and the geological. As stated earlier, coves are formed out of concordant coastlines. This belongs to: _____. caused by the shrinkage of igneous rock as it cools. (For example the east of the Dorset coast) How Geology affects the coast . Correct! Lulworth Cove has occurred on a concordant coastline. 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. 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. Originally a band of resistant Portland . How is urban planning improving the quality of life for the urban poor in Rio de Janeiro? Assessment week 2 (WB 24th February 2020) - End of unit test - Physical landscapes of the UK. Caves, arches, stacks and stumps Weathering and erosion can create caves, arches, stacks and stumps along a headland. Because the waves are so frequent, the backwash has less time to soak into the sand. Concordant coasts form where geological structure is such that different rock strata or folds are aligned parallel to the coastline. Lulworth Cove is a World Heritage site and part of the Heritage Coastline. Did you know? This happened over about 1000 years, (very rapid) and submerged coastlines. Concordant. Discordant These are where rock strata or structures are aligned at an angle to the coastline. GCSE Geography Coastal landscapes in the UK learning resources for adults, children, parents and teachers. Lulworth Cove is a World Heritage site and part of the Heritage Coastline. Extreme weather in the UK Beast from the East, Extreme Weather in the UK Summer Heatwave 2018. At the mouth of the River Oder near Szczecin, Stettiner Haff formed where sand ridge connected islands, leaving river to emerge through three narrow outlets. BBC Bitesize Geoguessr Google Maps Gapminder . Specifically looking at the differences between concordant and discordant coastlines. Two Earthquakes Compared Nepal and LAquila, Lombok Indonesia Earthquake 2018 Case Study, 2018 Sulawesi Indonesia Earthquake and Tsunami Case Study. Which of the following are major types of coastlines? The meanings of the terms lithology, concordant and discordant coastlines are apparent throughout the lesson. What is the impact of humans on the desert? (bands) of hard rock and soft rock; many bays and headlands. Large colonies of sea lions and seals sleep and breed along coastlines, entering the seas to hunt. What is the role of transnational companies in Nigeria? GCSE 9-1 Coasts: Erosional Landforms Bundle. The hard rock shields the soft rock from erosion. 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. 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 . Geological structure is the characteristics and arrangement of rock units. Coastlines of Submergence: i. Ria Coast: During the Ice Age a great deal of water was locked up in ice. They form as a ledge of bedrock left behind as the dliff retreats. chalk) May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. The image below shows the narrow opening created in the limestone and the cove that formed afterwards. These are coastlines where the bands of rock run perpendicular to the coastline meaning . 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. Concordant and discordant coasts . These will be exam question style ranging from 4, 6 and 9 mark questions. discordant coastlines. Concordant coastline. How has the vegetation in the temperate deciduous forest adapted to the climate? Unique access to harvest all resources within the EEZ, including fishing and fracking. Less resistant rocks are eroded more than the resistant . 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 ). Worksheets with answers provided that guide students through sequencing each landform with the emphasis on process detail and geology. Economic losses to businesses if areas become unattractive and depopulated. Limited law enforcement jurisdiction to prevent crimes related to customs or trafficking. 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. Case studies Dorset Jurassic coast and Holderness. As the wave breaks, it carries material up the beach in its swash. The four major types of coastlines are emergent coastlines; submergent coastlines; concordant coastlines; and discordant coastlines. A coastline with the same type of rock along its length; fewer bays and headlands . Many of these types of coastlines were actually formed toward the end of the Last Glacial Period (LGP). The site is self-funded and your support is really appreciated. Sediment Cells. 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). Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. Importance of the Delta for the region. Anak Krakatau & Sunda Strait Tsunami Indonesia Case Study 2018. They are, for the time being, out of reach of the current wave action and will therefore not be affected by them. The low-energy wave spills into the bays as . It can be reached at low tide by walking from the mainland. As the wave approaches a coast, its progress is modified due to friction from the seabed, halting the motion of waves. The high degree of indentation of Bantry Bay is not solely influenced by the relative resistance of rock types, but also the orientation of strata SW-NE means that they directly face high energy Atlantic waves driven by the prevailing SW wind. However, structure is not the only factor influencing the indentation of Swanage Bay, since Swanage bay faces east, and is sheltered from the prevailing south westerly wind and highest energy waves. (bands) of hard rock and soft rock; many bays and headlands. Pebble sized particles are bounced along the river bed/sea by the force of the water. However, overall, access to a coastline can grant a country food supplies and economic resources that land-locked countries cannot acquire without trade. This process happens over thousands of years. Which of the following is NOT a major process through which waves shape the coast? What are shanty town improvement schemes? Concordant coastline Uncordant coastline Variable coastline 8. Along the coastline of Dorset, there are concordant and discordant coastlines. Specifically looking at the differences between concordant and discordant coastlines. Soft engineering: Beach nourishment is a type of soft approach. 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. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. The extent to which the shape of a beach or coast is created or altered depends mainly on the action of waves upon it. dxterity stock symbol / nice houses for sale near amsterdam / nice houses for sale near amsterdam These are where rock strata or structures are aligned at an angle to the coastline. Their wavelength is .and a.. frequency (8-10 waves per minute). The hard rock acts as a protective barrier to the softer rock behind it preventing erosion. A submergent coastline is a coastline that has submerged below the water. The three marine processes that shape the coastline are erosion, transportation, and deposition. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). Emergent coastlines have emerged from the water; submergent coastlines have submerged below the water. As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. weathering. As a result of the coastal feature, the depth of water around a coast varies. Students will learn about different types of rock and will consider how resistance can affect rates of erosion. This belongs to: _____. docx, 24.88 KB. Subsequently there was an increase in the waters of the oceans and the sea level rose appreciably. Extended writing tasks 2 a half term. As the wave approaches the coast, it gains height and drops onto a steep beach. By contrast, when the rock strata are perpendicular to the coastline, the coast is referred to as discordant. 3. 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. For example, this could be a joint in chalk. True or False: In 1982, the United Nations Convention on the Law of the Sea created international maritime boundaries based on relative naval power. While discordant coastlines have bands of different rock types running perpendicular to the coast, concordant coastlines have bands of similar rock types running parallel (alongside) to the coast. What are the differences in global calorie intake and food supply? Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. Create your own unique website with customizable templates. 3 Revision Guides Business Studies: - Revise Edexcel GCSE Business, Units 1, 3 & 5 Revision Guide Revise Edexcel GCSE Business, Units 1, 3 & 5 Revision workbook Computing: - Students have already been provided with a revision guide and question books. What is the Demographic Transition Model? The differing resistance to erosion leads to the formation of headlands and bays. The water. This is where waves approach the cliff; air may become trapped and compressed in joints and cracks along a cliff face. North of Swanage, the chalk outcrop creates the headland which includes Old Harry Rocks. The differing resistance to erosion leads to the formation of headlands and bays. The northern part is Eocene clay (Barton Beds), including significant deposits of Purbeck Ball Clay. What are the physical characteristics of cold environments? UNCLAS implemented a universal system for maritime boundaries based on baselines, which are measured from the low-water line at the coast. A concordant coastline is where the same rock runs along the length of the coast. Long offshore islands and coastal inlets are running parallel to the coastline. These bands of rocks alternate between soft rock and hard rock, all eroding at different rates and in varying ways. Emergent coastlines can pop up after tectonic activity, where the land is being pushed up by the tectonic plates. Describe the characteristics of destructive waves (3) Coasts - Grade Booster. False! Touch device users . chalk) . Sometimes the outer hard rock is punctured allowing the sea to erode the softer rocks behind. A concordant coastline is an arrangement of rock strata along the coastline. They are also called spilling or surging waves. Explore. 1. The Portland limestone is resistant to erosion; then to the north there is Swanage Bay where the rock type is a softer greensand. Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. They are more common in winterthan in the summer. Will you pass the quiz? StudySmarter is commited to creating, free, high quality explainations, opening education to all. 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. Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines.
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