concordant and discordant coastlines bbc bitesizeconcordant and discordant coastlines bbc bitesize
shale), eroding quicker than the hard, resistant rock (e.g. What are the economic and environmental issues of energy production? The fetch, often called the fetch length, is the length of water over which a given wind has blown. Coastlines are constantly changing, with sea levels rising or falling, and it is no different with submergent coastlines. Introduction to the location of the Delta. Headlands and bays Cliffs along the coastline do not erode at the same pace. Bays and headlands are common features along discordant coastlines. What problems are caused by global warming? An example of a popular cove situated in a concordant coastline is the Lulworth Cove. Create flashcards in notes completely automatically. Limestone Case Study Malham, The Yorkshire Dales. 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. guildford school of acting auditions; gilroy google font alternative; cuisinart steamer insert; Blog Post Title February 26, 2018. Case studies Dorset Jurassic coast and Holderness. 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 . 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. starter: Students examine the picture and discuss what is happening to the houses and why. pg. Emergent coastlines can pop up after tectonic activity, where the land is being pushed up by the tectonic plates. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. They are gentle, flat waves with a strong swash and a weak backwash; as a result, constructive waves build beaches. In some cases it is estimated that there was a rise . These processes are happening constantly and usually work in conjunction to produce coastal features. Correct! Shaping our coasts. These waves are also known as plunging waves. Fun Fact: Lulworth Cove is a World Heritage Site and attracts approximately 500,000 visitors a year. The differing resistance to erosion leads to the formation of headlands and bays. It has a discordant coastline along the east and concordant coastline along the south. 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. Joints,Dips and Faults in terms of rocks. 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. 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, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Pinterest (Opens in new window), Click to email a link to a friend (Opens in new window), Click to share on WhatsApp (Opens in new window), Internet Geography Plus Terms and Conditions. concordant coastlines. What are the air masses that affect the UK? If you have, then you've been to a coast and walked along a coastline. (BBC, 2006). Sediment Cells. Deformation is the degree of tilting of folding ofrock. The swash of a destructive wave is much weaker than its backwash. 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. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. - Headlands form along discordant coastlines in which bands of soft and hard rock outcrop at right angles to the coastline. Which of the following are associated with discordant coastlines? Paw Patrol Does Ryder Have A Crush On Katie, rhodes funeral home karnes city, texas obituaries, luxury homes for sale in oakville ontario. Coastlines are formed through the processes of erosion, transportation, and deposition. BBC Bitesize. How do changes affect the balance of an ecosystem? What are the causes of deforestation in the Amazon? A concordant coastline has the same type of rock along its. These will be exam question style ranging from 4, 6 and 9 mark . The outer layers of the coastline, those directly on the waterline, are Portland and Purbeck limestone, and they have been eroded away over many years. UNCLAS implemented a universal system for maritime boundaries based on baselines, which are measured from the low-water line at the coast. This happened over about 1000 years, (very rapid) and submerged coastlines. By contrast, when the rock strata are perpendicular to the coastline, the coast is referred to as discordant. However, when the hard rocks punctured by either faults or ridges, inland soft rocks yield to erosion. Hilbre Island (Cheshire) is an example of a possible fieldwork location. The sea attacks a weakness in the base of the cliff. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). There are four major different types of coastlines: Below, we will go into more detail on all of these different types of coastlines. The significance of food, water and energy, An overview of global inequalities in the supply and consumption of resources, Carbon footprints, food miles and moves towards local sourcing of food. Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. These are coastlines where the bands of rock run perpendicular to the coastline meaning . A case study of the coastal recession at the Nile Delta for Edexcel A Level Geography. 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. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. This cove is located near the village of West Lulworth and is one of the best examples of a concordant coastline. These act as agents of erosion because their . Waves move up and down there is no horizontal movement. There are different bands of rock that have shaped this discordant coastline, namely: Fig. Their wavelength is .and a.. frequency (8-10 waves per minute). Awesome, well done! Bands of soft rock such as clay and sand are weaker therefore they can be eroded quickly. In addition, as waves approach a coast, they are refracted so that their energy is concentrated around headlands but reduced around bays. A joint is a fracture of rock without movement from the original position, e.g. A fjord coast hosts multiple fjords. You don't have permission to comment on this page. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. What are shanty town improvement schemes? Hydraulic action, attrition, abrasion, and corrosion. Over time the sea can wash away an entire coastline, forcing back human uses of that land (such as settlements or farms) and letting the sea . Originally a band of resistant Portland . When a stretch of coastline is formed from different types of rock, headlands and bays can form. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. As a wave undercuts a cliff the cliff retreats. Erosion Sea forces change coastal landscapes with the wind being the major source of waves. A concordant coastline is an arrangement of rock strata along the coastline. material at the coast and in a river. 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. Rocks outcrop at right angles to the sea, forming headlands and bays. How has urbanisation helped Nigeria to develop? More resistant strata erode only slowly, and are left projecting into the sea as headlands. Sea turtles return to coasts to lay their eggs, and birds like gulls and pelicans do much of their hunting near the shore. These bands of rocks alternate between soft rock and hard rock, all eroding at different rates and in varying ways. What is the location and importance of Rio de Janeiro? A wave-cut notch is created by erosional processes such . What are Mumbais social and economic opportunities? Using examples examine the differences between discordant and concordant coastlines (with diagrams) (8) Coasts - Grade Booster Using examples, examine the physical factors that can influence how fast a coastline can erode (8) Coasts - Grade Booster Examine how soft engineering could prevent coastal erosion. $14 million dollar house maine; Headlands and bays can form on concordant coastlines too, as has happened . Fjords are created when glaciers cut through valleys and are submerged. the same rock types are parallel to the coastline, with alternating bands of different rock types running parallel to the coastline behind it (as opposed to a 'discordant coastline' where the rock types are perpendicular to the coastline, presenting differing rock types to the sea along the coastline). Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. Where the rock outcrops run parallel to the sea. Watch popular content from the following creators: ambs(@aambersaunders), Revision(@lastminstudies), - (@alevelhelp.32), GCSE revision 2022(@revision.2022), BBC Bitesize(@bbcbitesize), Revision(@lastminstudies), Revision . Tip: To turn text into a link, highlight the text, then click on a page or file from the list above. Shingle ridge reconnected island of Portland Bill to land (a tombolo). This lesson was designed initially for an interview, and worked really well for a 50 minute lesson duration. Copyright2007 - 2023 Revision World Networks Ltd. 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. Will you pass the quiz? Best free resources for CAIE IGCSE Geography 0460 Theory including summarized notes, topical and past paper walk through videos by top students. Contact the owner / RSS feed / This workspace is public, Rivers, Floods and Management (Physical Core), Drive, Dropbox, OneDrive, Gmail, and Slack. The more the waves crash onto the beach, the more sediment is washed out to sea. It has a variety of other micro-features and a unique geology. The sea has broken through this barrier and easily eroded the clays behind it. . 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 . Specifically looking at the differences between concordant and discordant coastlines. An explanation of the formation of the cove can be found on the right. Consequently headlands and bays form along discordant coastlines and whilst headlands remain exposed to the force of the waves, bays are sheltered. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . Concordant coastlines tend to have fewer bays . Why are deserts located along the tropics? Which type of underlying geology is most likely to be formed into straight cliffs? What factors affect population density and distribution? Named after the Dalmatia region on the Adriatic Sea. Portland limestone erodes very slowly, retreating landwards by marine undercutting and collapse to form a straight W-E coastline. What is the impact of humans on the Taiga? Discordant coasts forms where geological structure is such that different rock strata of folds are aligned at an angle to the coastline. A concordant coastline is where the same rock runs along the length of the coast. Stop procrastinating with our smart planner features. A concordant coastline diminated by limestone in the map has the same type of rock along its length. Correct! The procedure for calculating concordant and discordant pairs compares the classifications for two variables (for example, X and Y) on the same two items. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). Lulworth Cove is a World Heritage site and part of the Heritage Coastline. Insert links to other pages or uploaded files. Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. The hard rock shields the soft rock from erosion. What percent of the global population lives within 100km of a coastline? A concordant coastline is an arrangement of rock strata along the coastline. Tectonic forces produced by the collision of African and Eurasian plates compressed Carboniferous Limestone during the Alpine Orogeny 50 million years ago. Coasts Revision Booklet. Concordant. Select all that apply. The water. Little Hilbre Island (Cheshire) by Google Earth / ESRI, Imagery 2016 Getmapping plc, Map data 2016 Google. Both concordant and discordant. When a stretch of coastline is formed from different types of rock, headlands and bays can form. Concordant coastlines tend to have fewer bays and headlands. concordant coastlines. 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. discordant coastlines. Concordant and discordant coasts . Beach Headland Blowhole Wave cut platform 9. Emergent coastlines have emerged from the water; submergent coastlines have submerged below the water. The Adriatic Sea itself is a concordant landform, consisting of a body of water between parallel ranges. However, overall, access to a coastline can grant a country food supplies and economic resources that land-locked countries cannot acquire without trade. Coastlines of Submergence: i. Ria Coast: During the Ice Age a great deal of water was locked up in ice. What is the role of transnational companies in Nigeria? The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. As we mentioned earlier, this tends to shift the coastline further inland. Sometimes the outer hard rock is punctured allowing the sea to erode the softer rocks behind. Introduction to the location of the Delta. How is urban planning improving the quality of life for the urban poor in Mumbai? They are more common in . Many of the major cities built directly along coastlines, such as New York City and Tokyo, will be forced to develop solutions that counter rising sea levels or else abandon waterfront infrastructures and construct further inland. These coves are formed by waves breaking through an outer layer of hard rock, such as limestone, and then, over time, the waves sweep away the soft rock further inland, like sand and clay, creating a cove. Explore. This process happens over thousands of years. This is important in delineating who has legal, economic, and military jurisdiction in areas along the coast.
Is Future A Producer Of Euphoria,
How Many Lions Were In The Den With Daniel,
St Louis County Obituaries Last 3 Days,
Klay Thompson 86 Point Game,
Translate My Name To Demon,
Articles C
