Discordant coasts are also known as Atlantic coasts, after the Cork coastline in the Republic of Ireland. Concordant coastline 2. Bays and headlands are common features along discordant coastlines. Describe the characteristics of destructive waves (3) Coasts - Grade Booster. This lesson was designed initially for an interview, and worked really well for a 50 minute lesson duration. A famous example of a coastline. The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. 1. Taking the low-water line along the coast (or, the baseline), UNCLAS put forth the following: Special exceptions apply to areas like straits, where ships can't help but pass through territorial waters. Coastal Erosion - Geography AS 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. Almera in Spain: a large-scale agricultural development, Sustainable Food Supplies in an LIC Bangladesh. If you've been to the beach, you've been to a coastline! When the auto-complete results are available, use the up and down arrows to review and Enter to select. The northern part is Eocene clay (Barton Beds), including significant deposits of Purbeck Ball Clay. discordant coastline diagram. 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. 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 . 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. 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. Contact the owner / RSS feed / This workspace is public, Rivers, Floods and Management (Physical Core), Drive, Dropbox, OneDrive, Gmail, and Slack. Emergent Coastlines. About 40% of the global population lives within 100km of a coastline. Fig. Pinterest. The Earth has around 620,000 kilometres (390,000 mi) of coastline. You know your landforms of coastal erosion. weathering. Discordant coastlines occur when bands of different types of rocks run perpendicular (at 90 degrees) to the coast. Emergent coastlines have emerged from the water; submergent coastlines have submerged below the water. One of the topics looked at in GCSE Geography is the features that are found on a coastline. . Geology is the study of the types of rocks that make up the Earth's crust. Or built a sand castle next to the waves? As it does so continually, the hard rocks resist erosion resulting in the protection of the soft rocks. Dip is the angle of inclination of titled strata. Bonding between rocks either side of the plane is weaker than bonding within strata. Set individual study goals and earn points reaching them. pptx, 1.58 MB. Lerne mit deinen Freunden und bleibe auf dem richtigen Kurs mit deinen persnlichen Lernstatistiken. The difference in rock types between discordant and concordant coastlines means that there are differences in erosion. Corrosion is also known as solution. The coast is the border between the land and the sea. A concordant coastline with resistant Portland Limestone forming a protective stratum parallel to the sea. concordant coastlines. Coasts can be classified in a variety of . There are 3 main groups of coastal features which result from coastal erosion: 1. The coastline between Durlston Head and Studland Bay in Dorset, UK, is a great example of a discordant coastline. 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. The meanings of the terms lithology, concordant and discordant coastlines are apparent throughout the lesson. What is a discordant coastline? Nie wieder prokastinieren mit unseren Lernerinnerungen. (BBC, 2006). Where are Temperate Deciduous Woodlands Located? False! The United Nations uses coastlines to help determine international boundaries at sea. A coastline is anywhere where the land meets the water. Historic records indicate that over 250 m of land were lost between 1600 and 1850. This differential erosion creates headlands and bays along discordant coastlines. 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. 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. Stacks, headlands, bays, cliffs and wave-cut platforms are all included. The Early Cretaceous, sometimes known as Lower Cretaceous, is the period stretching from 145 million years ago to 100.5 million years ago. Coasts Revision Booklet. (8) Coasts - Grade Booster Geog' Clips Large particles like boulders are pushed along the bottom of the river bed/sea by the force of the water. 1. 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. 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. Many of our major cities have developed along oceanic coasts as well: think of New York City, Tokyo, Istanbul, Dubai, Hong Kong, and Copenhagen, just to name a few! The processes have been operating over the last 8000 years. 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. The part of the wave in the deeper water moves forward faster causing the wave to bend. May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. How is demand for energy changing in the UK? The Holderness coastline - Coolgeography.co.uk What are Mumbais social and economic opportunities? This produces lines of narrow islands parallel to the coast formed by projecting sections of anticlines. Why is the Human Development Index important? Risks facing the Delta. Numerous plants and animals have adapted to live along coastlines. Water quality and pollution management in the UK. starter: Students examine the picture and discuss what is happening to the houses and why. A case study of a sparsely populated area Himalayan Mountains, A case study of a densely populated area Greater London. caused by the shrinkage of igneous rock as it cools. This happened over about 1000 years, (very rapid) and submerged coastlines. . 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. . South Dorset Coast 1. Coastlines: Geography Definition, Types & Facts | StudySmarter What is the location and importance of Mumbai? An example of a popular cove situated in a concordant coastline is the 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 . She is cooler than I am and has a life instead of enough time to make this. Headlands and Bays 2. A concordant coastline diminated by limestone in the map has the same type of rock along its length. 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. Its 100% free. What is the difference between a discordant and concordant coastline Waves are created as wind blows over the water causing friction; this causes the water to start to move in a circular orbit. Where once there was a simple river with well-defined banks, now there is a sprawling river that has submerged most of the terrain around it. Bays and headlands are common features along discordant coastlines. How has the vegetation in the temperate deciduous forest adapted to the climate? On a discordant coastline, alternating layers of hard and soft rock are perpendicular to the coast. The water, with an endless supply of waves, whether pounding or gentle ripples, is constantly changing coastlines around the globe. The arch has formed on a concordant coastline where bands of rock run parallel to the shoreline. What is a concordant coastline? - Internet Geography BBC Bitesize Geoguessr Google Maps Gapminder . Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Earn points, unlock badges and level up while studying. 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). 4 - the process of forming Lulworth Cove, Dorset, UK. Landscapes. PBworks / Help This is because access to the coast offers the opportunity for harvesting marine resources, especially fish, as well as the ability to conduct international trade via the sea. concordant and discordant coastlines bbc bitesize Coastal Erosion. Coasts are shaped by the processes of erosion, transportation and deposition. Swanage is located in South England and features both a discordant and concordant coastline (see diagram below) Due to this contrasting geology a number of differences can be outlined. The Adriatic Sea itself is a concordant landform, consisting of a body of water between parallel ranges. Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. 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. Coastlines of Submergence: i. Ria Coast: During the Ice Age a great deal of water was locked up in ice. How is a cold environment interdependent? 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 differing resistance to erosion leads to the formation of headlands and bays. StudySmarter is commited to creating, free, high quality explainations, opening education to all. As our Earth warms, glaciers melt, causing the sea level to rise. What is the location and importance of Rio de Janeiro? They have a mainly circular orbit, a .. gradient. Figure 5: Lulworth Cove in Dorset, UK, map data: 2022 Google. Explain the process of longshore drift (3) Coasts - Grade Booster. A concordant coastline is an arrangement of rock strata along the coastline. Coastal landforms - erosion and deposition - BBC Bitesize They have a mainly circular orbit, a steep gradient. Erosion worsens as the waves becomes stronger. Correct! Discordant coasts have a crenellated pattern of projecting headlands and indented bays. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. BBC Bitesize. Economic losses to businesses if areas become unattractive and depopulated. What is Nigerias location and importance? Soluble materials dissolve in water and are carried along. Concordant coastlines tend to have fewer bays . There are four major types of coastlines: emergent, submergent, discordant, and concordant. The relative resistance of rock types influences the degree of indentation of bays. The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. 8. The difference in rock types between discordant and concordant coastlines means that there are differences in erosion. The meanings of the terms lithology, concordant and discordant coastlines are apparent throughout the lesson. Create flashcards in notes completely automatically. The differing resistance to erosion leads to the formation of headlands and bays. What problems are caused by global warming? By contrast, when the rock strata are perpendicular to the coastline, the coast is referred to as discordant. A submergent coastline is a coastline that has submerged below the water. 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. As a wave undercuts a cliff the cliff retreats. These are found in Haffs, also known as lagoons, on the Baltic Sea's southern shores. The processes have been operating over the last 8000 years. Teacher. Many of these types of coastlines were actually formed toward the end of the Last Glacial Period (LGP). Discordant coastlines form where geology alternates between bands of hard and soft rock (see image below). Assessment week 2 (WB 24th February 2020) - End of unit test - Physical landscapes of the UK. Barton-on-Sea, in particular, is a well-known place to study coast erosion and sea-defence work, some successful, some partly successful, and some failed. 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. Caves occur when waves force their way into cracks in the cliff face. The low-energy wave spills into the bays as . Sea turtles return to coasts to lay their eggs, and birds like gulls and pelicans do much of their hunting near the shore. This belongs to: _____. 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. Concordant coastlines tend to have fewer bays and headlands. GCSE AQA 9-1 Coasts : The Formation of Headlands and Bays. The outer hard provides a protective barrier to erosion of the softer rocks further inland. Extended writing tasks 2 a half term. Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. concordant and discordant coastlines bbc bitesize. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. These act as agents of erosion because their . 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. . Erosional landforms - Coastal landforms - AQA - GCSE Geography Revision - AQA - BBC Bitesize. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . What are they? Headlands and bays can form on concordant coastlines too, as has happened . Discordant coastlines - where the rock layers alternate between harder and softer rock, which bays and headlands are more likely . Why is there a trend towards agribusiness? Soft engineering: Beach nourishment is a type of soft approach. The coastal environment of the world is made up of a wide variety of landforms manifested in a spectrum of sizes and shapes ranging from gently sloping beaches to high cliffs, yet coastal landforms are best considered in two broad . Concordant coastlines are characterised by bands of similar types of rocks running parallel to the coast. The more the waves crash onto the beach, the more sediment is washed out to sea. Published by at February 16, 2022. Aqa. They are gentle, flat waves with a strong swash and a weak backwash; as a result, constructive waves build beaches. Beach material is deposited as a bridge of sediment (berm) at the top of the beach. The coast is very young due to recent ice ages and resulting sea level change. Caves occur when waves force their way into cracks in the cliff face. The UK's coastline is 31,368 km long (if you include all the main islands). How do weather and climate affect river landscapes? https://commons.wikimedia.org/wiki/File:Lulworth.png. Okay, now we know what coastlines are. What are the three processes that shape the coastline? In the Holocene Interglacial constructive waves pushed the ride of sands and gravel landwards as sea levels rose.
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