Sustainable development in the Temperate Deciduous Woodland. Concordant Coasts . 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 soft rock is made of clay and sands, and the hard rock is chalk and limestone. Discordant. As a result of the coastal feature, the depth of water around a coast varies. Okay, now we know what coastlines are. 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. Introduction to the location of the Delta. Why are deserts located along the tropics? 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. Key Question: What are the different landforms of the Jurassic Coast? What is a discordant coastline? 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. A coastline with the same type of rock along its length; fewer bays and headlands . 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 coastlines occur when bands of different types of rocks run perpendicular (at 90 degrees) to the coast. This happened over about 1000 years, (very rapid) and submerged coastlines. The outer hard provides a protective barrier to erosion of the softer rocks further inland. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. More erosion at the present (2016-2017) is occurring further east, down drift, in the Barton Golf Course and Hordle Cliff area, as a result of the Barton Sea Defences (the so-called "Terminal . Part of the Dorset coastline in the UK running north from the Portland limestone of Durlston Head is a clear example of a discordant coastline. Teacher. This results in the formation of headlands and bays. starter: Students examine the picture and discuss what is happening to the houses and why. This quiz focusses in particular on those features which are caused by coastal erosion. Sign up to highlight and take notes. Concordant coastlines tend to have fewer bays and headlands. These waves are also known as plunging waves. How have animals adapted to cold environments? It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. When the following wave breaks, its swash will deposit more material without it being 'captured' by the backwash of the preceding wave. As our Earth warms, glaciers melt, causing the sea level to rise. The three major coastal processes include erosion, transportation and deposition. Concordant. They are most common where .. is short. Changing rates of rainforest deforestation. In contrast with emergent coastlines, submergent coastlines are coastlines submerged under water due to rising sea levels. Both concordant and discordant. More resistant strata erode only slowly, and are left projecting into the sea as headlands. During a storm, the most common waves are destructive. 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 three major coastal processes include erosion, transportation and deposition. An emergent coastline that "emerges" from the water--either the land has risen, or the water level has fallen. Soluble materials dissolve in water and are carried along. 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. 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. Its 100% free. Discordant coasts have a crenellated pattern of projecting headlands and indented bays. If you've been to the beach, you've probably seen some of them: mangrove trees and hermit crabs, penguins and sea oats- organisms that can neither fully survive way out at sea, nor venture too far inland. 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. Which of the following is NOT typically found in a coastal ecosystem? The amount of energy is dependent on the wind speed, the length of time the . How can the impacts of climate change be managed? Why is the weather of the UK so changeable? The coast is very young due to recent ice ages and resulting sea level change. 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. Discordant coastline . The geology of the Isle is complex. [5] The arch has formed on a concordant coastline where bands of rock run parallel to the shoreline. Many emergent coastlines have existed since the glacial phases of the Pleistocene Epoch, which lasted from about 2,580,000 and 11,700 years ago because the sea levels were much lower than they are today. As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. A concordant coastline is an arrangement of rock strata along the coastline. material at the coast and in a river. The gradual breakdown of rocks due to . 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. over 1m. The coast is the border between the land and the sea. The concordant coastline runs from west to east along the south coast. In addition, as waves approach a coast, they are refracted so that their energy is concentrated around headlands but reduced around bays. Selenium Deficiency In Baby Goats, What is the location and importance of Rio de Janeiro? How is urban planning improving the quality of life for the urban poor in Rio de Janeiro? Created up folded ridges (anticlines) and down folded valleys (synclines) aligned parallel to the coast. What are the physical characteristics of cold environments? 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. As these systems develop at sea, communities along coastlines are the most vulnerable to any potential destruction. 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. These Dalmatian types normally occur . Ways destructive waves destroy the coastline . Create flashcards in notes completely automatically. After the waves broke through, creating an opening, the softer clay after the limestone started to erode away as well, creating a cove (figure 4). The three marine processes that shape the coastline are erosion, transportation, and deposition. Tunisia Case Study. 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 coasts have a crenellated pattern of projecting headlands and indented bays. 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. Erosion. 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). . A famous example of a coastline. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. GCSE Geography Coastal landscapes in the UK learning resources for adults, children, parents and teachers. What factors influence the effects and response to tectonic activity? It has a variety of other micro-features and a unique geology. Where the rock outcrops run parallel to the sea. Concordant coastlines tend to have fewer bays and headlands. How does flooding affect humans and the environment? There are two special types of submerged coastlines: ria coasts and fjord coasts. Concordant coastline Uncordant coastline Variable coastline 8. Gcse Geography Revision. A concordant coastline has the same type. 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. When a stretch of coastline is formed from different types of rock, headlands and bays can form. A concordant coastline has the same type of rock. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . Waves drag in the shallow water approaching a headland so the wave becomes high, steep and short. -Erode the coast-Short wave length, high and steep. Or in other words, these types of coastlines have the same type of rock all along its length. . Case studies Dorset Jurassic coast and Holderness Extended writing tasks 2 a half term. Concordant coastlines tend to have fewer bays . As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. They have a low gradient, typically under one meter in height. Use the images below to explore related quizzes. How have plants adapted to cold environments? Coasts Revision Booklet. Waves are created as wind blows over the water causing friction; this causes the water to start to move in a circular orbit. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Beach Headland Blowhole Wave cut platform 9. Concordant Coasts . This process. They have a mainly circular orbit, a steep gradient. Extended writing tasks 2 a half term. Lulworth cove where an oval shaped bay has been formed by more rapid erosion of the less resistant clay that lie behind the . Reasons for Protecting Dawlish Warren: 1. How is urban planning improving the quality of life for the urban poor in Mumbai? They have a. gradient, typically under . A concordant coastline produced by the geological structure of folds parallel to the coast. Concordant coasts have alternating layers of hard and soft rock that run parallel to the coast. 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. As the wave approaches a coast, its progress is modified due to friction from the seabed, halting the motion of waves. Coastlines are constantly changing, with sea levels rising or falling, and it is no different with submergent coastlines. Secondly, erosion of concordant coastlines results in the formation of coves while the erosion of discordant coastlines results in headlands and bays. Because the soft rock is exposed, it is eroded faster than the hard rock. Which of the following is NOT a major process through which waves shape the coast? These are coastlines where the bands of rock run perpendicular to the coastline meaning . Let's take a look at some of the different types of coastlines and their role in our geopolitics and global climate. 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. The low-energy wave spills into the bays as . The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. 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. (bands) of hard rock and soft rock; many bays and headlands. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. Ria coastlines are a type of submergent coastline, but Dalmation landforms are associated with concordant coastlines. Stop procrastinating with our smart planner features. BBC Bitesize. Stacks, headlands, bays, cliffs and wave-cut platforms are all included. In 1982, the United Nations held a Convention on the Law of the Sea (UNCLAS), where maritime (sea) boundaries were established. Find this Pin and more on KS4 Changing Landscapes of the UK by Mr Haden. docx, 24.88 KB. Soft engineering: Beach nourishment is a type of soft approach. What is the highest point of a wave called? . Add in the missing words. Identify your study strength and weaknesses. Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. But do they serve as anything more than a place to go for a hike or a tan? Have you ever gone for a stroll on a beach? A case study of the coastal recession at the Nile Delta for Edexcel A Level Geography. This cove is located near the village of West Lulworth and is one of the best examples of a concordant coastline. We use cookies to ensure that we give you the best experience on our website. Where the rock outcrops run parallel to the sea. 3. 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. Discordant coasts forms where geological structure is such that different rock strata of folds are aligned at an angle to the coastline. Limited law enforcement jurisdiction to prevent crimes related to customs or trafficking. Be perfectly prepared on time with an individual plan. This happened over about 1000 years, (very rapid) and submerged coastlines. A concordant coastline has the same type of rock along its. 4 - the process of forming Lulworth Cove, Dorset, UK. Safe access points to the shoreline at several points around the edge. Case studies Dorset Jurassic coast and Holderness. Lulworth Cove and Stair Hole, with narrow openings, widening laterally parallel to the coast. Insert links to other pages or uploaded files. A wave-cut platform is a wide, gently sloping surface found at the cliff's base and extends into the sea. You don't have permission to comment on this page. Categories . What is the distance between trough and crest called? Soft rocks like mudstone and siltstone Hilbre Island (Cheshire) is an example of a possible fieldwork location. South Dorset Coast 1. GCSE and A Level Geography Revision. They have a mainly circular orbit, a .. gradient. By registering you get free access to our website and app (available on desktop AND mobile) which will help you to super-charge your learning process. Both concordant and discordant. Earn points, unlock badges and level up while studying. guildford school of acting auditions; gilroy google font alternative; cuisinart steamer insert; Blog Post Title February 26, 2018. 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 . ALEVEL GEOGRAPHY - COASTAL LANDSCAPES | EQ1 : the littoral zone ; offshore, nearshore and backshore. Copyright2007 - 2023 Revision World Networks Ltd. This differential erosion creates headlands and bays along discordant coastlines. full verbatim. What factors affect population density and distribution? geography revision coastal landforms 264.4K views Discover short videos related to geography revision coastal landforms on TikTok. Pinterest. Coastlines of Submergence: i. Ria Coast: During the Ice Age a great deal of water was locked up in ice. Lulworth Cove is a World Heritage site and part of the Heritage Coastline. Which of the following are major types of coastlines? 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. Key Question: What are the different landforms of the Jurassic Coast? What are the causes of deforestation in the Amazon? Learn vocabulary, terms, and more with flashcards, games, and other study tools. However, when the hard rocks punctured by either faults or ridges, inland soft rocks yield to erosion. discordant coastline diagram. Originally a band of resistant Portland . The sea has broken through this barrier and easily eroded the clays behind it. Coastal Geology. 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. Create your own unique website with customizable templates. Free and expert-verified textbook solutions. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . Importance of the Delta for the region. Concordant coastline. North of Swanage, the chalk outcrop creates the headland which includes Old Harry Rocks. When the auto-complete results are available, use the up and down arrows to review and Enter to select. This is important in delineating who has legal, economic, and military jurisdiction in areas along the coast. Along the coastline of Dorset, there are concordant and discordant coastlines. Additionally, hotter temperatures enable extreme weather events like hurricanes to occur more frequently. There are four major types of coastlines: emergent, submergent, discordant, and concordant. Concordant coastlines tend to have fewer bays and headlands. The longer the fetch length and the faster the wind speed, the . (For example the east of the Dorset coast) How Geology affects the coast . The River Tees landforms of erosion and deposition, Case Study Ganges/Brahmaputra River Basin, Geological time is on a different time to human time, Different rocks create contrasting landforms and landscapes. Bay and headland - Durdle Door, Dorset. chalk) . Three complete lessons and a worksheet pack that cover the main erosional coastal landforms. Fetch length along with the wind speed (or strength) determines the size of waves produced. Tectonic forces produced by the collision of African and Eurasian plates compressed Carboniferous Limestone during the Alpine Orogeny 50 million years ago. Coastlines will expand as climate change continues. On discordant coastlines, differential erosion may occur, where bands of hard and soft rock outcrop at right angles to the sea. Long offshore islands and coastal inlets are running parallel to the coastline. The swash of a destructive wave is much weaker than its backwash. The northern part is Eocene clay (Barton Beds), including significant deposits of Purbeck Ball Clay. The UK's coastline is 31,368 km long (if you include all the main islands). Students will learn about the different types of erosion at the coast and will be able to explain how they create coastal landforms. The angle these bands make with the coastline makes it either a concordant or discordant coastline.
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