Changing rates of rainforest deforestation. Wave refraction involves waves breaking onto an irregularly shaped coastline, e.g. The site is self-funded and your support is really appreciated. Soft engineering: Beach nourishment is a type of soft approach. Named after the Dalmatia region on the Adriatic Sea. - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. The procedure for calculating concordant and discordant pairs compares the classifications for two variables (for example, X and Y) on the same two items. An example of a popular cove situated in a concordant coastline is the Lulworth Cove. Headlands and bays Cliffs along the coastline do not erode at the same pace. As these systems develop at sea, communities along coastlines are the most vulnerable to any potential destruction. 5 July 2020 / in AQA GCSE Geography , Coasts , Landforms of Coastal Erosion / by Anthony Bennett A discordant coastline is where the geology alternates between strata (bands) of soft and hard rock. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. The longer the fetch length and the faster the wind speed, the . Bits of rock and sand that the waves have picked up are thrown against the cliff face. pptx, 1.58 MB. Fig. Rocks outcrop at right angles to the sea, forming headlands and bays. The following are facts about destructive waves. 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. 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. 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. Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. The low-energy wave spills into the bays as . Both concordant and discordant. . The form of the coastline around Durdle Door is controlled by its geologyboth by the contrasting hardnesses of the rocks, and by the local patterns of faults and folds. These processes are happening constantly and usually work in conjunction to produce coastal features. A concordant coastline is an arrangement of rock strata along the coastline. They have a low gradient, typically under one meter in height. Beach Headland Blowhole Wave cut platform 9. Lulworth Cove is a classic example of a 'concordant coast' - i.e. What is the impact of humans on the desert? What is the impact of humans on the savanna? than in summer. The coastline between Durlston Head and Studland Bay in Dorset, UK, is a great example of a discordant coastline. The Jurassic Coast begins at Orcombe . - Internet Geography What is a concordant coastline? 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. A wave-cut notch is created by erosional processes such . As the wave approaches the coast, it gains height and drops onto a steep beach. Did you know? Great Ocean Road, Australia. The Earth has around 620,000 kilometres (390,000 mi) of coastline. Subsequently there was an increase in the waters of the oceans and the sea level rose appreciably. A concordant coastline is where the same rock runs along the length of the coast. Create and find flashcards in record time. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. Sustainable Management of the Tropical Rainforest, Sustainable Management of the Amazon Rainforest. Shingle ridge reconnected island of Portland Bill to land (a tombolo). The sea attacks a weakness in the base of the cliff. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. Where the land rises to the sea there are several parallel strata of Jurassic rocks, including Portland limestone and the . 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. The part of the wave in the deeper water moves forward faster causing the wave to bend. . Paired spits formed parallel to the coast with haff lagoon behind at the mouth of the River Vistula in Gdansk. A concordant coastline has the same type of rock. Concordant Coasts . A concordant coastline has the same type of rock along its. Concordant coasts have alternating layers of hard and soft rock that run parallel to the coast. Meanwhile on concordant coastlines, where layers of rock run parallel to the coastline, cliffs are much more dominant. The rise in sea level can be the result of an increase in water volume or the sinking of the land's surface. 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 . Development, population change and the demographic transition model, Strategies for reducing the development gap, How can the growth of tourism reduce the development gap? This continual process can weaken the joints and cracks in the cliff, causing pieces of rock to break off. Concordant Coasts . It is only when the water enters shallower areas that the water itself moves forward. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. The Early Cretaceous, sometimes known as Lower Cretaceous, is the period stretching from 145 million years ago to 100.5 million years ago. For example, this could be a joint in chalk. A submergent coastline is a coastline that has submerged below the water. A concordant coastline can take one of the following two landform types: An example of a concordant coastline is Lulworth Cove, again, in Dorset, UK (figure 3). The low-energy wave spills into the bays as . 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. Coastal Erosion. However, when the hard rocks punctured by either faults or ridges, inland soft rocks yield to erosion. Shaping our coasts. 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. Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. Destructive waves are usually very high, over 1m. How does flooding affect humans and the environment? It has a discordant coastline along the east and concordant coastline along the south. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. How can we increase the amount of food produced globally? Erosional landforms - Coastal landforms - AQA - GCSE Geography Revision - AQA - BBC Bitesize. The differing resistance to erosion leads to the formation of headlands and bays. (8) Coasts - Grade Booster Geog' Clips 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. Little Hilbre Island (Cheshire) by Google Earth / ESRI, Imagery 2016 Getmapping plc, Map data 2016 Google. . 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. A wave-cut platform is a wide, gently sloping surface found at the cliff's base and extends into the sea. 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). Headlands are formed when the sea attacks a section of coast with alternating horizontal bands of hard and soft rock. Almera in Spain: a large-scale agricultural development, Sustainable Food Supplies in an LIC Bangladesh. The coastline determines everything. Wrong! Lerne mit deinen Freunden und bleibe auf dem richtigen Kurs mit deinen persnlichen Lernstatistiken. 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. A bedding plane is the interface between two sedimentary strata. A famous example of a coastline. The Jurassic Coast begins at Orcombe . Transportation is the movement of material from a coastline--such as sand and gravel--while deposition is the addition of material to a 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. Discordant These are where rock strata or structures are aligned at an angle to the coastline. The swash of a destructive wave is much weaker than its backwash. 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. Secondly, erosion of concordant coastlines results in the formation of coves while the erosion of discordant coastlines results in headlands and bays. What are the environmental impacts of economic development in Nigeria? More resistant strata erode only slowly, and are left projecting into the sea as headlands. Correct! Teacher. Okay, now we know what coastlines are. coastlines. 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. The concordant coastline runs from west to east along the south coast. Anak Krakatau & Sunda Strait Tsunami Indonesia Case Study 2018. The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. In contrast with emergent coastlines, submergent coastlines are coastlines submerged under water due to rising sea levels. The soft rock is made of clay and sands, and the hard rock is chalk and limestone. Numerous plants and animals have adapted to live along coastlines. The cove is located in a South West England County known as Dorset that is found along the English Channel. What is the site and situation of a settlement? How has demand for water in the UK changed? How is demand for energy changing in the UK? BBC Bitesize. Figure 3: Location of Lulworth Cove, Dorset, UK, map data: 2022 Google. For example the Neman Haff behind the bar running from the Kaliningrad in Russia to the Lithuanian coast at the mouth of the river Neman. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. By contrast, when the rock strata are perpendicular to the coastline, the coast is referred to as discordant. This process. True or False: Concordant coastlines form coves. concordant and discordant coastlines bbc bitesize - hillsboro, ohio newspaper classifieds - hillsboro, ohio newspaper classifieds - The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. Case studies Dorset Jurassic coast and Holderness. Along the coastline of Dorset, there are concordant and discordant coastlines. Resistant Cretaceous Chalk forms the Foreland headland, projecting 2.5 km to the north. The water. It is where salts and acids within the seawater will gradually dissolve some types of rock found along the coast. Coasts Revision Booklet. 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. Label two landforms shown in the photograph (2) Coasts - Grade Booster. These will be exam question style ranging from 4, 6 and 9 mark questions. English: - Romeo and Juliet (York Notes) 978-1447982234 An Inspector Calls (York Notes) 978-1447982166 GCSE English Literature for AQA . Figure 5: Lulworth Cove in Dorset, UK, map data: 2022 Google. The process of erosion can create different landforms along the coastline. 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 . Fig. Geology is the study of the types of rocks that make up the Earth's crust. If the direction of the classification is not the same . What are the physical characteristics of cold environments? The difference in rock types between discordant and concordant coastlines means that there are differences in erosion. Over time, waves beating against the shore will wear it down (or erode it). Caves, Arches, Stacks and Sumps 3. Sustainable development in the desert The Great Green Wall. Three complete lessons and a worksheet pack that cover the main erosional coastal landforms. Tectonic forces produced by the collision of African and Eurasian plates compressed Carboniferous Limestone during the Alpine Orogeny 50 million years ago. These Dalmatian types normally occur . The length of perimeter approx 2km. How Is Climate Change Impacting The Water Cycle. They are gentle, flat waves with a strong swash and a weak backwash; as a result, constructive waves build beaches. Sediment Cells. Hydraulic action, attrition, abrasion, and corrosion. Which of the following are associated with discordant coastlines? The gradual breakdown of rocks due to . Stacks, headlands, bays, cliffs and wave-cut platforms are all included. $14 million dollar house maine; Nie wieder prokastinieren mit unseren Lernerinnerungen. The bands of soft rock, such as sand . What are the air masses that affect the UK? Extreme weather in the UK Beast from the East, Extreme Weather in the UK Summer Heatwave 2018. Coastlines are constantly changing, with sea levels rising or falling, and it is no different with submergent coastlines. What is a concordant coastline? The coast is the border between the land and the sea. Add in the missing words. Concordant coastlines tend to have fewer bays . Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). UNCLAS implemented a universal system for maritime boundaries based on baselines, which are measured from the low-water line at the coast. A famous example of a coastline. 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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