As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. Beara Peninsula to the north formed from more resistant Devonian Old Red Sandstone and projects 35 km into the Atlantic Ocean. Key Question: What are the different landforms of the Jurassic Coast? Selenium Deficiency In Baby Goats, Bull's Head in St Oswald's Bay. Teacher. Headlands and Bays 2. Limestone Case Study Malham, The Yorkshire Dales. [5] The arch has formed on a concordant coastline where bands of rock run parallel to the shoreline. Paisajes. What are active, dormant and extinct volcanoes? 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. The northern part is Eocene clay (Barton Beds), including significant deposits of Purbeck Ball Clay. Waves in the middle of the bay, where the water is deeper, do not lose velocity as . The Early Cretaceous, sometimes known as Lower Cretaceous, is the period stretching from 145 million years ago to 100.5 million years ago. concordant and discordant coastlines bbc bitesize - hillsboro, ohio newspaper classifieds - hillsboro, ohio newspaper classifieds - concordant and discordant coastlines bbc bitesize How has hot desert vegetation adapted to the climate? These will be exam question style ranging from 4, 6 and 9 mark questions. Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. The coastal engineering for the shoreline protection involves: . Strata are different layers (or beds) of rock. Links to wider reading and an introductory video. How has urbanisation helped Nigeria to develop? These act as agents of erosion because their . 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. How do changes affect the balance of an ecosystem? BBC Bitesize. Wave cut platforms as illustrated in the diagram and shown in the photograph are remnants of the previous cliff line. The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. 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. e.g. Can the risks of volcanic eruptions be reduced? Tip: To turn text into a link, highlight the text, then click on a page or file from the list above. 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. A famous example of a coastline. Caves occur when waves force their way into cracks in the cliff face. Headlands and bays - Coastal landforms - CCEA - BBC Bitesize Ripples are created; these ripples will become waves if the wind is sustained. There are rias throughout the world, including Poole Harbour in Dorset. Soft rocks like mudstone and siltstone material at the coast and in a river. But, let's be honest, it's not brilliant. A unique coastline within the UK is Lulworth Cove in Dorset. Many of these types of coastlines were actually formed toward the end of the Last Glacial Period (LGP). Awesome, well done! As our Earth warms, glaciers melt, causing the sea level to rise. What is the impact of humans on the Taiga? 3. For example, both X and Y rate item 1 higher than item 2. A concordant coastline has the same type of rock. This process. 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. in height. The part of the wave in the deeper water moves forward faster causing the wave to bend. Published by at February 16, 2022. The processes have been operating over the last 8000 years. Destructive waves are usually . They have low energy and an elliptical orbit. This is called a discordant coastline. Pinterest. (bands) of hard rock and soft rock; many bays and headlands. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline. How has the growth of Lagos caused inequality? The Jurassic Coast begins at Orcombe . Key Question: What are the different landforms of the Jurassic Coast? The concordant coastline runs from west to east along the south coast. Human actions and Physical factors affecting the Delta. Durdle Door - Wikipedia This is considered sovereign national territory, the same as boundaries on land. One of the topics looked at in GCSE Geography is the features that are found on a coastline. The warmer climate that followed melted much of the ice. When the auto-complete results are available, use the up and down arrows to review and Enter to select. Type # 1. Created up folded ridges (anticlines) and down folded valleys (synclines) aligned parallel to the coast. How have animals adapted to cold environments? A concordant coastline diminated by limestone in the map has the same type of rock along its length. 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. The meanings of the terms lithology, concordant and discordant coastlines are apparent throughout the lesson. These waves are also known as plunging waves. Where do volcanoes and earthquakes happen? Concordant coastline. 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. Why are deserts located along the tropics? discordant coastlines. The differing resistance to erosion leads to the formation of headlands and bays. 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. What challenges are associated with the growth of Rio? The three major coastal processes include erosion, transportation and deposition. Less resistant Purbeck limestone and Wealden Clay lie behind the Portland, with resistant chalk further north. 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 . If you continue to use this site we will assume that you are happy with it. Create beautiful notes faster than ever before. If the direction of the classification is not the same . 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). Use the resources provided to write notes that Wave Refraction and Coastal Defences. The outer hard rock is Portland limestone. concordant and discordant coastlines bbc bitesize 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. concordant coastlines. During the Devensian glacial the sea level was about 100 m lower than today as water was retained in huge ice sheets. Meltwater rivers on land beyond the ice front deposited thick layers of sand and gravels onto outwash plains (sandurs). Select all that apply. The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. Sometimes the outer hard rock is punctured allowing the sea to erode the softer rocks behind. A discordant coastline occurs where bands of different rock type run perpendicular to the coast. They have a. gradient, typically under . During a storm, the most common waves are destructive. Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. A chalk cliff face is at the back of the cove. English: - Romeo and Juliet (York Notes) 978-1447982234 An Inspector Calls (York Notes) 978-1447982166 GCSE English Literature for AQA . However, overall, access to a coastline can grant a country food supplies and economic resources that land-locked countries cannot acquire without trade. What is the distance between trough and crest called? A concordant coastline has the same type of rock. The UK's coastline is 31,368 km long (if you include all the main islands). Which of the following are associated with discordant coastlines? Paw Patrol Does Ryder Have A Crush On Katie, Large particles like boulders are pushed along the bottom of the river bed/sea by the force of the water. BBC Geography Bitesize: Coastal Processes Flashcards | Quizlet Named after the Dalmatia region on the Adriatic Sea. Coastlines are constantly changing, with sea levels rising or falling, and it is no different with submergent coastlines. Examples of discordant coastlines are Bantry Bay and Dingle Bay found in Ireland while an example of a concordant coastline is Lulworth Cove. 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. 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. Historic records indicate that over 250 m of land were lost between 1600 and 1850. Coasts - Erosion and Geology | Teaching Resources discordant coastline diagram - Flix Houphout-Boigny Foundation for Coastlines also help us demarcate international boundaries. If you've found the resources on this site useful please consider making a secure donation via PayPal to support the development of the site. Both concordant and discordant. The shape of the coastline (which is dependent on its geology) - on concordant coastlines, rocks are parallel to the wave front and therefore rates of erosion are similar along the coastline. The Earth has approximately 620,000 kilometres (390,000mi) of coastlines and they are not just a barrier between land and water; they are also important natural ecosystems. What is a concordant coastline? - Internet Geography CAVES, ARCHES, STACKS AND STUMPS These are found on headlands where wave refraction means that erosion takes place on both sides of the headland. False! Soft engineering: Beach nourishment is a type of soft approach. Where are the areas of water deficit and surplus in the UK? A coastline is anywhere where the land meets the water. 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 . Erosion Sea forces change coastal landscapes with the wind being the major source of waves. A ria is a drowned river valley that leads out to the sea. Shaping our coasts. It has a variety of other micro-features and a unique geology. Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant. 2B.2A Concordant and Discordant - A-LEVEL GEOGRAPHY REVISION: EDEXCEL lulworth cove concordant coastline. Importance of the Delta for the region. 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). That is, if both the row and column index move in the same direction - both increase or both decrease, then the pair is concordant. Coastlines of Emergence. 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. Discordant and Concordant Coastlines GCSE Geography A Level - YouTube Wrong! The concordant coastline runs from west to east along the south coast. caused by the shrinkage of igneous rock as it cools. Use the resources provided to write notes that The longer the fetch length and the faster the wind speed, the . 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. Long offshore islands and coastal inlets are running parallel to the coastline. Emergent Coastlines. Sustainable development in the Temperate Deciduous Woodland. Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines. The processes have been operating over the last 8000 years. The differing resistance to erosion leads to the formation of headlands and bays. Secondly, erosion of concordant coastlines results in the formation of coves while the erosion of discordant coastlines results in headlands and bays. Take a look at our resources under Topics in the menu at the top of the page. Time for Geography | Coasts Videos Concordant coastlines - A coastline parallel to the land structures which form the margin of an ocean basin. Subsequently there was an increase in the waters of the oceans and the sea level rose appreciably. Students will learn about different types of rock and will consider how resistance can affect rates of erosion. Create your own unique website with customizable templates. Touch device users . docx, 24.88 KB. The United Nations uses coastlines to help determine international boundaries at sea. What factors affect population density and distribution? Swam in the ocean? Waves are the main reason for coastal change. Coasts Revision Booklet. In 2001 it was inscribed as a World Heritage Site by UNESCO for the outstanding universal value of its rocks, fossils and landforms. Bands of soft rock such as clay and sand are weaker therefore they can be eroded quickly. 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. Waves can be gentle and infrequent or more significant, more frequent, and more powerful. 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. Changing rates of rainforest deforestation. The fetch, often called the fetch length, is the length of water over which a given wind has blown. As the wave breaks, it carries material up the beach in its swash. (8) Coasts - Grade Booster Geog' Clips Coastal Processes | Summary & Types | GCSE Geography Revision Notes Fig. How can we increase the amount of food produced globally? Gcse Geography Revision Aqa Coastal Landscapes Teacher Image Paisajes Coastal Processes: Erosion, Transport and Deposition - Blogger As a result of the coastal feature, the depth of water around a coast varies. What is the impact of humans on the savanna? 4: Formation of Lulworth Cove (https://commons.wikimedia.org/wiki/File:Lulworth.png) by Red (https://en.wikipedia.org/wiki/User:Red) licensed by CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/deed.en).
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