How do weather and climate affect river landscapes? Landscapes. The hard rock that forms Lulworth Cove is called the Portland limestone and chalk whereas the soft rock is clay. How does food insecurity affect the environment? The coastline determines everything. Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. A concordant coastline is an arrangement of rock strata along the coastline. Discordant These are where rock strata or structures are aligned at an angle to the coastline. 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). discordant coastlines. A bedding plane is the interface between two sedimentary strata. Along the coastline of Dorset, there are concordant and discordant coastlines. 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. It varies enormously from tropical looking Luskentyre in the Outer Hebrides, to the jagged coasts of Cornwall, from the low lying muddy estuarine coast of the Wash, to broad sandy beach and dunes at Bamburgh in Northumberland. 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. The hard rock acts as a protective barrier to the softer rock behind it preventing erosion. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . Development, population change and the demographic transition model, Strategies for reducing the development gap, How can the growth of tourism reduce the development gap? Stop procrastinating with our smart planner features. A chalk cliff face is at the back of the cove. Nie wieder prokastinieren mit unseren Lernerinnerungen. . 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. Erosion worsens as the waves becomes stronger. Irrespective of whether the coastline is concordant or discordant, as wave refraction takes place around the headlands and erosion of the bay is reduced, sub-aerial weathering such as corrosion and corrasion begins to . -Erode the coast-Short wave length, high and steep. Concordant coastlines tend to have fewer bays and headlands. BBC Bitesize. 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. These will be exam question style ranging from 4, 6 and 9 mark questions. Tectonic forces produced by the collision of African and Eurasian plates compressed Carboniferous Limestone during the Alpine Orogeny 50 million years ago. Coastal Geology. lulworth cove concordant coastline. A concordant coastline occurs where the bands of differing rock types run parallel to the coast. Risks facing the Delta. The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. Did you know? Spits were formed in river mouths where the river was powerful enough to break through the sand ridge to the sea. Anak Krakatau & Sunda Strait Tsunami Indonesia Case Study 2018. The Jurassic Coast is a hugely diverse and beautiful landscape underpinned by incredible geology of global importance. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . Concordant Coasts . The differing resistance to erosion leads to the formation of headlands and bays. Coastlines with the same type of rock along its length tend to have fewer features ad are called concordant coastline. Originally a band of resistant Portland . These bands of rocks alternate between soft rock and hard rock, all eroding at different rates and in varying ways. They are most common where .. is short. 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. How are Nigerias trading and political relationships changing? 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. Sustainable development in the desert The Great Green Wall. pg. True or False: In 1982, the United Nations Convention on the Law of the Sea created international maritime boundaries based on relative naval power. A discordant coastline occurs where bands of different rock type run perpendicular to the coast. On discordant coastlines, differential erosion may occur, where bands of hard and soft rock outcrop at right angles to the sea. A famous example of a coastline. Headlands and bays Cliffs along the coastline do not erode at the same pace. Where are the areas of water deficit and surplus in the UK? Water quality and pollution management in the UK. 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. What percent of the global population lives within 100km of a coastline? CAVES, ARCHES, STACKS AND STUMPS These are found on headlands where wave refraction means that erosion takes place on both sides of the headland. When a stretch of coastline is formed from. Coasts can be classified in a variety of . When a wave breaks upon the shore, rocks and pebbles that are being carried collide with each other breaking them and eventually making them smaller and smoother. The discordant coastline runs from Studland Bay to Durlston Head as the geology changes from clay and sands, to chalk, to clay and . Consequently headlands and bays form along discordant coastlines and whilst headlands remain exposed to the force of the waves, bays are sheltered. https://commons.wikimedia.org/wiki/File:Lulworth.png. 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. As the wave approaches the coast, it gains height and drops onto a steep beach. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. What is a discordant coastline? Wave refraction involves waves breaking onto an irregularly shaped coastline, e.g. Importance of the Delta for the region. Fetch length along with the wind speed (or strength) determines the size of waves produced. Why is the Human Development Index important? Describe the characteristics of destructive waves (3) Coasts - Grade Booster. Discordant coastlines are characterised by different bands of rocks running perpendicular to the coast. How is demand for energy changing in the UK? Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. The image below (figure 2) is taken at Durlston Head, which shows the bay (yellow) and the headland (red). How has demand for water in the UK changed? Or in other words, these types of coastlines have the same type of rock all along its length. material at the coast and in a river. Use the resources provided to write notes that UK Sediment Cells Source: Scool. This belongs to: _____. 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). The United Nations uses coastlines to help determine international boundaries at sea. The arch has formed on a concordant coastline where bands of rock run parallel to the shoreline. A concordant coastline comprises bands of different rock types that run parallel to the shore. Case studies Dorset Jurassic coast and Holderness. ALEVEL GEOGRAPHY - COASTAL LANDSCAPES | EQ1 : the littoral zone ; offshore, nearshore and backshore. Will you pass the quiz? 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 . Lulworth Cove is a World Heritage site and part of the Heritage Coastline. The four major types of coastlines are emergent coastlines; submergent coastlines; concordant coastlines; and discordant coastlines. A case study of the coastal recession at the Nile Delta for Edexcel A Level Geography. A concordant coastline has the same type of rock. A fjord coast hosts multiple fjords. Pinterest. A concordant coastline comprises bands of different rock types that run parallel to the shore. The concordant coast may take one of two landform types. A concordant coastline has the same type. As the wave breaks, it carries material up the beach in its swash. 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 . Type # 1. Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. This is considered sovereign national territory, the same as boundaries on land. If you are citizen of an European Union member nation, you may not use this service unless you are at least 16 years old. 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. Type # 1. There are 3 main groups of coastal features which result from coastal erosion: 1. Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. The procedure for calculating concordant and discordant pairs compares the classifications for two variables (for example, X and Y) on the same two items. A combination of geological structure and sea level riseproduces the morphology of landforms aligned parallel to the coastline. This is a Geography revision website for the Edexcel A-Level from 2016 (so the new syllabus), and will contain my class notes, own research and detail from revision guides and textbooks. 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. It has a discordant coastline along the east and concordant coastline along the south. It is where salts and acids within the seawater will gradually dissolve some types of rock found along the coast. 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.
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