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. Geological structure is the characteristics and arrangement of rock units. The Earth has around 620,000 kilometres (390,000 mi) of coastline. Introduction to the location of the Delta. These will be exam question style ranging from 4, 6 and 9 mark . The bands of soft rock, such as sand . chalk) May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. How reliable are economic indicators of development? B Gradually the . The concordant coastline runs from west to east along the south coast. Sea forces change coastal landscapes with the wind being the major source of waves. Caves, arches, stacks and stumps Weathering and erosion can create caves, arches, stacks and stumps along a headland. Because of this difference in erosion resistance, discordant coastlines are home to headlands, due to eroding hard rock, and bays, due to eroding soft rock. Case studies Dorset Jurassic coast and Holderness. What is a discordant coastline? These will be exam question style ranging from 4, 6 and 9 mark questions. In Cork in the south west of the Republic of Ireland, Formed from less resistant Carboniferous Limestone. How Is Climate Change Impacting The Water Cycle. pptx, 1.58 MB. . This quiz focusses in particular on those features which are caused by coastal erosion. It has a discordant coastline along the east and concordant coastline along the south. The coast is very young due to recent ice ages and resulting sea level change. Less resistant Purbeck limestone and Wealden Clay lie behind the Portland, with resistant chalk further north.
GCSE Geography Revision : Unit 1: The Coastal Zone - Blogger A coastline with the same type of rock along its length; fewer bays and headlands.
Coastal Geology - Geography A-Level - Revision World Along the coastline of Dorset, there are concordant and discordant coastlines. 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. 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 . The following are facts about constructive waves. Where the rock outcrops run parallel to the sea. For example, both X and Y rate item 1 higher than item 2. GCSE Geography Coastal landscapes in the UK learning resources for adults, children, parents and teachers. Coastlines are formed through the processes of erosion, transportation, and deposition. Consequently headlands . Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. As these systems develop at sea, communities along coastlines are the most vulnerable to any potential destruction. What are Mumbais social and economic opportunities? Students will learn about the different types of erosion at the coast and will be able to explain how they create coastal landforms. Tip: To turn text into a link, highlight the text, then click on a page or file from the list above. Beach material is deposited as a bridge of sediment (berm) at the top of the beach. That is, if both the row and column index move in the same direction - both increase or both decrease, then the pair is concordant. In addition, as waves approach a coast, they are refracted so that their energy is concentrated around headlands but reduced around bays. Discordant coastlines occur when bands of different types of rocks run perpendicular (at 90 degrees) to the coast. Teacher. 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. Discordant coasts are also known as Atlantic coasts, after the Cork coastline in the Republic of Ireland. 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. They form as a ledge of bedrock left behind as the dliff retreats. Have you ever gone for a stroll on a beach? How is demand for energy changing in the UK? Fetch length along with the wind speed (or strength) determines the size of waves produced. Limited law enforcement jurisdiction to prevent crimes related to customs or trafficking. 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. Find out more about concordant coastlines. Watch popular content from the following creators: ambs(@aambersaunders), Revision(@lastminstudies), - (@alevelhelp.32), GCSE revision 2022(@revision.2022), BBC Bitesize(@bbcbitesize), Revision(@lastminstudies), Revision . Concordant coastlines are characterised by bands of similar types of rocks running parallel to the coast. pg.
Dorset coastline - Coastal landforms - AQA - BBC Bitesize If the coastline is discordant then the rock type will change as we go up the coastline, An example of a discordant coastline is swanage A concordant coastline comprises bands of different rock types that run parallel to the shore. Sheep's Head Peninsula to the south formed from more resistant coarse sandstone, projects out 21 km.
2B.2B Their Morphology - A-LEVEL GEOGRAPHY REVISION: EDEXCEL a headland separated by two bays.
Coastal Erosion Landforms - Features and Formation - Blogger Meanwhile on concordant coastlines, where layers of rock run parallel to the coastline, cliffs are much more dominant. How does geology affect the formation of river landforms?
Coastal landforms - erosion and deposition - BBC Bitesize Wrong! What are the economic and environmental issues of energy production? The coastline determines everything. (For example the east of the Dorset coast) How Geology affects the coast . The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. Definitions. Historic records indicate that over 250 m of land were lost between 1600 and 1850. Erosional landforms - Coastal landforms - AQA - GCSE Geography Revision - AQA - BBC Bitesize. Which of the following are associated with discordant coastlines? Humans, too, could almost be classified as a coastal species! How have animals adapted to cold environments? The low-energy wave spills into the bays as . This area of the Jurassic coastline provides a habitat for a diverse range of natural life, particularly butterflies. A hard rock type such as granite is resistant to erosion and creates a promontory whilst a softer rock type such as the clays of Bagshot Beds . Have all your study materials in one place. 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. A concordant coastline has the same type. What are the effects of deforestation in the Amazon? Hilbre Island (Cheshire) is an example of a possible fieldwork location. The processes have been operating over the last 8000 years. starter: Students examine the picture and discuss what is happening to the houses and why. Shake Hands With Beef Girl, These act as agents of erosion because their backwashis greater than their swah. A hard rock type is resistant to erosion and creates a promontory whilst a softer rock type is easily eroded creating a bay. 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. Create and find flashcards in record time. As a wave undercuts a cliff the cliff retreats. The concordant coast may take one of two landform types. In the Holocene Interglacial constructive waves pushed the ride of sands and gravel landwards as sea levels rose. Safe access points to the shoreline at several points around the edge. (bands) of hard rock and soft rock; many bays and headlands. International migration from Syria to Europe, Japan A country with a high dependent population. Each process can produce several coastal features; however, they often work together to sculpt the coastlines. Type # 1. It is also known as Pacific type coastline, longitudinal coastline, or Dalmatian coastline.
Coastal Processes: Erosion, Transport and Deposition - Blogger Awesome, well done! Today. How is urban planning improving the quality of life for the urban poor in Rio de Janeiro? A concordant coastline. Less resistant rocks are eroded more than the resistant . The geology of the Isle is complex. Less resistant rocks are eroded more than the resistant . (8) Coasts - Grade Booster Geog' Clips A concordant coastline occurs where the bands of differing rock types run parallel to the coast. Seven cliff-top homes are badly damaged as the largest tidal surge in 60 years batters the east coast of England. Almera in Spain: a large-scale agricultural development, Sustainable Food Supplies in an LIC Bangladesh. How did the temperate deciduous woodland get like this? 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. Wave diffraction happens when the narrow opening to the cove causes the waves to bend, creating an arc shape wave. The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. The northern part is Eocene clay (Barton Beds), including significant deposits of Purbeck Ball Clay. They have low energy and an elliptical orbit. Named after the Dalmatia region on the Adriatic Sea. Erosion Sea forces change coastal landscapes with the wind being the major source of waves. Discordant coasts have a crenellated pattern of projecting headlands and indented bays. A wave-cut notch is created by erosional processes such . What is the impact of humans on the savanna? A ria coast hosts multiple rias. Okay, now we know what coastlines are. . Lulworth cove where an oval shaped bay has been formed by more rapid erosion of the less resistant clay that lie behind the . These coastlines may lead to the formation of either Dalmatia landforms or Haffs (also called lagoons). This is important in delineating who has legal, economic, and military jurisdiction in areas along the coast. However, when the hard rocks punctured by either faults or ridges, inland soft rocks yield to erosion. What is chemical and mechanical weathering? - Due to the presence of soft and hard rock, differential erosion occurs, with the soft, less resistant rock (e.g. Give the quiz another go and don't forget to read up on this area by heading over to our coasts resources using the topics link at the top of the page.
concordant and discordant coastlines bbc bitesize 3. Some concordant coasts have long, narrow islands running parallel to the coastline.