UNCLAS implemented a universal system for maritime boundaries based on baselines, which are measured from the low-water line at the coast. 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. Sustainable Management of the Tropical Rainforest, Sustainable Management of the Amazon Rainforest. Which of the following is NOT typically found in a coastal ecosystem? Terms of use / Privacy policy / GDPR, About this workspace Let's take a look at some of the different types of coastlines and their role in our geopolitics and global climate. 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. lulworth cove concordant coastline. . Coastal. Emergent Coastlines. Economic losses to businesses if areas become unattractive and depopulated. The latter can happen when tectonic forces lowered the land level or when river deposits and compaction of alluvial (river) sediments occur. A concordant coastline has the same type of rock along its. However, overall, access to a coastline can grant a country food supplies and economic resources that land-locked countries cannot acquire without trade. Specification and other support materials for teachers, including delivery guides Explore. Key Question: What are the different landforms of the Jurassic 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. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity.On land, they harbor important ecosystems such as . Our geography videos are developed with links to various specifications including Geography GCSE, Geography IGCSE, Geography AS-level, Geography A-level, Geography IA-level, Geography National 5, Geography Higher. - Headlands form along discordant coastlines in which bands of soft and hard rock outcrop at right angles to the coastline. They are most common where fetchis short. The more the waves crash onto the beach, the more sediment is washed out to sea. Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long. a headland separated by two bays. As mentioned earlier, discordant coastlines form headlands and bays; on the other hand, concordant coastlines form coves. Earn points, unlock badges and level up while studying. The differing resistance to erosion leads to the formation of headlands and bays. The Dorset Coast contains a range of landforms including Durdle Door, Lulworth Cove . Discordant coastline occurs where bands of differing rock type run perpendicular to the coast. Published by at February 16, 2022. A bedding plane is the interface between two sedimentary strata. 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. The three major coastal processes include erosion, transportation and deposition. 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. Learn about and revise coastal landforms, whether caused by erosion or deposition, with GCSE Bitesize Geography (AQA). If the direction of the classification is not the same . What is the impact of humans on the desert? 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. Hydraulic action, attrition, abrasion, and corrosion. The part of the wave in the deeper water moves forward faster causing the wave to bend. Gcse Geography Revision Aqa Coastal Landscapes Teacher Image Paisajes Coastlines are very important to people because they have many uses, but mankind is also placing coastlines under severe threat. Discordant. May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. (For example the south or the Dorset coast) . Economic opportunities and challenges in Lagos. Beara Peninsula to the north formed from more resistant Devonian Old Red Sandstone and projects 35 km into the Atlantic Ocean. StudySmarter is commited to creating, free, high quality explainations, opening education to all. discordant coastline diagram. BBC Bitesize. Erosion. Concordant coastlines tend to have fewer bays and headlands. Gone surfing? (bands) of hard rock and soft rock; many bays and headlands. That is, if both the row and column index move in the same direction - both increase or both decrease, then the pair is concordant. This is because access to the coast offers the opportunity for harvesting marine resources, especially fish, as well as the ability to conduct international trade via the sea. South Dorset Coast 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 . The warmer climate that followed melted much of the ice. Water quality and pollution management in the UK. Originally a band of resistant Portland . Lulworth cove where an oval shaped bay has been formed by more rapid erosion of the less resistant clay that lie behind 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. The high degree of indentation of Bantry Bay is not solely influenced by the relative resistance of rock types, but also the orientation of strata SW-NE means that they directly face high energy Atlantic waves driven by the prevailing SW wind. Type # 1. Jamaica Case Study, How can the growth of tourism reduce the development gap? Erosional landforms - Coastal landforms - AQA - GCSE Geography Revision - AQA - BBC Bitesize. Waves can be gentle and infrequent or more significant, more frequent, and more powerful. This is called a discordant coastline. full verbatim. A concordant coastline occurs where the bands of differing rock types run parallel to the coast. Each process can produce several coastal features; however, they often work together to sculpt the coastlines. What problems are caused by global warming? Type # 1. What are the air masses that affect the UK? The site is self-funded and your support is really appreciated. In 1982, the United Nations held a Convention on the Law of the Sea (UNCLAS), where maritime (sea) boundaries were established. A coastline is anywhere where the land meets the water. Safe access points to the shoreline at several points around the edge. Stop procrastinating with our study reminders. Lines of islands separated by narrow sea channels parallel to the coast (sounds). 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 . Discordant coasts have a crenellated pattern of projecting headlands and indented bays. As these systems develop at sea, communities along coastlines are the most vulnerable to any potential destruction. This quiz focusses in particular on those features which are caused by coastal erosion. shale), eroding quicker than the hard, resistant rock (e.g. 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. Soluble materials dissolve in water and are carried along. As the wave approaches a coast, its progress is modified due to friction from the seabed, halting the motion of waves. Which of the following are associated with discordant coastlines? Many of these types of coastlines were actually formed toward the end of the Last Glacial Period (LGP). The time wind takes to blow, wind speed and the fetch (distance the sea has covered) influence wave sizes. These act as agents of erosion because their backwashis greater than their swah. When a stretch of coastline is formed from different types of rock, headlands and bays can form. 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. A concordant coastline produced by the geological structure of folds parallel to the coast. 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. Pebble sized particles are bounced along the river bed/sea by the force of the water. Soft engineering: Beach nourishment is a type of soft approach. 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 . Wave diffraction happens when the narrow opening to the cove causes the waves to bend, creating an arc shape wave. Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. 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. In some cases it is estimated that there was a rise . Discordant coasts forms where geological structure is such that different rock strata of folds are aligned at an angle to the coastline. How is urban planning improving the quality of life for the urban poor in Mumbai? The Jurassic Coast is a world-renowned site where you can find geological (natural) features, and different types of fossils, such as dinosaurs and a fossil forest. The site is self-funded and your support is really appreciated. Economic losses to businesses if areas become unattractive and depopulated. What are shanty town improvement schemes? Erosion worsens as the waves becomes stronger. Concordant coastlines form coves, which are round areas of water that have narrow entries from the sea. (bands) of hard rock and soft rock; many bays and headlands. There are four processes involved in the eroding coastlines. The net result is that the sediment gets smaller and smaller over time. Select all that apply. Soft rocks like mudstone and siltstone Wrong! They are most common where .. is short. Ria coastlines are a type of submergent coastline, but Dalmation landforms are associated with concordant coastlines. The Isle of Purbeck, in Dorset, is an example of where a concordant and discordant coastline exist very close to one another. How are Nigerias trading and political relationships changing? For example, this could be a joint in chalk. As our Earth warms, glaciers melt, causing the sea level to rise. 3.1B Transport Technology and Globalisation, 3.2 Political and Economic Decision Making, 7C Economic Development and Environmental Impact, 8B Controlling the Spread of Globlisation, 4A.1B Economic Activity and Social Factors, 4A.1A Changing Function and Characteristics, 4A.6 Evaluating the need for Regeneration, 6C Representation and Need for Regeneration, 10A Measuring the Success of Regeneration, 12A Restructuring and Contested Decisions, 7.5 Superpowers and International Decision Making, 7.6 Superpowers and the Physical Environment, 7.6C Middle-Class Consumption on Emerging Powers, 7.8A Emerging Powers and the Developing World, 8.2 Variations in Health and Life Expectancy, 8.3A The relationship between economic and social development, 8.5A Human Rights Vs Economic Development, 8.8 the Positive and Negative of Development, 2B.2C Geological Structure and Cliff Profiles, 2B.3B Rock Strata and Complex Cliff Profiles, 4C Coastal Landscapes Produced by Erosion, 8C Temporal Variations in Coastal Recession, 9A Local Factors that Increase Coastal Flood Risk, A - Economic and Social Losses from Recession, 2B: 12 Integrated Coastal Zone Management, 1B Importance and Size of Stores and Fluxes, 5.4 Deficits within the Hydrological Cycle, 5.8 Consequences and Risks of Water Insecurity, 8A - Causes and Pattern of Physical and Economic Scarcity, 5.9C Integrated Drainage Basin Management, 6.1C - Geological Processes Releasing Carbon, 6.2 Biological Processes Sequestering Carbon, 6.3 Human Activity Altering the Carbon Cycle, 6.6C Radical Technologies to Reduce Carbon Emissions, 6.7 Human Activity Threatening the Carbon and Water Cycles. How do changes affect the balance of an ecosystem? coastlines. 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). If the direction of classifications is the same, the pairs are concordant. Waves drag in the shallow water approaching a headland so the wave becomes high, steep and short. Because the soft rock is exposed, it is eroded faster than the hard rock. The differing resistance to erosion leads to the formation of headlands and bays. chalk) May 30, 2019 - Learn and revise about waves and the coastal zone with BBC Bitesize KS3 Geography. A concordant coastline is where the same rock runs along the length of the coast. The Portland limestone is resistant to erosion; then to the north there is Swanage Bay where the rock type is a softer greensand. English: - Romeo and Juliet (York Notes) 978-1447982234 An Inspector Calls (York Notes) 978-1447982166 GCSE English Literature for AQA . discordant coastline diagram - Flix Houphout-Boigny Foundation for It's a way of having all my information in one place. 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. Waves in the middle of the bay, where the water is deeper, do not lose velocity as . The northern part is Eocene clay (Barton Beds), including significant deposits of Purbeck Ball Clay. It has a variety of other micro-features and a unique geology. 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. What is chemical and mechanical weathering? The differing resistance to erosion leads to the formation of headlands and bays. formed by the erosion of less resistant Wealden Clays. 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). Time for Geography | Coasts Videos If you continue to use this site we will assume that you are happy with it. An emergent coastline that "emerges" from the water--either the land has risen, or the water level has fallen. Swam in the ocean? Learn vocabulary, terms, and more with flashcards, games, and other study tools. Highly popular with tourists - 20,00 people on the spit at peak times (the Environment Agency concluded that between 18th August and the 12th December 2004, 487,624 visitors visited Dawlish Warren equating . Sea turtles return to coasts to lay their eggs, and birds like gulls and pelicans do much of their hunting near the shore. . You need to do some work on landforms of coastal erosion. If they move in opposite directions - one increases while the other decreases - then the pair is discordant. Case study - coastal landforms: Dorset coastline - BBC Bitesize 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). When the following wave breaks, its swash will deposit more material without it being 'captured' by the backwash of the preceding wave. Re-rerouting a two lane road can cost between 150,000 and 250,000 per 100 m. The collapse of the section of coast supporting the South Devon Main Line Railway in February 2014 cost 35 million to repair, and businesses in the South West lost 60 million. Erosion. It is one of the best examples in Europe of the stages of erosion on a concordant coastline. Concordant and Discordant Coastlines by Leia Daniels - Prezi Sea forces change coastal landscapes with the wind being the major source of waves. Today. 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. Humans, too, could almost be classified as a coastal species!