Rock types, such as limestone and granite, and structure (jointing and bedding) control the cliff profile. Past paper responses (Sample assessment) - Quizlet Coastal landscapes past exam questions Flashcards | Quizlet This then creates a slip plane. Coastal Systems and Processes. This is brought about by the arrangement of the moon and sun, which adjusts their gravitational pull. Chalk surrounds the boulder clay. Copyright2007 - 2023 Revision World Networks Ltd. Coastal environments are complex systems that involve the interaction of various factors, including the marine environment, natural environment, climate, biosphere, fluvial frameworks, structural processes, and human development and management. Chemical weathering happens because of a weak chemical reaction between water and rocke.g. International migration from Syria to Europe, Japan A country with a high dependent population. Covering KS3, GCSE and A-Level, we provide the most comprehensive GCSE and A-Level revision tools to pass your exams. Large landforms, such as the Llyn Peninsula in Wales, provide significant natural barriers that limit the movement of sediment. ubricates lines of weakness, e.g. One component that can be considered in the rate of coastal recession and the stability of cliffs, is cliff profiles and their bedding planes. 4B Wave Erosion Processes - A-LEVEL GEOGRAPHY REVISION: EDEXCEL Profile may exceed 90 degrees producing areas of overhanging rock; very vulnerable to rock falls. This process can be found in the chart below. The angle these bands make with the coastline makes it either a concordant or discordant coastline. Some cliffs are formed of a mixture of rock types - the exact . Edexcel A Level Geography Past Papers How did the temperate deciduous woodland get like this? Traction: Stones and larger sediment are moved along the ocean floor. The image below shows a wave-cut platform formed at Flamborough, Holderness Coast. (adsbygoogle = window.adsbygoogle || []).push({}); Cliffs and wave-cut platforms are landforms of erosion commonly found along the coast. boulder clay). Concordant (rock type runs parallel to the sea). Why is the Human Development Index important? The location of faults and strata with particularly high densities of joints and fissures, Either side of a fault line, rocks are often heavily fractured and broken and these weaknesses are exploited to marine erosion, They occur in most rocks, often in regular patterns, dividing rock strata up into blocks with a regular shape, Small cracks in rocks, often between a few cm and a few mm long. Necessary cookies are absolutely essential for the website to function properly. Define cliff profiles A the shape of a cliff cross-section is known as the profile they owe their form to geology, sub-aerial processes and wave energy along a given stretch of coastline 2 Q What do variations in cliff profiles reflect? Coastal erosion involves the breaking down and removal of material along a coastline by the movement of wind & water. If the rocks occur in layers, the dip of the rock also helps control steepness and form. There are four key types of erosion: Abrasion - waves transport material which hit the cliff and gradually wear it away . Joints Joints are fractures in rocks created without displacement. What is the impact of humans on the temperate deciduous woodland? Natural weathering is brought about by the underlying foundations of vegetation and settling birds. 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 weather the bay, furthering its development.
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