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AS and A Level: Rocks & Weathering
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The minerals that are provided by the parent material erode at different rates and use different processes of weathering. Other impacts that the parent material has on the soil type is the soils depth, texture, permeability and the soils nutrient content, as well as this, the parent material also has an impact on the soils colour. Another large factor that can affect soil is the climate. The climate of the area, determines the soil type on a larger global scale then other factors. Climate also determines vegetation cover which in turn influences soil development. The climate can affect the rate of the parents rock erosion, in a hot humid environment, the parent rock would have a rapid breakdown, resulting in soil being formed in a considerably shorter timescale.
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(Rock specimens can be collected and analysed further in the lab). A clinometer will be used to determine the angle of dip as this gives angle readings to a high degree of accuracy. A sedimentary log will be used because it is a reliable method on which a large amount of data can be stored. NB throughout the trip health and safety must be considered due to the instability of the cliff faces, appropriate safety gear must therefore be used at all times.
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The aim of this report is to define the geological evolution of the area around Stirling University and the Bridge of Allan.
The highlands and Lowlands are separated by the near vertical Highland Boundary Fault, a large fracture that penetrates deep into the earth's crust separating different crustal blocks.' (British Geological Survey: Loch Lomond to Stirling). The British Geological Survey of the Stirling Area as quoted describes briefly the geological features of the area. Within Scotland, and particularly the central belt of Scotland where the Lowlands dramatically meet the Highlands, there lies some of the most extraordinary and miss-matched Geology seen anywhere on the planet, this can be explained by looking at the history of the overall evolution of Scotland.
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I am trying to find out how footpath erosion on Pen Y Fan which is a national park, compares to footpath erosion on Cock Marsh which is in a village and is not in a national park.
Also this may get worse and the footpath may widen because the footpath is stoney and the walkers would find the grassy banks easier to walk on so the boots would erode the banks and the process wont stop. There are many activities that interest people to come to the Brecon Beacons e.g. gorge walking and challenging high ridges for the walkers and cycling etc. these examples all cause erosion. Also the S.A.S trains on the mountains in which they run over the mountains which causes erosion to the footpaths and may cause more footpaths if the run on different routes.
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The Mount Vesuvius in the photograph is the new cone that has grown up over the years since AD79. Main Essay Until recently, scientists often ignored the evidence that was presented before them. The mystery of what happened to the people of Pompeii was often put down to the victims being trapped and killed by lava flow. However, this theory has now been disproved, after the 1944 eruption of the Vesuvius. This occurred during the Second World War, when the Vesuvius erupted, spewing out lava in the direction of the city of San Sebastiano.
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Then record the size and then measure the crystal size on the card in millimetres. The variations in crystal size may be due to chilled/ baked margins. The use of millimetres will help to give us a very good degree of accuracy for our results. 2. Mineral content. The mineral content is identified by looking at a proportion of the intrusion and estimating the percentage of a mineral in that specific section. This will help identify whether there are variations in the type of magma in each intrusion.
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Compare and Contrast the Weathering Found in an Area of Limestone Country with that Found in an Area of Granite.”
There are many characteristic features of a limestone landscape both on the surface and underground that are the product of weathering. The main weathering processes are carbonation, in which rainfall that acts as carbonic acid reacts with the limestone to form carbon dioxide. This leads to solution, which is a form of erosion in which materials are dissolved into water. Limestones dissolve very easily which contrasts significantly to granite, which contains quartz that dissolves at an exceptionally slow rate. Chelation is another weathering process that involves the organic matter of plants.
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