• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

How does beach sediment vary along the coast between Lochranza and Catacol?

Extracts from this document...


How does beach sediment vary along the coast between Lochranza and Catacol? Hypothesis For my investigation we studied a 550m stretch of beach between Lochranza and Catacol on the Isle of Arran, as shown on the OS map (page 2). On this beach it consisted of many granite and phylite pebbles. Phylite could have ended up here from erosion from the cliffs by abrasion. The granite however is not located in this area of the island and could only be transported by the River Eason, joining the River Charmadale and also the River Catacol. I think more likely though that the granite, which ended up on the beach we are studying, came from the River Catacol. When the granite is deposited at the river mouth they are all different sizes and we say that they are 'unsorted'. This granite could have been transported round to the location where we studied by Longshore Drift travelling from the Southwest and transporting sediment along the coast towards the Northeast sorting the granite as it moved. There is evidence that longshore drift is acting and travelling from the Southwest direction. ...read more.


0 3.5 3.1 4.1 3.1 4.1 2.5 2.4 2.0 3.2 3.3 50 3.2 3.1 2.5 2.2 2.0 2.3 3.1 2.2 2.3 2.8 100 2.6 3.5 1.5 1.5 1.5 1.1 1.8 3.4 3.8 2.4 150 2.5 2.0 1.8 3.1 2.2 3.5 2.6 2.5 4.0 2.5 200 5.8 8.3 4.6 3.6 3.1 3.5 6.3 5.0 2.9 5.2 250 8.9 9.2 8.5 8.6 8.7 6.8 8.2 6.5 10.7 8.9 300 7.2 8.5 7.3 3.5 8.2 6.0 6.8 12.5 3.9 6.7 350 8.7 8.9 7.0 6.2 9.2 5.9 6.0 11.2 9.9 10.2 400 4.1 4.6 9.4 8.6 15.0 6.5 11.0 8.5 15.1 8.6 450 7.1 5.6 5.0 7.5 5.5 4.1 7.5 6.5 6.6 7.6 500 7.5 10.2 10.8 6.8 8.9 11.0 9.8 10.1 9.5 5.2 Data Presentation and Analysis When back to the field study centre we attempted to interpret the results we had collected. I calculated the mean pebble size for each sample and from this calculated the standard deviation. The results are displayed on the next page. Mean b-axis and Standard deviation results: Distance From Start (m) Mean b-axis (cm) Standard Deviation 0 3.13 0.68 50 2.57 0.4196 100 2.31 0.928 150 2.68 0.6297 200 4.83 1.59 250 8.45 1.035 300 7.11 2.42 350 ...read more.


I believe that my results were reliable. Although there could have been things that could have been done to have made them more reliable. One for example could have been where we used footsteps to mark out 50m rather than measure every 50m with the tape measure. This would have made the results more accurate because we may have been taking results from slightly incorrect places. Also to make the results more reliable we could have gone further up the beach and taken more results. When taking the data there were several limitations that I had to take into consideration. One was that we only took 10 pebbles from each quadrat and if we had taken more of a range then we may have got more accurate results. This could not be done because of the limitation of time. Time also is a limitation that affected the amount of quadrats that we studied. We could have done more but the time as well as the tide coming in (affected by time) determined how many we could do. If we could have done more samples it would have improved it. Matthew Coward Matthew Coward Page ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Coastal Landforms section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Coastal Landforms essays

  1. To what extent do beach characteristics change with increasing distance along shore.

    Secondary data basically is comparing two sets of data the good old kept with current one and the limitation are that the data recorded in same week but not same day January 14th also good kept data of course has been done by different students.

  2. "An investigation into the methods of coastal management along Brighton's Coastline and the reasons ...

    Roundness Size (mm) Roundness Size (mm) Roundness Size (mm) Roundness Size (mm) Roundness Size (mm) Roundness Size (mm) Roundness Size (mm) Roundness Size (mm) Roundness 1 2 3 4 5 6 7 8 9 10 0 25 5 23 2 30 5 22 3 20 1 10 6 15 3 13 5 15 5 25 1 10 43 4

  1. An investigation into how beach material varies in shape and size up the beach.

    It is even possible that the pebbles were initially rounded down by the shore and then pushed up the beach in a storm. On average though, the pebbles are the roundest at 5m up the beach, which is what I stated in my hypothesis.

  2. Ecosystem at risk.

    At this height, the alpine environment is very similar to that of a tundra ecosystem, where there is a permanent snowline and no trees can grow. The Sagarmatha has been very successful in protecting a number of endangered species such as the wild yak, red panda, snow leopard, musk deer and the Himalayan black bear.

  1. The Holderness Coast

    �1million was spent on these coastal defences. The cliff has been angled and graded. The cliff has a layer of plastic under the soil, wire mesh and grass seeds.

  2. Investigate the effects of costal processes on Porlock Bay in Somerset and also to ...

    We then competed this task for the next 30 pebbles that lied on each meter of the tape measure. The diagram below shows the pebbleometer and where the pebble is placed to measure the pebble. A diagram of the pebbleometer that we used is shown below- Pebble When we finished

  1. North Stradbroke Island Report

    Seagrass beds form meadows in estuaries and shallow coastal waters with sandy or muddy floors (EPA). Seagrass is commonly thought as seaweed, a type of algae. However they are much different. Seagrasses produce flowers, fruit and seeds, have roots, leaves and rhizomes and are vascular plants (EPA).

  2. Report On the Change In Sediment Size Along the Length and Breadth of Hurst ...

    a middle sample and lower sampling point as close to the water as we could safely get. At each point a small number of stones were collected and placed into plastic bags to be taken back to the classroom for analysis.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work