Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
|
Where is Fyfield Down located?
|
It is North West of Marlborough and North East of Avebury.
|
|
|
What was our aim?
|
Our aim was to assess Fyfield Down and the processes that have worked on it.
|
|
|
What were our two hypotheses?
|
1. That Fyfield Down has been affected by periglacial conditions as suggested by Fagg's Dry Valley Theory. 2. That the Sarsen Stones have been deposited by water during periglacial conditions. |
|
|
Give the 1st example of secondary research and its source:
|
It is one of the oldest National Nature Reserve opened in 1955. The Sarsen Stones are one of the reasons the site is an SSSI. The stones are also the same material as those in Stonehenge and Avebury. Source - www.gov.uk/government/publications/wiltshires-national-nature-reserves/
|
|
|
Give the 2nd example of secondary research and its source:
|
The geology of the area is mostly chalk as well as a clay containing flint as well as sand. This allows specific grassland patches to grow, mostly of acidic type. Source - www.ssi.naturalengland.org.uk/citation/citation_photo/1001301.pdf
|
|
|
Name some specifics about getting from school to the site of study and reasons for them:
|
The car park is 17 miles from school and located just off of the A4. This ensures a short journey time which allows us to come back more than once if we need to. It also saves school finances as not a large cost for travel. Finally it shows accessibility.
|
|
|
Why did we choose Fyfield Down?
|
We chose it because it is a quiet nature reserve allowing safe study. It is easy to get to with a route provided by the AA at www.theaa.com/walks/sarsen-stones-on-fyfield-down-421202. Also on the map there is an odd feature (the Sarsen Stones) which would allow us to test all of our theories. Finally there is no water allowing us to test our dry valley theory whilst being safe.
|
|
|
How did we minimalise risks to us and our fellow students?
|
We did this by first conducting a risk assessment. Then anything at a higher risk such as tripping over sun burn and things like that were solved by ensuring that people wore sensible footwear for the landscape and then ensuring people had hats and sun cream.
|
|
|
What type of method did you use for the valley cross section?
|
Systematic by taking readings every 2.5m.
|
|
|
How did you represent your gradient data?
|
We created a valley cross section which allowed us to have a picture of the valley on a piece of paper in font of us giving a clear shape.
|
|
|
How did you present your stone orientation data?
|
We used a radial graph which allowed us to see the frequency of stones within a range of different orientations. At the end we could see where the majority of stones were facing.
|
|
|
What are the advantages of the valley cross section?
|
- It is very visual - It gives a clear image of the valley allowing us to see whether or not it is symmetrical - Its a cheap and relatively simple graph |
|
|
What are the disadvantages of the valley cross section?
|
- The scale can often be hard to represent especially if one valley side is a lot steeper than the other - It takes a while to construct |
|
|
What are the advantages of the radial graph?
|
- It is very visual - It is good at showing where the most common bearing is - It really shows up anomalous results |
|
|
What are the disadvantages of the radial graph?
|
- If you have a large group of bearings and a small group of another the large group over powers the graph - If you have a large group of bearings it can sometimes look like an anomily |
|
|
What were the 1 Standard Deviation values and the mean for the orientation readings?
|
- Mean - 237.8 - 1 SD Val - 153.1 - +1 SD - 390.9 - - 1 SD - 84.8 |
|
|
With 1 Standard Deviation how much of the data should fall under the curve?
|
Only 68.3% of data should fall under the curve so because we had 10 pieces of data, 7 should fall under the curve.
|
|
|
What does our data show according to the Standard Deviation?
|
7 pieces of data fell under the curve with 1 Standard Deviation so we know that all of the orientations are pretty close to the mean.
|
|
|
If the data is close to the mean, then what does that tell us about the orientations?
|
This therefore shows that all of the stones were facing pretty much the same way.
|
|
|
Relate our statistics back to the hypothesis:
|
We can therefore say that the Sarsen Stones were deposited by water during periglacial times because the orientations are almost the same.
|
|
|
So what about the Dry Valley theory?
|
We believe that during periglacial times the ground would have been frozen. Therefore any water was forced to run over the surface moving the stones. As the ground defrosted the geology allowed water to seep through, hence we have a dry valley.
|
|
|
How could the investigation be improved?
|
- As always take more readings - Go further down the valley - Take readings in different places to see changes - See if similar results are collected in different countries - Extend the valley cross section further than the 25m we did |
|
|
How did the investigation improve your understanding of geography?
|
- It enabled me to see the processes impacts hands on - Being there allows you to have a better understanding of what happens - It gives a chance to collect primary data |
|
|
How did ICT help in our investigation?
|
ICT allowed us to initially plan where we wanted to have our investigation and know where the safe areas to stop are by using www.ordnancesurvey.co.uk. It also allowed us to gather secondary research and find out why it is an SSSI.
|
