As you walk
down Station Approach you are heading towards the old station of 'Swindon
Town' which was opened in 1881-2. The railway line was part of the Midland
and Southwestern Junction Railway line, which ran from Cheltenham to Andover.
The line closed down in 1961.
Heading along
the old railway line, on the right hand side, you will find a railway
cutting that has been designated a Site of Specific Scientific Interest.
Swindon
Sea and Sand
The cutting
exposes a cross section of Swindon's Portland stone that spans a 10 million-year
period.
Swindon sand
and stone, a snip at just 145 million years old, sits at the top of the
pile followed by layers of cockley beds and finally a glauconite bed created
155 million years ago.
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A layer of Swindon Sand and Stone |
Each layer
tells a complex story of changing sea levels and ancient environments
- a little glimpse or window into the past.
Looking at
the exposed layers in the railway cutting you can trace the whole sequence
and see the changes.
In the top
layers of yellow Swindon Sandstone, jutting out at the top of the rock
face, there's obviously a lot of sand. This shows that at the time the
surrounding sea was shallow and fairly rough. The sand may even have been
washed in and piled up as a result of a storm.
If you look
at the bank on the other side of the Railway Bridge you can sometimes
see piles of this sand.
...stop at the signpost, marking this area as a Site of Specific Scientific
Interest, and take a closer look at the rock face of Swindon's
Portland Stone
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