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Week
One 5th - 8th June The first
week of the trial excavation is now over, and it has been very successful.
We have managed to open three trenches, and have recovered many artefacts
- including worked bone and pottery! The weather has been very changeable,
with bands of rain blowing in from the southwest throughout each day.
Accessing the stack has been hard work because of these conditions. We
have also had to rebuild our tent due to severe wind damage, which ripped
the fly-sheet into shreds… Our team now has a new member, Dr Andrew Baines.
Andrew is an
experienced archaeologist and specialises in the Atlantic Iron Age. He
graduated from the University of Glasgow with his PhD last year.
Our first
trench was opened over the main structure on the island - the dun itself.
It measures 2 x 8 m and runs from the top of the dun, down the south side
and onto the plateau on which the dun sits. After removing the turf, we
could see the remains of a dry stone wall, and a large amount of tumbled
masonry below it. It seems likely that the tumbled masonry had fallen from
the wall. The stone is all Lewisian Gneiss.
After
cleaning all the topsoil from the tumble, Ian started the difficult task
of planning the masonry inside the trench. A planning frame is used as a
guide to create an accurate scale drawing of all the features. Trench
Two This trench
has been positioned over a geophysical anomaly which lies to the southwest
of the dun, on the lowest terrace. The anomaly can be seen in the
interpreted
geophysical data
as a possible stone building
revealed by both forms of geophysical instrument. This was the
last trench to be opened, and measures 5 x 3 m. It has only just been
de-turfed and cleaned back. It seems at this stage that the structures
revealed may only be natural rock outcrops, but further investigation next
week will clarify this.
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