In 2012 we carried out a three week excavation to investigate geophysical anomalies identified in Mr Unwin’s Field. One of these anomalies was circular (B on the graphic below) and such features are usually termed ‘ring-ditches‘, the other was a linear anomaly that was likely to be a ditch (A on the graphic below). The excavation was designed to work out whether the ring-ditch was a part of a burial mound or a prehistoric house and whether it came before or after the ditch.
The trench was laid out as a 10m x 10m square and excavated by hand. We started by removing the turf and then, in what was about the only hot and dry week of the Summer, we started excavating.
We removed ploughsoil and subsoil to a depth of about 0.4m. If a cubic metre of sand weighs about a tonne, we shifted about 40tonnes of spoil by hand! At 40cm deep we were on top of a layer archaeologists call ‘the natural’. This is a geological deposit (in our case a nasty clay) that pre-dates all human activity. Cut into the natural were some features. These included the ditch and arc of the ring-ditch we were looking for. These features were filled with a slightly darker and moister sediment than the surrounding natural and are visible in the following photos as dark stains.
The week was really dry and by the end of it the clay had baked hard. The dried out features had all but disappeared from view. We prayed for rain…