Radiocarbon dating bronze
This means that Ava is now known to be around 200 years older than we had previously thought.
This significant difference is due to the newer, more advanced technology and techniques currently being employed.
Over the next few weeks I’m going to be writing brief overviews of the different pieces of research we have undertaken during the project.
I’m going to kick this off with the radiocarbon dates.
The site of the circle is located within a sensitive and fragile National Nature Reserve, Site of Special Scientific Interest and Natura 2000 site; Holme Beach should be visited with great care not to disturb nesting or wintering birds. Timber circle surrounding tree stump in submerged forest discovered by . During the Bronze Age freshwater reedswamp and alder carr spread over the saltmarsh and the monument itself.
Middle Bronze Age palstave within 15m (50 feet) of circle (now recorded under NHER 38041). Two timbers (context 35=37 and 65) may have been the first timbers set in place.
The structure was perceived to be under threat from damage and erosion from the sea - as such it was fully excavated.
These were placed on a southwest to northeast alignment, on the approximate direction of the midsummer rising sun and midwinter setting sun. All but one of the circumference timbers were placed with their bark facing outwards.
Generally, a wider date range will have a higher probability, and a narrow date range will have a lower probability.
The two dates are very similar, which helps give us more confidence in the date range for when Ava died and when she was buried. The original carbon dates (by Ambers et al, 1992) came back as 3700 ±50 BP, or as 2275-1945 cal BC at 95.4% (using Ox Cal v.4.3).
We can now get much more accurate dates using the advances in technology.