Artefact Handling At ADMAT's Maritime Archaeological Centre
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During the project we were able to examine some of the concretions from The Tile Wreck. Two concretions appeared to be carpenters tools, but it was unknown if any of the iron still remained. The decision was given with approval of ONPCS, to make sectional pieces out of two artefacts to enable us to assess the state of the remaining iron in the concretion. When these were cut open it proved that the artefacts were totally "ghost concretions" in that all the iron had leached into the concretion (creating the concretion) leaving a void.
These sections were carefully cleaned enabling the team to see what the items were originally.
Team Leader Raimund Krobe, with Jonathan Cho Fook Lun and Petwr Heyes, carefully cutting one of the ghost concretions under the watchful eyes of staff member May Loo
One of the possible plane blades with a white French faienceware beaker concreted to it, having a section cut
The underside of the possible plane blades with a white French faienceware beaker concreted to it, having a section cut
Close up of the French Faienceware beaker which at this point was still concreted to the ghost concretion
During the examination some fibrous residue was found in the concretion. This gave the appearance of a type of felt, which might have been used to wrap the item
Some of the concretion has been carefully removed from the French faienceware beaker, leaving a "tide mark"
Cross section showing two items in the concretion. As further cuts were made the ghost items got closer
In the void there were holes which went through the iron object which were now occupied by concretion
The depression is now clearly an item of its own at a further cut 4 cm away from the last
The fourth concretion to be examined but not cut, using the other cuts as a basis of the analysis
Please go to page 4 to continue.
ADMAT's maritime archaeological work on this wreck site was assisted by ADMAT-FRANCE a non profit organisation based in the Institut de Paléontologie Humaine, Muséum National d’Histoire Naturelle, Paris.
ADMAT-FRANCE is a sub division of the Anglo ~ Danish Maritime Archaeological Team
ADMAT is delighted to have an association with Muséum Nationald’Histoire Naturelle at Paris, départememt Préhistoire, UMR-CNRS 7194.
