Removal techniques

Miraculously, the many objects in and around the wrecks were preserved from destruction by the fact that they had quickly became covered in an anaerobic layer of sediment. However, not unlike a person who had been wounded, they had to be handled with great care. Waterlogged and consisting for the most part of organic materials (wood, leather, hemp, etc.), they were easily deformed.
The excavation team developed techniques for removing these objects so as to ensure both their survival and all of the information they might contain. Archaeologists used bases of various dimensions and all manner of bandages and wraps. These protected the objects from drying, from sunlight and from shocks, while at the same time holding them together. Complex and assembled objects were either removed en masse, or were subjected to a systematic disassembly of their components parts. Markers were attached to each piece to make it easier to reassemble them and study them on terra firma.
In order to identify any micro-vestiges that might be present, sampling was also systematically carried out in homogenous archaeological layers and closed environments.

Multimedia

Teddy Seguin (Adramar) © MCC / DRASSM
Removing a wooden object. Given their fragility, supports were used to transport items from the ocean floor to the lab. (Ref. : NAT05_SM0655)
Teddy Seguin (Adramar) © MCC / DRASSM
Bandage cloths are useful aids when removing objects. (Ref. : NAT05_SM0656)
Teddy Seguin (Adramar) © MCC / DRASSM
Removing a glass vessel. The object is wrapped in a bandage cloth before being taken to the surface. (Ref. : NAT06_SM0082)
Teddy Seguin (Adramar) © MCC / DRASSM
Taking material to the surface. (Ref. : Nat05_SM199)
Teddy Seguin © MCC / DRASSM
Removing the Davis quadrant from the wreck. (Ref. : NAT03_SM0316)
Teddy Seguin (Adramar) © MCC / DRASSM
Using a support and a large bandage cloth to remove a fiddle-block, which still has part of its hemp strop attached. (Ref. : NAT05_SM0753)
Teddy Seguin (Adramar) © MCC / DRASSM
Wrapping one of the Dauphine's pump tubes before bringing it to the surface. (Ref. : NAT05_SM0720)
Teddy Seguin (Adramar) © MCC / DRASSM
Wrapping a port lid before taking it to the surface. (Ref. : NAT05_SM0283)
Teddy Seguin (Adramar) © MCC / DRASSM
Going from water to air is a delicate operation; here, a port lid is removed from the sea. (Ref. : NAT05_SM0289)
Teddy Seguin (Adramar) © MCC / DRASSM
Putting a support in place before bringing up large curved oak pieces. (Ref. : NAT07_SM0231)
Teddy Seguin (Adramar) © MCC / DRASSM
Bringing a small cast-iron swivel gun to the surface. (Ref. : NAT07_SM0298)
Teddy Seguin (Adramar) © MCC / DRASSM
Numbering pieces of a wooden tub prior to removal. (Ref. : NAT07_SM0393)