Sequence strategraphy has been applied to understand the near shore sedimentological changes caused by sea level changes. Unconsolidated as well as consolidated teeth are tested. The consolidants used are flexible as well as non- flexible. It is a well-known phenomenon that teeth split and crack in collections, whether subfossil, natural history collection or as parts of objects. Presumably the deterioration is related to anisotropic dimensional changes caused by changing relative humidities.
Examples are the use of coloured ground structures and the use of oil paint.
Four prototype conservation treatments of canvas paintings have been identified, executed and thoroughly documented stepwise on approx. 700 photographic slides. The results are to be compared for technical similarities and differences, and traditionally stated reasons for procedural steps are to be compared with the treatment results and evaluated. An ongoing project focussing on the mechanical behaviour of the various layers as well as of the complete structure of canvas paintings and its implication in conservation procedures. The purpose of the project is to improve the documentation of canvas support as regard to the choice of conservation treatment in order to investigate if it is possible to predict the shrinkage of a canvas when humidified.